初始化线程池

@Configuration
public class SpringAsyncConfig implements AsyncConfigurer {
    /**
     * 核心线程数
     */
    private int corePoolSize = 20;
    /**
     * 最大线程数
     */
    private int maximumPoolSize = 1000;
    /**
     * 线程空闲时间
     */
    private int keepAliveTime = 60;
    /**
     * 阻塞队列容量
     */
    private int queueCapacity = 9999;
    /**
     * 构建线程工厂
     */
    @Override
    @Bean("asyncExecutor")
    public Executor getAsyncExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(corePoolSize);
        executor.setMaxPoolSize(maximumPoolSize);
        executor.setKeepAliveSeconds(keepAliveTime);
        executor.setQueueCapacity(queueCapacity);
        executor.setThreadNamePrefix("TreadName:hik:");
        executor.setRejectedExecutionHandler((Runnable r,ThreadPoolExecutor exe) -> {
            log.warn("当前任务线程池队列已满.");
        });
        executor.initialize();
        return executor;
    }

    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return new AsyncUncaughtExceptionHandler() {
            @Override
            public void handleUncaughtException(Throwable ex, Method method, Object... params) {
                log.error("线程池执行任务发生未知异常：", ex);
            }
        };
    }
}

线程池使用

@Async(“asyncExecutor”)