struts2从零开始（七）

知识点： struts2与sping的集成

步骤一：在web.xml中添加如下代码（首先是一个struts的过滤器，然后是spring的ContextLoaderListener监听器）

<?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">
	
	
	<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>  
       
    <welcome-file-list>  
        <welcome-file>index.jsp</welcome-file>  
    </welcome-file-list>  
       
    <listener>  
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
    </listener>  
       
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

步骤二：在src文件夹下建立一个struts.xml文件配置action 但是要将action交给spring创建，这里通过引用spring bean的一个id与之对应（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>
    
    <constant name="objectFactory" value="spring"></constant>  
    <package name="struts2tutoial" extends="struts-default" namespace="/">  
        <action name="helloWorld" class="helloWorld">  
            <result name="success">/helloWorld.jsp</result>  
        </action>  
        
    </package>  
</struts>

步骤三：在appicationContext.xml中添加如下代码：

<?xml version="1.0" encoding="UTF-8"?>
<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-2.0.xsd">

      <bean id="helloWorld" class="cn.zhuojingxinxi.web.HelloWorld"></bean> 

</beans>

步骤四：编写action（代码如下）

package cn.zhuojingxinxi.web;

import com.opensymphony.xwork2.ActionSupport;


public class HelloWorld extends ActionSupport {
	
	  public final static String MESSAGE="struts is up and running";
	
	  public String execute(){
		  System.out.println("进来了");
		  setMessage(MESSAGE);
		  return ActionSupport.SUCCESS;
	  }
	  
	  private String message;

    	public String getMessage() {
		return message;
	}

	public void setMessage(String message) {
		this.message = message;
	}
	  

}

步骤五：jsp页面代码：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%
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>
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
  </head>
  
  <body>
         <h1>helloWorld jsp</h1>
         
         <h2><s:property value="message" /></h2>  
  
  </body>
</html>

源码下载请点这里：

struts2从零开始（七）

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