spring boot(18) : 多线程执行定时任务_多线程多种定时任务每秒都执行-优快云博客

本文介绍了一个使用Spring框架实现的定时任务案例，通过注解@Scheduled配置任务执行频率，采用Guava的ThreadFactoryBuilder自定义线程工厂，创建了具有固定核心线程数和最大线程数的线程池，用于执行脱硫数据库连接的心跳检测任务。

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参考 : https://www.cnblogs.com/mmzs/p/10161936.html

import com.google.common.util.concurrent.ThreadFactoryBuilder;
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.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

/**
 * @author jean.zj
 * @date 2018-11-18
 */
@Component
@Configuration 
@EnableScheduling
public class Task {


    private ExecutorService executorService = new ThreadPoolExecutor(5, 10,
            3000, TimeUnit.MILLISECONDS, new LinkedBlockingDeque<>(10), new ThreadFactoryBuilder()
            .setNameFormat("Task-impl-%d").build());

    /**
     * 脱硫数据库连接心跳检测
     * 3分钟之后开始,每3分钟运行一次
     */
    @Scheduled(cron = "0 3/3 * * * ? ")
    public void test() {
        executorService.execute(() -> {
            
        });
    }

}

线程依赖 : https://blog.youkuaiyun.com/Lxinccode/article/details/83088189

在线Cron表达式生成器

http://cron.qqe2.com/

http://www.bejson.com/othertools/cron/