学习SpringMVC(一)之helloworld

首先，来一个入门案例，带你进入helloworld！

1.创建WEB工程，导入JAR包

2.在WEB.XML文件中配置一个DispatcherServlet

3.编写一个Controller类

<strong><span style="font-size:18px;">import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class HelloWorld {
	
	@RequestMapping("/helloworld")
	public String hello(){
		System.out.println("hello cgf,welcome to springmvc again");
		return "hello";
	}

}</span></strong>

4.在springmvc.xml配置文件中，配置自动扫描的包和配置视图解析器

<strong><span style="font-size:18px;"><?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: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-4.0.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<!-- 配置自动扫描的包 -->
<context:component-scan base-package="com.cgf.springmvc.handlers"></context:component-scan>		
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans></span></strong>

5.在WEB-INF/下创建一个hello.jsp