Spring定时任务多线程

单线程

1)在Spring.xml中开启定时器的功能

<?xml version="1.0" encoding="UTF-8"?><beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://www.springframework.org/schema/beans"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-3.0.xsd  http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-3.0.xsd  http://www.springframework.org/schema/task  http://www.springframework.org/schema/task/spring-task-3.0.xsd  "><!-- 让Spring找到被@Component注解的类 --><context:component-scan base-package="cn.ltian.base" /><!--定时器开关 --><task:annotation-driven  />

2)编写定时器类

package cn.ltian.base;import org.springframework.scheduling.annotation.Async;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;@Component
public class MyScheduler {//每10秒执行一次@Scheduled(cron = "0/2 * * * * ?")public void aTask() {DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");System.out.println(sdf.format(new Date())+"     :"+Thread.currentThread().getName()+"a任务执行一次,2m 开始");try{Thread.sleep(5000);}catch(Exception e){}System.out.println(sdf.format(new Date())+"     :"+Thread.currentThread().getName()+"a任务执行一次,2m 结束");}//每5秒执行一次@Scheduled(cron = "0/5 * * * * ?")public void bTask() {DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");System.out.println(sdf.format(new Date())+"     :"+Thread.currentThread().getName()+"b任务执行一次,5m");}
}

3)运行结果

2018-11-13 20:27:20 :pool-1-thread-1a任务执行一次,2m 开始

2018-11-13 20:27:25 :pool-1-thread-1a任务执行一次,2m 结束

2018-11-13 20:27:25 :pool-1-thread-1b任务执行一次,5m

2018-11-13 20:27:26 :pool-1-thread-1a任务执行一次,2m 开始

2018-11-13 20:27:31 :pool-1-thread-1a任务执行一次,2m 结束

2018-11-13 20:27:31 :pool-1-thread-1b任务执行一次,5m

2018-11-13 20:27:32 :pool-1-thread-1a任务执行一次,2m 开始

2018-11-13 20:27:37 :pool-1-thread-1a任务执行一次,2m 结束

2018-11-13 20:27:37 :pool-1-thread-1b任务执行一次,5m

2018-11-13 20:27:38 :pool-1-thread-1a任务执行一次,2m 开始

2018-11-13 20:27:43 :pool-1-thread-1a任务执行一次,2m 结束

2018-11-13 20:27:43 :pool-1-thread-1b任务执行一次,5m

2018-11-13 20:27:44 :pool-1-thread-1a任务执行一次,2m 开始

多线程（同步单任务）

1)在Spring.xml中开启定时器的功能

<?xml version="1.0" encoding="UTF-8"?><beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://www.springframework.org/schema/beans"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-3.0.xsd  http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-3.0.xsd  http://www.springframework.org/schema/task  http://www.springframework.org/schema/task/spring-task-3.0.xsd  "><!-- 让Spring找到被@Component注解的类 -->
<context:component-scan base-package="cn.ltian.base" />
<!--定时器开关 -->
<task:annotation-driven scheduler="MyScheduler"/>
<!-- 配置任务线程池 -->
<task:scheduler id="MyScheduler" pool-size="4" />

2)编写定时器类

package cn.ltian.base;import org.springframework.scheduling.annotation.Async;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;@Component
public class MyScheduler {//每10秒执行一次@Scheduled(cron = "0/2 * * * * ?")public void aTask() {DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");System.out.println(sdf.format(new Date())+"     :"+Thread.currentThread().getName()+"a任务执行一次,2m 开始");try{Thread.sleep(5000);}catch(Exception e){}System.out.println(sdf.format(new Date())+"     :"+Thread.currentThread().getName()+"a任务执行一次,2m 结束");}//每5秒执行一次@Scheduled(cron = "0/5 * * * * ?")public void bTask() {DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");System.out.println(sdf.format(new Date())+"     :"+Thread.currentThread().getName()+"b任务执行一次,5m");}
}

