diff --git a/auth/__init__.py b/auth/__init__.py
new file mode 100644
index 0000000..115a1ef
--- /dev/null
+++ b/auth/__init__.py
@@ -0,0 +1,52 @@
+from pathlib import Path
+from datetime import datetime
+
+from chongming_worker import auto_bind_models
+from chongming_worker.runtime import create_workers as _create_workers
+from chongming_password import hash_password
+
+from .router import *
+
+
+auto_bind_models("auth")
+
+
+async def create_workers(session, config, count=1, worker_manager=None):
+    from chongming_database import Database
+    from .global_var import set_global_var
+    from .models.auth import Users
+    from sqlalchemy import select
+
+    db_path = Path(config.get("data_dir", "./data")) / "auth.db"
+    db = Database(db_path)
+    await db.initialize()
+
+    # 初始化管理员
+    async with db.get_session() as sess:
+        select_stmt = select(Users) \
+            .where(Users.username == "admin") # type: ignore
+        result = await sess.execute(select_stmt)
+        user: Users | None = result.scalar_one_or_none()
+
+        if user is None:
+            user = Users(
+                username="admin",
+                hashed_password=hash_password("admin"),
+                email="admin@example.com",
+                created_at=datetime.now(),
+                updated_at=datetime.now(),
+                is_superuser=True
+            )
+            sess.add(user)
+            await sess.commit()
+    
+    set_global_var("db", db)
+
+    return _create_workers(session, config, count, worker_manager)
+
+async def cleanup(worker_item: str):
+    from .global_var import db
+
+    if db is not None:
+        await db.dispose()
+    print(f"{worker_item} 清理完毕")
\ No newline at end of file
diff --git a/auth/global_var.py b/auth/global_var.py
new file mode 100644
index 0000000..bbdef28
--- /dev/null
+++ b/auth/global_var.py
@@ -0,0 +1,29 @@
+from typing import Any
+
+from chongming_config import get_config
+from chongming_jwt import JWT
+from chongming_database import Database
+from .models import *
+
+def set_global_var(name: str, value: Any) -> None:
+    """
+    设置当前模块的全局变量。
+    
+    Args:
+        name: 变量名（字符串）
+        value: 任意值
+    """
+    globals()[name] = value
+
+config = get_config()
+
+db: Database | None = None
+
+secret = config["security"]["secret_key"]
+algorithm = config["security"]["algorithm"]
+jwt = JWT(secret, algorithm)
+
+__all__ = [
+    "db",
+    "jwt"
+]
\ No newline at end of file
diff --git a/auth/models/__init__.py b/auth/models/__init__.py
new file mode 100644
index 0000000..887b9a9
--- /dev/null
+++ b/auth/models/__init__.py
@@ -0,0 +1,33 @@
+"""
+模型导出 — auth
+自动生成，请勿手动修改
+"""
+
+from .pydantic import AuthResponse
+from .pydantic import ChangePasswordPostRequest
+from .pydantic import ChangePasswordPostResponse
+from .pydantic import LoginPostRequest
+from .pydantic import LoginPostResponse
+from .pydantic import MeGetRequest
+from .pydantic import MeGetResponse
+from .pydantic import RegisterPostRequest
+from .pydantic import RegisterPostResponse
+from .pydantic import UpdateProfilePostRequest
+from .pydantic import UpdateProfilePostResponse
+
+from .auth import Users
+
+__all__ = [
+    "AuthResponse",
+    "ChangePasswordPostRequest",
+    "ChangePasswordPostResponse",
+    "LoginPostRequest",
+    "LoginPostResponse",
+    "MeGetRequest",
+    "MeGetResponse",
+    "RegisterPostRequest",
+    "RegisterPostResponse",
+    "UpdateProfilePostRequest",
+    "UpdateProfilePostResponse",
+    "Users",
+]
diff --git a/auth/models/auth.py b/auth/models/auth.py
new file mode 100644
index 0000000..d92b96a
--- /dev/null
+++ b/auth/models/auth.py
@@ -0,0 +1,102 @@
+import os
+import time
+from typing import Optional
+from datetime import datetime
+from uuid import uuid4
+
+from sqlmodel import Field, SQLModel, Column
+from sqlalchemy import func, DateTime
+
+
+def primary_key_create():
+    return f"{uuid4()}_{os.getpid()}_{int(time.time())}"
+
+
+class Users(SQLModel, table=True):
+    __tablename__ = "users" # type: ignore
+
+    # ---------- 主键 ----------
+    id: str = Field(
+        default_factory=primary_key_create,
+        primary_key=True,
+        index=True,
+        description="用户唯一ID（UUID格式）"
+    )
+
+    # ---------- 登录凭证（唯一索引） ----------
+    username: str = Field(
+        max_length=50,
+        unique=True,
+        index=True,
+        nullable=False,
+        description="登录用户名"
+    )
+    email: str = Field(
+        max_length=255,
+        unique=True,
+        index=True,
+        nullable=False,
+        description="电子邮箱"
+    )
+    hashed_password: str = Field(
+        max_length=255,
+        nullable=False,
+        description="加密后的密码（不存明文）"
+    )
+
+    # ---------- 个人信息（可选） ----------
+    full_name: Optional[str] = Field(
+        default=None,
+        max_length=100,
+        description="用户全名"
+    )
+    avatar_url: Optional[str] = Field(
+        default=None,
+        max_length=500,
+        description="头像图片链接"
+    )
+    phone: Optional[str] = Field(
+        default=None,
+        max_length=20,
+        description="手机号码"
+    )
+
+    # ---------- 安全与状态标识 ----------
+    is_active: bool = Field(
+        default=True,
+        description="账户是否启用（用于软禁用）"
+    )
+    is_verified: bool = Field(
+        default=False,
+        description="邮箱/手机是否已验证"
+    )
+    is_superuser: bool = Field(
+        default=False,
+        description="是否为超级管理员"
+    )
+
+    # ---------- 审计时间戳（数据库自动维护） ----------
+    created_at: datetime = Field(
