代码语言：js复制
using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.IO;
public class HttpClient
{
private WebRequest webRequest = null;
public delegate void ResponseEventHandler(String responseResult);
public event ResponseEventHandler onResponseEventHandler;
public delegate void RequestEventHandler();
public event RequestEventHandler onRequestEventHandler;
public string PostData { get; set; }
public HttpClient(Uri clientUri)
{
Uri endpoint = clientUri;
webRequest = WebRequest.Create(endpoint);
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.Method = "POST";
}
public void Post()
{
webRequest.BeginGetRequestStream(new AsyncCallback(RequestReady), webRequest);
}
private void RequestReady(IAsyncResult asyncResult)
{
if (this.onRequestEventHandler != null)
{
this.onRequestEventHandler();
}
WebRequest request = asyncResult.AsyncState as WebRequest;
Stream requestStream = request.EndGetRequestStream(asyncResult);
using (StreamWriter writer = new StreamWriter(requestStream))
{
writer.Write(this.PostData);
writer.Flush();
writer.Close();
}
webRequest.BeginGetResponse(new AsyncCallback(ResponseReady), webRequest);
}
private void ResponseReady(IAsyncResult asyncResult)
{
if (this.onResponseEventHandler != null)
{
WebRequest request = asyncResult.AsyncState as WebRequest;
WebResponse response = request.EndGetResponse(asyncResult);
using (Stream responseStream = response.GetResponseStream())
{
String responseResult = String.Empty;
try
{
StreamReader reader = new StreamReader(responseStream);
responseResult = reader.ReadToEnd();
}
catch (WebException er)
{
responseResult = er.Message;
}
catch (Exception er)
{
responseResult = er.Message;
}
this.onResponseEventHandler(responseResult);
}
}
}
}
