AutoMapper 笔记1

AutoMapper 9.0版本

vs2019

引用包

AutoMapper 9.0

AutoMapper.Extensions.Microsoft.DependencyInjection 7.0

准备

数据实体类

    public class User
    {
        public string Name { get; set; }
    }


    public class UserDto
    {
        public string Name { get; set; }
    }

profile配置

    public class UserProfile : Profile, IProfile
    {
        public UserProfile()
        {
            CreateMap<UserDto, User>();
            CreateMap<User, UserDto>();
        }
    }

这里的 IProfile 接口，给批量注册用

    public interface IProfile
    {
    }

配置注册

            //方式一：单个注册
            services.AddAutoMapper(typeof(UserProfile));
            //方式二：多个注册
            services.AddAutoMapper(typeof(UserProfile), typeof(UserProfile));

            //方式三：批量注册，继承接口IProfile
            services.AddAutoMapper(typeof(IProfile));

静态方法

public static class AutoMapperHelper
    {
        private static IServiceProvider ServiceProvider;
        public static void UseStateAutoMapper(this IApplicationBuilder applicationBuilder)
        {
            ServiceProvider = applicationBuilder.ApplicationServices;
        }

        public static TDestination Map<TDestination>(object source)
        {
            var mapper = ServiceProvider.GetRequiredService<IMapper>();
            return mapper.Map<TDestination>(source);
        }

        public static TDestination Map<TSource, TDestination>(TSource source)
        {
            var mapper = ServiceProvider.GetRequiredService<IMapper>();

            return mapper.Map<TSource, TDestination>(source);
        }

        public static TDestination MapTo<TSource, TDestination>(this TSource source)
        {
            var mapper = ServiceProvider.GetRequiredService<IMapper>();
            return mapper.Map<TSource, TDestination>(source);
        }

        public static TDestination MapTo<TDestination>(this object source)
        {
            var mapper = ServiceProvider.GetRequiredService<IMapper>();
            return mapper.Map<TDestination>(source);
        }

        public static List<TDestination> MapToList<TDestination>(this IEnumerable source)
        {
            var mapper = ServiceProvider.GetRequiredService<IMapper>();
            return mapper.Map<List<TDestination>>(source);
        }


        public static List<TDestination> MapToList<TSource, TDestination>(this IEnumerable<TSource> source)
        {
            var mapper = ServiceProvider.GetRequiredService<IMapper>();
            return mapper.Map<List<TDestination>>(source);
        }
    }

配置静态方法

app.UseStateAutoMapper();

使用

User user = new User() { Name = "delafqm" };
return user.MapTo<UserDto>();

List<User> users = new List<User>() {
    new User(){ Name="delafqm1" },
    new User(){ Name="delafqm2" },
    new User(){ Name="delafqm3" }
};

return users.MapToList<UserDto>();

结尾

简单可用配置，其它配置未设置

参考：

https://blog.csdn.net/raphaelhe/article/details/103076371

https://www.cnblogs.com/NCoreCoder/p/11359294.html