Question

这很奇怪。所以我有一个返回JSON的WCF服务。它返回一个对象列表。如果列表为空，它可以正常工作，但是当我将一个对象添加到列表时，我得到“无法获得任何响应”错误。我正在使用邮递员来测试服务。

这是我的代码。

public List<ProductDetails> GetProductsByCategory3(Stream s)
{    
    DataContractJsonSerializer json = new DataContractJsonSerializer(typeof(ProdPagenation));
    ProdPagenation result = (ProdPagenation)json.ReadObject(s);
    List<ProductDetails> pdl = new List<ProductDetails>();
    ProductDetails pd = new ProductDetails();//works well if this is not added to list.
    pdl.Add(pd);//As soon as a new object is added i get no response
    return pdl;
}

[OperationContract]
[WebInvoke(Method = "POST",
    ResponseFormat = WebMessageFormat.Json,
    RequestFormat = WebMessageFormat.Json,
    UriTemplate = "/GetProdByCat3")]
List<ProductDetails> GetProductsByCategory3(Stream s);



    [DataContract]
    public class ProductDetails
    {

    [DataMember]
       public int Id { get; set; }
    [DataMember]
       public string ITEM_ITEM_NAME { get; set; }
    [DataMember]
       public DateTime ITEM_ENTR_DATE { get; set; }
    [DataMember]
       public string ITEM_ITEM_STS { get; set; }
    [DataMember]
       public int ITEM_GRP_CODE { get; set; }
    [DataMember]
       public int ITEM_SBGRP_CODE { get; set; }
    [DataMember]
       public int ITEM_SBSBGRP_CODE { get; set; }
    [DataMember]
       public int Picid { get; set; }
    [DataMember]
       public string PicturePath { get; set; }
    }

我不知道为什么这样做。

Answer 1

[DataContract]
 public class ProductDetails
        {
        // Apply the DataMemberAttribute to the property.
        [DataMember]
           public int Id { get; set; }
        [DataMember]
           public string ITEM_ITEM_NAME { get; set; }
        [DataMember]
           public DateTime ITEM_ENTR_DATE { get; set; }
        [DataMember]
           public string ITEM_ITEM_STS { get; set; }
        [DataMember]
           public int ITEM_GRP_CODE { get; set; }
        [DataMember]
           public int ITEM_SBGRP_CODE { get; set; }
        [DataMember]
           public int ITEM_SBSBGRP_CODE { get; set; }
        [DataMember]
           public int Picid { get; set; }
        [DataMember]
           public string PicturePath { get; set; }
        }

返回对象列表json时，WCF服务没有响应

1 个答案: