第一、新建类库，以解决方案名XXX为例，建立子类库名为 XXX.AutoMapper。
第二、 XXX.AutoMapper类库中，添加对automap的引用。
第三、创建映射文件类 ModelProfile，继承Profile
codes:
---------------------------------------------
namespace BCMS.AutoMapper.Profiles
{
???public class ModelProfile : Profile
???{
???????public ModelProfile()
???????{
//配置相关映射
//eg
CreateMap<BaseUserEntity, BaseUserModel>()
????????????????.ForMember(model => model.StaffName, entity => entity.Ignore())
????????????????.ForMember(model => model.StaffNo, entity => entity.Ignore())
????????????????.ForMember(model => model.LocationTypeName, entity => entity.Ignore())
????????????????.ForMember(model => model.IsADLoginName, entity => entity.Ignore())
????????????????.ForMember(model => model.TypeName, entity => entity.Ignore())
????????????????.ForMember(model => model.BaseUserRoles, (map) => map.MapFrom(m => m.BaseUserRoles));
???????????CreateMap<BaseUserModel, BaseUserEntity>()
???????????????.ForMember(model => model.BaseUserRoles, (map) => map.MapFrom(m => m.BaseUserRoles));
//................................
}}}//end
-----------------------------------------------------------------------------
第四、在类库名为 XXX.AutoMapper的类库中创建Configuration类（如果有就不用创建）把映射类ModelProfile 配置进去。
codes:
----------------------------------------------------------------
namespace BCMS.AutoMapper
{
???public class Configuration
???{
???????public static void Configure()
???????{
???????????Mapper.Initialize(cfg => { cfg.AddProfile<ModelProfile>(); });//增加对 ModelProfile的初始化
???????????Mapper.AssertConfigurationIsValid();
???????}
???}
}
---------------------------------------------------------------------
第五、应用 automap。
把原生的automap进行扩展，封装。
创建一个XXX.Util类库，添加对 XXX.AutoMapper的引用。
创建静态的扩展类，public static class AutoMapperExtensions
codes:
-------------------------------
public static class AutoMapperExtensions
???{
???????public static T ToModel<T>(this object entity)
???????{
???????????return Mapper.Map<T>(entity);
???????}
???????public static T ToEntity<T>(this object viewModel)
???????{
???????????if (viewModel == null)
???????????????return default(T);
???????????return Mapper.Map<T>(viewModel);
???????}
???????public static IEnumerable<T> ToModelList<T>(this IEnumerable entityList)
???????{
???????????if (entityList == null)
???????????????return null;
???????????return (from object entity in entityList select entity.ToModel<T>()).ToList();
???????}
???}
-------------------------------------------------
在Service层使用的时候，添加对XXX.Util类库的引用就可以了。
使用eg:
1.Model=>Entity
ProductModel editViewModel =new ProductModel (){Name ="AAAA"};
var entity = editViewModel.ToEntity<ProductEntity>();//转换为Entity
2.集合间转换。
IEnumerable<TargetMarketEntity> entitys = _targetMarketRepository.GetList(new { LocationTypeId = LocationTypeId });
IEnumerable<TargetMarketModel> models =entitys .ToModelList<TargetMarketModel>();
asp.netMVC中配置automap
原文地址：http://www.cnblogs.com/Tom-yi/p/7451849.html