spirng mvc

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1.编写一个请求页面

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"    pageEncoding="ISO-8859-1"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Insert title here</title></head><body>  <a href="hello">Hello</a></body></html>

2.编写一个普通的类，POJO作为Controller

package com.spring.mvc;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;//pojo一个普通类   作为 控制器@Controllerpublic class Helloworld {/* * 映射一个叫hello的请求，同一个请求要唯一，@RequestMapping("/hello")不能出现两个 * 可以不同的请求转发到同一个页面*/@RequestMapping("/hello")public String hello(){System.out.println("fds");/* * 返回hello给DispatcherServlet作为前缀名转发*/return "hello";}}

3.配置一个servlet来转发请求，spring中已经有一个核心类springDispatcherServlet来处理了

<!--         配置DispatcherServlet   -->  <!-- The front controller of this Spring Web application, responsible for handling all application requests --><servlet><servlet-name>springDispatcherServlet</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><!--需要转发的请求来自spring.mvc.xml  --><param-value>classpath:spring-mvc.xml</param-value></init-param><!--   web容器启动的时候加载配置 --><load-on-startup>1</load-on-startup></servlet><!-- Map all requests to the DispatcherServlet for handling --><servlet-mapping><servlet-name>springDispatcherServlet</servlet-name><!-- 拦截所有请求        -->      <url-pattern>/</url-pattern></servlet-mapping>

4.配置spring.mvc.ml

  <!--                     自动扫描包        -->       <context:component-scan base-package="com.spring.mvc"></context:component-scan>       <!--                       视图解析器        -->       <bean id=""  class="org.springframework.web.servlet.view.InternalResourceViewResolver">           <property name="prefix" value="/"></property>           <property name="suffix" value=".jsp"></property>       </bean>

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