<!-- 為上下文引數(相當於全域性變數)contextConfigLocation賦值,該配合指向application開頭的xml檔案, 定時任務的配置檔案 application-job.xml也將被讀取 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:application*.xml</param-value>
    </context-param>
    
    <!-- 對web容器啟動進行監聽,當容器啟動後將自動裝配上下文變數contextConfigLocation指向的配置檔案 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
 

二:配置application-job.xml檔案

注意在<beans>節點中配置xmlns:task和xsi:schemaLocation關於task的屬性值

<?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">

	<description>Job Config</description>
	
	<!-- 掃描定時器所在的包路徑 -->
	<context:component-scan base-package="org.power.quickbuy.job" />

	<!-- 配置定時任務 -->
	<task:scheduled-tasks>
		<task:scheduled ref="alertJob" method="execute" cron="0 0 9 * * ?" />
	</task:scheduled-tasks>
	<task:scheduled-tasks>
		<task:scheduled ref="statisticsJob" method="execute" cron="0 0 1 * * ?" />
	</task:scheduled-tasks>
</beans>
 

三: 建立定時任務的類及方法

注意: 類頭部需要@Service註解

package org.power.quickbuy.job;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

@Service("alertJob")
public class AlertJob {
	private static Logger logger = LoggerFactory.getLogger(AlertJob.class);
	
	public void execute(){
		logger.info("當前時間:[{}]", System.currentTimeMillis());
	}
}