package com.example.springboot01.config;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component
public class MyScheduler {

    @Scheduled(fixedRate = 1000) //每2秒執(zhí)行一次
    public void statusCheck() {
        System.out.println("【*** A ***】 間隔調度");
    }

    @Scheduled(cron="* * * * * ?")  //每秒調用一次
    public void removeToHis() {
        try {
            //睡眠3秒
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("【*** B ***】cron調度");
    }
}

package com.example.springboot01.config;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;
import java.util.concurrent.Executors;

/**
 * 用于做并行調度使用
 */
@Configuration
public class SchedulerConfig implements SchedulingConfigurer {

    @Override
    public void configureTasks(ScheduledTaskRegistrar scheduledTaskRegistrar) {
        scheduledTaskRegistrar.setScheduler(Executors.newScheduledThreadPool(100));
    }
}