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package com.yihu.jw.care.config;
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import org.apache.tomcat.util.threads.ThreadPoolExecutor;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
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import java.util.concurrent.Executor;
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/**
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* Created with IntelliJ IDEA.
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*
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* @Author: yeshijie
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* @Date: 2021/4/30
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* @Description: 异步线程配置
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*/
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@Configuration
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public class AsyncConfig {
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@Bean
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public Executor taskExecutor() {
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ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
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executor.setCorePoolSize(5); // 设置核心线程数
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executor.setMaxPoolSize(20); // 设置最大线程数
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executor.setQueueCapacity(200); // 设置队列容量
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executor.setKeepAliveSeconds(60); // 设置线程活跃时间（秒）
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executor.setThreadNamePrefix("user-device-"); // 设置默认线程名称
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// rejection-policy：当pool已经达到max size的时候，如何处理新任务
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// CALLER_RUNS：不在新线程中执行任务，而是有调用者所在的线程来执行
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executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());// 设置拒绝策略
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executor.setWaitForTasksToCompleteOnShutdown(true); // 等待所有任务结束后再关闭线程池
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executor.initialize();
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return executor;
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}
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}
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