package com.sky.webpro.task;

import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;

import java.util.concurrent.Executors;
//配置自定义线程池
@Configuration
public class ScheduleConfig implements SchedulingConfigurer {
//    @Override
//    public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
//        taskRegistrar.setScheduler(Executors.newScheduledThreadPool(5));
//    }

    @Override
    public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
        taskRegistrar.setScheduler(this.getTaskScheduler());
    }

    private ThreadPoolTaskScheduler getTaskScheduler() {
        ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
        taskScheduler.setPoolSize(5);
        taskScheduler.setThreadNamePrefix("schedule-pool-");
        taskScheduler.afterPropertiesSet();
        return taskScheduler;
    }

}

package com.sky.webpro.task;

import org.springframework.scheduling.annotation.Async;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import java.time.LocalDateTime;

//@Component注解用于对那些比较中立的类进行注释；
//相对与在持久层、业务层和控制层分别采用 @Repository、@Service 和 @Controller 对分层中的类进行注释
@Component
@EnableScheduling   // 1.开启定时任务
@EnableAsync        // 2.开启多线程
public class MultithreadScheduleTask {

    @Async
    @Scheduled(fixedDelay = 1000)  //间隔1秒
    public void first() throws InterruptedException {
        System.out.println("第一个定时任务开始 : " + LocalDateTime.now().toLocalTime() + "\r\n线程 : " + Thread.currentThread().getName());
        System.out.println();
        Thread.sleep(1000 * 10);
    }

    @Async
    @Scheduled(fixedDelay = 2000)
    public void second() {
        System.out.println("第二个定时任务开始 : " + LocalDateTime.now().toLocalTime() + "\r\n线程 : " + Thread.currentThread().getName());
        System.out.println();
    }
}