feat:添加rabbitmq配置（是否启用RabbitMQ）

ktg-mes/src/main/java/com/ktg/mes/rabbitmq/DirectQueueHandler.java

@@ -3,6 +3,7 @@ package com.ktg.mes.rabbitmq;
 import com.ktg.mes.websocket.MesWebSocket;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.amqp.rabbit.annotation.RabbitListener;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.stereotype.Component;
 
 /**
@@ -12,6 +13,7 @@ import org.springframework.stereotype.Component;
  */
 @Slf4j
 @Component
+@ConditionalOnProperty(prefix = "spring.rabbitmq", name = "enabled", havingValue = "true")
 public class DirectQueueHandler {
 
     @RabbitListener(queues = "iot.original.mes")