随机漫步的傻瓜

spring mvc 教程

1， mvc的原理图

2，web.xml配置

     

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

&lt;!-- Processes application requests --&gt;
&lt;servlet&gt;
	&lt;servlet-name&gt;appServlet&lt;/servlet-name&gt;
	&lt;servlet-class&gt;org.springframework.web.servlet.DispatcherServlet&lt;/servlet-class&gt;
	&lt;init-param&gt;
		&lt;param-name&gt;contextConfigLocation&lt;/param-name&gt;
		&lt;param-value&gt;/WEB-INF/spring/appServlet/servlet-context.xml&lt;/param-value&gt;
	&lt;/init-param&gt;
	&lt;load-on-startup&gt;1&lt;/load-on-startup&gt;
&lt;/servlet&gt;		

&lt;servlet-mapping&gt;
	&lt;servlet-name&gt;appServlet&lt;/servlet-name&gt;
	&lt;url-pattern&gt;/&lt;/url-pattern&gt;
&lt;/servlet-mapping&gt;



</web-app>


3， servlet-context.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/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-3.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
	<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
	<!-- Scans within the base package of the application for @Components to configure as beans -->
	<!-- @Controller, @Service, @Configuration, etc. -->
	<context:component-scan base-package="xyz.sample.baremvc" />
	<!-- Enables the Spring MVC @Controller programming model -->
	<mvc:annotation-driven />
</beans>


4, controller 和 jsp 


package xyz.sample.baremvc;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
/**
 * Handles requests for the application home page.
 */
@Controller
public class HomeController {
	@RequestMapping(value = "/")
	public String home() {
		System.out.println("HomeController: Passing through...");
		return "WEB-INF/views/home.jsp";
	}
}




<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page session="false" %>
<html>
	<head>
		<title>Home</title>
	</head>
	<body>
		<h1>Hello world!</h1>
	</body>
</html>



好了，可以直接在浏览器查看结果了