为什么使用AutoMapper-Toy模板网

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为什么使用AutoMapper,.net core,c#,automapper

using AutoMapper;
using Zrj.TryUseAutoMapper.Model.Entity;
using Zrj.TryUseAutoMapper.Model.DTO;
using Zrj.TryUseAutoMapper.Model.CustomerProfile;

namespace TryUseAutoMapper
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello, World!");

            #region 概念
            /*
             * 为什么使用AutoMapper
             * 当后端的实体类/模型和前端要求有出入/有些字段不方便带到前端时,解耦分离
             */
            #endregion

            /*当只转换少数类的写法*/
            {
                var mapperConfiguration = new MapperConfiguration(cfg =>
                {
                    cfg.CreateMap<Orders, DTO_Orders>();
                });

                var mapper = mapperConfiguration.CreateMapper(); /*等同于*/ //IMapper mapper = mapperConfiguration.CreateMapper();
                DTO_Orders orders = mapper.Map<Orders, DTO_Orders>(new Orders()
                {
                    CustomerId = 1,
                    CustomerEmail = "*****@163.com",
                    OrderMoney = 1_000_000
                });

                /*
                 * 无法获取到 orders.OrderMoney  
                 */
                Console.WriteLine(orders.CustomerEmail);
            }

            /*
             * 当转换部分的写法
             */
            {

                var mapperConfiguration = new MapperConfiguration(cfg =>
                {
                    //cfg.CreateMap<Orders, DTO_Orders>();
                    cfg.AddProfile<CustomerProfile>();
                });

                var mapper = mapperConfiguration.CreateMapper(); /*等同于*/ //IMapper mapper = mapperConfiguration.CreateMapper();
                DTO_Orders orders = mapper.Map<Orders, DTO_Orders>(new Orders()
                {
                    CustomerId = 1,
                    CustomerEmail = "*****@163.com",
                    OrderMoney = 1_000_000
                });

                /*
                 * 无法获取到 orders.OrderMoney  
                 */
                Console.WriteLine(orders.CustomerEmail);
            }

            Console.ReadKey();

        }

    }
}

类库
为什么使用AutoMapper,.net core,c#,automapper 文章来源地址https://www.toymoban.com/news/detail-627107.html

namespace Zrj.TryUseAutoMapper.Model.Entity
{
    public class Orders
    {
        public string Order { get; set; } = string.Empty;
        public int CustomerId { get; set; }
        public string CustomerName { get; set; } = string.Empty;
        public string CustomerEmail { get; set; } = string.Empty;
        public string CustomerPhone { get; set; } = string.Empty;
        public string CustomerCity { get; set; } = string.Empty;
        public string CustomerRegion { get; set; } = string.Empty;
        public string CustomerPostalCode { get; set; } = string.Empty;
        public string CustomerCountry { get; set; } = string.Empty;
        public string CustomerState { get; set; } = string.Empty;
        public decimal OrderMoney { get; set; }

    }
}

namespace Zrj.TryUseAutoMapper.Model.DTO
{
    public class DTO_Orders
    {
        public string Order { get; set; } = string.Empty;
        public string CustomerId { get; set; } = string.Empty;
        public string CustomerName { get; set; } = string.Empty;
        public string CustomerEmail { get; set; } = string.Empty;
        public string CustomerPhone { get; set; } = string.Empty;
        public string CustomerCity { get; set; } = string.Empty;
        public string CustomerRegion { get; set; } = string.Empty;
        public string CustomerPostalCode { get; set; } = string.Empty;
        public string CustomerCountry { get; set; } = string.Empty;
        public string CustomerState { get; set; } = string.Empty;

    }
}

using AutoMapper;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using Zrj.TryUseAutoMapper.Model.DTO;
using Zrj.TryUseAutoMapper.Model.Entity;

namespace Zrj.TryUseAutoMapper.Model.CustomerProfile
{
    public class CustomerProfile : Profile
    {
        public CustomerProfile()
        {

            base.CreateMap<Orders, DTO_Orders>();
            /*以此类推*/
            //base.CreateMap<Orders, DTO_Orders>();

        }

    }
}