简单的Spring MVC经典案例
简单的Spring MVC经典案例
主题:构建一个基于SpringMVC的HelloWord Web 项目
目的:快速体验什么是SpringMVC
方案:
1、创建工程,命名:SpringMVC
2、导包
3、在SRC下添加spring-mvc.xml配置文件
(注意:名字可以随便取,最好就是看上就知道是什么)
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> </beans>
4、在web.xml配置封装在Spring里面的servlet--DispatcherServlet前端控制器,并指定spring-mvc.xml文件
<?xml version="1.0" encoding="UTF-8"?><web-appxmlns: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>
<servlet>
<servlet-name>SpringMVC</servlet-name>
<!-- DispathcherServlet 前端控制器-->
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<!-- 变量名随便取-->
<param-name>contextConfigLocation</param-name>
<!-- 指定SpringMVC配置文件名-->
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<!-- load-on-startup等于1,则表示容器启动就实例化此Servlet-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<!-- 要与上面Servlet的名字对应-->
<servlet-name>SpringMVC</servlet-name>
<!-- 用来匹配客户端请求-->
<url-pattern>*.action</url-pattern>
</servlet-mapping>
</web-app>
5、在spring-mvc.xml中配置 【HandlerMapping组件】------------------作用------>设置客户端请求与Controller
【InternalResourceViewResolver组件】--作用------>设置视图配置
【HelloController】------------------------作用------->测试请求处理
<?xml version="1.0" encoding="UTF-8"?><beansxmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- 定义客户端请求映射关系-->
<!-- HeanlerMapping是Spring核心组件之一-->
<beanid="headlerMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<propertyname="mappings">
<map>
<entrykey="/hello.action">
<value>helloController</value>
</entry>
</map>
</property>
</bean>
<!-- 增加HelloController的Bean-->
<beanid="helloController" class="controller.HelloController" />
<!-- 定义视图解释器(Spring核心组件之一)-->
<beanid="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<propertyname="prefix" value="WEB-INF/jsp/"/>
<propertyname="suffix" value=".jsp"/>
</bean>
</beans>
6、编写HelloController【注意:需要实现Controller接口】
package controller;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
public class HelloController implements Controller{
@Override
public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception {
ModelAndView mv= new ModelAndView("hello");
System.out.println("处理hello.action请求");
return mv;
}
}
7、在WEB-INF文件夹下新增"jsp"文件夹,并添加hello.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<metahttp-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
欢迎来到Spring的世界!
</body>
</html>
8、跑起来吧兄弟们~然后访问http://localhost/SpringMVC/hello.action,效果如下:
Spring MVC+Spring3+Hibernate4开发环境搭建
Spring MVC整合Freemarker基于注解方式
基于注解的Spring MVC简单介绍
Spring MVC 框架搭建及详解
Spring MVC使用Cron表达式的定时器
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