struts2登录验证小程序-CFANZ编程社区

1.必备的struts2-blank.war下的lib目录下的所有驱动包，放入项目下的lib目录中。

2.新建一个UserAction类，代码如下:

package com.eduask;
 import com.opensymphony.xwork2.ActionSupport;
 //创建一个UserAction继承ActionSupport类;
 public class UserAction extends ActionSupport{
 private String userName;
 private String userPassWord;
 public String getUserName() {
 return userName;
 }
 public void setUserName(String userName) {
 this.userName = userName;
 }
 public String getUserPassWord() {
 return userPassWord;
 }
 public void setUserPassWord(String userPassWord) {
 this.userPassWord = userPassWord;
 }
 @Override
 public String execute() throws Exception {
 if("tom".equals(userName)&&"123456".equals(userPassWord))
 return "success";
 else
 return "error";
 
 }
 }

3．在src目录下新建一个struts.xml的配置文件，代码如下:

<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE struts PUBLIC
 "-Apache Software Foundation//DTD Struts Configuration 2.0//EN"
 "http://struts.apache.org/dtds/struts-2.0.dtd">
 <struts>
 <!--定义包管理配置的action继承struts-default.xml中的配置  -->
 <!-- form标签中action的地址 -->
 <package name="actions" extends="struts-default">
 <action name="login" class="com.eduask.UserAction">
 <!--成功页面-->
 <result name="success">/success.jsp</result>
 <!--失败页面-->
 <result name="error">/error.jsp</result>
 </action>
 </package>
 </struts>

4.在webRoot目录下新建三个jsp文件，分别是success.jsp、error.jsp、index.jsp

5.success.jsp代码如下：

<%@ page language="java" contentType="text/html; charset=utf-8"
 pageEncoding="utf-8"%>
 <%
 String path=request.getContextPath();
 String basePath=request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort();
 %>
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
 <base href="<%=basePath%>">
 <title>my success jsp page</title>
 </head>
 <body>
 <h1>
 欢迎<%=request.getParameter("userName") %>登录<br>
 </h1>
 </body>
 </html>
 6.error.jsp代码如下:
 <%@ page language="java" contentType="text/html; charset=utf-8"
 pageEncoding="utf-8"%>
 <%
 String path=request.getContextPath();
 String basePath=request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 %>
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
 <base href="<%=basePath%>">
 <title>my error jsp page</title>
 </head>
 <body>
 <h1>
 用户名或密码错误
 </h1>
 </body>
 </html>

7.index.jsp代码如下:

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 <%
 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 'index.jsp' starting page</title>
 </head>
 
 <body>
 <form action="login.action" method="post">
 用户名 <input name="userName" type="text"><br>
 密码 <input name="userPassWord" type="password"><br>
 <input type=submit name=subm value="提交">
 <input type=reset name=reset value="取消">
 </form>
 </body>
 </html>

8.最后修改web.xml的配置文件,修改结果为:

<?xml version="1.0" encoding="UTF-8"?>
 <web-app version="2.5"
 xmlns="http://java.sun.com/xml/ns/javaee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
 <display-name></display-name>
 <welcome-file-list>
 <welcome-file>index.jsp</welcome-file>
 </welcome-file-list>
 <!--过滤器-->
 <filter>
 <filter-name>struts2</filter-name>
 <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
 <!--org.apache.struts2.dispatcher.FilteDispatcher  -->
 </filter>
 <filter-mapping>
 <filter-name>struts2</filter-name>
 <url-pattern>/*</url-pattern>
 </filter-mapping>
 </web-app>