实体框架返回不需要的输出SELECT 1 AS [C1]

Question

规格： MySQL.Data 8.0.11 .Net 4.6 EF 6.2 使用ASP身份

案例1

这是我试图实现的，我已经在Auto Mapper中将DTO映射到了正确的表格。我在asp.net Identity创建的“Manage”控制器中添加了这段代码。这没有用，所以我试着用案例2进行试验。现在这个代码确实返回了数据，当我试图将这个代码粘贴到另一个不直接相关的控制器中时。

public IEnumerable<GetAddressDto> GetAllAddresses()
        {
            //var user = UserManager.FindById(User.Identity.GetUserId());
            //var customer = _context.Customer.SingleOrDefault(c => c.ApplicationUser.Id == user.Id);
            var Obj = (from custaddr in _context.CustomerAddress
                       where custaddr.Customer.CustomerId == 1
                       select new GetAddressDto
                       {
                            AddressId = custaddr.AddressId,
                            AddressLine1 = custaddr.AddressLine1,
                            AddressLine2 = custaddr.AddressLine2,
                            Circle = custaddr.Circle,
                            City = custaddr.City,
                            Landmark = custaddr.Landmark,
                            IsPrimaryAddress = custaddr.IsPrimaryAddress,
                            Pincode = custaddr.Pincode,
                            IsActive = custaddr.IsActive,
                            IsDeleted = custaddr.IsDeleted,
                            IsDev = custaddr.IsDev
                       });
            var Obj2 = _context.CustomerAddress.ToList();
            return Obj;
        }

输出

SELECT 1 AS [C1], [Extent1].[AddressId] AS [AddressId], [Extent1].[AddressLine1] AS [AddressLine1], [Extent1].[AddressLine2] AS [AddressLine2], [Extent1].[Circle] AS [Circle], [Extent1].[City] AS [City], [Extent1].[Landmark] AS [Landmark], [Extent1].[IsPrimaryAddress] AS [IsPrimaryAddress], [Extent1].[Pincode] AS [Pincode], [Extent1].[IsActive] AS [IsActive], [Extent1].[IsDeleted] AS [IsDeleted], [Extent1].[IsDev] AS [IsDev] FROM [dbo].[CustomerAddresses] AS [Extent1] WHERE 1 = [Extent1].[Customer_CustomerId]

案例2：

这是另一个实验，当DTO方式无效时，我试图做的事情。

public List<CustomerAddress> GetAllAddresses() {
            //var user = UserManager.FindById(User.Identity.GetUserId());
            //var customer = _context.Customer.SingleOrDefault(c => c.ApplicationUser.Id == user.Id);
            /*var Obj = (from custaddr in _context.CustomerAddress
                       //where custaddr.Customer.CustomerId == 1 
                       select new GetAddressDto
                       {
                            AddressId = custaddr.AddressId,
                            AddressLine1 = custaddr.AddressLine1,
                            AddressLine2 = custaddr.AddressLine2,
                            Circle = custaddr.Circle,
                            City = custaddr.City,
                            Landmark = custaddr.Landmark,
                            IsPrimaryAddress = custaddr.IsPrimaryAddress,
                            Pincode = custaddr.Pincode,
                            IsActive = custaddr.IsActive,
                            IsDeleted = custaddr.IsDeleted,
                            IsDev = custaddr.IsDev
                       });*/
            var Obj2 = _context.CustomerAddress.ToList();
            return Obj2;
        }

输出

System.Collections.Generic.List`1[sp_pocketefarms_web.Models.CustomerAddress]

我无法理解为什么会这样，请帮忙。