diff --git a/app/controller/add_user_route.py b/app/controller/add_user_route.py
index f3df846..8edd34f 100644
--- a/app/controller/add_user_route.py
+++ b/app/controller/add_user_route.py
@@ -199,20 +199,8 @@ async def get_current_user(session: AsyncSessionDep, token: str):
   except InvalidTokenError:
     raise unauthorized_exception
 
-  user_model = await get_user_by_username(username, session)
+  user_model: UserModel | None = await  UserService.query_item(session, {"username": username, "valid": "Y"})
   if not user_model:
     raise unauthorized_exception
 
-  return PublicUser(**user_model.model_dump())
-
-
-# 根据用户名获取用户信息
-async def get_user_by_username(username: str, session: AsyncSessionDep):
-  query = (
-    select(UserModel)
-    .where(UserModel.username == username)
-    .where(UserModel.valid == UserValidate.Y)
-  )
-  result = await session.execute(query)
-  item_cls: UserModel | None = result.scalars().first()
-  return item_cls
+  return user_model.model_dump(mode="json")
diff --git a/app/middlewares/app_middlewares.py b/app/middlewares/app_middlewares.py
index a0624fe..7c0fc5c 100644
--- a/app/middlewares/app_middlewares.py
+++ b/app/middlewares/app_middlewares.py
@@ -10,7 +10,8 @@ from starlette.responses import JSONResponse
 from app.config.env import env
 from app.controller.add_user_route import unauthorized_exception, get_current_user
 from app.model.ApiSecretModel import ApiSecretService
-from app.model.UserModel import PublicUser
+from app.model.PosModel import PosModel
+from app.model.UserModel import UserServiceModel
 from app.utils.CrpyUtils import TokenInfo, CryptUtils
 from app.utils.api_secret_utils import api_secret_utils, ApiSecretStatus
 from app.utils.db_utils import async_session
@@ -68,8 +69,8 @@ def add_app_middlewares(app: FastAPI):
     async def get_default_cache_value():
       async with async_session() as session:
         try:
-          public_user = await get_current_user(session, token)
-          return public_user.model_dump(mode="json")
+          user_dict = await get_current_user(session, token)
+          return user_dict
         except InvalidTokenError:
           return None
 
@@ -80,7 +81,11 @@ def add_app_middlewares(app: FastAPI):
     if not user_dict:
       raise unauthorized_exception
 
-    request.state.user = PublicUser(**user_dict)
+    print("user_dict", user_dict)
+    request.state.user = UserServiceModel(**user_dict)
+    user_pos_dict = user_dict.get('pos')
+    if user_pos_dict:
+      request.state.user.position = PosModel(**user_pos_dict)
     request.state.token = token
 
     # 如果请求的是api接口
diff --git a/app/model/BasicModel.py b/app/model/BasicModel.py
index b984f93..0a83fb0 100644
--- a/app/model/BasicModel.py
+++ b/app/model/BasicModel.py
@@ -28,9 +28,9 @@ class BasicModel(SQLModel):
     # 定义datetime和date类型的JSON编码器，将其格式化为指定字符串
     json_encoders = {
       # 若为datetime类型，格式化为“年-月-日 时:分:秒”，若为None则保持None
-      datetime: lambda dt: dt.strftime("%Y-%m-%d %H:%M:%S") if dt is not None else None,
+      datetime: lambda dt: dt if isinstance(dt, str) else dt.strftime("%Y-%m-%d %H:%M:%S") if dt is not None else None,
       # 若为date类型，格式化为“年-月-日”，若为None则保持None
-      date: lambda dt: dt.strftime("%Y-%m-%d") if dt is not None else None
+      date: lambda dt: dt if isinstance(dt, str) else dt.strftime("%Y-%m-%d") if dt is not None else None
     }
 
   # 定义模型验证器，在数据解析前（mode='before'）执行，用于处理字符串格式的日期时间
diff --git a/app/utils/redis_utils.py b/app/utils/redis_utils.py
index 282b308..ad184af 100644
--- a/app/utils/redis_utils.py
+++ b/app/utils/redis_utils.py
@@ -1,3 +1,4 @@
+import json
 import uuid
 from contextlib import asynccontextmanager
 from typing import Annotated, AsyncContextManager
@@ -68,16 +69,17 @@ RedisClientDep = Annotated[redis.Redis, Depends(get_redis_client)]
 # 从redis中获取key的缓存，如果没有值则执行默认值获取函数，并保存到redis中
 async def get_redis_cache(key: str, default_value_getter):
   async with redis_utils.get_redis_connection() as redis_client:
-    mapping = await redis_client.hgetall(key)
-    exists = bool(mapping)
+    # default_value_getter返回的字段可能嵌套多层对象，这里改成用json字符串缓存
+    json_string = await redis_client.get(key)
+    exists = bool(json_string)
     if exists:
-      return mapping
+      return json.loads(json_string)
     else:
       value = await default_value_getter()
       print("value", value)
       if value is not None:
         new_value = {k: v for k, v in value.items() if v is not None}
-        await redis_client.hset(key, mapping=new_value)
+        await redis_client.set(key, json.dumps(new_value, ensure_ascii=False))
       return value