Struts2登录示例-优快云博客

我认为学习一门新技术最快的方法就是，用这门技术做一个简单的完整的实例。下面是我学习Struts2开始时写的一个登陆程序，供学习struts2的新手看到一下。
下面的截图是该应用用到的jar包：
[img]http://dl.iteye.com/upload/attachment/176560/3861abe2-3a8e-3b6f-a0c1-d15d28d4c7f4.jpg[/img]
web.xml的配置：


<?xml version="1.0" encoding="UTF-8"?>
<web-app 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"
           version="2.5">
    <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>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

struts.xml的配置：


<?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>
    <package name="strutsTest" extends="struts-default" >
        <action name="login" class="cn.edu.hist.action.LoginAction">
            <result name="success" >/success.jsp</result>
            <result name="error">/error.jsp</result>
        </action>
    </package>
</struts>

LoginAction.java代码如下：


package cn.edu.hist.action;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.Action;

/**
 * Created by IntelliJ IDEA.
 * User: jiaxy
 * Date: 2009-11-27
 * Time: 11:38:55
 * DESC:
 */
public class LoginAction implements Action {
    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 execute() throws Exception {
        if(getUsername().equals("guojia")&& getPassword().equals("123")){
            ActionContext.getContext().getSession().put("username",getUsername());
            return "success";
        }else{
            return "error";
        }
    }
}

下面是jsp页面：
index.jsp页面内容：


<%--
  Created by IntelliJ IDEA.
  User: jiaxy
  Date: 2009-11-27
  Time: 11:32:45
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head><title>测试</title></head>
  <body>
    <form action="login" method="post">
        用户名：<input type="text" size="12" name="username"/><br>
        密   码：<input type="password" size="12" name="password"/><br>
        <input type="submit" value="提交"/>
    </form>
  </body>
</html>

success.jsp页面的内容：


<%--
  Created by IntelliJ IDEA.
  User: jiaxy
  Date: 2009-11-27
  Time: 14:10:06
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title>登陆页面</title></head>

<body>
欢迎，${sessionScope.username},你已成功登陆！

</body>
</html>

strust2快速入门