struts整合spring

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一：struts整合spring不单单需要各自的jar包，还需要struts-spring-plugin-2.1.6.jar将struts与spring建立联系

二：web.xml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"><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><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener></web-app>

三.有一个loginaction，struts和spring配置文件怎么写

LoginAction.java

package com.test.action;import com.opensymphony.xwork2.ActionSupport;import com.test.service.LoginService;public class LoginAction extends ActionSupport{private String username;private String password;private LoginService loginService;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 LoginService getLoginService(){return loginService;}public void setLoginService(LoginService loginService){this.loginService = loginService;}@Overridepublic String execute() throws Exception{if(loginService.isLogin(username,password)){return SUCCESS;}else{return ERROR;}}}

struts.xml

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

struts.xml中action的class不用真实的，指向spring配置文件的id

SpringContext.xml

<?xml version="1.0" encoding="UTF-8"?><beansxmlns="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-2.5.xsd"><bean id="loginService" class="com.test.service.impl.LoginServiceImpl" scope="singleton"></bean><!-- 对于action来说，一定要将其scope配置成prototype或是request --><bean id="loginAction" class="com.test.action.LoginAction" scope="prototype"><property name="loginService" ref="loginService"></property></bean></beans>

对于spring配置文件的bean属性，其scope属性有以下几个值

1.singleton 单实例适用：所有无状态的对象

2.prototype 表示每次从容器中取出bean时，都会生成一个新实例。相当与new出来一个新对象

3.request 该属性基于web,表示每次接受一个新的请求时，都会生成一个新实例。在这个情况下，request与prototype 一样

4.session 表示在每个session中该对象只有一个

5.globalSession