Struts2练习

首先从下载的Struts2中apps文件夹下选中需要联系的示例，拷贝jar包到eclipse项目WEB-INF/lib目录下，然后构建路径

二、在web.xml添加过滤器 并复制配置文件  struts.xml  到src目录下，

<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>Test24</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>
  <!-- struts2的过滤器 -->
   <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>

 

 

三、根据需要需改struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
    "http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>

<!-- 修改默认配置 -->

<constant name="struts.action.extension" value="do,action,,"></constant>

<!-- 对功能模块分组管理 -->

    <package name="index" extends="struts-default" >
    

    <action name="login" class="com.hanqi.action.TestAction" method="checkLogin">
    <result type="dispatcher">/WEB-INF/pages/main.jsp</result>
    <!--  <result name ="fail" type="redirect">http"//www.baidu.com</result>
    -->
    <!--  <result name ="fail" type="redirectAction"> 
    
    <param name="actionName">test1</param>
    </result>-->
    <result name ="fail" type="chain"> 
    
    <param name="actionName">test2</param>
    <param name="method">chain</param>
    </result>
    </action>
    <!-- 被重定向到的action -->
    <action name="test1">
    <result>/WEB-INF/pages/test1.jsp</result>
    
    </action>
     <action name="test2">
    <result>/WEB-INF/pages/test2.jsp</result>
    
    </action>
    
    </package>

</struts>

四、首页

<%@ 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>Insert title here</title>
</head>
<body>

<form action="login" method="post">
用户：<input type="text" name="userID">
<br>
<br>
密码：<input type="password" name="password">
<br>
<br>
<input type="submit" value="登录">




</form>
</body>
</html>

五、Java类判断条件

package com.hanqi.action;

public class TestAction {
    
    private String userID;
    private String password;
    public String getUserID() {
        return userID;
    }
    public void setUserID(String userID) {
        this.userID = userID;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }

    public String checkLogin()
    {
        String rtn = "fail";
        if(userID!=null&&password!=null&&userID.equals("admin")&&password.equals("123456"))
        {
            rtn="success";
        }
        
        
        return rtn;        
    }
    public String execute()
    {
        return "success";
    }
    public String chain()
    {
        return "success";
        
    }
}

六、在WEB-INF目录下建立pages文件夹，然后新建几个jsp文件，实现Struts2的过滤跳转功能

 

现在通过Struts2框架基本已经实现了一个基本的过滤跳转功能，结果如下：

 

posted @ 2016-11-15 09:03  wangguoning  阅读(329)  评论(0)  编辑  收藏  举报