How to post json object in web service

任何一个可以帮助我，请即如何使用C＃JSON对象发布到Web服务？其实我想，以验证在C＃中的App Store的交易收据。

请点击此链接到有足够的想法。

http://developer.apple.com/iphone/library/documentation/NetworkingInternet/Conceptual/StoreKitGuide/VerifyingStoreReceipts/VerifyingStoreReceipts.html#//apple_ref/doc/uid/TP40008267-CH104-SW1

请帮助我，如果你有一些想法或知识。

提前致谢，

Answer 1:

string receiptData = "(receipt bytes here)";

string url = "https://buy.itunes.apple.com/verifyReceipt";

HttpWebRequest oneWebRequest = (HttpWebRequest)WebRequest.Create(url);
oneWebRequest.Method = "POST";
oneWebRequest.ContentType = "application/json; charset=utf-8";

string json = "{ \"receipt-data\": \"" + receiptData + "\" }";

oneWebRequest.ContentLength = json.Length;
using (System.IO.StreamWriter oneStreamWriter =
  new System.IO.StreamWriter(oneWebRequest.GetRequestStream(),
                             System.Text.Encoding.ASCII))
{
    oneStreamWriter.Write(json);
}

HttpWebResponse oneWebResponse = (HttpWebResponse)oneWebRequest.GetResponse();

// ReceiptStatus is a class with two public string properties (status & receipt)
DataContractJsonSerializer oneDataContractJsonSerializer =
  new DataContractJsonSerializer(typeof(List<Product>));
ReceiptStatus oneReceiptStatus =
   (ReceiptStatus) oneDataContractJsonSerializer.ReadObject(
      oneWebResponse.GetResponseStream()
   );