SpringMVC主要功能
在获取多个参数、文件上传、servlet功能单一方面都有很好的解决办法
SpringMVC 环境搭建
构建一个空的WEB项目（记住勾选xml文件）导入所需jar包 书写主配置文件： 创建resource文件夹 创建springmvc.xml
<?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.2.xsd ">
</beans >
在web.xml中添加以下代码
<!-- 配置SpringMVC的核心控制器类：DispatcherServlet -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
在springmvc.xml中添加controller层包扫描
<!-- 配置包扫描 -->
<context:component-scan base-package="cn.java.controller"></context:component-scan>
在springmvc.xml中添加注解驱动
<!-- 加入SpringMVC特有的注解驱动 -->
<mvc:annotation-driven></mvc:annotation-driven>
