C # dynamic WebService call interface

Dynamic call WebService, you can not add a Web reference, the line is just need to change the WSDL address on it

C # dynamic WebService call interface

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Using System; Using System.Collections; Using System.IO; Using System.Net; Using System.Text; Using System.Xml; Using System.Xml.Serialization; namespace Hishop.plugins {///<summary>///class webrequest/webresponse </summary> public using WebService for///invocation Class Webservicecaller {#region Tip: Use instructions//webservices should support get and post calls, Web.config should add the following code//<webservices>// <protocols>//<add name= "HttpGet"/>//<add name= "HttpPost"/>//</protocols>//</ Webservices>  //Call Example://hashtable HT = new Hashtable (); Hashtable is the set of parameters required for WebService//ht. ADD ("str", "Test"); Ht. ADD ("B", "true"); XmlDocument xx = Websvccaller.querysoapwebservice ("Http://localhost:81/service.asmx", "HelloWorld", HT); MessageBox.Show (xx. OuterXml); #endregion  ///<summary>///need WebService support post invocation///</summary> public static XmlDocument Querypostwe Bservice (String URL, String methodname, Hashtable Pars) {HttpWebRequest request = (HttpWebRequest) httpweBrequest.create (URL + "/" + methodname); Request. method = "POST"; Request. ContentType = "application/x-www-form-urlencoded"; Setwebrequest (Request); byte[] data = Encodepars (Pars); Writerequestdata (request, data); return Readxmlresponse (Request. GetResponse ()); }  ///<summary>///need webservice support get invocation///</summary> public static XmlDocument Querygetwebservice (St Ring URL, String methodname, Hashtable Pars) {HttpWebRequest request = (HttpWebRequest) httpwebrequest.create (URL + "/" + MethodName + "?" + parstostring (Pars)); Request. method = ' Get '; Request. ContentType = "application/x-www-form-urlencoded"; Setwebrequest (Request); return Readxmlresponse (Request. GetResponse ()); }  ///<summary>///Universal WebService Call (SOAP), parameter pars to string type parameter name, parameter value///</summary> public static XmlDocument Querysoapwebservice (String URL, String methodname, Hashtable Pars) {if (_xmlnamespaces.containskey (URL)) {R Eturn Querysoapwebservice (URL, MethodName, Pars, _xmlnamespaces[url). ToString ()); else {return Querysoapwebservice (URL, methodname, Pars, GetNamespace (URL));}   private static XmlDocument Querysoapwebservice (String URL, String methodname, Hashtable Pars, String XmlNs) {_xmln Amespaces[url] = xmlns;//Add cache, improve efficiency 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 ("<root>" + retxml + "</root>"); AdddelAration (DOC2); return doc2; } 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; }   private static byte[] Encodeparstosoap (Hashtable Pars, String XmlNs, String methodname) {XmlDocument doc = new X Mldocument (); 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>"); Adddelaration (DOC); XmlElement soapbody = doc.createelement_x_x ("soap", "Body", "http://schemas.xmlsoap.org/soap/envelope/"); XmlElement soapbody = doc. createelement ("soap", "Body", "http://schemas.xmlsoap.org/soap/envelope/"); XmlElement soapmethod = doc.createelement_x_x (methodname); XmlElement Soapmethod = doc. CreateElement (methodname); Soapmethod.setattribute ("xmlns", xmlns); foreach (string k in Pars.keys) {//xmlelement Soappar = doc.createelement_x_x (k); XmlElement soappar = doc. CreateElement (k); Soappar.innerxml = Objecttosoapxml (Pars[k]); Soapmethod.appendchild (Soappar); } soapbody.appendchild (Soapmethod); Doc. Documentelement.appendchild (Soapbody); Return Encoding.UTF8.GetBytes (Doc. OuterXml); private static string Objecttosoapxml (object o) {XmlSerializer myserializer = new XmlSerializer (O.gettype ()); MemoryStream ms = new MemoryStream (); Myserializer.serialize (MS, O); XmlDocument doc = new XmlDocument (); Doc. Loadxml (Encoding.UTF8.GetString) (Ms. ToArray ())); if (Doc. DocumentElement!= null) {return doc. Documentelement.innerxml; else {return o.tostring ();}}  ///<summary>///set voucher and timeout///</summary>///<param name= "Request" ></param> private Static void Setwebrequest (HttpWebRequest request) {request. Credentials = CredentialCache.DefaultCredentials; Request. Timeout = 10000; }   private static void Writerequestdata (HttpWebRequest request, byte[] data) {request. ContentLength = data. Length; Stream writer = Request. GetRequestStream (); Writer. Write (data, 0, data. Length); Writer. Close (); }   private static byte[] Encodepars (Hashtable Pars) {return Encoding.UTF8.GetBytes (parstostring (Pars));}   PR Ivate static String parstostring (Hashtable Pars) {StringBuilder sb = new StringBuilder (); foreach (String k in Pars.keys) {if (sb.) Length > 0) {sb. Append ("&"); }//SB. Append (Httputility.urlencode (k) + "=" + Httputility.urlencode (pars[k). ToString ())); Return SB. ToString (); }   private static XmlDocument Readxmlresponse (WebResponse response) {StreamReader sr = new StreamReader (response. GetResponseStream (), Encoding.UTF8); String retxml = Sr. ReadToEnd (); Sr. Close (); XmlDocument doc = new XmlDocument (); Doc.Loadxml (Retxml); return doc; }   private static void Adddelaration (XmlDocument doc) {XmlDeclaration decl = doc. Createxmldeclaration ("1.0", "Utf-8", null); Doc. InsertBefore (Decl, Doc. DocumentElement); }   private static Hashtable _xmlnamespaces = new Hashtable ()//cache xmlnamespace to avoid repeated calls to GetNamespace}}

