一个简单的springmvc实现定时任务的例子

一、开发工具：STS

二、步骤：

1、创建SpringMvc项目

2、编辑web.xml文件

<?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">

	<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring-content.xml</param-value>
	</context-param>
	
	<!-- Creates the Spring Container shared by all Servlets and Filters -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<!-- Processes application requests -->
	<servlet>
		<servlet-name>appServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath*:/spring-mvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
		
	<servlet-mapping>
		<servlet-name>appServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>

</web-app>

3、书写spring-content.xml文件

<?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:task="http://www.springframework.org/schema/task"
	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.xsd
	http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd
	">
	
	<!-- 开始注入 -->
		<context:annotation-config></context:annotation-config>
		<context:component-scan base-package="com.huangkai.job"></context:component-scan>
		
		<task:scheduled-tasks>
		<!-- 每分钟执行一次    0 0/1 * * * ?-->
		<!-- 每5秒钟执行一次  */5 * * * * ? -->
			<task:scheduled ref="quartzJobUtil" method="doRun" cron="*/5 * * * * ?"/>
		</task:scheduled-tasks>
</beans>

4、书写spring-mvc.xml文件

<?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:task="http://www.springframework.org/schema/task"
	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.xsd
	http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd
	">
	
	<context:component-scan base-package="com.*">
		<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
	</context:component-scan>
	</beans>

5、创建bean

package com.huangkai.job;

import java.util.Date;

import org.springframework.stereotype.Service;

@Service("quartzJobUtil")
public class QuartzJobUtil {

	public void doRun() {
		
		System.out.println("现在时间是："+new Date());
	}
}