+        sa_column=Column(
+            DateTime(timezone=True),
+            server_default=func.now(),
+            nullable=False,
+            comment="创建时间"
+        )
+    )
+    updated_at: datetime = Field(
+        sa_column=Column(
+            DateTime(timezone=True),
+            server_default=func.now(),
+            onupdate=func.now(),
+            nullable=False,
+            comment="最后更新时间"
+        )
+    )
+
+    # ---------- 最后登录记录（可选） ----------
+    last_login_at: Optional[datetime] = Field(
+        default=None,
+        sa_column=Column(DateTime(timezone=True), nullable=True),
+        description="最后一次登录时间"
+    )
diff --git a/auth/models/pydantic.py b/auth/models/pydantic.py
new file mode 100644
index 0000000..c8c220b
--- /dev/null
+++ b/auth/models/pydantic.py
@@ -0,0 +1,86 @@
+"""
+自动生成的 Pydantic 模型 — auth
+来源: config/workers/auth/
+"""
+
+from __future__ import annotations
+
+from typing import Any, Optional
+from pydantic import BaseModel, Field
+
+class ChangePasswordPostRequest(BaseModel):
+    """修改密码 — 请求体"""
+    user_id: str = Field(...)
+    old_password: str = Field(...)
+    new_password: str = Field(...)
+
+class ChangePasswordPostResponse(BaseModel):
+    """修改密码 — 响应体"""
+    result: str = Field(...)
+    message: str = Field(...)
+    timestamp: Optional[float] = Field(default=None)
+
+class LoginPostRequest(BaseModel):
+    """登录 — 请求体"""
+    username: str = Field(...)
+    password: str = Field(...)
+
+class LoginPostResponse(BaseModel):
+    """登录 — 响应体"""
+    result: str = Field(...)
+    token: str = Field(...)
+    message: str = Field(...)
+    timestamp: Optional[float] = Field(default=None)
+
+class MeGetRequest(BaseModel):
+    """获取当前用户信息 — 请求体"""
+    user_id: str = Field(...)
+
+class MeGetResponse(BaseModel):
+    """获取当前用户信息 — 响应体"""
+    result: str = Field(...)
+    id: str = Field(...)
+    username: str = Field(...)
+    email: str = Field(...)
+    full_name: Optional[str] = Field(default=None)
+    avatar_url: Optional[str] = Field(default=None)
+    phone: Optional[str] = Field(default=None)
+    is_active: bool = Field(...)
+    is_verified: bool = Field(...)
+    is_superuser: bool = Field(...)
+    created_at: Optional[str] = Field(default=None)
+    updated_at: Optional[str] = Field(default=None)
+    last_login_at: Optional[str] = Field(default=None)
+
+class RegisterPostRequest(BaseModel):
+    """用户注册 — 请求体"""
+    username: str = Field(...)
+    password: str = Field(...)
+    email: str = Field(...)
+    full_name: str = Field(...)
+    phone: str = Field(...)
+
+class RegisterPostResponse(BaseModel):
+    """用户注册 — 响应体"""
+    result: str = Field(...)
+    message: str = Field(...)
+    user_id: Optional[str] = Field(default=None)
+    timestamp: Optional[float] = Field(default=None)
+
+class UpdateProfilePostRequest(BaseModel):
+    """更新用户资料 — 请求体"""
+    user_id: str = Field(...)
+    full_name: str = Field(...)
+    email: str = Field(...)
+    avatar_url: str = Field(...)
+    phone: str = Field(...)
+
+class UpdateProfilePostResponse(BaseModel):
+    """更新用户资料 — 响应体"""
+    result: str = Field(...)
+    message: str = Field(...)
+    timestamp: Optional[float] = Field(default=None)
+
+
+# 所有响应模型的联合类型
+AuthResponse = LoginPostResponse | ChangePasswordPostResponse | MeGetResponse | UpdateProfilePostResponse | RegisterPostResponse
diff --git a/auth/router/__init__.py b/auth/router/__init__.py
new file mode 100644
index 0000000..0eae3fb
--- /dev/null
+++ b/auth/router/__init__.py
@@ -0,0 +1,8 @@
+from .login import login
+from .register import register
+from .me import me
+from .update_profile import update_profile
+from .change_password import change_password
+
+
+__all__ = ["login", "register", "me", "update_profile", "change_password"]
\ No newline at end of file
diff --git a/auth/router/change_password.py b/auth/router/change_password.py
new file mode 100644
index 0000000..98a6216
--- /dev/null
+++ b/auth/router/change_password.py
@@ -0,0 +1,81 @@
+import time
+from datetime import datetime
+
+from sqlalchemy import select
+
+from chongming_worker import rpc_method
+from chongming_password import hash_password, verify_password
+
+from ..models.pydantic import (
+    ChangePasswordPostRequest,
+    ChangePasswordPostResponse
+)
+from ..models.auth import Users
+
+
+@rpc_method(
+    subject="auth.change_password",
+    method="POST",
+    summary="修改密码",
+    response_model=ChangePasswordPostResponse,
+)
+async def change_password(change_password_post_request: ChangePasswordPostRequest) -> ChangePasswordPostResponse:
+    from ..global_var import db
+
+    if db is None:
+        raise RuntimeError("Database not initialized")
+
+    user_id = change_password_post_request.user_id
+    old_password = change_password_post_request.old_password
+    new_password = change_password_post_request.new_password
+
+    if not old_password:
+        return ChangePasswordPostResponse(
+            result="fail",
+            message="旧密码不能为空",
+            timestamp=time.time()
+        )
+    if not new_password:
+        return ChangePasswordPostResponse(
+            result="fail",
+            message="新密码不能为空",
+            timestamp=time.time()
+        )
+    if old_password == new_password:
+        return ChangePasswordPostResponse(
+            result="fail",
+            message="新密码不能与旧密码相同",
+            timestamp=time.time()
+        )
+
+    async with db.get_session() as session:
+        stmt = select(Users).filter_by(id=user_id)
