public async Task <IActionResult> UpdateClassroom(int id, [FromBody] ModifyClassroom modifyClassroom) { if (modifyClassroom == null) { return(BadRequest()); } if (!ModelState.IsValid) { return(BadRequest(ModelState)); } var cls = await _classroomService.GetTById(id); if (cls == null) { return(NotFound()); } if (cls.Name != modifyClassroom.Name) { var cls1 = await _classroomService.GetClassroomsByClassName(modifyClassroom.Name); if (cls1.Count > 0) { return(BadRequest("教室名称已存在")); } } if (cls.ClassRoomNum != modifyClassroom.ClassRoomNum) { var cls2 = await _classroomService.GetClassroomsByClassNum(modifyClassroom.ClassRoomNum); if (cls2.Count > 0) { return(BadRequest("教室编号已存在")); } } cls.Name = modifyClassroom.Name; cls.ClassRoomNum = modifyClassroom.ClassRoomNum; cls.Address = modifyClassroom.Address; _mapper.Map(cls, cls); if (!await _classroomService.Save()) { return(StatusCode(500, "更新数据时出错")); } return(Created("", modifyClassroom)); }