diff --git a/utils/mqttUtil.js b/utils/mqttUtil.js
index bbded71..5a0e71e 100644
--- a/utils/mqttUtil.js
+++ b/utils/mqttUtil.js
@@ -106,12 +106,14 @@ class MqttUtil {
 		this.client.on("connect", error => {
 			this.connected = this.client.connected && !this.client.reconnecting;
 			this.reconnectCount = 0;
-			console.log("消息连接成功:", this.client)
+			console.log("connect:", this.client)
+			console.log("connect:", this.connected)
 		})
 		this.client.on("reconnect", error => {
 			this.connected = this.client.connected && !this.client.reconnecting;
 			this.reconnectCount++;
-			console.log(`消息重连中${this.reconnectCount}`, this.client)
+			console.log("reconnect:", this.client)
+			console.log(`reconnect_${this.reconnectCount}:`, this.connected)
 		})
 		this.client.on("error", error => {
 			console.log("error", error)
@@ -121,7 +123,7 @@ class MqttUtil {
 			console.log("message：", message.toString())
 			this.onEventHandler(topic, message);
 		})
-		this.client.on("close", function() {
+		this.client.on("close", () => {
 			console.log("已断开连接1")
 			this.client = null;
 			this.connected = false;
@@ -133,8 +135,12 @@ class MqttUtil {
 		this.client.end(false, null, () => {});
 	}
 	//订阅主题
-	subscribes(topic) {
-		this.client.subscribe(topic, error => {
+	subscribes(topics) {
+		if (!this.client || !this.connected) {
+			return;
+		}
+		console.log("subscribes", topics)
+		this.client.subscribe(topics, error => {
 			if (error) {
 				console.log(`订阅主题失败:`, error)
 			} else {
@@ -143,8 +149,12 @@ class MqttUtil {
 		})
 	}
 	//取消订阅
-	unsubscribes(topic) {
-		this.client.unsubscribe(topic, error => {
+	unsubscribes(topics) {
+		if (!this.client || !this.connected) {
+			return;
+		}
+		console.log("unsubscribes", topics)
+		this.client.unsubscribe(topics, error => {
 			if (!error) {
 				console.log("取消订阅成功")
 			} else {
@@ -169,36 +179,44 @@ class MqttUtil {
 		// 先连接mqtt
 		connect(this.options, (res) => {
 			console.log("connect：", res);
-			if (res.code == 200) {
-				this.connected = isConnected();
-				this.reconnectCount = 0;
-				console.log("连接成功:", this.connected)
-			}
+			// if (res.code == 200) {}
+			this.connected = isConnected();
+			this.reconnectCount = 0;
+			console.log("connect:", this.connected)
 		})
 		// 监听连接丢失函数
 		onConnectLost((res) => {
-			console.log("连接丢失的原因：", res);
-			this.connected = false;
+			console.log("onConnectLost：", res);
+			this.connected = isConnected();
+			console.log("onConnectLost:", this.connected)
 		})
 		// 监听自动重新连接函数
 		onReconnect((res) => {
-			console.log("消息重连中：", res);
-			// this.connected = this.client.connected && !this.client.reconnecting;
+			console.log("onReconnect：", res);
 			this.connected = isConnected();
 			this.reconnectCount++;
-			console.log(`消息重连中${this.reconnectCount}:`, this.connected)
+			console.log("onConnectLost_${this.reconnectCount}:", this.connected)
 		})
 	}
 	//结束链接
 	over() {
+		if (!isConnected()) {
+			return;
+		}
 		disConnect((res) => {
 			console.log("接受消息:", res)
-			this.connected = isConnected();
-			this.reconnectCount = 0;
+			if (res.code == 200) {
+				this.reconnectCount = 0;
+				this.connected = isConnected();
+			}
 		})
 	}
 	//订阅主题
 	subscribes(topics) {
+		if (!isConnected()) {
+			return;
+		}
+		console.log("subscribes", topics)
 		if (topics && topics.length) {
 			topics.forEach(x => {
 				subscribe(x, 0, (res) => {
@@ -211,6 +229,10 @@ class MqttUtil {
 	}
 	//取消订阅
 	unsubscribes(topics) {
+		if (!isConnected()) {
+			return;
+		}
+		console.log("unsubscribes", topics)
 		if (topics && topics.length) {
 			topics.forEach(x => {
 				unSubscribe(x, (res) => {})