数据库模型类名修改以及文件名修改

PythonProject/dao/student_dao.py

@@ -1,2 +1,20 @@
-from model import student_model
+from fastapi import HTTPException,Depends
+from util.database import get_db
+from model.student_model import Student_Model
+
+
+def select_age(min_age,max_age,session=Depends(get_db)):
+    try:
+        if min_age is None and max_age is None:
+            raise HTTPException(status_code=400, detail="请至少传入一个参数")
+        session = session.query(Student_Model)
+        if min_age is not None:
+            session = session.filter(Student_Model.age >= min_age)
+        if max_age is not None:
+            session = session.filter(Student_Model.age <= max_age)
+        return session.all()
+    except HTTPException:
+        raise
+    except Exception:
+        raise HTTPException(status_code=500,detail="查询异常")