在客户端上自动生成代码后，缺少类型映射配置或不支持的映射

本文关键字：映射 类型 配置 不支持 客户端 自动生成 代码 | 更新日期: 2023-09-27 18:25:11

我有一个简单的类：

[DataContract]
public class ClaimView
{
    [DataMember]
    public string Type { get; set; }
    [DataMember]
    public string Value { get; set; }
    [DataMember]
    public string ValueType { get; set; }
}

我在客户端通过wcf服务器引用接收此类，并尝试将其映射到System.Security.Claims.Claim，如下所示：

    Mapper.CreateMap<ClaimView, Claim>()
      .ForMember(dest => dest.Type, opt => opt.MapFrom(src => src.Type)) 
      .ForMember(dest => dest.Value, opt => opt.MapFrom(src=> src.Value))
      .ForMember(dest => dest.ValueType, opt => opt.MapFrom(src => src.ValueType))
      .ForMember(dest => dest.Issuer, opt => opt.Ignore())
      .ForMember(dest => dest.OriginalIssuer, opt => opt.Ignore())
      .ForMember(dest => dest.Properties, opt => opt.Ignore())
      .ForMember(dest => dest.Subject, opt => opt.Ignore());

在我从autommaper那里得到错误后，他无法将其转换。缺少什么或出了什么问题？

在客户端上自动生成代码后，缺少类型映射配置或不支持的映射

因为Claim没有默认构造函数，所以您需要告诉Automapper要使用哪个构造函数，例如：

  Mapper.CreateMap<ClaimView, Claim>()
        .ConstructUsing(cv => new Claim(cv.Type, cv.Value, cv.ValueType))
        .ForMember(dest => dest.Type, opt => opt.MapFrom(src => src.Type))
        .ForMember(dest => dest.Value, opt => opt.MapFrom(src => src.Value))
        .ForMember(dest => dest.ValueType, opt => opt.MapFrom(src => src.ValueType))
        .ForMember(dest => dest.Issuer, opt => opt.Ignore())
        .ForMember(dest => dest.OriginalIssuer, opt => opt.Ignore())
        .ForMember(dest => dest.Properties, opt => opt.Ignore())
        .ForMember(dest => dest.Subject, opt => opt.Ignore());

然后此测试将通过：

public void Test()
{
     ClaimIdentityView civ = new ClaimIdentityView
     {
         ClaimViewList = new List<ClaimView> 
                             {
                                 new ClaimView 
                                 {
                                      Type = "type", 
                                      Value = "val", 
                                      ValueType = "string"
                                  }
                             }
     };
     var claims = civ.ClaimViewList.Select(Mapper.Map<ClaimView, Claim>).ToList();
     Assert.AreEqual(1, claims.Count);
     Assert.AreEqual("type", claims.Single().Type);
     Assert.AreEqual("val", claims.Single().Value);
     Assert.AreEqual("string", claims.Single().ValueType);
}
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