3)运行结果

2018-11-13 20:29:18 :MyScheduler-1a任务执行一次,2m 开始

2018-11-13 20:29:20 :MyScheduler-2b任务执行一次,5m

2018-11-13 20:29:23 :MyScheduler-1a任务执行一次,2m 结束

2018-11-13 20:29:24 :MyScheduler-2a任务执行一次,2m 开始

2018-11-13 20:29:25 :MyScheduler-3b任务执行一次,5m

2018-11-13 20:29:29 :MyScheduler-2a任务执行一次,2m 结束

2018-11-13 20:29:30 :MyScheduler-3b任务执行一次,5m

2018-11-13 20:29:30 :MyScheduler-2a任务执行一次,2m 开始

2018-11-13 20:29:35 :MyScheduler-2a任务执行一次,2m 结束

2018-11-13 20:29:35 :MyScheduler-3b任务执行一次,5m

2018-11-13 20:29:36 :MyScheduler-2a任务执行一次,2m 开始

2018-11-13 20:29:40 :MyScheduler-4b任务执行一次,5m

2018-11-13 20:29:41 :MyScheduler-2a任务执行一次,2m 结束

2018-11-13 20:29:42 :MyScheduler-2a任务执行一次,2m 开始

2018-11-13 20:29:45 :MyScheduler-4b任务执行一次,5m

2018-11-13 20:29:47 :MyScheduler-2a任务执行一次,2m 结束

2018-11-13 20:29:48 :MyScheduler-2a任务执行一次,2m 开始

2018-11-13 20:29:50 :MyScheduler-4b任务执行一次,5m

2018-11-13 20:29:53 :MyScheduler-2a任务执行一次,2m 结束

2018-11-13 20:29:54 :MyScheduler-2a任务执行一次,2m 开始

2018-11-13 20:29:55 :MyScheduler-4b任务执行一次,5m

2018-11-13 20:29:59 :MyScheduler-2a任务执行一次,2m 结束

2018-11-13 20:30:00 :MyScheduler-2a任务执行一次,2m 开始

2018-11-13 20:30:00 :MyScheduler-4b任务执行一次,5m

多线程（异步单任务）

1)在Spring.xml中开启定时器的功能

<?xml version="1.0" encoding="UTF-8"?><beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://www.springframework.org/schema/beans"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-3.0.xsd  http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-3.0.xsd  http://www.springframework.org/schema/task  http://www.springframework.org/schema/task/spring-task-3.0.xsd  "><!-- 让Spring找到被@Component注解的类 --><context:component-scan base-package="cn.ltian.base" /><!--定时器开关 --><task:annotation-driven scheduler=" myScheduler"/><!-- 配置任务线程池 --><task:scheduler id="myScheduler" pool-size="4" />

2)编写定时器类

package cn.ltian.base;import org.springframework.scheduling.annotation.Async;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;@Component
public class MyScheduler {//每10秒执行一次@Scheduled(cron = "0/2 * * * * ?")@Async(value="MyScheduler")public void aTask() {DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");System.out.println(sdf.format(new Date())+"     :"+Thread.currentThread().getName()+"a任务执行一次,2m 开始");try{Thread.sleep(5000);}catch(Exception e){}System.out.println(sdf.format(new Date())+"     :"+Thread.currentThread().getName()+"a任务执行一次,2m 结束");}//每5秒执行一次@Scheduled(cron = "0/5 * * * * ?")public void bTask() {DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");System.out.println(sdf.format(new Date())+"     :"+Thread.currentThread().getName()+"b任务执行一次,5m");}
}

3)运行结果

2018-11-13 20:32:24 :MyScheduler-2a任务执行一次,2m 开始

2018-11-13 20:32:25 :MyScheduler-3b任务执行一次,5m

2018-11-13 20:32:26 :MyScheduler-3a任务执行一次,2m 开始

2018-11-13 20:32:28 :MyScheduler-4a任务执行一次,2m 开始

2018-11-13 20:32:29 :MyScheduler-2a任务执行一次,2m 结束

2018-11-13 20:32:30 :MyScheduler-2b任务执行一次,5m

2018-11-13 20:32:30 :MyScheduler-1a任务执行一次,2m 开始

2018-11-13 20:32:31 :MyScheduler-3a任务执行一次,2m 结束

2018-11-13 20:32:32 :MyScheduler-3a任务执行一次,2m 开始

2018-11-13 20:32:33 :MyScheduler-4a任务执行一次,2m 结束

2018-11-13 20:32:34 :MyScheduler-4a任务执行一次,2m 开始

2018-11-13 20:32:35 :MyScheduler-1a任务执行一次,2m 结束

2018-11-13 20:32:35 :MyScheduler-2b任务执行一次,5m

2018-11-13 20:32:36 :MyScheduler-2a任务执行一次,2m 开始

2018-11-13 20:32:37 :MyScheduler-3a任务执行一次,2m 结束

2018-11-13 20:32:38 :MyScheduler-3a任务执行一次,2m 开始

转载于:https://www.cnblogs.com/ltian123/p/10027798.html