c#动态调用Webservice的两种方法实例

方法一：
复制代码 代码如下:
Hashtable ht = new Hashtable();
            ht.Add("a", "testhelloworld");
            Xmldocument xx = WebServicesHelper.QuerySoapWebService("https://www.jb51.net/elab_mgmt/WorkflowSchemetaskSerivce.asmx", "ATesting", ht);
            string ss = xx.OuterXml;

复制代码 代码如下:
///

        /// 通用WebService调用(Soap),参数Pars为String类型的参数名、参数值
        ///

        public static Xmldocument QuerySoapWebService(String URL, String MethodName, Hashtable Pars)
        {
            if (_xmlNamespaces.ContainsKey(URL))
            {
                return QuerySoapWebService(URL, MethodName, Pars, _xmlNamespaces[URL].ToString());
            }
            else
            {
                return QuerySoapWebService(URL, MethodName, Pars, GetNamespace(URL));
            }
        }

复制代码 代码如下:
private static Xmldocument QuerySoapWebService(String URL, String MethodName, Hashtable Pars, string XmlNs)
        {
            _xmlNamespaces[URL] = XmlNs;//加入缓存，提高效率
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URL);
            request.Method = "POST";
            request.ContentType = "text/xml; charset=utf-8";
            request.Headers.Add("SOAPAction", """ + XmlNs + (XmlNs.EndsWith("/") ? "" : "/") + MethodName + """);
            SetWebRequest(request);
            byte[] data = EncodeParsToSoap(Pars, XmlNs, MethodName);
            WriteRequestData(request, data);
            Xmldocument doc = new Xmldocument(), doc2 = new Xmldocument();
            doc = ReadXmlResponse(request.GetResponse());

            XmlNamespaceManager mgr = new XmlNamespaceManager(doc.Nametable);
            mgr.AddNamespace("soap", "http://schemas.xmlsoap.org/soap/envelope/");
            String RetXml = doc.SelectSingleNode("//soap:Body/*/*", mgr).InnerXml;
            doc2.LoadXml("" + RetXml + "");
            AddDelaration(doc2);
            return doc2;
        }

复制代码 代码如下:
private static string GetNamespace(String URL)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL + "?WSDL");
            SetWebRequest(request);
            WebResponse response = request.GetResponse();
            StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
            Xmldocument doc = new Xmldocument();
            doc.LoadXml(sr.ReadToEnd());
            sr.Close();
            return doc.SelectSingleNode("//@targetNamespace").Value;
        }

方法二：

通过SOAPUI直接取URL
复制代码 代码如下:
string postData2="?";
            HttpHelper.GetResponseFormUrlAsync("http://www.xxx.com/testingservices.asmx?wsdl", postData2, "text/xml", true, new AsyncCallback(responseCallback));

复制代码 代码如下:
}
        static void responseCallback(IAsyncResult ar)
        {
            HttpWebRequest req = ar.AsyncState as HttpWebRequest;
            if (req == null)
                return;
            try
            {
                HttpWebResponse response = req.EndGetResponse(ar) as HttpWebResponse;
                if (response.StatusCode != HttpStatusCode.OK)
                {
                    response.Close();
                    LogHelper.Error("定时任务", "异步执行失败," + req.RequestUri.ToString() + "rnResponse状态代码为rn" + response.StatusCode.ToString());
                    return;
                }
                Stream responseStream = response.GetResponseStream();
                StreamReader reader = new StreamReader(responseStream, Encoding.UTF8);
                string ResponseStr = reader.ReadToEnd();
                responseStream.Close();
                LogHelper.Warn("定时任务", req.RequestUri.ToString() + "rn" + ResponseStr);
            }
            catch (Exception e)
            {
                LogHelper.Fatal("定时任务", req.RequestUri.ToString() + "rn执行失败", e);
            }
        }