表單代碼：
<s:form action="userRegisterAction" method="post">
<s:textfield name="username" required="true" label="用戶名"></s:textfield><br/>
<s:password label="密碼" name="userpass" required="true" requiredposition="left"></s:password><br/>
<s:radio list="#{1:'男',0:'女'}" name="sex" requiredposition="left" label="性別"></s:radio><br/>
<s:select list="{'請選擇省份','江蘇','北京','上海','廣州'}" name="province" requiredposition="left" label="省份"></s:select><br/>
<s:checkboxlist list="{'C','Java','C#'}" name="goodat" label="特長"></s:checkboxlist><br/>
<s:textarea rows="5" cols="30" name="description" requiredposition="left" label="描述"></s:textarea><br/>
<s:submit value="註冊"></s:submit>
<s:reset value="清空"></s:reset>
</s:form>
userRegisterAction.java很簡單：
public class UserRegisterAction extends ActionSupport {
/**
* @author lovemu
* 用戶註冊
*/
private static final long serialVersionUID = -6342452733015612274L;
private String username; //用戶名
private String userpass; //密碼
private int sex; //性別
private String province; //省份
private String[] goodat; //特長
private String description; //描述
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getUserpass() {
return userpass;
}
public void setUserpass(String userpass) {
this.userpass = userpass;
}
public int getSex() {
return sex;
}
public void setSex(int sex) {
this.sex = sex;
}
public String getProvince() {
return province;
}
public void setProvince(String province) {
this.province = province;
}
public String[] getGoodat() {
return goodat;
}
public void setGoodat(String[] goodat) {
this.goodat = goodat;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String execute() throws Exception{
return SUCCESS;
}
}execute()方法中只有一句,用於測試
錯誤信息顯示爲：
更改表單爲：
<s:form action="userRegisterAction" method="post" theme="simple">
<label>用戶名：</label><s:textfield name="username" required="true"></s:textfield><br/>
<label>密 碼：</label><s:password label="密碼" name="userpass" required="true" requiredposition="left"></s:password><br/>
<label>性 別：</label><s:radio list="#{1:'男',0:'女'}" name="sex" requiredposition="left"></s:radio><br/>
<label>省 份：</label><s:select list="{'請選擇省份','江蘇','北京','上海','廣州'}" name="province" requiredposition="left"></s:select><br/>
<label>特 長：</label><s:checkboxlist list="{'C','Java','C#'}" name="goodat"></s:checkboxlist><br/>
<label>描 述：</label><s:textarea rows="5" cols="30" name="description" requiredposition="left"></s:textarea><br/>
<s:submit value="註冊"></s:submit>
<s:reset value="清空"></s:reset>
</s:form>
再添加一句：
<s:fielderror cssStyle="color:red"></s:fielderror>
將會使提示信息變爲：
這樣再適當修改下樣式,就可以很美觀的將錯誤提示信息集中顯示在一個地方
其中關鍵地方就是在表單中添加一句：theme="simple"
然後,就是在自己想要顯示錯誤樣式的地方，比如<div></div>裏，
添加一句：<s:fielderror cssStyle="color:red"></s:fielderror>