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Page Construction Tags

This taglib contains tags used to create struts input forms, as well as other tags generally useful in the creation of HTML-based user interfaces.

Many of the tags in this tag library will throw a JspException at runtime when they are utilized incorrectly (such as when you specify an invalid combination of tag attributes). JSP allows you to declare an "error page" in the <%@ page %> directive. If you wish to process the actual exception that caused the problem, it is passed to the error page as a request attribute under key org.apache.struts.action.EXCEPTION.

Tag Name	Description
base	Render an HTML <base> Element
button	Render A Button Input Field
cancel	Render a Cancel Button
checkbox	Render A Checkbox Input Field
errors	Conditionally display a set of accumulated error messages.
file	Render A File Select Input Field
form	Define An Input Form
frame	Render an HTML frame element
hidden	Render A Hidden Field
html	Render an HTML <html> Element
image	Render an input tag of type "image"
img	Render an HTML img tag
javascript	Render JavaScript validation based on the validation rules loaded by the ValidatorPlugIn.
link	Render an HTML anchor or hyperlink
messages	Conditionally display a set of accumulated messages.
multibox	Render A Checkbox Input Field
option	Render A Select Option
options	Render a Collection of Select Options
optionsCollection	Render a Collection of Select Options
password	Render A Password Input Field
radio	Render A Radio Button Input Field
reset	Render A Reset Button Input Field
rewrite	Render an URI
select	Render A Select Element
submit	Render A Submit Button
text	Render An Input Field of Type text
textarea	Render A Textarea
xhtml	Render HTML tags as XHTML

base - Render an HTML <base> Element

Renders an HTML <base> element with an href attribute pointing to the absolute location of the enclosing JSP page. This tag is valid only when nested inside an HTML <head> element.

This tag is useful because it allows you to use relative URL references in the page that are calculated based on the URL of the page itself, rather than the URL to which the most recent submit took place (which is where the browser would normally resolve relative references against).

Attribute Name	Description
target	The window target for this base reference. [RT Expr]
server	The server name to use instead of request.getServerName(). [RT Expr]

button - Render A Button Input Field

Renders an HTML <input> element of type button, populated from the specified value or the content of this tag body. This tag is only valid when nested inside a form tag body.

If a graphical button is needed (a button with an image), then the image tag is more appropriate.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of `logic:iterate` tag. If `true` then name of the html tag will be rendered as "propertyName[34]". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of the request parameter that will be included with this submission, set to the specified value. [Required] [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	Value of the label to be placed on this button. This value will also be submitted as the value of the specified request parameter. [Body of this tag (if any), or "Click"] [RT Expr]

cancel - Render a Cancel Button

Renders an HTML <input> element of type submit. This tag is only valid when nested inside a form tag body. Pressing of this submit button causes the action servlet to bypass calling the associated form bean validate() method. The action is called normally.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of the request parameter that will be included with this submission, set to the specified value. WARNING - If you set this attribute to a value other than the default, this will NOT be recognized as the cancel key by the Struts controller servlet or the `Action.isCancelled()` method. You will need to do your own cancel detection. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	Value of the label to be placed on this button. This value will also be submitted as the value of the specified request parameter. [Body of this tag (if any), or "Cancel"] [RT Expr]

checkbox - Render A Checkbox Input Field

Renders an HTML <input> element of type checkbox, populated from the specified value or the specified property of the bean associated with our current form. This tag is only valid when nested inside a form tag body.

NOTE: The underlying property value associated with this field should be of type boolean, and any value you specify should correspond to one of the Strings that indicate a true value ("true", "yes", or "on"). If you wish to utilize a set of related String values, consider using the multibox tag.

WARNING: In order to correctly recognize unchecked checkboxes, the ActionForm bean associated with this form must include a statement setting the corresponding boolean property to false in the reset() method.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of `logic:iterate` tag. If `true` then name of the html tag will be rendered as "id[34].propertyName". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
name	The attribute name of the bean whose properties are consulted when rendering the current value of this input field. If not specified, the bean associated with the form tag we are nested within is utilized. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of the request parameter that will be included with this submission, set to the specified value. [Required] [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	The value to be transmitted if this checkbox is checked when the form is submitted. If not specified, the value "on" will be returned. [RT Expr]

errors - Conditionally display a set of accumulated error messages.

Displays a set of error messages prepared by a business logic component and stored as an ActionErrors object, a String, or a String array in request scope. If such a bean is not found, nothing will be rendered.

In order to use this tag successfully, you must have defined an application scope MessageResources bean under the default attribute name, with optional definitions of the following message keys:

errors.header - Text that will be rendered before the error messages list. Typically, this message text will end with <ul> to start the error messages list.
errors.footer - Text that will be rendered after the error messages list. Typically, this message text will begin with </ul> to end the error messages list.
errors.prefix - Text that will be rendered before each individual error in the list.
errors.suffix - Text that will be rendered after each individual error in the list.

Attribute Name	Description
bundle	The servlet context attribute key for the MessageResources instance to use. If not specified, defaults to the application resources configured for our action servlet. [RT Expr]
locale	The session attribute key for the Locale used to select messages to be displayed. If not specified, defaults to the Struts standard value. [RT Expr]
name	Name of the request scope bean under which our error messages have been stored. If not present, the name specified by the `Globals.ERROR_KEY` constant string will be used. [RT Expr]
property	Name of the property for which error messages should be displayed. If not specified, all error messages (regardless of property) are displayed. [RT Expr]

file - Render A File Select Input Field

Renders an HTML <input> element of type file, defaulting to the specified value or the specified property of the bean associated with our current form. This tag is only valid when nested inside a form tag body.

As with the corresponding HTML <input> element, the enclosing form element must specify "POST" for the method attribute, and "multipart/form-data" for the enctype attribute. For example:

    <html:form method="POST" enctype="multipart/form-data">
        <html:file property="theFile" />
    </html:form>

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
accept	Comma-delimited set of content types that the server you submit to knows how to process. This list can be used by the client browser to limit the set of file options that is made available for selection. If not specified, no content type list will be sent. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of `logic:iterate` tag. If `true` then name of the html tag will be rendered as "id[34].propertyName". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
maxlength	Maximum number of input characters to accept. This is ignored by most browsers. [No limit] [RT Expr]
name	The attribute name of the bean whose properties are consulted when rendering the current value of this input field. If not specified, the bean associated with the form tag we are nested within is utilized. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of the request parameter that will be included with this submission, set to the specified value. [Required] [RT Expr]
size	Size of the file selection box to be displayed. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	NOTE: When setting this to some value, whether intentional or as the result (for example) of validation errors forcing the user back to the original jsp, this value is ignored by most browsers (for security reasons). This means that your users will have to re-select any previously selected files when submitting the form. Opera web browser will prompt the user so they have a chance to abort the submit. Value to which this field should be initialized. [Use the corresponding bean property value or body content (if any) if property is not specified] [RT Expr]

form - Define An Input Form

Renders an HTML <form> element whose contents are described by the body content of this tag. The form implicitly interacts with the specified request scope or session scope bean to populate the input fields with the current property values from the bean.

