使用C# HttpWebRequest将json发送到web服务
我是JSON新手，需要帮助。我有一些JSON在jquery中工作，并从我在web上运行的web服务中正确地返回信息。但是，我无法在C#中使用HttpWebRequest让它工作。我将发布下面的代码。
/// <summary>
/// Summary description for VBRService
/// </summary>
[WebService(Namespace = "http://test.visitblueridge.com/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
[System.Web.Script.Services.ScriptService]
public class VBRService : System.Web.Services.WebService
{
[WebMethod]
public string HelloWorld()
{
return "Hello World";
}
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string callJson(string x)
{
return "Worked =" + x;
}
}在web服务上，我希望能够使用以下代码调用"callJson(string x)“，
var httpWebRequest = (HttpWebRequest)WebRequest.Create(webAddr);
httpWebRequest.ContentType = "text/json";
httpWebRequest.Method = "POST";
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
string json = "{\"x\":\"true\"}";
streamWriter.Write(json);
streamWriter.Flush();
}
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
var result = streamReader.ReadToEnd();
return result;
}我一直收到一个内部服务器错误。当我将type更改为application/json并添加时，
request.Headers.Add("SOAPAction", "http://test.visitblueridge.com/callJson");我收到一个不可接受的媒体错误。
提前感谢您，希望这对其他人有所帮助。
回答 1
Stack Overflow用户
发布于 2013-12-11 13:11:55
首先，您错过了要添加到webservice中的ScriptService属性。
ScriptService
然后尝试下面的方法通过JSON调用webservice。
var webAddr = "http://Domain/VBRService.asmx/callJson"; var httpWebRequest = (HttpWebRequest)WebRequest.Create(webAddr); httpWebRequest.ContentType = "application/json; charset=utf-8"; httpWebRequest.Method = "POST"; using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream())) { string json = "{\"x\":\"true\"}"; streamWriter.Write(json); streamWriter.Flush(); } var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse(); using (var streamReader = new StreamReader(httpResponse.GetResponseStream())) { var result = streamReader.ReadToEnd(); return result; }
https://stackoverflow.com/questions/20510437
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