red.honey.oss.config.AsyncConfig Maven / Gradle / Ivy

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package red.honey.oss.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;

/**
 * @author yangzhijie
 * @date 2020/10/15 17:23
 */
@Configuration
public class AsyncConfig implements AsyncConfigurer {

    @Override
    @Bean("asyncExecutor")
    public Executor getAsyncExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        // 此方法返回可用处理器的虚拟机的最大数量; 不小于1
        int core = Runtime.getRuntime().availableProcessors();
        // 设置核心线程数
        executor.setCorePoolSize(core);
        // 设置最大线程数
        executor.setMaxPoolSize(core * 2 + 1);
        // 除核心线程外的线程存活时间
        executor.setKeepAliveSeconds(3);
        // 如果传入值大于0，底层队列使用的是LinkedBlockingQueue,否则默认使用SynchronousQueue
        executor.setQueueCapacity(40);
        // 线程名称前缀
        executor.setThreadNamePrefix("honey-sdk-async-executor-");
        // 设置拒绝策略
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        executor.initialize();
        return executor;
    }
}