1、schedule 注解定時(shí)器

import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import java.util.Date;
/**
 * 注解 定時(shí)器
 *
 */
@Component
@Configuration
@EnableScheduling
public class FirstSecheduler {

    //五秒 運(yùn)行一次
    @Scheduled(cron = "0/5 * * * * ?")
    public void fiveSeconds(){

        System.out.println("start:"+new Date().getSeconds());
        System.out.println("你好啊");
        System.out.println("end:"+new Date().getSeconds());
    }
}
2,、動(dòng)態(tài)定時(shí)器 可配置間隔時(shí)間 和內(nèi)容

/**
 * 實(shí)現(xiàn)sechedule
 */
@Component
@Configuration
@EnableScheduling
public class SecondSchedule implements SchedulingConfigurer {


    @Override
    public void configureTasks(ScheduledTaskRegistrar scheduledTaskRegistrar) {

        scheduledTaskRegistrar.addTriggerTask(() ->System.out.println("執(zhí)行動(dòng)態(tài)定時(shí)任務(wù): " + new Date()),
                triggerContext -> {
                    //2.1 從數(shù)據(jù)庫(kù)獲取執(zhí)行周期
                    String cron = "0/5 * * * * ?";
                    //2.3 返回執(zhí)行周期(Date)
                    return new CronTrigger(cron).nextExecutionTime(triggerContext);
                }

        );
    }
}
3,、使用多線程定時(shí)器

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.util.Date;
/**
 * 多線程定時(shí)任務(wù)
 */

@Component
@EnableScheduling //開啟定時(shí)器
@EnableAsync //開啟多線程
public class ThreeSChedule {

    @Async
    @Scheduled(fixedDelay = 1000)
    public void first(){

        System.out.println("first:"+new Date().toLocaleString());
    }

    @Async
    @Scheduled(fixedDelay = 1000)
    public void second(){

        System.out.println("second:"+new Date().toLocaleString());
    }

}
4,、使用外部 quartz定時(shí)
pom配置

<dependency>
    <groupId>org.quartz-scheduler</groupId>
    <artifactId>quartz</artifactId>
    <version>2.3.1</version>
</dependency>

import java.util.Date;
/**
 * 定義任務(wù)類 實(shí)現(xiàn) Job 接口
 */
public class FirstQuartz implements Job {
    @Override
    public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {

        System.out.println("quartz"+new Date().toLocaleString());

    }
}

import org.quartz.*;
import org.quartz.impl.StdSchedulerFactory;

/**
 * 主函數(shù)調(diào)用quartz
 */
public class QuartzMain {

    public static void main(String[] args) throws Exception{

        //創(chuàng)建job對(duì)象
        JobDetail jobDetail = JobBuilder.newJob(FirstQuartz.class).build();

        //觸發(fā)時(shí)間
        Trigger trigger = TriggerBuilder.newTrigger().withSchedule(
                CronScheduleBuilder.cronSchedule("0/2 * * * * ?")).build();

        //作業(yè)內(nèi)容
        Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
        scheduler.scheduleJob(jobDetail,trigger);
        //啟動(dòng)
        scheduler.start();



    }
}

可根據(jù)不同需求使用

以上是自學(xué)總結(jié),。有借鑒前輩帖子望見諒。不足之處請(qǐng)多多指教