The form bean is located, and created if necessary, based on the form bean specification for the associated ActionMapping.

Attribute Name	Description
action	The URL to which this form will be submitted. This value is also used to select the ActionMapping we are assumed to be processing, from which we can identify the appropriate form bean and scope. If you are using extension mapping for selecting the controller servlet, this value should be equal to the `path` attribute of the corresponding `<action>` element, optionally followed by the correct extension suffix. If you are using path mapping to select the controller servlet, this value should be exactly equal to the `path` attribute of the corresponding `<action>` element. [Required] [RT Expr]
acceptCharset	The list of character encodings for input data that the server should accept. Since: Struts 1.2.2 [RT Expr]
enctype	The content encoding to be used to submit this form, if the method is POST. This must be set to "multipart/form-data" if you are using the file tag to enable file upload. If not specified, the browser default (normally "application/x-www-form-urlencoded") is used. [RT Expr]
focus	The field name (among the fields on this form) to which initial focus will be assigned with a JavaScript function. If not specified, no special JavaScript for this purpose will be rendered. [RT Expr]
focusIndex	If the focus field is a field array, such as a radio button group, you can specify the index in the array to receive focus. Since: Struts 1.1 [RT Expr]
method	The HTTP method that will be used to submit this request (GET, POST). [POST] [RT Expr]
onreset	JavaScript event handler executed if the form is reset. [RT Expr]
onsubmit	JavaScript event handler executed if the form is submitted. [RT Expr]
scriptLanguage	The form's focus <script> element will not contain a language attribute when this is set to false. The default is true but this property is ignored in XHMTL mode. Since: Struts 1.2 [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
target	Window target to which this form is submitted, such as for use in framed presentations. [RT Expr]

frame - Render an HTML frame element

Renders an HTML <frame> element with processing for the src attribute that is identical to that performed by the <html:link> tag for the href attribute. URL rewriting will be applied automatically, to maintain session state in the absence of cookies.

The base URL for this frame is calculated based on which of the following attributes you specify (you must specify exactly one of them):

forward - Use the value of this attribute as the name of a global ActionForward to be looked up, and use the module-relative or context-relative URI found there.
href - Use the value of this attribute unchanged.
page - Use the value of this attribute as a module-relative URI, and generate a server-relative URI by including the context path and application prefix.
action - Use the value of this attribute as the logical name of a global Action that contains the actual content-relative URI of the destination of this transfer.

Normally, the hyperlink you specify with one of the attributes described in the previous paragraph will be left unchanged (other than URL rewriting if necessary). However, there are two ways you can append one or more dynamically defined query parameters to the hyperlink -- specify a single parameter with the paramId attribute (and its associated attributes to select the value), or specify the name (and optional property) attributes to select a java.util.Map bean that contains one or more parameter ids and corresponding values.

To specify a single parameter, use the paramId attribute to define the name of the request parameter to be submitted. To specify the corresponding value, use one of the following approaches:

Specify only the paramName attribute - The named JSP bean (optionally scoped by the value of the paramScope attribute) must identify a value that can be converted to a String.
Specify both the paramName and paramProperty attributes - The specified property getter method will be called on the JSP bean identified by the paramName (and optional paramScope) attributes, in order to select a value that can be converted to a String.

If you prefer to specify a java.util.Map that contains all of the request parameters to be added to the hyperlink, use one of the following techniques:

Specify only the name attribute - The named JSP bean (optionally scoped by the value of the scope attribute) must identify a java.util.Map containing the parameters.
Specify both name and property attributes - The specified property getter method will be called on the bean identified by the name (and optional scope) attributes, in order to return the java.util.Map containing the parameters.

As the Map is processed, the keys are assumed to be the names of query parameters to be appended to the hyperlink. The value associated with each key must be either a String or a String array representing the parameter value(s), or an object whose toString() method will be called. If a String array is specified, more than one value for the same query parameter name will be created.

Additionally, you can request that the current transaction control token, if any, be included in the generated hyperlink by setting the transaction attribute to true. You can also request that an anchor ("#xxx") be added to the end of the URL that is created by any of the above mechanisms, by using the anchor attribute.

Attribute Name	Description
action	Logical name of a global `Action` that contains the actual content-relative URI of the destination of this transfer. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute. Additionally, you can specify a `module` prefix for linking to other modules. [RT Expr]
module	Prefix name of a `Module` that contains the action mapping for the `Action` that is specified by the `action` attribute. You must specify an `action` attribute for this to have an effect. Note: Use "" to map to the default module. [RT Expr]
anchor	Optional anchor tag ("#xxx") to be added to the generated hyperlink. Specify this value without any "#" character. [RT Expr]
forward	Logical name of a global `ActionForward` that contains the actual content-relative URI of the destination of this transfer. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute. [RT Expr]
frameborder	Should a frame border be generated around this frame (1) or not (0)? [RT Expr]
frameName	Value for the `name` attribute of the rendered `<frame>` element. [RT Expr]
href	The URL to which this hyperlink will transfer control if activated. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute. [RT Expr]
longdesc	URI of a long description of the frame. This description should supplement the short description provided by the `title` attribute, and may be particularly useful for non-visual user agents. [RT Expr]
marginheight	The amount of space (in pixels) to be left between the frame's contents and its top and bottom margins. [RT Expr]
marginwidth	The amount of space (in pixels) to be left between the frame's contents and its left and right margins. [RT Expr]
name	The name of a JSP bean that contains a `Map` representing the query parameters (if `property` is not specified), or a JSP bean whose property getter is called to return a `Map` (if `property` is specified). [RT Expr]
noresize	Should users be disallowed from resizing the frame? (true, false). [RT Expr]
page	The module-relative path (beginning with a "/" character) to which this hyperlink will transfer control if activated. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute. [RT Expr]
paramId	The name of the request parameter that will be dynamically added to the generated hyperlink. The corresponding value is defined by the `paramName` and (optional) `paramProperty` attributes, optionally scoped by the `paramScope` attribute [RT Expr]
paramName	The name of a JSP bean that is a String containing the value for the request parameter named by `paramId` (if `paramProperty` is not specified), or a JSP bean whose property getter is called to return a String (if `paramProperty` is specified). The JSP bean is constrained to the bean scope specified by the `paramScope` property, if it is specified. [RT Expr]
paramProperty	The name of a property of the bean specified by the `paramName` attribute, whose return value must be a String containing the value of the request parameter (named by the `paramId` attribute) that will be dynamically added to this hyperlink. [RT Expr]
paramScope	The scope within which to search for the bean specified by the `paramName` attribute. If not specified, all scopes are searched. [RT Expr]
property	The name of a property of the bean specified by the `name` attribute, whose return value must be a `java.util.Map` containing the query parameters to be added to the hyperlink. You must specify the `name` attribute if you specify this attribute. [RT Expr]
scope	The scope within which to search for the bean specified by the `name` attribute. If not specified, all scopes are searched. [RT Expr]
scrolling	Should scroll bars be created unconditionally (yes), never (no), or only when needed (auto)? [RT Expr]
style	CSS styles to be applied to this element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
transaction	If set to `true`, any current transaction control token will be included in the generated hyperlink, so that it will pass an `isTokenValid()` test in the receiving Action. [RT Expr]

