更新！

src/main/java/com/github/microservice/deviceTopicConfig/IotTopIcConfig.java

@@ -13,4 +13,6 @@ public class IotTopIcConfig {
     // 物模型属性值更新 topic
     public static final String iotPropertyUpdateTopIc = "/page/fresh/property/%s";
 
+    //设备在线状态发生变化 topic
+    public static final String deviceOnLineChange = "/page/device/online/%s";
 }