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Call and read the parse return result DataSet ds = new DataSet (); XmlNode XmlNode1; XmlDataDocument xd = new XmlDataDocument (); StringBuilder SB; Hashtable ht = new Hashtable (); Ht. ADD ("Xmlin", "<Request><MemCode>001</MemCode></Request>"); XmlNode1 = Hishop.Plugins.WebServiceCaller.QuerySoapWebService ("Http://xxx.xxxx.com/Service.asmx", "sinpointquery ", HT); if (xmlNode1 = = null) {return;} string xmlstr= Httputility.htmldecode (xmlnode1.outerxml); SB = new StringBuilder (XMLSTR); if (sb.) ToString (). Equals ("")) {return;} Xd. Loadxml (sb.) ToString ()); Ds. READXML (New XmlNodeReader (XD)); DS can return a result set

Example two:

1. Method of dynamic invocation:

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<summary>///Dynamic WebService call///</summary>///<returns>string</returns> public string Wstest () {String url = "HTTP://LOCALHOST:8080/MYWEBSERVICETEST/SERVICES/MYSERVICES?WSDL";//wsdl address string name = "   Wstest ";//javawebservice Open Interface WebServiceProxy WSD = new WebServiceProxy (URL, name);   string[] str = {"Test C # Invoke Java WebService", "Hello WebService"}; String suc = (string) WSD.   ExecuteQuery (name, str); return suc; }