hidden - Render A Hidden Field

Renders an HTML <input> element of type hidden, populated from the specified value or the specified property of the bean associated with our current form. This tag is only valid when nested inside a form tag body.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of `logic:iterate` tag. If `true` then name of the html tag will be rendered as "id[34].propertyName". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
name	The attribute name of the bean whose properties are consulted when rendering the current value of this input field. If not specified, the bean associated with the form tag we are nested within is utilized. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of this input field, and the name of the corresponding bean property if value is not specified. The corresponding bean property (if any) must be of type String. [Required] [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	Value to which this field should be initialized. [Use the corresponding bean property value] [RT Expr]
write	Should the value of this field also be rendered to the response page to make it visible, in addition to creating an HTML type="hidden" element? By default, only the hidden element is created. [RT Expr]

html - Render an HTML <html> Element

Renders an HTML <html> element with language attributes extracted from the user's current Locale object, if there is one.

Attribute Name Description

lang

Attribute Name	Description
lang	Renders a lang attribute with the locale stored in the user's session. If not found in the session, the language from the `Accept-Language` HTTP header is used. If still not found, the default language for the server is used. Since: Struts 1.2 [RT Expr]
locale	Set to `true` in order to store a Locale in the session based on the current request's `Accept-Language` header (if any) if none has currently been set. This attribute will create a session if one does not already exist. The lang attribute is rendered with the appropriate language code. DEPRECATED: Creating a session is undesirable for apps that don't support them. Use the lang attribute to achieve the same functionality without creating a session. [RT Expr]
xhtml	Set to `true` in order to render `xml:lang` and `xmlns` attributes on the generated `html` element. This also causes all other html tags to render as XHTML 1.0 (the <html:xhtml/> tag has a similar purpose). Since: Struts 1.1 [RT Expr]

Renders a lang attribute with the locale stored in the user's session. If not found in the session, the language from the Accept-Language HTTP header is used. If still not found, the default language for the server is used.

Since: Struts 1.2

[RT Expr]

locale

Set to true in order to store a Locale in the session based on the current request's Accept-Language header (if any) if none has currently been set. This attribute will create a session if one does not already exist. The lang attribute is rendered with the appropriate language code.

DEPRECATED: Creating a session is undesirable for apps that don't support them. Use the lang attribute to achieve the same functionality without creating a session.

[RT Expr]

xhtml

Set to true in order to render xml:lang and xmlns attributes on the generated html element. This also causes all other html tags to render as XHTML 1.0 (the <html:xhtml/> tag has a similar purpose).

Since: Struts 1.1

[RT Expr]

image - Render an input tag of type "image"

Renders an HTML <input> tag of type "image". The base URL for this image is calculated directly based on the value specified in the src or page attributes, or indirectly by looking up a message resource string based on the srcKey or pageKey attributes. You must specify exactly one of these attributes.

If you would like to obtain the coordinates of the mouse click that submitted this request, see the information below on the property attribute.

This tag is only valid when nested inside a form tag body.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
align	The alignment option for this image. DEPRECATED: The align attribute is deprecated in HTML 4.x. The suggested alternative is to use CSS. Please see http://www.w3.org/TR/REC-html40/struct/objects.html#h-13.7.4 for more details. [RT Expr]
alt	The alternate text for this image. [RT Expr]
altKey	The message resources key of the alternate text for this image. [RT Expr]
border	The width (in pixels) of the border around this image. [RT Expr]
bundle	The servlet context attribute key for the MessageResources instance to use. If not specified, defaults to the application resources configured for our action servlet. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of logic:iterate tag. If `true` then name of the html tag will be rendered as "propertyName[34]". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
locale	The session attribute key for the Locale used to select internationalized messages. If not specified, defaults to the Struts standard value. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
page	The module-relative path of the image for this input tag. [RT Expr]
pageKey	The key of the message resources string specifying the module-relative path of the image for this input tag. [RT Expr]
property	The property name of this image tag. The parameter names for the request will appear as "property.x" and "property.y", the x and y representing the coordinates of the mouse click for the image. A way of retrieving these values through a form bean is to define getX(), getY(), setX(), and setY() methods, and specify your property as a blank string (property=""). [RT Expr]
src	The source URL of the image for this input tag. [RT Expr]
srcKey	The key of the message resources string specifying the source URL of the image for this input tag. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	The value that will be submitted if this image button is pressed. [RT Expr]

img - Render an HTML img tag

Renders an HTML <img> element with the image at the specified URL. Like the link tag, URL rewriting will be applied automatically to the value specified in src, page, or action to maintain session state in the absence of cookies. This will allow dynamic generation of an image where the content displayed for this image will be taken from the attributes of this tag.

The base URL for this image is calculated directly based on the value specified in src, page, or action or page, or indirectly by looking up a message resource string based on the srcKey or pageKey attributes. You must specify exactly one of these attributes.

Normally, the src, page, or action that you specify will be left unchanged (other than URL rewriting if necessary). However, there are two ways you can append one or more dynamically defined query parameters to the src URL -- specify a single parameter with the paramId attribute (at its associated attributes to select the value), or specify the name (and optional property) attributes to select a java.util.Map bean that contains one or more parameter ids and corresponding values.

To specify a single parameter, use the paramId attribute to define the name of the request parameter to be submitted. To specify the corresponding value, use one of the following approaches:

Specify only the paramName attribute - The named JSP bean (optionally scoped by the value of the paramScope attribute) must identify a value that can be converted to a String.
Specify both the paramName and paramProperty attributes - The specified property getter will be called on the JSP bean identified by the paramName (and optional paramScope) attributes, in order to select a value that can be converted to a String.

If you prefer to specify a java.util.Map that contains all of the request parameters to be added to the hyperlink, use one of the following techniques:

Specify only the name attribute - The named JSP bean (optionally scoped by the value of the scope attribute) must identify a java.util.Map containing the parameters.
Specify both name and property attributes - The specified property getter method will be called on the bean identified by the name (and optional scope) attributes, in order to return the java.util.Map containing the parameters.

