diff --git a/README.md b/README.md
index d4df76b..d175ac3 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,7 @@ docker run -d -p 6666:6666 m986883511/extract_subtitles
 
 后端接口容器地址[Docker Hub](https://hub.docker.com/repository/docker/m986883511/extract_subtitles)
 
-此过程可能时间较长，您需要预先安装好好docker，并配置好docker加速器
+此过程可能时间较长，您需要预先安装好好docker，并配置好docker加速器，你可能需要先docker login
 
 ```shell
 docker run -d -p 6666:6666 m986883511/extract_subtitles
diff --git a/config.json b/config.json
new file mode 100644
index 0000000..8cf93fc
--- /dev/null
+++ b/config.json
@@ -0,0 +1,4 @@
+{
+  "ip": "127.0.0.1",
+  "port": "6666"
+}
diff --git a/image/2-run-exe.png b/image/2-run-exe.png
index e6d3762..ba5ccff 100644
Binary files a/image/2-run-exe.png and b/image/2-run-exe.png differ
diff --git a/interface.py b/interface.py
index fc4d427..8694803 100644
--- a/interface.py
+++ b/interface.py
@@ -1,5 +1,5 @@
+import json
 import os
-
 import requests
 from requests_toolbelt.multipart.encoder import MultipartEncoder
 
@@ -10,11 +10,22 @@ class ExtractSubtitleApi:
     debug = True
 
     def __init__(self):
-        self.ip = ExtractSubtitleApi.ip
-        self.port = ExtractSubtitleApi.port
+        self.set_ip_port()
         self.headers = {'content-type': 'application/json'}
         self.print_flag = True
 
+    def set_ip_port(self):
+        try:
+            with open(os.path.join(os.path.dirname(__file__), 'config.json')) as f:
+                content = f.read()
+            content = json.loads(content)
+            self.ip = content['ip']
+            self.port = content['port']
+        except Exception as e:
+            print('read config.json failed, err={}'.format(e))
+            self.ip = ExtractSubtitleApi.ip
+            self.port = ExtractSubtitleApi.port
+
     @property
     def base_url(self):
         return "http://{}:{}".format(self.ip, self.port)
@@ -22,7 +33,7 @@ def base_url(self):
     def text_recognition(self, base64_img):
         url = '{}/text_recognition'.format(self.base_url)
         data = {"image": [base64_img]}
-        res = requests.post(url,  data=data)
+        res = requests.post(url, data=data)
         return self.deal_with_response(res)
 
     def extract_human_voice_from_sound(self, local_mp3_filepath):
@@ -43,6 +54,7 @@ def get_human_voice_time_point(self, remote_wav_filename):
         return self.deal_with_response(res)
 
     def detect_recognition_model(self):
+        self.set_ip_port()
         url = '{}/load_model'.format(self.base_url)
         response = requests.get(url, headers=self.headers)
         return self.deal_with_response(response)
diff --git a/main.py b/main.py
index 5a2a33e..1593723 100644
--- a/main.py
+++ b/main.py
@@ -6,7 +6,7 @@
 import base64
 
 current_dir = os.path.dirname(__file__)
-sys.path.append(os.path.join(current_dir, 'ffmpeg'))
+os.environ['PATH'] += ';' + os.path.join(current_dir, 'ffmpeg')
 
 import cv2
 import srt
@@ -340,15 +340,16 @@ def __deal_with_process_output_string(self, input_str):
 
     def test_connect_api(self):
         self.add_log('开始测试api接口是否连通')
-        value = self.api_interface.detect_recognition_model()
-        if isinstance(value, dict) and value.get('result') == 'load model success':
-            msg = '文字识别API接口已连通:{}'.format(self.api_interface.base_url)
-            self.add_log(msg)
+        try:
+            value = self.api_interface.detect_recognition_model()
+            if isinstance(value, dict) and value.get('result') == 'load model success':
+                msg = '文字识别API接口已连通:{}'.format(self.api_interface.base_url)
+                self.add_log(msg)
+                self.connect_api_lineedit.setText(msg)
+        except Exception as e:
+            msg = '无法连接文字识别API接口，检查容器状态后重试'
+            self.add_log('{}, err={}'.format(msg, e))
             self.connect_api_lineedit.setText(msg)
-            return
-        msg = '无法连接文字识别API接口'
-        self.add_log(msg)
-        self.connect_api_lineedit.setText(msg)
 
     def update_progress_bar(self, progress):
         self.extract_progress.setValue(progress)