31 lines
1.3 KiB
Java
31 lines
1.3 KiB
Java
|
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()));
|
|||
|
|
}
|
|||
|
|
}
|