As the Map is processed, the keys are assumed to be the names of query parameters to be appended to the src URL. The value associated with each key must be either a String or a String array representing the parameter value(s), or an object whose toString() method will be called. If a String array is specified, more than one value for the same query parameter name will be created.

You can specify the alternate text for this image (which most browsers display as pop-up text block when the user hovers the mouse over this image) either directly, through the alt attribute, or indirectly from a message resources bundle, using the bundle and altKey attributes.

Attribute Name	Description
align	Where the image is aligned to. Can be one of the following attributes: left - left justify, wrapping text on right right -right justify, wrapping test on left top - aligns the image with the top of the text on the same row middle - aligns the image's vertical center with the text base line bottom - aligns the image with the bottom of the text's base line texttop - aligns the image's top with that of the text font on the same line absmiddle - aligns the image's vertical center with the absolute center of the text absbottom - aligns the image with the absolute bottom of the text font on the same row [RT Expr]
alt	And alternative text to be displayed in browsers that don't support graphics. Also used often as type of context help over images. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
border	The width of the border surrounding the image. [RT Expr]
bundle	The servlet context attribute key for the MessageResources instance to use. If not specified, defaults to the application resources configured for our action servlet. [RT Expr]
contextRelative	If set to "true", this "anchors" the image src at the application context rather than the module context when the 'page' attribute is used to specify an image path. DEPRECATED:Use module attribute instead; will be removed in a release afer 1.2.0. [RT Expr]
height	The height of the image being displayed. This parameter is very nice to specify (along with `width`) to help the browser render the page faster. [RT Expr]
hspace	The amount of horizontal spacing between the icon and the text. The text may be in the same paragraph, or be wrapped around the image. [RT Expr]
imageName	The scriptable name to be defined within this page, so that you can reference it with intra-page scripts. In other words, the value specified here will render a "name" element in the generated image tag. [RT Expr]
ismap	The name of the server-side map that this image belongs to. [RT Expr]
locale	The name of the request or session Locale attribute used to look up internationalized messages. [RT Expr]
lowsrc	An image for people with low resolution graphics cards. DEPRECATED: This attribute is not defined in the HTML 4.01 spec and will be removed in a future version of Struts. [RT Expr]
name	The name of a JSP bean that contains a `Map` representing the query parameters (if `property` is not specified), or a JSP bean whose property getter is called to return a `Map` (if `property` is specified). [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onkeydown	JavaScript event handler that is executed when this element receives a key down event. [RT Expr]
onkeypress	JavaScript event handler that is executed when this element receives a key press event. [RT Expr]
onkeyup	JavaScript event handler that is executed when this element receives a key up event. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
paramId	The name of the request parameter that will be dynamically added to the generated src URL. The corresponding value is defined by the `paramName` and (optional) `paramProperty` attributes, optionally scoped by the `paramScope` attribute [RT Expr]
page	The module-relative path, starting with a slash, of the image to be displayed by this tag. The rendered URL for this image will automatically prepend the context path of this web application (in the same manner as the `page` attribute on the link tag works), in addition to any necessary URL rewriting. You must specify either the `page` attribute or the `src` attribute. [RT Expr]
pageKey	The message key, in the message resources bundle named by the `bundle` attribute, of the String to be used as the module-relative path for this image. [RT Expr]
action	The action, starting with a slash, that will render the image to be displayed by this tag. The rendered URL for this image will automatically prepend the context path of this web application (in the same manner as the `action` attribute on the link tag works), in addition to any necessary URL rewriting. You must specify the `action`, `page` attribute or the `src` attribute. Additionally, you can specify a `module` prefix for linking to other modules. [RT Expr]
module	Prefix name of a `Module` that contains the action mapping for the `Action` that is specified by the `action` attribute. You must specify an `action` attribute for this to have an effect. Note: Use "" to map to the default module. [RT Expr]
paramName	The name of a JSP bean that is a String containing the value for the request parameter named by `paramId` (if `paramProperty` is not specified), or a JSP bean whose property getter is called to return a String (if `paramProperty` is specified). The JSP bean is constrained to the bean scope specified by the `paramScope` property, if it is specified. [RT Expr]
paramProperty	The name of a property of the bean specified by the `paramName` attribute, whose return value must be a String containing the value of the request parameter (named by the `paramId` attribute) that will be dynamically added to this src URL. [RT Expr]
paramScope	The scope within which to search for the bean specified by the `paramName` attribute. If not specified, all scopes are searched. [RT Expr]
property	The name of a property of the bean specified by the `name` attribute, whose return value must be a `java.util.Map` containing the query parameters to be added to the src URL. You must specify the `name` attribute if you specify this attribute. [RT Expr]
scope	The scope within which to search for the bean specified by the `name` attribute. If not specified, all scopes are searched. [RT Expr]
src	The URL to which this image will be transferred from This image may be dynamically modified by the inclusion of query parameters, as described in the tag description. This value will be used unmodified (other than potential URL rewriting) as the value of the "src" attribute in the rendered tag. You must specify either the `page` attribute or the `src` attribute. [RT Expr]
srcKey	The message key, in the message resources bundle named by the `bundle` attribute, of the String to be used as the URL of this image. [RT Expr]
style	CSS styles to be applied to this element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
useLocalEncoding	If set to `true`, LocalCharacterEncoding will be used, that is, the characterEncoding set to the HttpServletResponse, as prefered character encoding rather than UTF-8, when URLEncoding is done on parameters of the URL. [RT Expr]
usemap	The name of the map as defined within this page for mapping hot-spot areas of this image. [RT Expr]
vspace	The amount of vertical spacing between the icon and the text, above and below. [RT Expr]
width	The width of the image being displayed. This parameter is very nice to specify (along with `height`) to help the browser render the page faster. [RT Expr]

javascript - Render JavaScript validation based on the validation rules loaded by the ValidatorPlugIn.

Render JavaScript validation based on the validation rules loaded by the ValidatorPlugIn. The set of validation rules that should be generated is based on the formName attribute passed in, which should match the name attribute of the form element in the xml file.

The dynamicJavascript and staticJavascript attributes default to true, but if dynamicJavascript is set to true and staticJavascript is set to false then only the dynamic JavaScript will be rendered. If dynamicJavascript is set to false and staticJavascript is set to true then only the static JavaScript will be rendered which can then be put in separate JSP page so the browser can cache the static JavaScript.