+        result = await session.execute(stmt)
+        user: Users | None = result.scalar_one_or_none()
+
+        if user is None:
+            return ChangePasswordPostResponse(
+                result="fail",
+                message="用户不存在",
+                timestamp=time.time()
+            )
+
+        # 验证旧密码
+        if not verify_password(old_password, user.hashed_password):
+            return ChangePasswordPostResponse(
+                result="fail",
+                message="旧密码错误",
+                timestamp=time.time()
+            )
+
+        # 更新密码
+        user.hashed_password = hash_password(new_password)
+        user.updated_at = datetime.now()
+        session.add(user)
+        await session.commit()
+
+        return ChangePasswordPostResponse(
+            result="success",
+            message="密码修改成功",
+            timestamp=time.time()
+        )
diff --git a/auth/router/login.py b/auth/router/login.py
new file mode 100644
index 0000000..844363f
--- /dev/null
+++ b/auth/router/login.py
@@ -0,0 +1,85 @@
+import time
+from datetime import datetime
+import json
+
+from sqlalchemy import select
+
+from chongming_worker import rpc_method
+from chongming_password import verify_password
+
+from ..models.pydantic import (
+    LoginPostRequest,
+    LoginPostResponse
+)
+from ..models.auth import Users
+
+
+@rpc_method(
+    subject="auth.login",
+    method="POST",
+    summary="登录",
+    response_model=LoginPostResponse,
+)
+async def login(login_post_request: LoginPostRequest) -> LoginPostResponse:
+    from ..global_var import jwt, db
+
+    if db is None:
+        raise RuntimeError("Database not initialized")
+    async with db.get_session() as session:
+        statement = select(Users).filter_by(
+            username=login_post_request.username,
+        )
+        result = await session.execute(statement)
+        user: Users | None = result.scalar_one_or_none()
+
+        if user is None:
+            return LoginPostResponse(
+                result="fail",
+                message="用户名错误",
+                token="",
+                timestamp=time.time()
+            )
+
+        if not verify_password(login_post_request.password, user.hashed_password):
+            return LoginPostResponse(
+                result="fail",
+                message="密码错误",
+                token="",
+                timestamp=time.time()
+            )
+
+        if not user.is_active:
+            return LoginPostResponse(
+                result="fail",
+                message="用户已经注销或被禁用",
+                token="",
+                timestamp=time.time()
+            )
+
+        user.last_login_at = datetime.now()
+
+        payload = {
+            "sub": user.id,
+            "username": user.username,
+            "email": user.email,
+            "full_name": user.full_name,
+            "avatar_url": user.avatar_url,
+            "phone": user.phone,
+            "is_verified": user.is_verified,
+            "is_superuser": user.is_superuser,
+            "created_at": user.created_at.isoformat(),
+            "updated_at": user.updated_at.isoformat(),
+            "last_login_at": user.last_login_at.isoformat()
+        }
+
+        token = jwt.encode(
+            json.dumps(payload), 
+            expires_in_seconds=10800   # 3小时有效期
+        )
+
+        return LoginPostResponse(
+            result="success", 
+            message="登录成功", 
+            token=token, 
+            timestamp=time.time()
+        )
diff --git a/auth/router/me.py b/auth/router/me.py
new file mode 100644
index 0000000..7251a71
--- /dev/null
+++ b/auth/router/me.py
@@ -0,0 +1,56 @@
+import time
+
+from sqlalchemy import select
+
+from chongming_worker import rpc_method
+
+from ..models.pydantic import (
+    MeGetRequest,
+    MeGetResponse
+)
+from ..models.auth import Users
+
+
+@rpc_method(
+    subject="auth.me",
+    method="GET",
+    summary="获取当前用户信息",
+    response_model=MeGetResponse,
+)
+async def me(me_get_request: MeGetRequest) -> MeGetResponse:
+    from ..global_var import db
+
+    if db is None:
+        raise RuntimeError("Database not initialized")
+
+    async with db.get_session() as session:
+        stmt = select(Users).filter_by(id=me_get_request.user_id)
+        result = await session.execute(stmt)
+        user: Users | None = result.scalar_one_or_none()
+
+        if user is None:
+            return MeGetResponse(
+                result="fail",
+                id="",
+                username="",
+                email="",
+                is_active=False,
+                is_verified=False,
+                is_superuser=False,
+            )
+
+        return MeGetResponse(
+            result="success",
+            id=user.id,
+            username=user.username,
+            email=user.email,
+            full_name=user.full_name,
+            avatar_url=user.avatar_url,
+            phone=user.phone,
+            is_active=user.is_active,
+            is_verified=user.is_verified,
+            is_superuser=user.is_superuser,
+            created_at=user.created_at.isoformat() if user.created_at else None,
+            updated_at=user.updated_at.isoformat() if user.updated_at else None,
+            last_login_at=user.last_login_at.isoformat() if user.last_login_at else None,
+        )
diff --git a/auth/router/register.py b/auth/router/register.py
new file mode 100644
index 0000000..8d2fa20
--- /dev/null
+++ b/auth/router/register.py
@@ -0,0 +1,93 @@
+import time
