string shujuid ="";//這裡為url的ID，自己去獲取資料
 
            //百度api推送 start
            string formUrl = "http://data.zz.baidu.com/urls?site=https://www.2wx.com&token=xxxxxxxxxxxxx";
            string formData = "https://www.2wx.com/view-"+shujuid+".html";
            byte[] postData = System.Text.Encoding.UTF8.GetBytes(formData);
            
 
// 設定提交的相關引數 
            System.Net.HttpWebRequest request = System.Net.WebRequest.Create(formUrl) as System.Net.HttpWebRequest;
            System.Text.Encoding myEncoding = System.Text.Encoding.UTF8;
            request.Method = "POST";
            request.KeepAlive = false;
            request.AllowAutoRedirect 
 
= true;
            request.ContentType = "text/plain";
            request.UserAgent = "curl/7.12.1";
            request.ContentLength = postData.Length; 
            // 提交請求資料 
            System.IO.Stream outputStream = request.GetRequestStream();
            outputStream.Write(postData, 0, postData.Length);
            outputStream.Close();
 
            System.Net.HttpWebResponse response;
            System.IO.Stream responseStream;
            System.IO.StreamReader reader;
            
 
string srcString;
            response = request.GetResponse() as System.Net.HttpWebResponse;
            responseStream = response.GetResponseStream();
            reader = new System.IO.StreamReader(responseStream, System.Text.Encoding.GetEncoding("UTF-8"));
            srcString = reader.ReadToEnd();
            string resultapi = srcString;   //返回值賦值
            reader.Close();            
            Response.Write(resultapi);
            //百度api推送 結束    

ASPX.NET百度API推送URL範例，自己測試可用。