Attribute Name	Description
cdata	If set to "true" and XHTML has been enabled, the JavaScript will be wrapped in a CDATA section to prevent XML parsing. The default is "true" to comply with the W3C's recommendation. Since: Struts 1.1 [RT Expr]
dynamicJavascript	Whether or not to render the dynamic JavaScript. Defaults to `true`.
formName	The key (form name) to retrieve a specific set of validation rules. If "dynamicJavascript" is set to `true` and formName is missing or is not recognized by the `ValidatorPlugIn`, a JspException will be thrown. [RT Expr]
method	The alternate JavaScript method name to be used instead of the of the default. The default is 'validate' concatenated in front of the key (form name) passed in (ex: validateRegistrationForm). [RT Expr]
page	The current page of a set of validation rules if the page attribute for the field element in the xml file is in use. [RT Expr]
scriptLanguage	The <script> element will not contain a language attribute when this is set to false. The default is true but this property is ignored in XHTML mode. Since: Struts 1.2 [RT Expr]
src	The src attribute's value when defining the html script element. [RT Expr]
staticJavascript	Whether or not to render the static JavaScript. Defaults to `true`.
htmlComment	Whether or not to enclose the javascript with HTML comments. This attribute is ignored in XHTML mode because the script would be deleted by the XML parser. See the cdata attribute for details on hiding scripts from XML parsers. Defaults to `true`. [RT Expr]

link - Render an HTML anchor or hyperlink

Renders an HTML <a> element as an anchor definition (if "linkName" is specified) or as a hyperlink to the specified URL. URL rewriting will be applied automatically, to maintain session state in the absence of cookies. The content displayed for this hyperlink will be taken from the body of this tag.

The base URL for this hyperlink is calculated based on which of the following attributes you specify (you must specify exactly one of them):

forward - Use the value of this attribute as the name of a global ActionForward to be looked up, and use the module-relative or context-relative URI found there.
action - Use the value of this attribute as the name of a Action to be looked up, and use the module-relative or context-relative URI found there.
href - Use the value of this attribute unchanged.
page - Use the value of this attribute as a module-relative URI, and generate a server-relative URI by including the context path and module prefix.

To specify a single parameter, use the paramId attribute to define the name of the request parameter to be submitted. To specify the corresponding value, use one of the following approaches:

Specify only the paramName attribute - The named JSP bean (optionally scoped by the value of the paramScope attribute) must identify a value that can be converted to a String.
Specify both the paramName and paramProperty attributes - The specified property getter method will be called on the JSP bean identified by the paramName (and optional paramScope) attributes, in order to select a value that can be converted to a String.

If you prefer to specify a java.util.Map that contains all of the request parameters to be added to the hyperlink, use one of the following techniques:

Specify only the name attribute - The named JSP bean (optionally scoped by the value of the scope attribute) must identify a java.util.Map containing the parameters.
Specify both name and property attributes - The specified property getter method will be called on the bean identified by the name (and optional scope) attributes, in order to return the java.util.Map containing the parameters.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
action	Logical name of a `Action` that contains the actual content-relative URI of the destination of this transfer. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, the `linkName` attribute, or the `page` attribute. Additionally, you can specify a `module` prefix for linking to other modules. [RT Expr]
module	Prefix name of a `Module` that contains the action mapping for the `Action` that is specified by the `action` attribute. You must specify an `action` attribute for this to have an effect. Note: Use "" to map to the default module. [RT Expr]
anchor	Optional anchor tag ("#xxx") to be added to the generated hyperlink. Specify this value without any "#" character. [RT Expr]
forward	Logical name of a global `ActionForward` that contains the actual content-relative URI of the destination of this transfer. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, the `linkName` attribute, or the `page` attribute. [RT Expr]
href	The URL to which this hyperlink will transfer control if activated. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, the `linkName` attribute, or the `page` attribute. [RT Expr]
indexed	Valid only inside of logic:iterate tag. If `true` then indexed parameter with name from indexId attribute will be added to the query string. Indexed parameter looks like "index[32]". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
indexId	By this attribute different name for the indexed parameter can be specified. Take a look to the "indexed" attribute for details. [RT Expr]
linkName	The anchor name to be defined within this page, so that you can reference it with intra-page hyperlinks. In other words, the value specified here will render a "name" element in the generated anchor tag. [RT Expr]
name	The name of a JSP bean that contains a `Map` representing the query parameters (if `property` is not specified), or a JSP bean whose property getter is called to return a `Map` (if `property` is specified). [RT Expr]
onblur	JavaScript event handler that is executed when this element loses input focus. [RT Expr]
onclick	JavaScript event handler that is executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler that is executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler that is executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler that is executed when this element receives a key down event. [RT Expr]
onkeypress	JavaScript event handler that is executed when this element receives a key press event. [RT Expr]
onkeyup	JavaScript event handler that is executed when this element receives a key up event. [RT Expr]
onmousedown	JavaScript event handler that is executed when this element receives a mouse down event. [RT Expr]
onmousemove	JavaScript event handler that is executed when this element receives a mouse move event. [RT Expr]
onmouseout	JavaScript event handler that is executed when this element receives a mouse out event. [RT Expr]
onmouseover	JavaScript event handler that is executed when this element receives a mouse over event. [RT Expr]
onmouseup	JavaScript event handler that is executed when this element receives a mouse up event. [RT Expr]
page	The module-relative path (beginning with a "/" character) to which this hyperlink will transfer control if activated. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, `forward` attribute, the `href` attribute, the `linkName` attribute, or the `page` attribute. [RT Expr]
paramId	The name of the request parameter that will be dynamically added to the generated hyperlink. The corresponding value is defined by the `paramName` and (optional) `paramProperty` attributes, optionally scoped by the `paramScope` attribute [RT Expr]
paramName	The name of a JSP bean that is a String containing the value for the request parameter named by `paramId` (if `paramProperty` is not specified), or a JSP bean whose property getter is called to return a String (if `paramProperty` is specified). The JSP bean is constrained to the bean scope specified by the `paramScope` property, if it is specified. [RT Expr]
paramProperty	The name of a property of the bean specified by the `paramName` attribute, whose return value must be a String containing the value of the request parameter (named by the `paramId` attribute) that will be dynamically added to this hyperlink. [RT Expr]
paramScope	The scope within which to search for the bean specified by the `paramName` attribute. If not specified, all scopes are searched. [RT Expr]
property	The name of a property of the bean specified by the `name` attribute, whose return value must be a `java.util.Map` containing the query parameters to be added to the hyperlink. You must specify the `name` attribute if you specify this attribute. [RT Expr]
scope	The scope within which to search for the bean specified by the `name` attribute. If not specified, all scopes are searched. [RT Expr]
style	CSS styles to be applied to this element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
target	The window target in which the resource requested by this hyperlink will be displayed, for example in a framed presentation. [RT Expr]
title	The advisory title for this hyperlink. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
transaction	If set to `true`, any current transaction control token will be included in the generated hyperlink, so that it will pass an `isTokenValid()` test in the receiving Action. [RT Expr]
useLocalEncoding	If set to `true`, LocalCharacterEncoding will be used, that is, the characterEncoding set to the HttpServletResponse, as prefered character encoding rather than UTF-8, when URLEncoding is done on parameters of the URL. [RT Expr]

messages - Conditionally display a set of accumulated messages.

