三个处理器映射器+二个处理器适配器

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三个处理器映射器

1 BeanNameUrlHandlerMapping

<!-- 配置处理器映射器 1--> <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>

2SimpleUrlHandlerMapping

<!-- 配置处理器映射器2SimpleUrlHandlerMapping 使用自定义bean的id匹配-->  <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">  <property name="mappings">  <props>  <prop key="/ss.do">userController</prop>  <prop key="/abc.do">userController</prop>  <prop key="/yyy.do">httpId</prop>  </props>  </property>  </bean>

3ControllerClassNameHandlerMapping

<!-- 配置处理器映射器3ControllerClassNameHandlerMapping:直接使用类名访问，类名.do 但是类名首字母小写 -->  <bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"></bean>

4自定义bean

 <!-- 配置自定义bean -->                        <bean id="userController" name="/hello.do" class="cn.itcast.controller.UserController"></bean>

二个处理器适配器

1SimpleControllerHandlerAdapter

<!-- 配置处理器适配器1 负责执行UserController  实现接口 Controller--><bean  class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"></bean>

自定义类UserController 实现接口 Controller

package cn.itcast.controller;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.mvc.Controller;public class UserController implements Controller{@Overridepublic ModelAndView handleRequest(HttpServletRequest request,HttpServletResponse response) throws Exception {ModelAndView mvAndView = new ModelAndView() ;mvAndView.addObject("hello", "I love too yeah one");////mvAndView.setViewName("/WEB-INF/jsps/index.jsp");mvAndView.setViewName("index");return mvAndView;}}

2HttpRequestHandlerAdapter

 <!-- 配置处理器适配器2 HttpRequestHandlerAdapter:   用来处理实现接口HttpRequestHandler后端控制类Controller -->   <bean class="org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter"></bean>

配置自定义Bean

<!-- 配置自定义bean -->  <bean id="httpId" class="cn.itcast.controller.HttpController"></bean>

自定义类HttpController ,实现接口HttpRequestHandler

package cn.itcast.controller;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.HttpRequestHandler;public class HttpController implements HttpRequestHandler{@Overridepublic void handleRequest(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {//给页面返回值request.setAttribute("hello", "Hello world");//设置跳转物理视图地址request.getRequestDispatcher("/WEB-INF/jsps/index.jsp").forward(request, response);}}

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