spring定时任务轮询(spring Task)

2024-03-02 11:42:16

定时任务轮询比如任务自服务器启动就开始运行，并且每隔5秒执行一次。

以下用spring注解配置定时任务。
1、添加相应的schema

xmlns:task="

xsi:schemaLocation="

    http://www.springframework.org/schema/task

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

完整schema如下：

<beans xmlns="http://www.springframework.org/schema/beans"

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

	xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

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

	xsi:schemaLocation="http://www.springframework.org/schema/beans

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

      http://www.springframework.org/schema/context

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

      http://www.springframework.org/schema/mvc

      http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd

      http://www.springframework.org/schema/task

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

</beans>

2、配置自动调度的包和定时开关

<!-- 注解扫描包 -->

<context:component-scan base-package="com.ljq.web.controller.annotation" />

<!-- Enables the Spring Task @Scheduled programming model -->

<task:executor id="executor" pool-size="5" />

<task:scheduler id="scheduler" pool-size="10" />

<task:annotation-driven executor="executor" scheduler="scheduler" />

3、添加调度测试类

package com.ljq.web.controller.annotation;

import org.springframework.scheduling.annotation.Scheduled;

import org.springframework.stereotype.Service;

/**

 * 调度测试类(每隔5秒执行一次)

 *

 * @author Administrator

 *

 */

@Service

public class TaskTest {

	@Scheduled(cron = "0/5 * * * * ? ")

	public void myTestWork() {

		System.out.println(System.currentTimeMillis());

	}

}

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