《struts2权威指南》学习笔记之struts2整合Spring

整合Spring，换句话说，也就是让spring的IOC功能为我们的struts action注入逻辑组件

首先需要加载struts2-spring-plugin-2.0.6.jar这个包，这个是关键，他可以帮我们把struts2和spring仅仅整合在一起

 

首先是web.xml

 

<? xml version="1.0" encoding="utf-8" ?>
< web-app  version ="2.4"  xmlns ="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"  
    xsi:schemaLocation ="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >

     < context-param >
       < param-name > contextConfigLocation </ param-name >
       < param-value > /WEB-INF/bean.xml </ param-value >
     </ context-param >

     < listener >
       < listener-class > org.springframework.web.context.ContextLoaderListener </ listener-class >
     </ listener >
     < filter >
         < filter-name > struts2 </ filter-name >
         < filter-class > org.apache.struts2.dispatcher.FilterDispatcher </ filter-class >
     </ filter >


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

     < filter >
         < filter-name > aaa </ filter-name >
         < filter-class > org.apache.struts2.dispatcher.ActionContextCleanUp  </ filter-class >
     </ filter >


     < filter-mapping >
         < filter-name > aaa </ filter-name >
         < url-pattern > /* </ url-pattern >
     </ filter-mapping >


</ web-app >

 

其次是struts2.xml

 

<? xml version="1.0" encoding="GBK" ?>
<! DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd" >
< struts >

     < package  name ="lee"   extends ="struts-default" >
       < action  name ="login"  class ="loginAction" >
         < result  name ="error" > /error.jsp </ result >
         < result  name ="success" > /welcome.jsp </ result >
       </ action >
     </ package >

</ struts >

 

最关键的是bean.xml，完成为struts2 action的注入

 

<? xml version="1.0" encoding="GBK" ?>
<!--  定义Spring配置文件的根元素，并指定Schema信息  -->
< beans  xmlns ="http://www.springframework.org/schema/beans"
       xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation ="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd" >

   < bean  id ="myService"  class ="lee.MyServiceImpl" />
   < bean  id ="loginAction"  class ="lee.LoginAction"  scope ="prototype" >
     < property  name ="ms"  ref ="myService" />
   </ bean >
</ beans >

 

LoginAction

 

package  lee;

import  com.opensymphony.xwork2.Action;

public   class  LoginAction  implements  Action  ... {

    private String username;
    private String password;
    private String tip;
    private MyService ms;
    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 getTip() ...{
        return tip;
    }

    public void setTip(String tip) ...{
        this.tip = tip;
    }

    public String execute() throws Exception ...{
        if(ms.valid(this.getUsername(), this.getPassword()))...{
            return SUCCESS;
        }
        else...{
            return ERROR;
        }
    }

    public MyService getMs() ...{
        return ms;
    }

    public void setMs(MyService ms) ...{
        this.ms = ms;
    }

}

 

MyService及实现

 

package  lee;


public   interface  MyService 
... {
    boolean valid(String username , String pass);
}


package  lee;

public   class  MyServiceImpl  implements  MyService
... {
    public boolean valid(String username , String pass)
    ...{   System.out.println(username);
        if (username.equals("高") && pass.equals("1234") )
        ...{
            return true;
        }
        return false;
    }
}

 

struts.properties

struts.i18n.encoding=gb2312

 

login.jsp

　　 <%@ page contentType="text/html; charset=gb2312"%>

<html>
<head>
<title>登录页面</title>
</head>
<body>
<form action="login.action" method="post">
    <table align="center">
    <caption><h3>用户登录</h3></caption>
        <tr>
            <td>用户名：<input type="text" name="username"/></td>
        </tr>
        <tr>
            <td>密&nbsp;&nbsp;码：<input type="text" name="password"/></td>
        </tr>
        <tr align="center">
            <td colspan="2"><input type="submit" value="登录"/><input type="reset" value="重填" /></td>
        </tr>
    </table>
</form>
</body>
</html>

 

welcome.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<html>
    <head>
        <title>成功页面</title>
    </head>
    <body>
        您已经登录!
        <s:property value="username"/>
  <s:property value="tip"/>
    </body>
</html>

 

error.jsp

<%@ page language="java" contentType="text/html; charset=GBK"%>
<html>
    <head>
        <title>错误页面</title>
    </head>
    <body>
        您不能登录!
    </body>
</html>