spring中实现springMVC

1. applicationContext.xml 中:

<?xml version="1.0" encoding="UTF-8"?>  
<!-- 引入约束 -->    
<beans xmlns="http://www.springframework.org/schema/beans"  
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
       xmlns:aop="http://www.springframework.org/schema/aop"  
       xmlns:tx="http://www.springframework.org/schema/tx"                                 注意：xmlns需要和 xsi  一 一 对应
       xmlns:context="http://www.springframework.org/schema/context"  
       xmlns:mvc="http://www.springframework.org/schema/mvc"  
     
       xsi:schemaLocation="   
            http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans-2.5.xsd   
            http://www.springframework.org/schema/aop
            http://www.springframework.org/schema/aop/spring-aop-2.5.xsd   
            http://www.springframework.org/schema/tx
            http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context-2.5.xsd
            http://www.springframework.org/schema/mvc
            http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd ">

    <aop:aspectj-autoproxy/>  <!-- 要添加本行 -->
   
    <!-- 自动扫描  -->
    <context:component-scan base-package="com.yuan"/>   
  
</beans>

2. spring-servlet.xml   (mvc配置)

 <beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-2.5.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">


    <!-- 加入注解和验证的支持 -->
    <mvc:annotation-driven></mvc:annotation-driven>
    <!-- 扫描包实现注解的自动装配 -->
    <context:component-scan base-package="com.yuan.controller"></context:component-scan>
    <!-- 配置视图解析器 -->
    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>        
      
</beans>

3. web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
 
  <servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
 
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
 
    <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
 
  <!--  -->
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

</web-app>

4. controller

package com.yuan.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.yuan.bean.Student;
import com.yuan.service.impl.StudentServiceImpl;

//控制器
@Controller
public class LonginController {
 
    @Autowired
    private StudentServiceImpl studentServiceImpl;
    
    @Autowired
    private Student s;
    
    @RequestMapping()
    public String login(){
        return  "index";
    }
    
    @RequestMapping("/show")
    public void showStudent(){
        System.out.println("show...");
        studentServiceImpl.showStudentName();
    }
}

5.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    
  </head>
 
  <body>
      <form action="/test_spring/show.do" method="post">
       用户名:<input type="text" name="name"/><br/>
       密码:<input type="password" name="passWord"><br/>
       <input  type="submit" value="提交" />
      </form>
  </body>
</html>

6.注意jar包必须放在 lib 下面 , bean ,dao service 配置上对应的注解就ok了。

  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

 主要实现，启动web服务器时，自动装配ApplicationContext 。 装配之后就可以通过 autowried注解活得bean , 不然需要  ApplicationContext ac = new FileSystemXmlApplicationContext("src/applicationContext.xml"); ac.getBean(" ");来获取。