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Struts 1.x 表单的Form验证

2013-10-16 17:53 295 查看

1 编写JSP页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

    <title>注册信息（简单验证）</title>

<meta http-equiv="pragma" content="no-cache">

<meta http-equiv="cache-control" content="no-cache">

<meta http-equiv="expires" content="0">

<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

<meta http-equiv="description" content="This is my page">



<style type="text/css">

  .text{

   height: 20px;

   width: 120px;

  }

</style>

</head>

<body>

<html:messages id="errorUser" property="errorUser"></html:messages>

    <html:form action="simpleValidation">

    <table width="100%">

      <tr>

       <td align="right" width="45%">用户名：</td>

       <td width="55%"><html:text property="user" styleClass="text"></html:text><font color="red"><html:errors property="errorUser"></html:errors></font></td>

      </tr>

      <tr>

       <td align="right" width="45%">登陆密码：</td>

       <td width="55%"><html:text property="password" styleClass="text"></html:text><font color="red"><html:errors property="errorPassword"></html:errors></font></td>

      </tr>

      <tr>

       <td align="right" width="45%">重复登陆密码：</td>

       <td width="55%"><html:text property="password1" styleClass="text"></html:text><font color="red"><html:errors property="errorPassword1"></html:errors></font></td>

      </tr>

      <tr>

       <td align="right" width="45%">电子邮件：</td>

       <td width="55%"><html:text property="email" styleClass="text"></html:text><font color="red"><html:errors property="errorEmail"></html:errors></font></td>

      </tr>

      <tr>

       <td align="right"><br/>${requestScope.success}</td>

       <td align="left"><br/><html:submit value="提交"></html:submit></td>

      </tr>

    </table>

    </html:form>

</body>

</html>

2 编写Form

package com.du.struts;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts.action.ActionErrors;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionMapping;

import org.apache.struts.action.ActionMessage;

public class SimpleValidationForm extends ActionForm{

/**

   *

   */

private static final long serialVersionUID = 1L;

private String user;

private String password;

private String password1;

private String email;

public String getUser() {

    return user;

}

public void setUser(String user) {

    this.user = user;

}

public String getPassword() {

    return password;

}

public void setPassword(String password) {

    this.password = password;

}

public String getPassword1() {

    return password1;

}

public void setPassword1(String password1) {

    this.password1 = password1;

}

public String getEmail() {

    return email;

}

public void setEmail(String email) {

    this.email = email;

}

@Override

public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {

    ActionErrors ae = new ActionErrors();



    if(this.user == null || "".equals(this.user)){

      ActionMessage am = new ActionMessage("error.user.blank");

      ae.add("errorUser", am);

      ActionMessage am1 = new ActionMessage("error.password.blank");

      ae.add("errorUser", am1);

    }

    return ae;

}

}

3 编写Action

package com.du.struts;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

public class SimpleAction extends Action {

@Override

public ActionForward execute(ActionMapping mapping, ActionForm form,

      HttpServletRequest request, HttpServletResponse response)

      throws Exception {

    request.setAttribute("success", "提交成功");

    return mapping.findForward("simple");

}

}

4 编写struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">

<struts-config>

<data-sources />

<form-beans >

<form-bean name="simpleValidationForm" type="com.du.struts.SimpleValidationForm"></form-bean>

</form-beans>

<global-exceptions />

<global-forwards />

<action-mappings>

<action path="/simpleValidation" name="simpleValidationForm" type="com.du.struts.SimpleAction" input="/index.jsp">

  <forward name="simple" path="/index.jsp"></forward>

</action>

</action-mappings>

<message-resources parameter="com.du.struts.ApplicationResources" />

</struts-config>

5 编写ApplicationResource.property文件

error.user.blank = User can't be null.

error.password.blank = Password can't be null.

error.password1.confirmation = Password doesn't match confirmation.

error.email.blank = Email can't be null.

error.email.invalid =It is not a valid email address.

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