定义http post 调用webservice的某个方法
1 /// <summary> 2 /// http Post调用 WebService 3 /// </summary> 4 public static XmlDocument Test1_QueryPostWebService(String URL, 5 String MethodName, Hashtable Pars) 6 { 7 8 9 HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URL + "/" + MethodName); 10 request.Method = "POST"; 11 request.ContentType = "application/x-www-form-urlencoded"; 12 request.Credentials = CredentialCache.DefaultCredentials; 13 request.Timeout = 10000; 14 15 #region 参数拼接成字符串，最后编码 16 StringBuilder sb = new StringBuilder(); 17 foreach (string k in Pars.Keys) 18 { 19 if (sb.Length > 0) 20 { 21 sb.Append("&"); 22 } 23 sb.Append( 24 HttpUtility.UrlEncode(k) + "=" 25 + HttpUtility.UrlEncode(Pars[k].ToString()) 26 ); 27 28 } 29 byte[] data = Encoding.UTF8.GetBytes(sb.ToString()); 30 #endregion 31 32 #region 把编码后的参数写入请求流中 33 request.ContentLength = data.Length; 34 Stream writer = request.GetRequestStream(); 35 writer.Write(data, 0, data.Length); 36 writer.Close(); 37 #endregion 38 39 #region 读取结果，创建XmlDocument对象，对象加载结果 40 var response = request.GetResponse(); 41 StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8); 42 String retXml = sr.ReadToEnd(); 43 sr.Close(); 44 XmlDocument doc = new XmlDocument(); 45 doc.LoadXml(retXml); 46 #endregion 47 48 return doc; 49 50 51 52 } 53
调用实例：
1 protected void Page_Load(object sender, EventArgs e) 2 { 3 Hashtable pars = new Hashtable(); 4 String Url = "http://localhost:63596/WebService1.asmx"; 5 pars["aa"] = "HelenZhou"; 6 XmlDocument doc = WebSvcCaller. 7 Test1_QueryPostWebService(Url, 8 "MyHelloWorld", 9 pars); 10 Response.Write(doc.OuterXml); 11 }
