spring-boot多线程并发执行任务

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使用步骤

1.config文件

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package com.cooker.lottery_system.common.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.ThreadPoolExecutor;


@Configuration
@EnableAsync
public class ExecutorConfig {
    @Value("${async.executor.thread.core_pool_size}")
    private int corePoolSize;
    @Value("${async.executor.thread.max_pool_size}")
    private int maxPoolSize;
    @Value("${async.executor.thread.queue_capacity}")
    private int queueCapacity;
    @Value("${async.executor.thread.name.prefix}")
    private String namePrefix;


    @Bean(name = "asyncServiceExecutor")
    public ThreadPoolTaskExecutor asyncServiceExecutor(){
        ThreadPoolTaskExecutor threadPoolTaskExecutor = new
                ThreadPoolTaskExecutor();
        threadPoolTaskExecutor.setCorePoolSize(corePoolSize);
        threadPoolTaskExecutor.setMaxPoolSize(maxPoolSize);
        threadPoolTaskExecutor.setQueueCapacity(queueCapacity);
        threadPoolTaskExecutor.setKeepAliveSeconds(3);
        threadPoolTaskExecutor.setThreadNamePrefix(namePrefix);
        // rejection-policy：当pool已经达到max size的时候，如何处理新任务
        // CALLER_RUNS：不在新线程中执⾏任务，⽽是由调⽤者所在的线程来执⾏
        threadPoolTaskExecutor.setRejectedExecutionHandler(new
                ThreadPoolExecutor.AbortPolicy());
        //加载
        threadPoolTaskExecutor.initialize();
        return threadPoolTaskExecutor;
    }
}

2、application.properties

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## 线程池 ##
async.executor.thread.core_pool_size=10
async.executor.thread.max_pool_size=20
async.executor.thread.queue_capacity=20
async.executor.thread.name.prefix=async-service-

3、对象注入

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@Autowired
    private ThreadPoolTaskExecutor threadPoolTaskExecutor;

4、并行执行

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// 短信通知
        threadPoolTaskExecutor.execute(()->sendMessage(winningRecordDOList));
        // 邮件通知
        threadPoolTaskExecutor.execute(()->sendMail(winningRecordDOList));