WCF / WCF Ria服务在“ IncludedResults”中返回关系数据

Question

当我们在Silverlight应用程序中使用invoke操作对其进行调用时，WCF / WCF ria服务将返回正确的数据，但是当我们在angular中使用此服务或从邮递员中对其进行调用时，则返回RootResults外部的关系数据，并带有单独的“ IncludedResults”。

服务/ API方法-

public IQueryable<viewauthor> getauthors(int author_id)
        {
            IQueryable<viewauthor> lstAuthor = null;
            lstAuthor = this.ObjectContext.books.Include("books").Where(p => p.author_id == author_id).AsQueryable();
            IEnumerable<viewauthor> lstResult = lstAuthor.ToList().Trim();
            return lstResult.AsQueryable();
        }

实体框架元数据“ author.metada.cs”-

[MetadataTypeAttribute(typeof(ViewAuthor.ViewAuthorMetadata))]
    public partial class ViewAuthor
    {
    public string AUTOR_ID { get; set; }
    ....
    ....

    [Include]
    public EntityCollection<books> Books { get; set; }
    ....
    ....
    }

来自“ getauthors” API的实际JSON响应-

{
  "SelectDocDetailsByMattterIDResult": {
    "TotalCount": 1,
    "IncludedResults": [
      {
        "__type": "books:#library.Web.Data",
        "book_id": 1,
        "title": "Test book 1"
      },
      {
        "__type": "books:#library.Web.Data",
        "book_id": 2,
        "title": "Test book 2"
      },

    ],
    "RootResults": [
      {
        "author_id": 1,
        "ADD_TIME": "\/Date(1559300437353+0530)\/",
        "name": "test author"
      }
    ]
  }
}

预期的JSON-

{
  "SelectDocDetailsByMattterIDResult": {
    "TotalCount": 1,
    "RootResults": [
      {
        "author_id": 1,
        "ADD_TIME": "\/Date(1559300437353+0530)\/",
        "name": "test author",
        "books": [
          {
            "__type": "books:#library.Web.Data",
            "book_id": 1,
            "title": "Test book 1"
          },
          {
            "__type": "books:#library.Web.Data",
            "book_id": 2,
            "title": "Test book 2"
          },

        ]
      }
    ]
  }
}

我需要与SilverLight应用程序相同的JSON响应，我做错了什么？ 请帮忙。

Answer 1

您如何定义服务接口以及服务器使用哪种绑定？ 请参考我的定义。

        [OperationContract]
        [WebInvoke(ResponseFormat =WebMessageFormat.Json,RequestFormat =WebMessageFormat.Json)]
        List<Product> SayHello();

    public class Product
    {
        public int ID { get; set; }
        public string Name { get; set; }
        public List<Animal> Animals { get; set; }


    }
    public class Animal
    {
        public int ID { get; set; }
        public string Name { get; set; }

}

结果。

另外，默认的序列化器是XMLSerializer，我们可以使用DataContractSeriailizer简化序列化，请参考下面的链接。
https://docs.microsoft.com/en-us/dotnet/framework/wcf/feature-details/using-data-contracts
https://docs.microsoft.com/en-us/dotnet/framework/wcf/feature-details/data-contract-known-types
请随时告诉我是否有什么我可以帮助的。