一个简单案例初识springMVC
什么是springMVC？ Spring MVC属于SpringFrameWork的后续产品，已经融合在Spring Web Flow里面。Spring 框架提供了构建 Web 应用程序的全功能 MVC 模块。使用 Spring 可插入的 MVC 架构，从而在使用Spring进行WEB开发时，可以选择使用Spring的Spring MVC框架或集成其他MVC开发框架 优点： 易于同其它View框架（Tiles等）无缝集成，采用IOC便于测试。
1.新建一个web项目导入所需要的jar包和相关依赖
2.建一个index.jsp页面用于发送请求
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here
</title>
</head>
<body>
<a href="welcome">first springmvc
</a>
</body>
</html>
3.在web.xml中配置请求拦截
<?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">
<display-name>springMVC
</display-name>
<welcome-file-list>
<welcome-file>index.html
</welcome-file>
<welcome-file>index.htm
</welcome-file>
<welcome-file>index.jsp
</welcome-file>
<welcome-file>default.html
</welcome-file>
<welcome-file>default.htm
</welcome-file>
<welcome-file>default.jsp
</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>springDispatcherServlet
</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>
<load-on-startup>1
</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springDispatcherServlet
</servlet-name>
<url-pattern>/
</url-pattern>
</servlet-mapping>
</web-app>
4.在src下建一个包为com.liu.handler，并编写控制器Controller
package com
.liu
.handler
;
import org
.springframework
.stereotype
.Controller
;
import org
.springframework
.web
.bind
.annotation
.RequestMapping
;
@Controller
public class SpringMVCHandler {
@RequestMapping("welcome")
public String
welcome() {
return "success";
}
}
5.在src下建一个springMVC.xml配置文件（路径要与web.xml配置一直）
<?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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:component-scan base-package="com.liu.handler"></context:component-scan>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/views/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
这里表示配置试图解析器后，我们在控制器中返回值的路径就为WebContent下的views/success.jsp
6.在WebContent下创建views/success.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here
</title>
</head>
<body>
<h1>success.jsp
</h1>
</body>
</html>
7.启动tomcat进行测试是否跳转到success.jsp页面
点击该连接发送请求 至此表示第一个springMVC案例成功