+from datetime import datetime
+
+from sqlalchemy import select
+
+from chongming_worker import rpc_method
+from chongming_password import hash_password
+
+from ..models.pydantic import (
+    RegisterPostRequest,
+    RegisterPostResponse
+)
+from ..models.auth import Users
+
+
+@rpc_method(
+    subject="auth.register",
+    method="POST",
+    summary="用户注册",
+    response_model=RegisterPostResponse,
+)
+async def register(register_post_request: RegisterPostRequest) -> RegisterPostResponse:
+    from ..global_var import db
+
+    if db is None:
+        raise RuntimeError("Database not initialized")
+
+    username = register_post_request.username.strip()
+    email = register_post_request.email.strip()
+    full_name = register_post_request.full_name.strip() or None
+    phone = register_post_request.phone.strip() or None
+
+    # 校验必填字段
+    if not username:
+        return RegisterPostResponse(
+            result="fail",
+            message="用户名不能为空",
+            timestamp=time.time()
+        )
+    if not email:
+        return RegisterPostResponse(
+            result="fail",
+            message="邮箱不能为空",
+            timestamp=time.time()
+        )
+    if not register_post_request.password:
+        return RegisterPostResponse(
+            result="fail",
+            message="密码不能为空",
+            timestamp=time.time()
+        )
+
+    async with db.get_session() as session:
+        # 检查用户名是否已存在
+        stmt = select(Users).filter_by(username=username)
+        result = await session.execute(stmt)
+        if result.scalar_one_or_none() is not None:
+            return RegisterPostResponse(
+                result="fail",
+                message="用户名已存在",
+                timestamp=time.time()
+            )
+
+        # 检查邮箱是否已存在
+        stmt = select(Users).filter_by(email=email)
+        result = await session.execute(stmt)
+        if result.scalar_one_or_none() is not None:
+            return RegisterPostResponse(
+                result="fail",
+                message="邮箱已被注册",
+                timestamp=time.time()
+            )
+
+        # 创建新用户
+        user = Users(
+            username=username,
+            hashed_password=hash_password(register_post_request.password),
+            email=email,
+            full_name=full_name,
+            phone=phone,
+            created_at=datetime.now(),
+            updated_at=datetime.now(),
+        )
+        session.add(user)
+        await session.commit()
+        await session.refresh(user)
+
+        return RegisterPostResponse(
+            result="success",
+            message="注册成功",
+            user_id=user.id,
+            timestamp=time.time()
+        )
diff --git a/auth/router/update_profile.py b/auth/router/update_profile.py
new file mode 100644
index 0000000..fa4b99a
--- /dev/null
+++ b/auth/router/update_profile.py
@@ -0,0 +1,74 @@
+import time
+from datetime import datetime
+
+from sqlalchemy import select
+
+from chongming_worker import rpc_method
+
+from ..models.pydantic import (
+    UpdateProfilePostRequest,
+    UpdateProfilePostResponse
+)
+from ..models.auth import Users
+
+
+@rpc_method(
+    subject="auth.update_profile",
+    method="POST",
+    summary="更新用户资料",
+    response_model=UpdateProfilePostResponse,
+)
+async def update_profile(update_profile_post_request: UpdateProfilePostRequest) -> UpdateProfilePostResponse:
+    from ..global_var import db
+
+    if db is None:
+        raise RuntimeError("Database not initialized")
+
+    user_id = update_profile_post_request.user_id
+
+    async with db.get_session() as session:
+        stmt = select(Users).filter_by(id=user_id)
+        result = await session.execute(stmt)
+        user: Users | None = result.scalar_one_or_none()
+
+        if user is None:
+            return UpdateProfilePostResponse(
+                result="fail",
+                message="用户不存在",
+                timestamp=time.time()
+            )
+
+        # 更新字段（只更新非空值）
+        full_name = update_profile_post_request.full_name.strip()
+        email = update_profile_post_request.email.strip()
+        avatar_url = update_profile_post_request.avatar_url.strip()
+        phone = update_profile_post_request.phone.strip()
+
+        if full_name:
+            user.full_name = full_name
+        if email:
+            # 检查邮箱是否被其他用户占用
+            if email != user.email:
+                check_stmt = select(Users).filter_by(email=email)
+                check_result = await session.execute(check_stmt)
+                if check_result.scalar_one_or_none() is not None:
+                    return UpdateProfilePostResponse(
+                        result="fail",
+                        message="邮箱已被其他用户使用",
+                        timestamp=time.time()
+                    )
+            user.email = email
+        if avatar_url:
+            user.avatar_url = avatar_url
+        if phone:
+            user.phone = phone
+
+        user.updated_at = datetime.now()
+        session.add(user)
+        await session.commit()
+
+        return UpdateProfilePostResponse(
+            result="success",
+            message="资料更新成功",
+            timestamp=time.time()
+        )
diff --git a/example/__init__.py b/example/__init__.py
index 154690d..6771bde 100644
--- a/example/__init__.py
+++ b/example/__init__.py
@@ -15,7 +15,6 @@ Example Worker 插件 — 演示 @rpc_method + 显式模型绑定用法
   - 装饰器 subject 中的操作名 → 模型前缀（驼峰）
     example.add → Add, example.subtract → Subtract
 """
-import modelvault
 from pathlib import Path
 
