Apache Commons Validator

•  
  • Add an onsubmit attribute to your h:form tag that calls the JavaScript validation function generated by s:validatorScript.
  • Add Commons validators to JSF input components with s:commonsValidator and, optionally, s:validatorVar.
  • Add an s:validatorScript tag at the end of the h:form tag's body.

Apache Commons Validator對JSF頁面驗證提供了良好的支持和補充，以下爲使用小結：

 

使用範例

 <%@ taglib uri="http://shale.apache.org/core" prefix="s" %> ... <h:form οnsubmit="return validateForm(this);"> <h:inputText id="creditCardNumber" size="16" value="#{userContext.creditCardNumber}"> <s:commonsValidator type="required" arg="#{msgs.creditCardNumberPrompt}" server="true" client="true"/> <s:commonsValidator type="mask" arg="#{msgs.creditCardNumberPrompt}" server="true" client="true"> <s:validatorVar name="mask" value="[4-6].*"/> </s:commonsValidator> <s:commonsValidator type="creditCard" arg="#{msgs.creditCardNumberPrompt}" server="true"/> </h:inputText> <h:message for="creditCardNumber" styleClass="errors"/> <s:validatorScript functionName="validateForm"/> </h:form> ...

Services Provided

Shale provides three JSP tags that let you use the Commons Validator: s:commonsValidator, s:validatorVar, and s:validatorScript. The first two lets you attach a commons validator to a JSF input component and the third generates JavaScript validation code for validating each JSF component that has one or more Commons validators in a particular form. You can attach as many Commons validators to a single JSF input component as you wish.

 

commonsValidator Attributes

Name	Description	Type
arg	A value that's plugged into the message	String
client	If true, validation is performed on the client	String
datePatternStrict	A date pattern using syntax defined in java.text.SimpleDateFormat	String
mask	A regular expression to which the value must conform	String
max	The maximum valid value	String
maxlength	The maximum valid length of the field	String
message	A message displayed when validation fails	String
min	The minimum valid value	String
minlength	The minimum valid length of the field	String
server	If true, validation is performed on the server	String
type	The type of validator associated with this tag	String

 

 

type支持類型

 

Minlength  maxlength  creditCard   required    integer  intRange  

 

long  float  floatRange  double  doubleRange  Date  email 

 

mask  Byte  short  url

 

includeJavaScriptUtilities 

 

 

 文摘來源： 

1:http://shale.apache.org/shale-core/tagreference.html#commonsValidator

 

2:http://shale.apache.org/1.0.4/shale-validator/index.html