feat: 分页加载和用户编码

1. 前端List.jsx: 实现分页加载，每次50条，滚动到底部自动加载更多
2. 后端auth.py: 注册时自动生成用户编码(0001开始)
3. 模型schemas: 添加user_code字段

backend/app/models/models.py

@@ -16,6 +16,7 @@ class User(Base):
 
     # f99 系统字段
     f99_90_id = Column(String(36), primary_key=True, default=generate_uuid)
+    user_code = Column(String(10), unique=True, nullable=True, index=True)  # 用户编码
     f99_91_user_id = Column(String(36), unique=True, nullable=False, index=True)
     f01_01_name = Column(String(255), unique=True, nullable=False, index=True)  # username
     email = Column(String(255), unique=True, nullable=True, index=True)

backend/app/routers/auth.py

@@ -10,6 +10,20 @@ from app.schemas.schemas import Token, UserCreate, UserResponse
 router = APIRouter(prefix="/api/auth", tags=["认证"])
 
 
+
+
+def generate_user_code(db):
+    """生成用户编码，从0001开始"""
+    # 查找最大的user_code
+    max_code = db.query(User.user_code).filter(User.user_code != None).order_by(User.user_code.desc()).first()
+    if max_code and max_code[0]:
+        try:
+            num = int(max_code[0]) + 1
+            return f"{num:04d}"
+        except:
+            pass
+    return "0001"
+
 @router.post("/register", response_model=UserResponse)
 def register(user_data: UserCreate, db: Session = Depends(get_db)):
     """用户注册"""
@@ -35,7 +49,8 @@ def register(user_data: UserCreate, db: Session = Depends(get_db)):
     hashed_password = get_password_hash(user_data.password)
     user = User(
         f99_90_id=str(uuid.uuid4()),
-        f99_91_user_id=str(uuid.uuid4()),  # 生成唯一 user_id
+        f99_91_user_id=str(uuid.uuid4()),
+        user_code=generate_user_code(db),
         f01_01_name=user_data.f01_01_name,
         email=user_data.email,
         phone=user_data.phone,

backend/app/schemas/schemas.py

@@ -37,6 +37,7 @@ class UserResponse(UserBase):
     f99_90_id: str = Field(..., alias="id")
     f01_01_name: str = Field(..., alias="username")
     role: str
+    user_code: Optional[str] = None
     f99_92_created_at: Optional[datetime] = Field(None, alias="created_at")
     f99_93_updated_at: Optional[datetime] = Field(None, alias="updated_at")
 

frontend/src/pages/List.jsx

@@ -15,6 +15,9 @@ export default function List() {
   const [key, setKey] = useState(0)
   const [search, setSearch] = useState('')
   const [isAdmin, setIsAdmin] = useState(false)
+  const [page, setPage] = useState(1)
+  const [hasMore, setHasMore] = useState(true)
+  const [initialLoad, setInitialLoad] = useState(true)
 
   useEffect(() => {
     // 检查是否管理员
@@ -46,7 +49,19 @@ export default function List() {
         setFilter('')
         setFilterType('')
       }
-      fetchCollections()
+      // 滚动加载更多
+    const handleScroll = () => {
+      if (loading || !hasMore) return
+      const scrollTop = window.scrollY || document.documentElement.scrollTop
+      const scrollHeight = document.documentElement.scrollHeight
+      const clientHeight = document.documentElement.clientHeight
+      if (scrollTop + clientHeight >= scrollHeight - 100) {
+        fetchCollections(true)
+      }
+    }
+    
+    window.addEventListener('scroll', handleScroll)
+    return () => window.removeEventListener('scroll', handleScroll)
     }
     
     handleHashChange()
@@ -59,11 +74,21 @@ export default function List() {
     }
   }, [])
 
-  const fetchCollections = async () => {
-    setLoading(true)
+  const fetchCollections = async (reset = false) => {
     const token = localStorage.getItem('token')
+    const currentPage = reset ? 1 : page
+    
     try {
-      const res = await fetch('/api/collections?limit=100', {
+      if (reset) {
+        setCollections([])
+        setPage(1)
+        setLoading(true)
+        setInitialLoad(true)
+      } else {
+        setLoading(true)
+      }
+      
+      const res = await fetch(`/api/collections?page=${currentPage}&limit=50`, {
         headers: token ? { 'Authorization': 'Bearer ' + token } : {}
       })
       
@@ -82,6 +107,18 @@ export default function List() {
         list = list.items
       }
       
+      // 分页处理
+      if (reset) {
+        setCollections(list || [])
+      } else {
+        setCollections(prev => [...prev, ...(list || [])])
+      }
+      
+      // 判断是否还有更多数据
+      const receivedCount = list ? list.length : 0
+      setHasMore(receivedCount >= 50)
+      if (!initialLoad) setPage(prev => prev + 1)
+      
       // 应用筛选条件
       // 用户ID筛选（从URL获取）
       if (userIdFilter) {