yinruoxi:

修改：
    1.mqtt消息topic临时测试方案

xueyi-modules/xueyi-message/src/main/java/com/xueyi/message/handler/MqttMessageHandle.java

@@ -55,7 +55,7 @@ public class MqttMessageHandle implements IMqttMessageHandler {
     public void getMqttTopicService(Message<?> message){
         // 在这里 我们根据不同的 主题 分发不同的消息
         String receivedTopic = message.getHeaders().get("mqtt_receivedTopic",String.class);
-        log.info("receivedTopic="+receivedTopic + " message="+message.getPayload());
+        log.info("receivedTopic = {},message = {}", receivedTopic ,message.getPayload());
         if(receivedTopic==null || "".equals(receivedTopic)){
             return;
         }