LoginForm代码: /* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package com.zh.struts.form; 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; /** * MyEclipse Struts * Creation date: 11-27-2013 * * XDoclet definition: * @struts.form name="loginForm" */fff public class LoginForm extends ActionForm { /* * Generated Methods */ private String userName; private String passWord; /** * Method validate * @param mapping * @param request * @return ActionErrors */ public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) { // TODO Auto-generated method stub System.out.println("valudate go on"); ActionErrors error=new ActionErrors(); if(userName==null || userName.equals("")){ error.add( "userName",new ActionMessage( "userName")); //错误信息添加到ActionErrors中 //new ActionMessage( "userName") 是在 ApplicationResources_zh_CN.properties 中取出你设置的对应的错误信息 //name value 形式中的name } return error; } /** * Method reset * @param mapping * @param request */ public String getUserName() { return userName; } public String getPassWord() { return passWord; } public void setUserName(String userName) { this.userName = userName; } public void setPassWord(String passWord) { this.passWord = passWord; } }
在com.xx.struts目录下的 ApplicationResources_zh_CN.properties文件设置: userName=erro2 sttuts-config文件设置： <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" "http://struts.apache.org/dtds/struts-config_1_3.dtd"> <struts-config> <form-beans > <form-bean name="loginForm" type="com.zh.struts.form.LoginForm" /> </form-beans> <global-exceptions /> <global-forwards /> <!-- validate="true 是设置在form中是否使用 validate方法 --> <action-mappings > <action validate="true" //注意 这里的validate是必须要设置的 这是对应你的LoginForm中 的validate方法中否执行 attribute="loginForm" input="/WEB-INF/login.jsp" name="loginForm" path="/login" scope="request" type="com.zh.struts.action.LoginAction" cancellable="true" /> </action-mappings> <message-resources parameter="com.zh.struts.ApplicationResources" /> </struts-config> jsp代码: <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <%@taglib prefix="html" uri="http://struts.apache.org/tags-html" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'login.jsp' starting page</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"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <h1> 登录</h1> <form action="/strutsTest1/login.do" method="post"> u:<input type="text" name="userName"/> <html:errors property="userName"/> <br/> //这里是你请求失败后返回的信息 property对应 LoginForm 中的error.add( "userName",new ActionMessage( "userName")); add方法第一个参数 p:<input type="password" name="passWord"/><br/> <input type="submit"/> </form> </body> </html> 有讲这个内容更好的资源 http://www.cnblogs.com/eflylab/archive/2007/01/08/614465.html