2. Dynamic invocation of specific classes:

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Using System; Using System.Collections; Using System.ComponentModel; Using System.Data; Using System.Linq; Using System.Web; Using System.Web.Services; Using System.Web.Services.Protocols; Using System.Xml.Linq;     using System.IO; Using System.Net; Using System.CodeDom; Using System.CodeDom.Compiler; Using System.Web.Services.Description; Using System.Xml.Serialization; Using System.Web.Services.Discovery; Using System.Xml.Schema; Using System.Text; Using System.Security.Cryptography; Using System.Reflection; Using System.Collections.Generic; Using System.Xml;   namespace Tpsvservice {///<summary>///webserviceproxy Summary description///</summary> [WebService (Namespace = "http://tempuri.org/")] [webservicebinding (ConformsTo = wsiprofiles.basicprofile1_1)] [ToolboxItem (false)]//To allow use of the asp.net AJAX calls this Web service from a script, uncomment the line. [System.Web.Script.Services.ScriptService] public class WebServiceProxy:System.Web.Services.WebService {  # Region private variables and attribute definitions///;summary>///Web service address///</summary> private String _wsdlurl = String. Empty; <summary>///Web service name///</summary> private String _wsdlname = String. Empty; <summary>///proxy class namespace///</summary> private string _wsdlnamespace = " FrameWork.WebService.DynamicWebServiceCalling. {0} "; <summary>///proxy class type name///</summary> private type _typename = null; <summary>///assembly name///</summary> private String _assname = String. Empty; <summary>///proxy class is in the assembly path///</summary> private String _asspath = String. Empty; <summary>///proxy class instance///</summary> Private object _instance = null; <summary>///instance of proxy class///</summary> private object Instance {get {if (_instance = = null) {_instance = A Ctivator. CreateInstance (_typename); return _instance; else return _instance; #endregion   #region Constructor public WebServiceProxy (string wsdlurl) {  This._wsdlurl = wsdlurl; string Wsdlnam E = Webserviceproxy.getwsclassname (Wsdlurl); This._wsdlname = Wsdlname; This._assname = string. Format (_wsdlnamespace, wsdlname); This._asspath = Path.gettemppath () + This._assname + getmd5sum (this._wsdlurl) + ". dll"; This. Createserviceassembly (); }   Public WebServiceProxy (String wsdlurl, String wsdlname) {this._wsdlurl = wsdlurl; this._wsdlname = wsdlname; thi S._assname = string. Format (_wsdlnamespace, wsdlname); This._asspath = Path.gettemppath () + This._assname + getmd5sum (this._wsdlurl) + ". dll"; This. Createserviceassembly (); #endregion   #region Get WSDL information, generate local proxy class and compile as DLL, constructor call, load///<summary>///When class builds, generate WSDL information, build local proxy class and compile as DLL///& lt;/summary> private void createserviceassembly () {if (This.checkcache ()) {this.inittypename (); return;} if (String. IsNullOrEmpty (This._wsdlurl)) {return;} try {//Use WebClient to download wsdl information WebClient web = new WebClient (); Stream stream = web. OpenRead (This._wsdlurl); ServiceDescription Description = Servicedescription.read (stream);//Create and formatWSDL Document ServiceDescriptionImporter Importer = new ServiceDescriptionImporter ();//Create Client proxy class importer. ProtocolName = "Soap"; Importer. Style = servicedescriptionimportstyle.client; Generate Client Agent importer. CodeGenerationOptions = Codegenerationoptions.generateproperties | Codegenerationoptions.generatenewasync; Importer. Addservicedescription (description, NULL, NULL);//Add WSDL Document//use CodeDom to compile client proxy class CodeNamespace Nmspace = new CodeNamespace (_assname); Add a namespace to the proxy class CodeCompileUnit unit = new CodeCompileUnit (); Unit. Namespaces.add (Nmspace); This.checkforimports (This._wsdlurl, importer); Servicedescriptionimportwarnings warning = importer. Import (nmspace, unit); CodeDomProvider Provider = Codedomprovider.createprovider ("CSharp"); CompilerParameters parameter = new CompilerParameters (); Parameter. Referencedassemblies.add ("System.dll"); Parameter. Referencedassemblies.add ("System.XML.dll"); Parameter. Referencedassemblies.add ("System.Web.Services.dll"); Parameter. Referencedassemblies.add ("System.Data.dll"); Parameter. GenerateExecutable = false; Parameter. GenerateInMemory = false; Parameter. IncludeDebugInformation = false; CompilerResults result = provider.compileassemblyfromdom (parameter, unit); Provider. Dispose (); if (result. errors.haserrors) {string Errors = string. Format (@) Compilation error: {0} Error! ", result. Errors.Count); foreach (compilererror error in result.) Errors) {Errors = = error. ErrorText; } throw new Exception (errors); } this.copytempassembly (Result. pathtoassembly); This.inittypename (); catch (Exception e) {throw new Exception (E.message);}} #endregion   #region Execute Web service methods///<summary>///Execute proxy class Specify method with return value///</summary>///<param name= "Methods