map映射

using System;
using AutoMapper;
using System.Collections;
using System.Collections.Generic;

namespace Infrastructure
{
public static class AutoMapperExt
{
/// <summary>
/// 类型映射
/// </summary>
public static T MapTo<T>(this object obj)
{
if (obj == null) return default(T);

var config = new MapperConfiguration(cfg=>cfg.CreateMap(obj.GetType(),typeof(T)));
var mapper = config.CreateMapper();
return mapper.Map<T>(obj);
}

/// <summary>
/// 集合列表类型映射
/// </summary>
public static List<TDestination> MapToList<TDestination>(this IEnumerable source)
{
Type sourceType = source.GetType().GetGenericArguments()[0]; //获取枚举的成员类型
var config = new MapperConfiguration(cfg => cfg.CreateMap(sourceType, typeof(TDestination)));
var mapper = config.CreateMapper();

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

/// <summary>
/// 集合列表类型映射
/// </summary>
public static List<TDestination> MapToList<TSource, TDestination>(this IEnumerable<TSource> source)
{
var config = new MapperConfiguration(cfg => cfg.CreateMap(typeof(TSource), typeof(TDestination)));
var mapper = config.CreateMapper();

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

/// <summary>
/// 类型映射
/// </summary>
public static TDestination MapTo<TSource, TDestination>(this TSource source, TDestination destination)
where TSource : class
where TDestination : class
{
if (source == null) return destination;

var config = new MapperConfiguration(cfg => cfg.CreateMap(typeof(TSource), typeof(TDestination)));
var mapper = config.CreateMapper();
return mapper.Map<TDestination>(source);
}

}
}