1         #region Tip:使用说明  2         //webServices 应该支持Get和Post调用，在web.config应该增加以下代码  3         //<webServices>  4         //  <protocols>  5         //    <add name="HttpGet"/>  6         //    <add name="HttpPost"/>  7         //  </protocols>  8         //</webServices>  9  10         //调用示例： 11         //Hashtable ht = new Hashtable();  //Hashtable 为webservice所需要的参数集 12         //ht.Add("str", "test"); 13         //ht.Add("b", "true"); 14         //XmlDocument xx = WebSvcCaller.QuerySoapWebService("http://localhost:81/service.asmx", "HelloWorld", ht); 15         //MessageBox.Show(xx.OuterXml); 16         #endregion 17  18         /// <summary> 19         /// 需要WebService支持Post调用 20         /// </summary> 21         public static XmlDocument QueryPostWebService(string URL, string MethodName, Hashtable Pars) 22         { 23             HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URL + "/" + MethodName); 24             request.Method = "POST"; 25             request.ContentType = "application/x-www-form-urlencoded"; 26             SetWebRequest(request); 27             byte[] data =http://www.mamicode.com/ EncodePars(Pars); 28             WriteRequestData(request, data); 29             return ReadXmlResponse(request.GetResponse()); 30         } 31  32         /// <summary> 33         /// 需要WebService支持Get调用 34         /// </summary> 35         public static XmlDocument QueryGetWebService(String URL, String MethodName, Hashtable Pars) 36         { 37             HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URL + "/" + MethodName + "?" + ParsToString(Pars)); 38             request.Method = "GET"; 39             request.ContentType = "application/x-www-form-urlencoded"; 40             SetWebRequest(request); 41             return ReadXmlResponse(request.GetResponse()); 42         } 43  44         /// <summary> 45         /// 通用WebService调用(Soap),参数Pars为String类型的参数名、参数值 46         /// </summary> 47         public static XmlDocument QuerySoapWebService(String URL, String MethodName, Hashtable Pars) 48         { 49             if (_xmlNamespaces.ContainsKey(URL)) 50             { 51                 return QuerySoapWebService(URL, MethodName, Pars, _xmlNamespaces[URL].ToString()); 52             } 53             else 54             { 55                 return QuerySoapWebService(URL, MethodName, Pars, GetNamespace(URL)); 56             } 57         } 58  59         private static XmlDocument QuerySoapWebService(String URL, String MethodName, Hashtable Pars, string XmlNs) 60         { 61             _xmlNamespaces[URL] = XmlNs;//加入缓存，提高效率 62             HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URL); 63             request.Method = "POST"; 64             request.ContentType = "text/xml; charset=utf-8"; 65             request.Headers.Add("SOAPAction", "\"" + XmlNs + (XmlNs.EndsWith("/") ? "" : "/") + MethodName + "\""); 66             SetWebRequest(request); 67             byte[] data =http://www.mamicode.com/ EncodeParsToSoap(Pars, XmlNs, MethodName); 68             WriteRequestData(request, data); 69             XmlDocument doc = new XmlDocument(), doc2 = new XmlDocument(); 70             doc = ReadXmlResponse(request.GetResponse()); 71  72             XmlNamespaceManager mgr = new XmlNamespaceManager(doc.NameTable); 73             mgr.AddNamespace("soap", "http://schemas.xmlsoap.org/soap/envelope/"); 74             String RetXml = doc.SelectSingleNode("//soap:Body/*/*", mgr).InnerXml; 75             doc2.LoadXml("<root>" + RetXml + "</root>"); 76             AddDelaration(doc2); 77             return doc2; 78         } 79         private static string GetNamespace(String URL) 80         { 81             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL + "?WSDL"); 82             SetWebRequest(request); 83             WebResponse response = request.GetResponse(); 84             StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8); 85             XmlDocument doc = new XmlDocument(); 86             doc.LoadXml(sr.ReadToEnd()); 87             sr.Close(); 88             return doc.SelectSingleNode("//@targetNamespace").Value; 89         } 90  91         private static byte[] EncodeParsToSoap(Hashtable Pars, String XmlNs, String MethodName) 92         { 93             XmlDocument doc = new XmlDocument(); 94             doc.LoadXml("<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"></soap:Envelope>"); 95             AddDelaration(doc); 96             //XmlElement soapBody = doc.createElement_x_x("soap", "Body", "http://schemas.xmlsoap.org/soap/envelope/"); 97             XmlElement soapBody = doc.CreateElement("soap", "Body", "http://schemas.xmlsoap.org/soap/envelope/"); 98             //XmlElement soapMethod = doc.createElement_x_x(MethodName); 99             XmlElement soapMethod = doc.CreateElement(MethodName);100             soapMethod.SetAttribute("xmlns", XmlNs);101             foreach (string k in Pars.Keys)102             {103                 //XmlElement soapPar = doc.createElement_x_x(k);104                 XmlElement soapPar = doc.CreateElement(k);105                 soapPar.InnerXml = ObjectToSoapXml(Pars[k]);106                 soapMethod.AppendChild(soapPar);107             }108             soapBody.AppendChild(soapMethod);109             doc.DocumentElement.AppendChild(soapBody);110             return Encoding.UTF8.GetBytes(doc.OuterXml);111         }112         private static string ObjectToSoapXml(object o)113         {114             XmlSerializer mySerializer = new XmlSerializer(o.GetType());115             MemoryStream ms = new MemoryStream();116             mySerializer.Serialize(ms, o);117             XmlDocument doc = new XmlDocument();118             doc.LoadXml(Encoding.UTF8.GetString(ms.ToArray()));119             if (doc.DocumentElement != null)120             {121                 return doc.DocumentElement.InnerXml;122             }123             else124             {125                 return o.ToString();126             }127         }128 129         /// <summary>130         /// 设置凭证与超时时间131         /// </summary>132         /// <param name="request"></param>133         private static void SetWebRequest(HttpWebRequest request)134         {135             request.Credentials = CredentialCache.DefaultCredentials;136             request.Timeout = 10000;137         }138 139         private static void WriteRequestData(HttpWebRequest request, byte[] data)140         {141             request.ContentLength = data.Length;142             Stream writer = request.GetRequestStream();143             writer.Write(data, 0, data.Length);144             writer.Close();145         }146 147         private static byte[] EncodePars(Hashtable Pars)148         {149             return Encoding.UTF8.GetBytes(ParsToString(Pars));150         }151 152         private static String ParsToString(Hashtable Pars)153         {154             StringBuilder sb = new StringBuilder();155             foreach (string k in Pars.Keys)156             {157                 if (sb.Length > 0)158                 {159                     sb.Append("&");160                 }161                 //sb.Append(HttpUtility.UrlEncode(k) + "=" + HttpUtility.UrlEncode(Pars[k].ToString()));162             }163             return sb.ToString();164         }165 166         private static XmlDocument ReadXmlResponse(WebResponse response)167         {168             StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);169             String retXml = sr.ReadToEnd();170             sr.Close();171             XmlDocument doc = new XmlDocument();172             doc.LoadXml(retXml);173             return doc;174         }175 176         private static void AddDelaration(XmlDocument doc)177         {178             XmlDeclaration decl = doc.CreateXmlDeclaration("1.0", "utf-8", null);179             doc.InsertBefore(decl, doc.DocumentElement);180         }181 182         private static Hashtable _xmlNamespaces = new Hashtable();//缓存xmlNamespace，避免重复调用GetNamespace