spring task 定时任务实现示例

spring task 定时任务实现示例

一、引入spring相关jar包：

二、在web.xml中配置spring

Spring监听器

org.springframework.web.context.ContextLoaderListener

contextConfigLocation

classpath:applicationContext.xml

三、在applicationContext.xml中配置监听器

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xmlns:task="http://springframework.org/schema/task"

xsi:schemaLocation="http://springframework.org/schemhttp://a/beans

http://springframework.org/schema/beans/spring-beans-3.0.xsd

http://springframework.org/schema/context

http://springframework.org/schema/context/spring-context-3.0.xsd

http://springframework.org/schema/task

http://springframework.org/schema/task/spring-task-3.0.xsd"

default-lazy-init="false">

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xmlns:task="http://springframework.org/schema/task"

xsi:schemaLocation="http://springframework.org/schemhttp://a/beans

http://springframework.org/schema/beans/spring-beans-3.0.xsd

http://springframework.org/schema/context

http://springframework.org/schema/context/spring-context-3.0.xsd

http://springframework.org/schema/task

http://springframework.org/schema/task/spring-task-3.0.xsd"

default-lazy-init="false">

四、编写实体类

package com.test.task;

import java.text.DateFormat;

import java.util.Date;

import org.springframework.scheduling.annotation.Scheduled;

import org.springframework.stereotype.Component;

@Component

public class TestTask {

@Scheduled(cron = "*/5 * * * * ?")

public void print(){

String time = DateFormat.getDateTimeInstance().format(new Date());

System.out.println("定时器触发打印"+time);

}

}

五、工程目录：

运行结果：

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