wvp-GB28181-pro/src/main/java/com/genersoft/iot/vmp/conf/ScheduleConfig.java

31 lines
1.3 KiB
Java
Raw Blame History

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

package com.genersoft.iot.vmp.conf;
import org.apache.commons.lang3.concurrent.BasicThreadFactory;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadPoolExecutor;
/**
* "@Scheduled"是Spring框架提供的一种定时任务执行机制默认情况下它是单线程的在同时执行多个定时任务时可能会出现阻塞和性能问题。
* 为了解决这种单线程瓶颈问题,可以将定时任务的执行机制改为支持多线程
*/
@Configuration
public class ScheduleConfig implements SchedulingConfigurer {
public static final int cpuNum = Runtime.getRuntime().availableProcessors();
private static final int corePoolSize = cpuNum;
private static final String threadNamePrefix = "scheduled-task-pool-%d";
@Override
public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
taskRegistrar.setScheduler(new ScheduledThreadPoolExecutor(corePoolSize,
new BasicThreadFactory.Builder().namingPattern(threadNamePrefix).daemon(true).build(),
new ThreadPoolExecutor.CallerRunsPolicy()));
}
}