Merge pull request #847 from xu-bin-bin/wvp-28181-2.0

"@schedule"是Spring框架提供的一种定时任务执行机制，默认情况下它是单线程执行，将其修改为支持多线程。

src/main/java/com/genersoft/iot/vmp/conf/ScheduleConfig.java

@@ -0,0 +1,30 @@
+package com.genersoft.iot.vmp.conf;
+
+import org.apache.commons.lang3.concurrent.BasicThreadFactory;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.annotation.SchedulingConfigurer;
+import org.springframework.scheduling.config.ScheduledTaskRegistrar;
+
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.ThreadPoolExecutor;
+
+/**
+ * "@Scheduled"是Spring框架提供的一种定时任务执行机制，默认情况下它是单线程的，在同时执行多个定时任务时可能会出现阻塞和性能问题。
+ * 为了解决这种单线程瓶颈问题，可以将定时任务的执行机制改为支持多线程
+ */
+@Configuration
+public class ScheduleConfig implements SchedulingConfigurer {
+
+	public static final int cpuNum = Runtime.getRuntime().availableProcessors();
+
+	private static final int corePoolSize = cpuNum;
+
+	private static final String threadNamePrefix = "scheduled-task-pool-%d";
+
+	@Override
+	public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
+		taskRegistrar.setScheduler(new ScheduledThreadPoolExecutor(corePoolSize,
+				new BasicThreadFactory.Builder().namingPattern(threadNamePrefix).daemon(true).build(),
+				new ThreadPoolExecutor.CallerRunsPolicy()));
+	}
+}