 from chongming_worker import auto_bind_models
@@ -37,14 +36,19 @@ auto_bind_models("example")
 async def create_workers(session, config, count=1, worker_manager=None):
     """插件入口 — 委托给 chongming_worker 运行时创建 Worker 协程"""
     from .global_var import set_global_var
+    from chongming_database import Database
     
-    db_path = Path(config.get("data_dir", "./data")) / "example.modelvault"
-    db_path.parent.mkdir(parents=True, exist_ok=True)
-    db = await modelvault.AsyncDatabase.open(str(db_path)) # type: ignore
+    db_path = Path(config.get("data_dir", "./data")) / "example.db"
+
+    db = Database(db_path)
+    await db.initialize()
     set_global_var("db", db)
 
     return _create_workers(session, config, count, worker_manager)
 
 async def cleanup(worker_item: str):
-    print(f"{worker_item}关闭")
-    pass
+    from .global_var import db
+
+    if db is not None:
+        await db.dispose()
+    print(f"{worker_item} 清理完毕")
diff --git a/example/global_var.py b/example/global_var.py
index 9b45137..212d3bc 100644
--- a/example/global_var.py
+++ b/example/global_var.py
@@ -1,9 +1,10 @@
-import sys
-from typing import Any, Callable, Awaitable, List
-import modelvault
+from typing import Any
+from .models import *
+from chongming_database import Database
+
+
+db: Database | None = None
 
