eclipse开发struts2程序

在eclipse下，用sturts2实现登录功能

代码结构如下：

web.xml代码：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
	id="WebApp_ID" version="3.0">
	<display-name>struts</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>

	<filter>
		<filter-name>struts2</filter-name>
		<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
	</filter>

	<filter-mapping>
		<filter-name>struts2</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
</web-app>

struts.xml代码：

<?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>
	<constant name="struts.devMode" value="true" />
	<package name="default" namespace="/" extends="struts-default">
		<action name="*Action" class="com.action.struts.LoginAction" method="{1}">
			<result name="success">/main.jsp</result>
			<result name="login">/login.jsp</result>
		</action>
	</package>
</struts>

LoginAction代码：

package com.action.struts;

import java.util.Map;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class LoginAction  extends ActionSupport{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	private String username ;
	
	private String password ;
	
    public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public String login(){
    	System.out.println("username :"+username);
    	System.out.println("password :"+password);
    	System.out.println("login method invoke");
    	if("yangjianzhou".equals(username)&&"123456".equals(password)){
			Map session = ActionContext.getContext().getSession();
    		session.put("username", username);
    		return "success";
    	}
    	return "login";
	}
}

<%@ page language="java" contentType="text/html; charset=utf-8"
	pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>login</title>
</head>
<body>
	<div style="margin-top: 50px;" align="center">登录界面</div>
	<form action="loginAction" method="post">
		<table align="center" style="margin-top: 20px;">
			<tr>
				<td>用户名：</td>
				<td><input type="text" name="username"></td>
			</tr>
			<tr>
				<td>密 码：</td>
				<td><input type="password" name="password"></td>
			</tr>
			<tr>
				<td></td>
				<td><input type="submit" value="提交"></td>
			</tr>
		</table>
	</form>
</body>
</html>

main.jsp代码：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>main</title>
</head>
<body>
   <div style="margin-top: 50px;" align="center">
   Welcome to home page : <%=(String)session.getAttribute("username") %></div>
</body>
</html>

运行界面：

eclipse开发struts2程序

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