.net core使用AutoMapper

AutoMapper文档：http://docs.automapper.org/en/stable/The-MyGet-build.html

新的版本抛弃了静态API方法，我们将使用依赖注入来完成。

①添加包

②创建MyAutoMapper.cs文件来创建实体和Dto之间的映射关系

 public class MyAutoMapper : Profile

    {

        public MyAutoMapper()

        {

            //实体和Dto的相互转化

            CreateMap<PFUserDto, PFUser>().ReverseMap();

        }

}

 /// <summary>

    /// 用户表

    /// </summary>

    [Table("PF_User")]

    public class PFUser

    {

        /// <summary>

        /// 主键

        /// </summary>

        [Column("UserGuid")]

        [Display(Name = "用户表主键", Description = "用户表主键")]

        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]

        public Guid Id { get; set; }

        /// <summary>

        /// 用户名

        /// </summary>

        [Display(Description = "用户名", Name = "用户名")]

        [Column("UserName")]

        [StringLength()]

        public string  UserName { get; set; }

        /// <summary>

        /// 密码

        /// </summary>

        [Display(Description = "密码", Name = "密码")]

        [Column("UserPassWord")]

        [StringLength()]

        public string  UserPassWord { get; set; }

        /// <summary>

        /// 是否删除

        /// </summary>

        [Display(Description = "是否删除", Name = "是否删除")]

        [Column("IsDeleted")]

        public byte?  IsDeleted { get; set; }

        /// <summary>

        /// 创建日期

        /// </summary>

        [Display(Description = "创建日期", Name = "创建日期")]

        [Column("CreateDate")]

        public DateTime?  CreateDate { get; set; }

    }

 public class PFUserDto

    {

        /// <summary>

        /// 主键

        /// </summary>

        [Column("UserGuid")]

        [Display(Name = "用户表主键", Description = "用户表主键")]

        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]

        public Guid Id { get; set; }

        /// <summary>

        /// 用户名

        /// </summary>

        [Display(Description = "用户名", Name = "用户名")]

        [Column("UserName")]

        [StringLength(128)]

        public string UserName { get; set; }

        /// <summary>

        /// 密码

        /// </summary>

        [Display(Description = "密码", Name = "密码")]

        [Column("UserPassWord")]

        [StringLength(256)]

        public string UserPassWord { get; set; }

        /// <summary>

        /// 是否删除

        /// </summary>

        [Display(Description = "是否删除", Name = "是否删除")]

        [Column("IsDelte")]

        public byte? IsDeleted { get; set; }

        /// <summary>

        /// 创建日期

        /// </summary>

        [Display(Description = "创建日期", Name = "创建日期")]

        [Column("CreateDate")]

        public DateTime? CreateDate { get; set; }

        public string MyProperty { get; set; }

    }

③添加服务

④使用：实体转Dto，Dto转实体也是一样的

ProjectTo<>方法：

值的转化，我们想给前端传的时间是字符串形式的，AutoMapper还允许我们自定义转化器来转化我们的数据类型

①创建DateTimeTypeConverter.cs文件

 /// <summary>

    /// DateTime2string

    /// </summary>

    public class DateTimeTypeConverter : ITypeConverter<DateTime, string>

    {

        public string Convert(DateTime source, string destination, ResolutionContext context)

        {

            return source.ToString("yyyy-MM-dd HH:mm:ss");

        }

    }

添加类型映射关系

public class MyAutoMapper : Profile

    {

        public MyAutoMapper()

        {

            //  可以给lambda表达式

            //CreateMap<DateTime, string>().ConvertUsing(x => x.ToString("yyyy-MM-dd HH:mm:ss"));

            //实现接口

            CreateMap<DateTime, string>().ConvertUsing<DateTimeTypeConverter>();

            //实体和Dto的相互转化

            CreateMap<PFUserDto, PFUser>().ReverseMap();

        }

    }

修改我们的Dto CreateDate类型

使用：字符串转时间

时间转字符串

还有别的就自己看文档吧

巴特西

.net core使用AutoMapper

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