Name > method name </param>///<param name= "param" > Parameter </param>///<returns>object</returns > Public Object ExecuteQuery (String methodname, object[] param) {object rtnobj = null; string[] args = new string[2]; list<string> list = new list<string> (); List<string> List1 = new List<strIng> (); list<string> list2 = new list<string> (); object[] obj = new Object[3];   try {if (This._typename = null) {//Log Web Service access class name error log code location throw new TypeLoadException ("Web Service Access Class name" + This._wsdlname + "" Not correct, please check! "); } Call method MethodInfo mi = This._typename.getmethod (methodname); if (mi = = null) {//Log Web service method name error log code location throw new TypeLoadException ("Web Service access Method name" + methodname + "" is not correct, please check!) "); } try {if (param = null) rtnobj = mi. Invoke (Instance, NULL); else {list. ADD ("Hello"); List. ADD ("WebService"); List. ADD ("!");   List1. ADD ("I"); List1. ADD ("AM"); List1. ADD ("test");   List2. ADD ("Do"); List2. ADD ("it"); List2. ADD ("Now");   Obj[0] = list; OBJ[1] = List1; OBJ[2] = List2;   Rtnobj = mi. Invoke (Instance, new object[] {obj}); Rtnobj = mi. Invoke (Instance, new object[] {param}); } catch (TypeLoadException tle) {//Log Web service method parameters error log code location throw new TypeLoadException ("Web Service access Method" + methodname + "") Number of parameters Not correct, please check! , New TypeLoadException (TLE). StackTrace)); } catch (Exception ex) {throw new Exception (ex. Message, New Exception (ex. StackTrace)); return rtnobj; }  ///<summary>///Execution proxy class specifies method, no return value///</summary>///<param name= "methodname" > method name </param& Gt <param name= "param" > Parameters </param> public void Executenoquery (String methodname, object[] param) {try {if T His._typename = = null) {//Log Web Service access class name error log code location throw new TypeLoadException ("Web Service Access Class name" + This._wsdlname + "" Not correct, please check!) "); } Call method MethodInfo mi = This._typename.getmethod (methodname); if (mi = = null) {//Log Web service method name error log code location throw new TypeLoadException ("Web Service access Method name" + methodname + "" is not correct, please check!) "); } try {if (param = null) mi. Invoke (Instance, NULL); Else mi. Invoke (Instance, param); catch (TypeLoadException tle) {//Log Web service method parameters error log code location throw new TypeLoadException (Web Service access Method "+ methodname +" "parameter number is not positive Indeed, please check! , New TypeLoadException (TLE). StackTrace)); } catch (Exception ex) {throw new Exception (ex. Message, New Exception (ex. StackTrace)); }#endregion   #region Private method///<summary>///Gets the proxy class type name///</summary> private void Inittypename () {Asse mbly serviceasm = Assembly.LoadFrom (This._asspath); type[] types = Serviceasm.gettypes (); String objtypename = ""; foreach (Type t in types) {if (T.basetype = = typeof (SoapHttpClientProtocol)) {objtypename = T.name; break;}} _typename = Serviceasm.gettype (This._assname + "." + Objtypename); }  ///<summary>///add servicedescription and XmlSchema///</summary>///<param N to the proxy class according to the Web Service document schema Ame= "Basewsdlurl" >web service address </param>///<param name= "Importer" > proxy class </param> private void Checkforimports (String basewsdlurl, ServiceDescriptionImporter Importer) {Discoveryclientprotocol DCP = new Discoveryclientprotocol (); Dcp. Discoverany (Basewsdlurl); Dcp. ResolveAll (); foreach (Object OSD in DCP). Documents.values) {if (OSD is servicedescription) importer. Addservicedescription ((servicedescription) OSD, NULL, NULL);; If (OSD is XmlSchema)Importer. Schemas.add ((XmlSchema) OSD); }  ///<summary>///replication assembly to the specified path///</summary>///<param name= "pathtoassembly" > Assembly path </param > private void copytempassembly (string pathtoassembly) {file.copy (pathtoassembly, This._asspath);}   Private St Ring Getmd5sum (String str) {Encoder enc = System.Text.Encoding.Unicode.GetEncoder (); byte[] UnicodeText = new Byte[str. Length * 2]; Enc. GetBytes (str. ToCharArray (), 0, str. Length, UnicodeText, 0, true); MD5 MD5 = new MD5CryptoServiceProvider (); Byte[] result = Md5.computehash (UnicodeText); StringBuilder sb = new StringBuilder (); for (int i = 0; I < result. Length; i++) {sb. Append (Result[i]. ToString ("X2")); Return SB. ToString ();  ///<summary>///whether the assembly///</summary>///<returns>false: This assembly is not present, true: The assembly already exists </ returns> private bool Checkcache () {if (file.exists (This._asspath)) {return true;} return false;}  //private method, default fetch The file name for the URL entry is the class name private static string GetwsclassName (String wsdlurl) {string[] parts = wsdlurl.split ('/'); string[] pps = parts[parts. LENGTH-1]. Split ('. '); return pps[0]; } #endregion}}

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