spring+struts的集成(第一种集成方案)

spring+struts的集成(第一种集成方案，不常用，因为具有代码侵入性)
原理：在Action中取得BeanFactory对象，然后通过BeanFactory获取业务逻辑对象

1、spring和struts依赖库配置
* 配置struts
--拷贝struts类库和jstl类库
--修改web.xml文件来配置ActionServlet
--提供struts-config.xml文件
--提供国际化资源文件
* 配置spring
--拷贝spring类库
--提供spring配置文件

2、在struts的Action中调用如下代码取得BeanFactory
BeanFactory factory = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getSession().getServletContext());

3、通过BeanFactory取得业务对象，调用业务逻辑方法

配置web.xml文件：

<?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">  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>    <servlet>    <servlet-name>action</servlet-name>    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>    <init-param>      <param-name>config</param-name>      <param-value>/WEB-INF/struts-config.xml</param-value>    </init-param>    <init-param>      <param-name>debug</param-name>      <param-value>2</param-value>    </init-param>    <init-param>      <param-name>detail</param-name>      <param-value>2</param-value>    </init-param>    <load-on-startup>2</load-on-startup>  </servlet>  <!-- Standard Action Servlet Mapping -->  <servlet-mapping>    <servlet-name>action</servlet-name>    <url-pattern>*.do</url-pattern>  </servlet-mapping>    <!--这里是这种集成需要添加的配置-->   <context-param>  <param-name>contextConfigLocation</param-name>  <param-value>classpath*:applicationContext-*.xml</param-value>  </context-param>   <listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener>   </web-app>

在Action 中可以如下使用：

public class LoginAction extends Action {@Overridepublic ActionForward execute(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)throws Exception {LoginActionForm laf = (LoginActionForm)form;//UserManager userManager = new UserManagerImpl();//userManager.login(laf.getUsername(), laf.getPassword());//BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext-beans.xml");//UserManager userManager = (UserManager)factory.getBean("userManager");//userManager.login(laf.getUsername(), laf.getPassword());BeanFactory factory = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getSession().getServletContext());//ApplicationContext pc = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getSession().getServletContext());UserManager userManager = (UserManager)factory.getBean("userManager");userManager.login(laf.getUsername(), laf.getPassword());return mapping.findForward("success");}}