首个可运行的版本

backend/app/routers/users.py

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+"""用户路由"""
+
+from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.dependencies import get_db, get_current_user
+from app.models.user import User
+from app.schemas.user import UserRead, UserProfile, UserUpdate, UserSearchResult
+from app.services.user_service import UserService
+
+router = APIRouter()
+
+
+@router.get("/me", response_model=UserRead)
+async def get_me(user: User = Depends(get_current_user)):
+    """获取当前用户信息"""
+    return user
+
+
+@router.put("/me", response_model=UserRead)
+async def update_me(
+    req: UserUpdate,
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """更新当前用户信息"""
+    service = UserService(db)
+    updated = await service.update_profile(user.id, **req.model_dump(exclude_none=True))
+    return updated
+
+
+@router.get("/search", response_model=list[UserSearchResult])
+async def search_users(
+    q: str = Query(..., min_length=1),
+    user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """搜索用户"""
+    service = UserService(db)
+    users = await service.search_users(q, user.id)
+    return users
+
+
+@router.get("/{user_id}", response_model=UserProfile)
+async def get_user(
+    user_id: str,
+    db: AsyncSession = Depends(get_db),
+):
+    """获取用户公开信息"""
+    service = UserService(db)
+    user = await service.get_by_id(user_id)
+    if not user:
+        raise HTTPException(status_code=404, detail="用户不存在")
+    return user