Displays a set of messages prepared by a business logic component and stored as an ActionMessages object, ActionErrors object, a String, or a String array in any scope. If such a bean is not found, nothing will be rendered.

In order to use this tag successfully, you must have defined an application scope MessageResources bean under the default attribute name.

Attribute Name	Description
id	The name of a page scope JSP bean that will contain the current element of the collection of messages on each iteration, if it is not `null`. [Required]
bundle	The servlet context attribute key for the MessageResources instance to use. If not specified, defaults to the application resources configured for our action servlet. [RT Expr]
locale	The session attribute key for the Locale used to select messages to be displayed. If not specified, defaults to the Struts standard value. [RT Expr]
name	Name of the bean in any scope under which our messages have been stored. If not present, the name specified by the `Globals.ERROR_KEY` constant string will be used. [RT Expr]
property	Name of the property for which messages should be displayed. If not specified, all messages (regardless of property) are displayed. [RT Expr]
header	This value is an optional message resource key that will be printed before the iteration of messages begins. [RT Expr]
footer	This value is an optional message resource key that will be printed after the iteration of messages has finished. [RT Expr]
message	By default the tag will retrieve the bean it will iterate over from the `Globals.ERROR_KEY` constant string, but if this attribute is set to 'true' the bean will be retrieved from the `Globals.MESSAGE_KEY` constant string. Also if this is set to 'true', any value assigned to the name attribute will be ignored. [RT Expr]

multibox - Render A Checkbox Input Field

Renders an HTML <input> element of type checkbox, whose "checked" status is initialized based on whether the specified value matches one of the elements of the underlying property's array of current values. This element is useful when you have large numbers of checkboxes, and prefer to combine the values into a single array-valued property instead of multiple boolean properties. This tag is only valid when nested inside a form tag body.

WARNING: In order to correctly recognize cases where none of the associated checkboxes are selected, the ActionForm bean associated with this form must include a statement setting the corresponding array to zero length in the reset() method.

The value to be returned to the server, if this checkbox is selected, must be defined by one of the following methods:

Specify a value attribute, whose contents will be used literally as the value to be returned.
Specify no value attribute, and the nested body content of this tag will be used as the value to be returned.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
name	The attribute name of the bean whose properties are consulted when rendering the current value of this input field. If not specified, the bean associated with the form tag we are nested within is utilized. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of the request parameter that will be included with this submission, set to the specified value. [Required] [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	The value to be transmitted if this checkbox is checked when the form is submitted. [RT Expr]

option - Render A Select Option

Render an HTML <option> element, representing one of the choices for an enclosing <select> element. The text displayed to the user comes from either the body of this tag, or from a message string looked up based on the bundle, locale, and key attributes.

If the value of the corresponding bean property matches the specified value, this option will be marked selected. This tag is only valid when nested inside a <html:select> tag body.

Attribute Name	Description
bundle	The servlet context attributes key for the MessageResources instance to use. If not specified, defaults to the application resources configured for our action servlet. [RT Expr]
disabled	Set to `true` if this option should be disabled. [RT Expr]
key	If specified, defines the message key to be looked up in the resource bundle specified by `bundle` for the text displayed to the user for this option. If not specified, the text to be displayed is taken from the body content of this tag. [RT Expr]
locale	The session attributes key for the Locale instance to use for looking up the message specified by the `key` attribute. If not specified, uses the standard Struts session attribute name. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
value	Value to be submitted for this field if this option is selected by the user. [Required] [RT Expr]

options - Render a Collection of Select Options

Renders a set of HTML <option> elements, representing possible choices for a <select> element. This tag can be used multiple times within a single <html:select> element, either in conjunction with or instead of one or more <html:option> or <html:optionsCollection> elements.

This tag operates in one of two major modes, depending on whether or not the collection attribute is specified. If the collection attribute is included, the following rules apply:

The collection attribute is interpreted as the name of a JSP bean, in some scope, that itself represents a collection of individual beans, one per option value to be rendered.
The property attribute is interpreted as the name of a property of the individual beans included in the collection, and is used to retrieve the value that will be returned to the server if this option is selected.
The labelProperty attribute is interpreted as the name of a property of the individual beans included in the collection, and is used to retrieve the label that will be displayed to the user for this option. If the labelProperty attribute is not specified, the property named by the property attribute will be used to select both the value returned to the server and the label displayed to the user for this option.

If the collection attribute is not specified, the rules described in the remainder of this section apply.

The collection of values actually selected depends on the presence or absence of the name and property attributes. The following combinations are allowed:

Only name is specified - The value of this attribute is the name of a JSP bean in some scope that is the collection.
Only property is specified - The value of this attribute is the name of a property of the ActionForm bean associated with our form, which will return the collection.
Both name and property are specified - The value of the name attribute identifies a JSP bean in some scope. The value of the property attribute is the name of some property of that bean which will return the collection.

The collection of labels displayed to the user can be the same as the option values themselves, or can be different, depending on the presence or absence of the labelName and labelProperty attributes. If this feature is used, the collection of labels must contain the same number of elements as the corresponding collection of values. The following combinations are allowed:

Neither labelName nor labelProperty is specified - The labels will be the same as the option values themselves.
Only labelName is specified - The value of this attribute is the name of a JSP bean in some scope that is the collection.
Only labelProperty is specified - The value of this attribute is the name of a property of the ActionForm bean associated with our form, which will return the collection.
Both labelName and labelProperty are specified - The value of the labelName attribute identifies a JSP bean in some scope. The value of the labelProperty attribute is the name of some property of that bean which will return the collection.

Note that this tag does not support a styleId attribute, as it would have to apply the value to all the option elements created by this element, which would mean that more than one id element might have the same value, which the HTML specification says is illegal.

Attribute Name	Description
collection	Name of the JSP bean (in some scope) which is itself a Collection of other beans, each of which has properties named by the "property" and "labelProperty" attributes that are used to retrieve the value and label for each option, respectively. [RT Expr]
filter	Set to `false` if you do NOT want the option labels filtered for sensitive characters in HTML. By default, such values are filtered. [RT Expr]
labelName	Name of the JSP bean (in some scope) containing the collection of labels to be displayed to the user for these options. [RT Expr]
labelProperty	Property of the form bean, or the bean specified by the labelName attribute, that will return the collection of labels to be displayed to the user for these options. [RT Expr]
name	Name of the JSP bean (in some scope) containing the collection of values to be returned to the server for these options. If not specified, the form bean associated with our form is assumed. [RT Expr]
property	Property of the form bean, or the bean specified by the name attribute, that will return the collection of values to returned to the server for these options. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]

optionsCollection - Render a Collection of Select Options

This tag operates on a collection of beans, where each bean has a label property and a value property. The actual names of these properties can be configured using the label and value attributes of this tag.

