diff --git a/MQTT.py b/MQTT.py
index c4f215e..099ffd0 100644
--- a/MQTT.py
+++ b/MQTT.py
@@ -1,4 +1,4 @@
-import json
+
 import time
 
 import paho.mqtt.client as mqtt
diff --git a/tool.py b/tool.py
index fc00d5e..14fe518 100755
--- a/tool.py
+++ b/tool.py
@@ -92,19 +92,25 @@ def reload(client):
 
 
 def get_list_record(client):
-    data = {
-        "data": os.listdir(mp4_path)
-    }
-    r = requests.post(post_record_list_url, json=data)
-    client.publish(info_topic, payload=publish_payload(code=200, msg=str(r)), qos=0)
+    try:
+        data = {
+            "data": os.listdir(mp4_path)
+        }
+        r = requests.post(post_record_list_url, json=data)
+        client.publish(info_topic, payload=publish_payload(code=200, msg=str(r)), qos=0)
+    except:
+        pass
 
 
 def get_record(msg, client):
-    filename = json.loads(msg.payload.decode('utf-8'))["data"]
-    if filename is None or filename == '':
-        client.publish(info_topic, payload=publish_payload(code=404, msg='没有该文件'), qos=0)
-        return
+    try:
+        filename = json.loads(msg.payload.decode('utf-8'))["data"]
+        if filename is None or filename == '':
+            client.publish(info_topic, payload=publish_payload(code=404, msg='没有该文件'), qos=0)
+            return
 
-    files = {filename: open(os.path.join(mp4_path, filename), 'rb'), "Content-Type": "application/octet-stream"}
-    r = requests.post(post_record_url, files=files)
-    client.publish(info_topic, payload=publish_payload(code=200, msg=str(r)), qos=0)
+        files = {filename: open(os.path.join(mp4_path, filename), 'rb'), "Content-Type": "application/octet-stream"}
+        r = requests.post(post_record_url, files=files)
+        client.publish(info_topic, payload=publish_payload(code=200, msg=str(r)), qos=0)
+    except:
+        pass