updated README and database test procedure

README.md

@@ -176,8 +176,7 @@ sed -i 's/127.0.0.1/192.168.0.2/g' myems-normalization/.env
 **3.3** 测试数据库是否可以正确连接
 ```
 cd myems
-cp myems-api/.env database/
-python3 database/test_mysql.py
+python3 myems-api/test_mysql.py
 ```
 注：如果测试通过，继续下一步操作，否则请修改.env配置。
 

myems-api/test_mysql.py

@@ -1,21 +1,13 @@
 import mysql.connector
-from decouple import config
+import config
 
 
 if __name__ == "__main__":
 
-    myems_system_db = {
-        'host': config('MYEMS_SYSTEM_DB_HOST', default='127.0.0.1'),
-        'port': config('MYEMS_SYSTEM_DB_PORT', default=3306, cast=int),
-        'database': config('MYEMS_SYSTEM_DB_DATABASE', default='myems_system_db'),
-        'user': config('MYEMS_SYSTEM_DB_USER', default='root'),
-        'password': config('MYEMS_SYSTEM_DB_PASSWORD', default='!MyEMS1'),
-    }
-
     cursor = None
     cnx = None
     try:
-        cnx = mysql.connector.connect(**myems_system_db)
+        cnx = mysql.connector.connect(**config.myems_system_db)
         cursor = cnx.cursor()
 
         query = (" SELECT version "