.net5 使用AutoMapper

步骤1：项目引用AutoMapperAutoMapper.Extensions.Microsoft.DependencyInjection

步骤2：建立文件 DevProCommonFileIProfile：是一个空接口，主要用来动态加载文件时查找相关文件，也就时说DevProCommonFile这种文件可以建立多个，只要继承Profile, IProfile就会被框架加入using AutoMapper;using Dev.WooNet.Model.DevDTO;using Dev.WooNet.Model.Models;using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace Dev.WooNet.AutoMapper.ProFiles{    /// <summary>    /// 公共映射文件    /// </summary>    public class DevProCommonFile : Profile, IProfile    {        public DevProCommonFile()        {            CreateMap<DepartData, DevDepartment>();          //.ForMember(a => a.ContId, opt => opt.Ignore())          //.ForMember(a => a.CreateUserId, opt => opt.Ignore())          //.ForMember(a => a.CreateDateTime, opt => opt.Ignore())          //.ForMember(a => a.ModifyUserId, opt => opt.Ignore())          //.ForMember(a => a.ModifyDateTime, opt => opt.Ignore());        }           }}步骤3：设置加载文件规则建立Mappings 定一个扩展方法AddDevMapperFilesusing AutoMapper;using Microsoft.Extensions.DependencyInjection;using System;using System.Collections.Generic;using System.Linq;using System.Reflection;using System.Text;using System.Threading.Tasks;namespace Dev.WooNet.AutoMapper.Extend{   public static class Mappings    {              /// <summary>        ///映射文件        /// </summary>        /// <param name="service"></param>        public static void AddDevMapperFiles(this IServiceCollection service)        {            var allType =          Assembly             .GetEntryAssembly()//获取默认程序集             .GetReferencedAssemblies()//获取所有引用程序集             .Select(Assembly.Load)             .SelectMany(y => y.DefinedTypes)             .Where(type => typeof(IProfile).GetTypeInfo().IsAssignableFrom(type.AsType()));            service.AddAutoMapper(allType.ToArray());                    }    }}步骤4：Startup 的ConfigureServices进行注册services.AddDevMapperFiles();（上面扩展方法）步骤5：应用 在控制器注入 IMapperprivate IMapper _IMapper { get; set; }然后 var deptinfo = _IMapper.Map<DevDepartment>(departData);这样就完成了AutoMapper使用