From 2e98b20bea4463e4465e3c19059d0744a09aec06 Mon Sep 17 00:00:00 2001
From: zhongrj <646384940@qq.com>
Date: Tue, 27 Jun 2023 14:34:41 +0800
Subject: [PATCH] gb28181版本升级-补充
---
src/main/java/com/genersoft/iot/vmp/conf/ThreadPoolTaskConfig.java | 68 ++++++++++++++++++++++++++++++++++
1 files changed, 68 insertions(+), 0 deletions(-)
diff --git a/src/main/java/com/genersoft/iot/vmp/conf/ThreadPoolTaskConfig.java b/src/main/java/com/genersoft/iot/vmp/conf/ThreadPoolTaskConfig.java
new file mode 100644
index 0000000..7377702
--- /dev/null
+++ b/src/main/java/com/genersoft/iot/vmp/conf/ThreadPoolTaskConfig.java
@@ -0,0 +1,68 @@
+package com.genersoft.iot.vmp.conf;
+
+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;
+
+/**
+ * ThreadPoolTask 配置类
+ * @author lin
+ */
+@Configuration
+@EnableAsync(proxyTargetClass = true)
+public class ThreadPoolTaskConfig {
+
+ public static final int cpuNum = Runtime.getRuntime().availableProcessors();
+
+ /**
+ * 默认情况下，在创建了线程池后，线程池中的线程数为0，当有任务来之后，就会创建一个线程去执行任务，
+ * 当线程池中的线程数目达到corePoolSize后，就会把到达的任务放到缓存队列当中；
+ * 当队列满了，就继续创建线程，当线程数量大于等于maxPoolSize后，开始使用拒绝策略拒绝
+ */
+
+ /**
+ * 核心线程数（默认线程数）
+ */
+ private static final int corePoolSize = cpuNum;
+ /**
+ * 最大线程数
+ */
+ private static final int maxPoolSize = cpuNum*2;
+ /**
+ * 允许线程空闲时间（单位：默认为秒）
+ */
+ private static final int keepAliveTime = 30;
+
+ /**
+ * 缓冲队列大小
+ */
+ private static final int queueCapacity = 10000;
+ /**
+ * 线程池名前缀
+ */
+ private static final String threadNamePrefix = "wvp-";
+
+ /**
+ *
+ * @return
+ */
+ @Bean("taskExecutor") // bean的名称，默认为首字母小写的方法名
+ public ThreadPoolTaskExecutor taskExecutor() {
+ ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
+ executor.setCorePoolSize(corePoolSize);
+ executor.setMaxPoolSize(maxPoolSize);
+ executor.setQueueCapacity(queueCapacity);
+ executor.setKeepAliveSeconds(keepAliveTime);
+ executor.setThreadNamePrefix(threadNamePrefix);
+
+ // 线程池对拒绝任务的处理策略
+ // CallerRunsPolicy：由调用线程（提交任务的线程）处理该任务
+ executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
+ // 初始化
+ executor.initialize();
+ return executor;
+ }
+}
--
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