优化登录

app/api/users/login_verification.py

@@ -17,7 +17,11 @@ def get_user(db, username: str):
     :param username: 用户名
     :return: 返回一个用户的BaseModel(其实就是字典的BaseModel对象,二者可互相转换)
     """
-    return db.query(users.User).filter(users.User.username == username).first()
+    try:
+        result = db.query(users.User).filter(users.User.username == username).first()
+    except Exception as e:
+        result = db.query(users.User).filter(users.User.username == username).first()
+    return result
 
 
 def create_access_token(data: dict, expires_delta: Optional[timedelta] = None):