后端开发完成

backend/create_admin.py

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+import os
+from sqlalchemy.orm import Session
+from app.database.database import get_db, engine, Base
+from app.models.user import User
+
+# 设置测试环境变量
+os.environ["TESTING"] = "True"
+
+# 创建所有表
+Base.metadata.create_all(bind=engine)
+
+# 获取数据库会话
+db = next(get_db())
+
+# 检查是否已经存在 admin 用户
+existing_admin = db.query(User).filter(User.username == "admin").first()
+if not existing_admin:
+    # 创建 admin 用户，使用明文密码
+    admin_user = User(
+        username="admin",
+        password="admin",
+        department="IT",
+        role="admin"
+    )
+    db.add(admin_user)
+    db.commit()
+    print("Admin user created successfully!")
+else:
+    print("Admin user already exists!")
+
+# 关闭数据库会话
+db.close()