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src/main/java/com/newyetai/usercenter/common/threadPools/AsyncExecutorConfig.java

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+package com.newyetai.usercenter.common.threadPools;
+
+
+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.Executor;
+import java.util.concurrent.ThreadPoolExecutor;
+
+
+/**
+ * 外部方法线程池配置
+ *
+ * @author on 2019-11-05
+ */
+@Configuration
+@EnableAsync
+public class AsyncExecutorConfig {
+
+  @Value("${async-executor.core_pool_size:10}")
+  private int corePoolSize;
+  @Value("${async-executor.max_pool_size:50}")
+  private int maxPoolSize;
+  @Value("${async-executor.queue-capacity:1000}")
+  private int queueCapacity;
+  @Value("${async-executor.name-prefix:async-}")
+  private String namePrefix;
+
+
+  @Bean("asyncExecutor")
+  public Executor asyncExecutor() {
+    ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
+    taskExecutor.setCorePoolSize(corePoolSize);// 线程池核心线程数
+    taskExecutor.setMaxPoolSize(maxPoolSize);// 线程池最大线程数
+    taskExecutor.setQueueCapacity(queueCapacity);// 缓冲队列
+    taskExecutor.setThreadNamePrefix(namePrefix);// 线程名称前缀
+    taskExecutor.setKeepAliveSeconds(60);// 线程空闲后的最大存活时间
+    // 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
+    // 对拒绝task的处理策略
+    taskExecutor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
+    // 执行初始化
+    taskExecutor.initialize();
+    return taskExecutor;
+  }
+
+}