package com.gkhy.exam.common.config;
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import com.gkhy.exam.common.utils.Threads;
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import org.apache.commons.lang3.concurrent.BasicThreadFactory;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
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import java.util.concurrent.ScheduledExecutorService;
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import java.util.concurrent.ScheduledThreadPoolExecutor;
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import java.util.concurrent.ThreadPoolExecutor;
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@Configuration
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public class ThreadPoolConfig {
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//核心线程池大小
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private int corePoolSize=10;
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//最大可创建的线程数
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private int maxPoolSize=500;
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//队列最大长度
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private int queueCapacity=1000;
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//线程池维护非线程允许的空闲时间
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private int keepAliveSeconds=30;
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@Bean(name = "threadPoolTaskExecutor")
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public ThreadPoolTaskExecutor threadPoolTaskExecutor(){
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ThreadPoolTaskExecutor executor=new ThreadPoolTaskExecutor();
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executor.setMaxPoolSize(maxPoolSize);
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executor.setCorePoolSize(corePoolSize);
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executor.setQueueCapacity(queueCapacity);
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executor.setKeepAliveSeconds(keepAliveSeconds);
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// 线程池对拒绝任务(无线程可用)的处理策略
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executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
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executor.initialize();
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return executor;
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}
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/**
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* 执行周期性或定时任务
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*/
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@Bean(name = "scheduledExecutorService")
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public ScheduledExecutorService scheduledExecutorService(){
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return new ScheduledThreadPoolExecutor(corePoolSize,
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new BasicThreadFactory.Builder().namingPattern("schedule-pool-%d").daemon(true).build(),
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new ThreadPoolExecutor.CallerRunsPolicy()){
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@Override
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protected void afterExecute(Runnable r, Throwable t) {
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super.afterExecute(r, t);
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Threads.printException(r,t);
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}
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};
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}
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}
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