-# 初始定义（可以保留 db 作为示例）
-db: modelvault.AsyncDatabase | None = None  # type: ignore
 
 def set_global_var(name: str, value: Any) -> None:
     """
@@ -15,10 +16,7 @@ def set_global_var(name: str, value: Any) -> None:
     """
     globals()[name] = value
 
-    
-    
-# 但这样会污染导出列表，不推荐自动添加。
+ 
 __all__ = [
-    "db", 
     "set_global_var",
-]
\ No newline at end of file
+]
diff --git a/example/models/__init__.py b/example/models/__init__.py
index 6860567..6dad973 100644
--- a/example/models/__init__.py
+++ b/example/models/__init__.py
@@ -16,6 +16,8 @@ from .pydantic import MultiplyGetResponse
 from .pydantic import SubtractGetRequest
 from .pydantic import SubtractGetResponse
 
+from .counter import Counter
+
 __all__ = [
     "AddGetRequest",
     "AddGetResponse",
@@ -29,4 +31,5 @@ __all__ = [
     "MultiplyGetResponse",
     "SubtractGetRequest",
     "SubtractGetResponse",
+    "Counter"
 ]
diff --git a/example/models/counter.py b/example/models/counter.py
index 9e6b2e4..34fc786 100644
--- a/example/models/counter.py
+++ b/example/models/counter.py
@@ -1,14 +1,8 @@
-# src/plugins/example/models/counter.py
-from pydantic import BaseModel
-import modelvault
+from sqlmodel import Field, SQLModel
 
-class Counter(BaseModel):
-    # 主键字段
-    __modelvault_primary_key__ = "name"
-    # 唯一索引
-    __modelvault_indexes__ = [
-        modelvault.models.unique("name"),
-    ]
 