This tag differs from the <html:options> tag in that it makes more consistent use of the name and property attributes, and allows the collection to be more easily obtained from the enclosing form bean.

Attribute Name	Description
filter	Set to `false` if you do NOT want the option labels filtered for sensitive characters in HTML. By default, such values are filtered. [RT Expr]
label	The property of the bean within the collection which represents the label to be rendered for each option. Defaults to "label". [RT Expr]
name	The attribute name of the bean whose properties are consulted when rendering the current value of this input field. If not specified, the bean associated with the form tag we are nested within is utilized. [RT Expr]
property	The property of the form bean, or the bean specified by the name attribute, that will return the collection of objects to be rendered for these options. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
value	The property of the bean within the collection which represents the value to be rendered for each option. Defaults to "value". [RT Expr]

password - Render A Password Input Field

Renders an HTML <input> element of type password, populated from the specified value or the specified property of the bean associated with our current form. This tag is only valid when nested inside a form tag body.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of logic:iterate tag. If `true` then name of the html tag will be rendered as "id[34].propertyName". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
maxlength	Maximum number of input characters to accept. [No limit] [RT Expr]
name	The attribute name of the bean whose properties are consulted when rendering the current value of this input field. If not specified, the bean associated with the form tag we are nested within is utilized. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of the request parameter that will be included with this submission, set to the specified value. [Required] [RT Expr]
readonly	Set to `true` if this input field should be read only. [RT Expr]
redisplay	Boolean flag indicating whether or not existing values will be redisplayed if they exist. Even though the redisplayed value will be shown as asterisks on the visible HTML page, the cleartext of the actual password value will be visible though the "Show Page Source" menu option of the client browser. You may wish to set this value to `false` on login pages. Defaults to `true` for consistency with all other form tags that redisplay their contents. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
size	Number of character positions to allocate. [Browser default] [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	Value of the label to be placed on this button. This value will also be submitted as the value of the specified request parameter. [Body of this tag (if any)] [RT Expr]

radio - Render A Radio Button Input Field

Renders an HTML <input> element of type radio, populated from the specified property of the bean associated with our current form. This tag is only valid when nested inside a form tag body.

If an iterator is used to render a series of radio tags, the idName attribute may be used to specify the name of the bean exposed by the iterator. In this case, the value attribute is used as the name of a property on the idName bean that returns the value of the radio tag in this iteration.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of logic:iterate tag. If `true` then name of the html tag will be rendered as "id[34].propertyName". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
name	The attribute name of the bean whose properties are consulted when rendering the current value of this input field. If not specified, the bean associated with the form tag we are nested within is utilized. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
property	The corresponding bean property for this radio tag. [Required] [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	The value of the radio tag. [Required] [RT Expr]
idName	Name of the bean (in some scope) that will return the value of the radio tag. Usually exposed by an iterator. When the idName attribute is present, the value attribute is used as the name of the property on the idName bean that will return the value of the radio tag for this iteration. Since: Struts 1.1 [RT Expr]

reset - Render A Reset Button Input Field

Renders an HTML <input> element of type reset.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of the input field that will be generated. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	Value of the label to be placed on this button. [Body of this tag (if any), or "Reset"] [RT Expr]

rewrite - Render an URI

Renders a request URI based on exactly the same rules as the link tag does, but without creating the <a> hyperlink. This value is useful when you want to generate a string constant for use by a JavaScript procedure.

Attribute Name	Description
action	Logical name of a `Action` that contains the actual content-relative URI of the destination of this transfer. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute. Additionally, you can specify a `module` prefix for linking to other modules. Since: Struts 1.2.0 [RT Expr]
module	Prefix name of a `Module` that contains the action mapping for the `Action` that is specified by the `action` attribute. You must specify an `action` attribute for this to have an effect. Note: Use "" to map to the default module. [RT Expr]
anchor	Optional anchor tag ("#xxx") to be added to the generated hyperlink. Specify this value without any "#" character. [RT Expr]
forward	Logical name of a global `ActionForward` that contains the actual content-relative URI of the destination of this transfer. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute. [RT Expr]
href	The URL to which this hyperlink will transfer control if activated. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute. [RT Expr]
name	The name of a JSP bean that contains a `Map` representing the query parameters (if `property` is not specified), or a JSP bean whose property getter is called to return a `Map` (if `property` is specified). [RT Expr]
page	The module-relative path (beginning with a "/" character) to which this hyperlink will transfer control if activated. This hyperlink may be dynamically modified by the inclusion of query parameters, as described in the tag description. You must specify exactly one of the `action` attribute, the `forward` attribute, the `href` attribute, or the `page` attribute. [RT Expr]
paramId	The name of the request parameter that will be dynamically added to the generated hyperlink. The corresponding value is defined by the `paramName` and (optional) `paramProperty` attributes, optionally scoped by the `paramScope` attribute [RT Expr]
paramName	The name of a JSP bean that is a String containing the value for the request parameter named by `paramId` (if `paramProperty` is not specified), or a JSP bean whose property getter is called to return a String (if `paramProperty` is specified). The JSP bean is constrained to the bean scope specified by the `paramScope` property, if it is specified. [RT Expr]
paramProperty	The name of a property of the bean specified by the `paramName` attribute, whose return value must be a String containing the value of the request parameter (named by the `paramId` attribute) that will be dynamically added to this hyperlink. [RT Expr]
paramScope	The scope within which to search for the bean specified by the `paramName` attribute. If not specified, all scopes are searched. [RT Expr]
property	The name of a property of the bean specified by the `name` attribute, whose return value must be a `java.util.Map` containing the query parameters to be added to the hyperlink. You must specify the `name` attribute if you specify this attribute. [RT Expr]
scope	The scope within which to search for the bean specified by the `name` attribute. If not specified, all scopes are searched. [RT Expr]
transaction	If set to `true`, any current transaction control token will be included in the generated hyperlink, so that it will pass an `isTokenValid()` test in the receiving Action. [RT Expr]
useLocalEncoding	If set to `true`, LocalCharacterEncoding will be used, that is, the characterEncoding set to the HttpServletResponse, as prefered character encoding rather than UTF-8, when URLEncoding is done on parameters of the URL. [RT Expr]

select - Render A Select Element

Renders an HTML <select> element, associated with a bean property specified by our attributes. This tag is only valid when nested inside a form tag body.

