多线程以及异步线程

package com.example.redistest.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.*;

/**
 * @ Description:  配置可定长线程数 
 * @ Author     :daizy
 * @ CreateDate : 2021-12-01$ $
 * @ Version    :1.0
 */
@Configuration
@EnableAsync
@EnableScheduling
@Slf4j
public class AsyncConfiguration implements AsyncConfigurer{
    @Bean(name = "taskExecutor")
    public ThreadPoolTaskExecutor getThreadExecutor() {
        ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
        int i = Runtime.getRuntime().availableProcessors();//获取到服务器的cpu内核
        log.info("cpu内核:{}",i);
        taskExecutor.setCorePoolSize(20);//核心池大小
        taskExecutor.setMaxPoolSize(50);//最大线程数
        taskExecutor.setQueueCapacity(100);//队列程度
        taskExecutor.setKeepAliveSeconds(10);//线程空闲时间
        taskExecutor.setThreadNamePrefix("task");//线程前缀名称
        taskExecutor.setRejectedExecutionHandler(new ThreadPoolExecutor.AbortPolicy());//配置拒绝策略
        return taskExecutor;
    }
    @Bean("asyExecutor")//异步线程
    public Executor getAsyExecutor(){
        ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
        taskExecutor.setCorePoolSize(2);//核心池大小
        taskExecutor.setMaxPoolSize(3);//最大线程数
        taskExecutor.setQueueCapacity(1);//队列程度
        taskExecutor.setKeepAliveSeconds(10);//线程空闲时间
        taskExecutor.setThreadNamePrefix("asy");//线程前缀名称
        taskExecutor.setRejectedExecutionHandler(new ThreadPoolExecutor.AbortPolicy());//配置拒绝策略
        return taskExecutor;
    }

}