-    name: str          # 计数器名称（例如 "visits"）
-    value: int = 0
\ No newline at end of file
+class Counter(SQLModel, table=True):
+    __tablename__ = "counter" # type: ignore
+    name: str = Field(primary_key=True, index=True)
+    value: int = Field(default=0)
+    
\ No newline at end of file
diff --git a/example/router/__init__.py b/example/router/__init__.py
index 087cce9..e6d582e 100644
--- a/example/router/__init__.py
+++ b/example/router/__init__.py
@@ -4,6 +4,7 @@ from .multiply import multiply
 from .divide import divide
 from .count import count_get
 
+
 __all__ = [
     "add", 
     "add_post",
diff --git a/example/router/add.py b/example/router/add.py
index 364c1f9..c93d14c 100644
--- a/example/router/add.py
+++ b/example/router/add.py
@@ -32,8 +32,10 @@ async def add(add_get_request:AddGetRequest) -> AddGetResponse:
     summary="Add two numbers via POST",
     response_model=AddPostResponse,
 )
-async def add_post(add_post_request: AddPostRequest, session: zenoh.Session) -> AddPostResponse:
+async def add_post(add_post_request: AddPostRequest, session: zenoh.Session, user_info: dict | None = None) -> AddPostResponse:
     """加法运算（POST）— 通过 JSON Body 传入 a、b，返回它们的和"""
+    print("----------user_info-----------")
+    print(user_info)
     async with Client(session=session) as client:
         add_result = await client.call(
             worker_type="example",
diff --git a/example/router/count.py b/example/router/count.py
index 92c237c..11b0fdd 100644
--- a/example/router/count.py
+++ b/example/router/count.py
@@ -1,4 +1,4 @@
-import modelvault
+from sqlalchemy import select, update
 
 from chongming_worker import rpc_method
 
@@ -15,19 +15,28 @@ from ..models.counter import Counter
 async def count_get() -> CountGetResponse:
     from ..global_var import db
     
-    # 确保数据库已初始化（如果未初始化，则同步初始化，但这里假设已就绪）
     if db is None:
         raise RuntimeError("Database not initialized")
-
-    counters = modelvault.models.async_collection(db, Counter) # type: ignore
-    async with db.transaction():
-        counter = await counters.get("visits")
+    async with db.get_session() as session:
+        statement = select(Counter).where(Counter.name == "visits") # type: ignore
+        result = await session.execute(statement)
+        counter = result.scalar_one_or_none()
+        
         if counter is None:
-            counter = Counter(name="visits", value=0)
-            await counters.insert(counter)
+            counter = Counter(name="visits", value=1)
+            session.add(counter)
+            await session.commit()
+            return CountGetResponse(name="visits", value=1)
+        
         else:
             new_value = counter.value + 1
-            await counters.update("visits", {"value": new_value})
-            counter.value = new_value  # 更新本地对象以便返回
 
-    return CountGetResponse(name=counter.name, value=counter.value) # type: ignore
+            update_stmt = (
+                update(Counter)
+                .where(Counter.name == "visits") # type: ignore
+                .values(value=new_value)
+            )
+            await session.execute(update_stmt)
+            await session.commit()
+
+            return CountGetResponse(name="visits", value=new_value)
diff --git a/example/router/divide.py b/example/router/divide.py
index 44d136f..b5bb7b0 100644
--- a/example/router/divide.py
+++ b/example/router/divide.py
@@ -26,4 +26,4 @@ async def divide(divide_get_request: DivideGetRequest) -> DivideGetResponse:
         result=divide_get_request.a / divide_get_request.b,
         operation="divide",
         timestamp=time.time(),
-    )
\ No newline at end of file
+    )
diff --git a/example/router/multiply.py b/example/router/multiply.py
index ff082f9..eef9494 100644
--- a/example/router/multiply.py
+++ b/example/router/multiply.py
@@ -19,4 +19,4 @@ async def multiply(multiply_get_request=MultiplyGetRequest) -> MultiplyGetRespon
         result=multiply_get_request.a * multiply_get_request.b,
         operation="multiply",
         timestamp=time.time(),
-    )
\ No newline at end of file
+    )
diff --git a/example/router/subtract.py b/example/router/subtract.py
index 1c8b7fb..b08fe85 100644
--- a/example/router/subtract.py
+++ b/example/router/subtract.py
@@ -19,4 +19,4 @@ async def subtract(subtract_get_request: SubtractGetRequest) -> SubtractGetRespo
         result=subtract_get_request.a - subtract_get_request.b,
         operation="subtract",
         timestamp=time.time(),
-    )
\ No newline at end of file
+    )