springMVC部署

  一、导入springMVC所需要的jar包

　　   下载地址：http://repo.spring.io/release/org/springframework/spring/

　　 

二、springMVC框架配置

　　1、

1.1 常规web.xml配置

  <servlet>
       <servlet-name>spring</servlet-name>
       <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
       <load-on-startup>1</load-on-startup>
   </servlet>
   <servlet-mapping>
       <servlet-name>spring</servlet-name>
       <url-pattern>*.do</url-pattern>
   </servlet-mapping>

　　    1.2 spring配置文件不在WebRoot/WEB-INF下创建时，web.xml 文件配置：

 <!-- spring mvc 核心servlet -->
  <servlet>
      <servlet-name>applicationContext</servlet-name>
      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

     <!-- 加载相应的xml,而不会去加载/WEB-INF/下的applicationContext.xml。 -->
         <init-param>
             <param-name>contextConfigLocation</param-name>
             <param-value>classpath:applicationContext.xml</param-value>
         </init-param>
     <load-on-startup>1</load-on-startup>

  </servlet>
  <servlet-mapping>
      <servlet-name>applicationContext</servlet-name>
      <url-pattern>/</url-pattern>
  </servlet-mapping>

　　2、（在WebRoot/WEB-INF下）创建spring配置文件

　　注意：此配置文件名称必须为 :servletName-servlet.xml  (servletName即为web.xml中核心servlet的name)，此处名称为spring-servlet.xml。 如果不在WebRoot/WEB-INF下创建，则需要在web.xml中作相应配置，否则文件找不到，此时web.xml配置参考 1.2 spring配置文件不在WebRoot/WEB-INF下创建时，web.xml 文件配置。

spring-servlet.xml配置：

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="
               http://www.springframework.org/schema/aop
               http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
               http://www.springframework.org/schema/mvc
               http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
            http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context-3.0.xsd
            http://www.springframework.org/schema/tx
            http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">   

      <!--1 MVC注解支持  -->
      <mvc:annotation-driven />
      <!--2 注解扫描目录-->
      <context:component-scan base-package="com.sxdx"></context:component-scan>
      <!--3 处理静态文件 -->
      <mvc:default-servlet-handler />

      <!-- 视图解析器 -->
      <!-- <bean  class="org.springframework.web.servlet.view.InternalResourceViewResolver">
           <property name="prefix" value="/pages/" />
           <property name="suffix" value=".jsp" />
     </bean> -->

</beans> 

　　3、创建Controller控制器（Action）　

 package com.sxdx.hello;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.servlet.ModelAndView;

 @Controller
 public class demo {
     @RequestMapping(value="/demo1")
     public String demo1(HttpServletRequest request,
                 HttpServletResponse response){
         System.out.println("demo1===");
         return "";
     }
 }

　　4、浏览器访问 http://localhost:8080/spring01/demo1.do 后台输出demo1===