spring 入门案列

http://download.csdn.net/download/qq_34125999/9970998  所需要的 包

  1 案列视图  

       

2 配置 web.xml

<!-- 配置  Spring MVC 的前端控制器,DispatcherServlet 用来拦截用户的请求 -->

  <servlet>

        <!-- Servlet 的名字 -->

        <servlet-name>springmvc</servlet-name>

        <!-- 对应的类 -->

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <!-- 配置参数 -->

        <init-param>

            <!-- 参数名 -->

            <param-name>contextConfigLocation</param-name>

            <!-- 参数路径 -->

            <param-value>classpath:spring/spring-config.xml</param-value>

        </init-param>

        <!-- 启动时立即加载 -->

        <load-on-startup>1</load-on-startup>

  </servlet>

  <!-- 映射声明 -->

  <servlet-mapping>

     <!-- 请求对应的名称 -->

     <servlet-name>springmvc</servlet-name>

     <!-- 监听所有的请求 -->

     <url-pattern>/</url-pattern>

  </servlet-mapping>

3 配置 spring-config

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"

    xmlns:context="http://www.springframework.org/schema/context"

    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"

    xsi:schemaLocation="http://www.springframework.org/schema/beans

        http://www.springframework.org/schema/beans/spring-beans-4.3.xsd

        http://www.springframework.org/schema/mvc

        http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd

        http://www.springframework.org/schema/context

        http://www.springframework.org/schema/context/spring-context-4.3.xsd

        http://www.springframework.org/schema/aop

        http://www.springframework.org/schema/aop/spring-aop-4.3.xsd

        http://www.springframework.org/schema/tx

        http://www.springframework.org/schema/tx/spring-tx-4.3.xsd ">

    <!--自动扫面 com.demo.controller 下的类，看是否有相关的注解类    -->

    <context:component-scan base-package="com.demo.controller"/>

    <!-- 配置视图解析器-->

    <bean id="viewResolver"

        class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/WEB-INF/view/" />

        <property name="suffix" value=".jsp" />

    </bean>

</beans>

4 写测试 controller

package com.demo.controller;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

@Controller

public class test {

    @RequestMapping(value="/hello")

    public String hello(){

        System.out.println("hello");

        return "index";

    }

}

5 运行