Spring进阶之Spring和struts的整合

一）使用springWeb模块，将spring集成struts2【register.jsp->UserAction->message.jsp】
   （1）整合原理
       （A）struts2的Action不再由struts2框架产生，反而由spring框架代为产生. 
       （B）当web服务器启动时，由spring负责产生
       （C）每次请求后，struts2框架从spring容器中找到对应的bean来处理业务
       （D）因为struts2的action是一个原型的，所以spring容器在创建action时，一定要配置成scopt="prototype"


   （2）集成步骤
（A）添加struts2、spring、struts2-spring-plugin-2.3.1.1.jar到WEB-INF/lib/目录下
        （B）配置struts.xml文件
            <struts>
    <package name="struts_spring" extends="struts-default" namespace="/">
    <action name="register" class="userAction" method="execute">
    <result name="success" type="dispatcher">/message.jsp</result>
    </action>
    </package>
    </struts>

        （C）配置spring.xml文件 
       <bean id="userAction" class="com.spring_struts.demo.UserAction" scope="prototype">
</bean>


        （D）配置web.xml文件，目的是在部署web应用时，启动spring容器
    <!-- 配置struts2过滤器 -->
  <filter>
  <filter-name>struts2_filter</filter-name>
  <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter>
  <filter-mapping>
  <filter-name>struts2_filter</filter-name>
  <url-pattern>/*</url-pattern>
  </filter-mapping>
  <!-- 配置springWeb模块的启动器，加载指定目录下的applicationcontext。xml文件呢 -->
  <listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <context-param>
  <!-- 加载指定目录下一个或多个applicationcontext.xml文件 -->
<param-name>contextConfigLocation</param-name>
<!-- 以下路径是部署到Web服务器上的路径，而不是IDE工具中的路径 -->
<param-value>/WEB-INF/classes/com/spring_struts/demo/applicationContext.xml</param-value>

  </context-param>

接下来用代码实例来介绍：

首先贴出要导包的目录截图：

写一个实体类User：

package com.spring_struts.demo;public class User {private String name;private String password;public User() {}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}}

接着写UserAction：

package com.spring_struts.demo;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;public class UserAction extends ActionSupport {private User user;public User getUser() {return user;}public void setUser(User user) {this.user = user;}@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubActionContext.getContext().put("user", user);return "success";}}

接着写配置文件applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"><bean id="userAction" class="com.spring_struts.demo.UserAction" scope="prototype"></bean></beans>

接着在src目录下写struts.xml配置：

<?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>    <package name="struts_spring" extends="struts-default" namespace="/">    <action name="register" class="userAction" method="execute">    <result name="success" type="dispatcher">/message.jsp</result>    </action>    </package>    </struts>

接着在web.xml的配置：

<?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">  <display-name></display-name>  <!-- 配置struts2过滤器 -->  <filter>  <filter-name>struts2_filter</filter-name>  <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>  </filter>  <filter-mapping>  <filter-name>struts2_filter</filter-name>  <url-pattern>/*</url-pattern>  </filter-mapping>  <!-- 配置springWeb模块的启动器，加载指定目录下的applicationcontext。xml文件呢 -->  <listener>  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <context-param>  <!-- 加载指定目录下一个或多个applicationcontext.xml文件 --><param-name>contextConfigLocation</param-name><!-- 以下路径是部署到Web服务器上的路径，而不是IDE工具中的路径 --><param-value>/WEB-INF/classes/com/spring_struts/demo/applicationContext.xml</param-value>  </context-param>  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list></web-app>

注册页面：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%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>    <title>注册页面</title>  </head>  <body>  <form action="${pageContext.request.contextPath }/register" method="post">  <table align="center">  <tr>  <td>姓名</td>  <td><input type="text" name="user.name"></td>  </tr>  <tr>  <td>密码</td>  <td><input type="password" name="user.password"></td>  </tr>  <tr >  <td colspan="2">  <input type="submit" value="提交">  </td>  </tr>  </table>  </form>  </body></html>

消息页面：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%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>    <title>消息页面</title>  </head>  <body>    我的名字：${user.name }    我的密码：${user.password }  </body></html>

运行结果：