This tag operates in two modes, depending upon the state of the multiple attribute, which affects the data type of the associated property you should use:

multiple="true" IS NOT selected - The corresponding property should be a scalar value of any supported data type.
multiple="true" IS selected - The corresponding property should be an array of any supported data type.

WARNING: In order to correctly recognize cases where no selection at all is made, the ActionForm bean associated with this form must include a statement resetting the scalar property to a default value (if multiple is not set), or the array property to zero length (if multiple is set) in the reset() method.

Attribute Name	Description
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of logic:iterate tag. If `true` then name of the html tag will be rendered as "id[34].propertyName". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
multiple	If set to any arbitrary value, the rendered select element will support multiple selections. [RT Expr]
name	The attribute name of the bean whose properties are consulted to determine which option should be pre-selected when rendering this input field. If not specified, the bean associated with the enclosing `<html:form>` tag is utilized. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of the request parameter that will be included with this submission, set to the specified value. [Required] [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
size	The number of available options displayed at one time. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	The value to compare with for marking an option selected. [RT Expr]

submit - Render A Submit Button

Renders an HTML <input> element of type submit.

If a graphical button is needed (a button with an image), then the image tag is more appropriate.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of logic:iterate tag. If `true` then name of the html tag will be rendered as "propertyName[34]". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of the request parameter that will be included with this submission, set to the specified value. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	The value of the button label. [RT Expr]

text - Render An Input Field of Type text

Render an input button of type text. This tag is only valid when nested inside a form tag body.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of logic:iterate tag. If `true` then name of the html tag will be rendered as "id[34].propertyName". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
maxlength	Maximum number of input characters to accept. [No limit] [RT Expr]
name	The attribute name of the bean whose properties are consulted when rendering the current value of this input field. If not specified, the bean associated with the form tag we are nested within is utilized. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of this input field, and the name of the corresponding bean property if value is not specified. The corresponding bean property (if any) must be of type String. [Required] [RT Expr]
readonly	Set to `true` if this input field should be read only. [RT Expr]
size	Number of character positions to allocate. [Browser default] [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	Value to which this field should be initialized. [Use the corresponding bean property value] [RT Expr]

textarea - Render A Textarea

Render a textarea element. This tag is only valid when nested inside a form tag body.

Attribute Name	Description
accesskey	The keyboard character used to move focus immediately to this element. [RT Expr]
alt	The alternate text for this element. [RT Expr]
altKey	The message resources key of the alternate text for this element. [RT Expr]
cols	The number of columns to display. [RT Expr]
disabled	Set to `true` if this input field should be disabled. [RT Expr]
indexed	Valid only inside of logic:iterate tag. If `true` then name of the html tag will be rendered as "id[34].propertyName". Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. [RT Expr]
name	The attribute name of the bean whose properties are consulted when rendering the current value of this input field. If not specified, the bean associated with the form tag we are nested within is utilized. [RT Expr]
onblur	JavaScript event handler executed when this element loses input focus. [RT Expr]
onchange	JavaScript event handler executed when this element loses input focus and its value has changed. [RT Expr]
onclick	JavaScript event handler executed when this element receives a mouse click. [RT Expr]
ondblclick	JavaScript event handler executed when this element receives a mouse double click. [RT Expr]
onfocus	JavaScript event handler executed when this element receives input focus. [RT Expr]
onkeydown	JavaScript event handler executed when this element has focus and a key is depressed. [RT Expr]
onkeypress	JavaScript event handler executed when this element has focus and a key is depressed and released. [RT Expr]
onkeyup	JavaScript event handler executed when this element has focus and a key is released. [RT Expr]
onmousedown	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is depressed. [RT Expr]
onmousemove	JavaScript event handler executed when this element is under the mouse pointer and the pointer is moved. [RT Expr]
onmouseout	JavaScript event handler executed when this element was under the mouse pointer but the pointer was moved outside the element. [RT Expr]
onmouseover	JavaScript event handler executed when this element was not under the mouse pointer but the pointer is moved inside the element. [RT Expr]
onmouseup	JavaScript event handler executed when this element is under the mouse pointer and a mouse button is released. [RT Expr]
property	Name of this input field, and the name of the corresponding bean property if value is not specified. The corresponding bean property (if any) must be of type String. [Required] [RT Expr]
readonly	Set to `true` if this input field should be read only. [RT Expr]
rows	The number of rows to display. [RT Expr]
style	CSS styles to be applied to this HTML element. [RT Expr]
styleClass	CSS stylesheet class to be applied to this HTML element (renders a "class" attribute). [RT Expr]
styleId	Identifier to be assigned to this HTML element (renders an "id" attribute). [RT Expr]
tabindex	The tab order (ascending positive integers) for this element. [RT Expr]
title	The advisory title for this element. [RT Expr]
titleKey	The message resources key for the advisory title for this element. [RT Expr]
value	Value to which this field should be initialized. [Use the corresponding bean property value] [RT Expr]

xhtml - Render HTML tags as XHTML

Using this tag in a page tells all other html taglib tags to render themselves as XHTML 1.0. This is useful when composing pages with JSP includes or Tiles. <html:html xhtml="true"> has a similar effect. This tag has no attributes; you use it like this: <html:xhtml/>.

Note: Included pages do not inherit the rendering style of the including page. Each JSP fragment or Tile must use this tag to render as XHTML.

http://struts.apache.org/1.2.4/userGuide/struts-html.html

struts html標籤一覽

Page Construction Tags

base - Render an HTML <base> Element

button - Render A Button Input Field

cancel - Render a Cancel Button

checkbox - Render A Checkbox Input Field

errors - Conditionally display a set of accumulated error messages.

file - Render A File Select Input Field

form - Define An Input Form

frame - Render an HTML frame element

hidden - Render A Hidden Field

html - Render an HTML <html> Element

image - Render an input tag of type "image"

img - Render an HTML img tag

javascript - Render JavaScript validation based on the validation rules loaded by the ValidatorPlugIn.

link - Render an HTML anchor or hyperlink

messages - Conditionally display a set of accumulated messages.

multibox - Render A Checkbox Input Field

option - Render A Select Option

options - Render a Collection of Select Options

optionsCollection - Render a Collection of Select Options

password - Render A Password Input Field

radio - Render A Radio Button Input Field

reset - Render A Reset Button Input Field

rewrite - Render an URI

select - Render A Select Element

submit - Render A Submit Button

text - Render An Input Field of Type text

textarea - Render A Textarea

xhtml - Render HTML tags as XHTML

定製自己的struts標籤

struts taglib 源碼之--ButtonTag

對struts form bean 的一個疑問

struts常見問題——form bean的映射:Cannot retrieve mapping for action

struts html標籤一覽

Mac下配置sublime實現LaTeX

https://yachay.unat.edu.pe/blog/index.php?comment_area=format_blog&comment_component=blog&comment_co

linux以太網驅動總結