@Scheduled实现并发执行

Spring自带的任务调度-定时器是一个个执行的，同一个时间内最大只能有一个任务在执行！

线程池实现多定时任务并发执行：

import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.TaskScheduler;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;

/**
 * 定时任务并行执行
 **/
@Configuration
@EnableScheduling
@Slf4j
public class ScheduledConfig implements SchedulingConfigurer {

    @Override
    public void configureTasks(ScheduledTaskRegistrar scheduledTaskRegistrar) {
        TaskScheduler scheduler = this.taskScheduler();
        scheduledTaskRegistrar.setTaskScheduler(scheduler);
    }

    @Bean(destroyMethod = "shutdown")
    public ThreadPoolTaskScheduler taskScheduler() {
        ThreadPoolTaskScheduler scheduler = new ThreadPoolTaskScheduler();
        scheduler.setPoolSize(10);
        scheduler.setThreadNamePrefix("task-");
        scheduler.setAwaitTerminationSeconds(60);
        scheduler.setWaitForTasksToCompleteOnShutdown(true);
        return scheduler;
    }
}