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backend/app/routes/user_routes.py

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+from flask import Blueprint, request
+from flask_jwt_extended import jwt_required
+
+from app.extensions import db
+from app.models import User
+from app.utils.auth import current_user
+from app.utils.response import fail, ok
+
+
+user_bp = Blueprint("user", __name__)
+
+
+@user_bp.get("/profile")
+@jwt_required()
+def get_profile():
+    user = current_user()
+    if not user:
+        return fail("用户不存在", 404)
+    return ok(user.to_dict())
+
+
+@user_bp.put("/profile")
+@jwt_required()
+def update_profile():
+    user = current_user()
+    if not user:
+        return fail("用户不存在", 404)
+
+    payload = request.get_json(silent=True) or {}
+    if "nickname" in payload:
+        user.nickname = (payload.get("nickname") or user.nickname).strip() or user.nickname
+    if "company" in payload:
+        user.company = (payload.get("company") or "").strip()
+    if "title" in payload:
+        user.title = (payload.get("title") or "").strip()
+    if "phone" in payload:
+        user.phone = (payload.get("phone") or "").strip()
+
+    new_password = payload.get("password")
+    if new_password:
+        if len(new_password) < 6:
+            return fail("新密码至少6位", 400)
+        user.set_password(new_password)
+
+    db.session.commit()
+    return ok(user.to_dict(), "个人信息更新成功")
+
+
+@user_bp.get("/search")
+@jwt_required()
+def search_users():
+    keyword = (request.args.get("keyword") or "").strip()
+    if not keyword:
+        return ok([])
+
+    users = (
+        User.query.filter(User.username.like(f"%{keyword}%") | User.nickname.like(f"%{keyword}%"))
+        .order_by(User.id.desc())
+        .limit(20)
+        .all()
+    )
+    return ok([item.to_dict() for item in users])