spring boot的线程池配置

spring boot的线程池配置

/**
 * 线程池配置
 *
 */
@EnableAsync 
@Configuration
public class AsyncConfig implements AsyncConfigurer {
	
	//初始化@Async需要的线程池
    @Override
    public Executor getAsyncExecutor() {
    	/**满足aop的前提下,用@Async注解来做异步执行**/
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(5); //核心线程数
        executor.setMaxPoolSize(10);  //最大线程数
        executor.setQueueCapacity(100); //队列大小
        executor.setKeepAliveSeconds(300); //线程最大空闲时间
        executor.setThreadNamePrefix("async-executor-"); //指定用于新创建的线程名称的前缀。
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy()); //拒绝策略(一共四种)
        executor.initialize();
        return executor;
    }

    // 异常处理器
    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return new SimpleAsyncUncaughtExceptionHandler();
    }
    
    /**
     * 普通线程池
     * @return
     */
    @Bean("normalTheadPool")
    public Executor getTheadPool() {
    	ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(5); //核心线程数
        executor.setMaxPoolSize(10);  //最大线程数
        executor.setQueueCapacity(50); //队列大小
        executor.setKeepAliveSeconds(300); //线程最大空闲时间
        executor.setThreadNamePrefix("normal-thead-pool-"); //指定用于新创建的线程名称的前缀。
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy()); //拒绝策略
        executor.initialize();
        return executor;
    }
}

//使用方式
@Async
@Override
public void judgeEnd() {
	startJudge();
}
private void startJudge() {
	system.out.println("异步判断")
}

通过统一线程池的配置，利用注入的方式来使用线程池对象。需要注意的是使用@Async注解，必须得满足spring的aop机制。