添加102联机记录

utils/mqtt.js

@@ -281,7 +281,36 @@ class MqttClient {
 		}
 	}
 
-	publish(topic, message,retained) {
+	async publish(topic, message,retained) {
+		let getLan=()=>{
+			return new Promise((succ,error)=>{
+				uni.getNetworkType({
+				success: (res) => {
+					let networkType = res.networkType;					
+					// 判断网络是否连接
+					if (networkType === 'none') {
+						console.error('无网络连接')					
+							succ(false);					
+					} else {					
+							succ(true);									
+					}
+				},
+				fail: (err) => {
+					console.error('获取网络状态失败：', err);
+				
+						succ(false);
+				
+				}
+			});
+			});
+			
+		}
+		
+		let flag=await getLan();
+		if(!flag){
+			
+			return false;
+		}
 		if (this.client && this.client.isConnected()) {
 			const mqttMessage = new Paho.Message(message);
 			mqttMessage.destinationName = topic;