关于配置执行定时任务和异步任务的线程池配置类

package com.liftsail.rsademo.utils;

import lombok.extern.slf4j.Slf4j;
import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.TaskScheduler;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;
import org.springframework.scheduling.config.Task;

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

/**
 * @Author 张帆
 * @Description 不积跬步无以至千里
 * @Date 2022/11/23 20:50
 */
@Configuration
@Slf4j
public class ThreadPoolConfig implements AsyncConfigurer, SchedulingConfigurer {

    /**
     * 异步任务执行线程池参数
     */
    private static final Integer CORE_POOL_SIZE = 5;
    private static final Integer MAX_POOL_SIZE = 200;
    private static final Integer QUEUE_CAPACITY = 2000;
    private static final String THREAD_NAME_PREFIX = "async-thread-";
    private static final Integer KEEP_ALIVE_SECONDS = 60;

    /**
     * 定时任务线程池线程名前缀
     */
    private static final String SCHEDULER_THEREAD_NAME_PREFIX = "task-";

    /**
     * @param
     * @description: 创建执行spring task定时任务的线程池，调用@scheduled注解的定时任务
     * @author: xiaomifeng1010
     * @date: 2022/3/13
     * @return: TaskScheduler
     **/
    @Bean
    public ThreadPoolTaskScheduler threadPoolTaskScheduler() {
        ThreadPoolTaskScheduler threadPoolTaskScheduler = new ThreadPoolTaskScheduler();
        threadPoolTaskScheduler.setPoolSize(10);
        threadPoolTaskScheduler.setThreadNamePrefix(SCHEDULER_THEREAD_NAME_PREFIX);
        threadPoolTaskScheduler.setWaitForTasksToCompleteOnShutdown(true);
        return threadPoolTaskScheduler;
    }

    /**
     * @param
     * @description: 创建执行异步任务的线程池，用于调用 @async注解的方法
     * @author: xiaomifeng1010
     * @date: 2022/3/13
     * @return: ThreadPoolTaskExecutor
     **/
    @Bean("asyncThreadPoolTaskExecutor")
    public ThreadPoolTaskExecutor asyncThreadPoolTaskExecutor() {
        ThreadPoolTaskExecutor threadPoolTaskExecutor = new ThreadPoolTaskExecutor();
        // 核心线程数量
        threadPoolTaskExecutor.setCorePoolSize(CORE_POOL_SIZE);
        // 最大线程数量
        threadPoolTaskExecutor.setMaxPoolSize(MAX_POOL_SIZE);
        // 队列中最大任务数
        threadPoolTaskExecutor.setQueueCapacity(QUEUE_CAPACITY);
        // 线程名称前缀
        threadPoolTaskExecutor.setThreadNamePrefix(THREAD_NAME_PREFIX);
        // 当达到最大线程数时如何处理新任务（拒绝策略）
        threadPoolTaskExecutor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        // 线程空闲后最大存活时间
        threadPoolTaskExecutor.setKeepAliveSeconds(KEEP_ALIVE_SECONDS);
        // 初始化线程池
        threadPoolTaskExecutor.initialize();
        // 关闭线程池
        threadPoolTaskExecutor.setWaitForTasksToCompleteOnShutdown(true);
        return threadPoolTaskExecutor;
    }

    /**
     * Callback allowing a {@link TaskScheduler
     * TaskScheduler} and specific {@link Task Task}
     * instances to be registered against the given the {@link ScheduledTaskRegistrar}.
     *
     * @param taskRegistrar the registrar to be configured.
     */
    @Override
    public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
        taskRegistrar.setTaskScheduler(threadPoolTaskScheduler());
    }

    /**
     * The {@link Executor} instance to be used when processing async
     * method invocations.
     */
    @Override
    public Executor getAsyncExecutor() {
        return asyncThreadPoolTaskExecutor();
    }

    /**
     * The {@link AsyncUncaughtExceptionHandler} instance to be used
     * when an exception is thrown during an asynchronous method execution
     * with {@code void} return type.
     */
    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return (throwable, method, objects) -> {
            log.error("异步任务执行出现异常, message {}, method {}, params {}", throwable, method, objects);
        };
    }
}

原文地址：http://www.cnblogs.com/liftsail/p/16919761.html