注意，這個方法僅僅適用于:該post頁面處于websercive 站點下，或者是與webservice同屬于一個主站點，即在iis里屬于同一主站點的同級虛擬目錄。

protected void btnSynData_Click(object sender, EventArgs e){ string wsUrl = "http://127.0.0.1:1113/yingxiao/clfbxd.asmx/huixie"; //注意：huixie 是webservice的方法名string postData = "我是誰";HttpConnectToServer(wsUrl, postData);}/// <summary>/// 發送消息到ws服務器/// </summary>/// <param name="ServerPage"></param>/// <param name="strXml"></param>/// <returns></returns>public string HttpConnectToServer(string ServerPage, string strXml){string postData = "strXml=" + strXml;byte[] dataArray = Encoding.Default.GetBytes(postData);//創建請求HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(ServerPage);request.Credentials = CredentialCache.DefaultCredentials;request.CookieContainer = new CookieContainer();request.Method = "POST";request.ContentLength = dataArray.Length;request.ContentType = "application/x-www-form-urlencoded";//創建輸入流Stream dataStream = null;try{dataStream = request.GetRequestStream();}catch (Exception){return null;//連接服務器失敗 }//發送請求dataStream.Write(dataArray, 0, dataArray.Length);dataStream.Close();//讀取返回消息string res = string.Empty;try{HttpWebResponse response = (HttpWebResponse)request.GetResponse();StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);res = reader.ReadToEnd();reader.Close();}catch (Exception ex){throw new Exception(ex.Message);}return res;}

參考：http://www.jb51.net/article/34589.htm

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