Maven项目启动自动启动执行Spring的Task定时任务

1、引入Spring相关jar包

2、定时任务类

package taskJob;

public class TaskDemo {
	public void test(){
		System.out.println("现在是北京时间：XXX,开始触发定时任务...");
	}
}

3、spring-task-context.xml配置文件

<?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:util="http://www.springframework.org/schema/util"  
	xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:jpa="http://www.springframework.org/schema/data/jpa" xmlns:mvc="http://www.springframework.org/schema/mvc"

        注意这里：=========
        xmlns:task="http://www.springframework.org/schema/task"
	xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd
		http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
		http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd

                注意这里：=========
		http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.1.xsd
		">
	<!-- 执行定时任务的类 -->
	<bean id="firsttask" class="taskJob.TaskDemo">   
    </bean>  
    <!-- 配置任务线性池 -->  
    <task:executor id="executor" pool-size="3" />  
    <task:scheduler id="scheduler" pool-size="3" />  
    <!-- 启用annotation方式 -->
    <task:annotation-driven scheduler="scheduler"  
        executor="executor" proxy-target-class="true" />  
    <!-- ref:引入执行定时任务的类   method:执行定时任务的方法 -->
    <task:scheduled-tasks scheduler="scheduler">  
        <task:scheduled ref="firsttask" method="test"
            cron="0 42 15 * * ?" />  
    </task:scheduled-tasks>  
</beans>

4、配置web.xml，实现项目启动自动执行定时任务

<listener>
	    <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
	</listener>
  	<listener>
      <listener-class>
        org.springframework.web.context.ContextLoaderListener
       </listener-class>
    </listener>  
 	<context-param>
	    <param-name>log4jConfigLocation</param-name>
		<param-value>/WEB-INF/log4j.properties</param-value>
	</context-param>
   	<context-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>
        /WEB-INF/config/spring-task-context.xml
      </param-value>
   	</context-param>  

你要做的事情就是自己成功的速度快于父母老去的速度