diff --git a/MQTT.py b/MQTT.py
index 4c6b778..b439058 100644
--- a/MQTT.py
+++ b/MQTT.py
@@ -33,6 +33,7 @@ class MQTTClient:
         self.username = username
         self.password = password
         self.client = mqtt.Client(client_id=device_name)
+        self.client.username_pw_set(self.username, self.password)
         self.client.on_connect = self.on_connect
         self.client.on_message = self.on_message
 
@@ -76,19 +77,19 @@ class MQTTClient:
             pass
 
     def start(self):
-        self.client.username_pw_set(self.username, self.password)
+
         self.client.connect(self.broker, self.port)
 
 
 if __name__ == '__main__':
-    broker = config.get("broker", "host")
-    # 这里必须是int类型
-    port = config.getint("broker", "port")
-    topic = config.get("topic", "name")
-    username = config.get("security", "username")
-    password = config.get("security", "password")
-    print(broker, port, topic, username, password)
-    MQTT = MQTTClient(broker, port, topic, username, password)
+    # broker = config.get("broker", "host")
+    # # 这里必须是int类型
+    # port = config.getint("broker", "port")
+    # topic = config.get("topic", "name")
+    # username = config.get("security", "username")
+    # password = config.get("security", "password")
+    # print(broker, port, topic, username, password)
+    MQTT = MQTTClient("192.168.1.27", 1883, "lot_mqtt", "demo", "123456")
     while True:
         try:
             MQTT.start()
diff --git a/conf/main/config.conf b/conf/main/config.conf
index 3e7bb4d..9df52e9 100644
--- a/conf/main/config.conf
+++ b/conf/main/config.conf
@@ -1,5 +1,5 @@
 [broker]
-host=192.168.1.27
+host=ceshi-mqtt.lihaink.cn
 port=1883
 [topic]
 name=lot_mqtt
diff --git a/data_upload.py b/data_upload.py
index 2895826..261f54b 100644
--- a/data_upload.py
+++ b/data_upload.py
@@ -38,13 +38,13 @@ class DataUploadClient:
 
 
 if __name__ == '__main__':
-    broker = config.get("broker", "host")
-    # 这里必须是int类型
-    port = config.getint("broker", "port")
-    topic = config.get("topic", "name")
-    username = config.get("security", "username")
-    password = config.get("security", "password")
-    MQTT = DataUploadClient(broker, port, topic, username, password)
+    # broker = config.get("broker", "host")
+    # # 这里必须是int类型
+    # port = config.getint("broker", "port")
+    # topic = config.get("topic", "name")
+    # username = config.get("security", "username")
+    # password = config.get("security", "password")
+    MQTT = DataUploadClient("192.168.1.27", 1883, "lot_mqt", "demo", "123456")
     while True:
         try:
             MQTT.start()
diff --git a/sensor_to_server.py b/sensor_to_server.py
index 7e1c3c8..35bf889 100755
--- a/sensor_to_server.py
+++ b/sensor_to_server.py
@@ -236,17 +236,17 @@ def on_connect(client, userdata, flags, rc):
 
 
 if __name__ == '__main__':
-    config = configparser.ConfigParser()
-    config.read('/home/pi/lot_manager/conf/main/config.conf')
-    broker = config.get("broker", "host")
-    # 这里必须是int类型
-    port = config.getint("broker", "port")
-    username = config.get("security", "username")
-    password = config.get("security", "password")
+    # config = configparser.ConfigParser()
+    # config.read('/home/pi/lot_manager/conf/main/config.conf')
+    # broker = config.get("broker", "host")
+    # # 这里必须是int类型
+    # port = config.getint("broker", "port")
+    # username = config.get("security", "username")
+    # password = config.get("security", "password")
     client = mqtt.Client(client_id=device_name)
-    client.username_pw_set(username, password)
+    client.username_pw_set("demo", "123456")
     # Specify callback function
     client.on_connect = on_connect
     # Establish a connection
-    client.connect(broker, port)
+    client.connect("192.168.1.27", 1883)
     client.loop_forever()