建立spring配置檔案：application-context.xml。

建立處理器類

package com.lanou.demo.controller;public class BookController implements Controller {
    @Override
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
}
}

public class OrderServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        System.out.println("OrderServlet.doGet");
    }
}

public class UserHandller implements HttpRequestHandler {
    @Override
    public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        System.out.println("UserHandller.handleRequest");
    }
}

1.配置處理器物件：

第一種：

  <bean id="/book.do" class="com.lanou.demo.controller.BookController"/>

第二種：

    <bean id="book1" class="com.lanou.demo.controller.BookController"/>
    <bean id="orderServlet" class="com.lanou.demo.controller.OrderServlet"/>
    <bean id="userHandller" class="com.lanou.demo.controller.UserHandller"/>
    <bean id="controller" class="com.lanou.demo.controller.CategoryController"/>

2.配置處理器對映器：HandlerMapping

第一種：這個處理器對映是根據Handler的bean的名字（也就是id）來進行對映的

<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>

第二種：簡單Url對映

<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <prop key="/book/1">book1</prop>
                <prop key="/book/2">book1</prop>
                <prop key="/order">orderServlet</prop>
                <prop key="/user">userHandller</prop>
            </props>
        </property>
    </bean>

 第三種:註解形式:

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>

配合Controller層的方法上註解@RequestMapping("/url")使用.

3.配置處理器介面卡:HandlerAdapter.

    <!--處理Servlet實現類型別的Handller 3-->
    <bean class="org.springframework.web.servlet.handler.SimpleServletHandlerAdapter"/>
    <!--處理Controller實現型別的Handler 1-->
    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>

    <!--處理HttpRequestHandller實現類型別的Handller 4-->
    <bean class="org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter"/>

   <!--處理RequestMapping註解形式的Handller 2--> 
   <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/> 

4.配置檢視解析器:

 <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="viewResolver">
        <!--檢視的字首-->
        <property name="prefix" value="/檢視字首(即前端網頁存放的位置)/"/>
        <!--檢視的字尾-->
        <property name="suffix" value="檢視字尾(即網頁型別:.jsp或.html)"/>

    </bean>

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