package com.ruoyi.common.security.config;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.scheduling.annotation.AsyncConfigurer;
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import org.springframework.scheduling.annotation.EnableAsync;
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import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
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import java.lang.reflect.Method;
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import java.util.concurrent.Executor;
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import java.util.concurrent.ThreadPoolExecutor;
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/**
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* @ClassName AsyncConfig
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* @Description TODO
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* @Author jqs
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* @Date 2023/6/7 10:46
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* @Version 1.0
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*/
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@Configuration
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@EnableAsync
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@Slf4j
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public class AsyncConfig implements AsyncConfigurer {
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/**
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* 表示线程池核心线程，正常情况下开启的线程数量
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*/
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private Integer corePoolSize = 10;
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/**
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* 如果queueCapacity存满了，还有任务就会启动更多的线程，
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* 直到线程数达到maxPoolSize。如果还有任务，则根据拒绝策略进行处理
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*/
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private Integer maxPoolSize = 100;
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/**
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* 当核心线程都在跑任务，还有多余的任务会存到此处
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*/
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private Integer queueCapacity = 100;
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private Integer keepAliveSeconds = 60;
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private String threadNamePrefix = "async-thread-";
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@Override
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public Executor getAsyncExecutor() {
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ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
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//核心线程池大小
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executor.setCorePoolSize(corePoolSize);
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//最大线程数
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executor.setMaxPoolSize(maxPoolSize);
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//队列容量
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executor.setQueueCapacity(queueCapacity);
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//活跃时间
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executor.setKeepAliveSeconds(keepAliveSeconds);
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//线程名字前缀
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executor.setThreadNamePrefix(threadNamePrefix);
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// setRejectedExecutionHandler：当pool已经达到max size的时候，如何处理新任务
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// CallerRunsPolicy：不在新线程中执行任务，而是由调用者所在的线程来执行
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executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
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executor.initialize();
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return executor;
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}
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/**
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* 异步任务中异常处理
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* @return
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*/
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@Override
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public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
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return new AsyncUncaughtExceptionHandler() {
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@Override
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public void handleUncaughtException(Throwable throwable, Method method, Object... objects) {
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log.info("==================线程发生错误=====================");
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log.error("=========================="+throwable.getMessage()+"=======================", throwable);
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log.error("exception method:"+method.getName());
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}
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};
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}
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}
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