spring task 调度器_spring task获取调度器信息-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_34321070/article/details/53579324

本文介绍了如何在Spring框架中配置和使用Spring Task进行任务调度。通过web.xml配置ContextLoaderListener，applicationContext.xml中导入task命名空间并配置ScheduledTasks，以及在Schedler.java类中定义任务方法，实现了定时任务的执行。示例中展示了两个定时任务show和show1，通过applicationConfig.properties文件设置执行间隔。

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<  web.xml >

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>

  <!-- spring -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>

  <!-- loaderListener -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

</web-app>

<  applicationContext.xml >

<?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:p="http://www.springframework.org/schema/p"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:task="http://www.springframework.org/schema/task"
       xmlns:context="http://www.springframework.org/schema/context"
       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/tx http://www.springframework.org/schema/tx/spring-tx.xsd
	  http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
      http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd" default-lazy-init="false">

    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>
                    classpath:applicationConfig.properties
                </value>
            </list>
        </property>
    </bean>

    <context:annotation-config/>

    <context:component-scan base-package="com.jetair"/>

    <bean id="schedler" class="com.jetair.Schedler"/>

    <task:annotation-driven/>

    <task:scheduled-tasks>
        <task:scheduled ref="schedler" method="show" cron="${SCHEDLER_TIME}"/>
        <task:scheduled ref="schedler" method="show1" cron="${SCHEDLER_TIME}"/>
    </task:scheduled-tasks>

</beans>

< Schedler.java  >

package com.jetair;

import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component;

/**
 * Created by 22431 on 2016/12/11.
 */
@Component
public class Schedler {

//    @Async
    public void show() throws InterruptedException {

        Thread.sleep(10000);
        System.out.println("Spring Schedler------------");

    }

    public void show1() {

        System.out.println("Spring Schedler");

    }

}

<  applicationConfig.properties >

#定时器时间
SCHEDLER_TIME=5,10,15,20,25,30,35,40,45,50,55 * * * * ?