Copy Code code as follows:
Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Web;
Using System.Net;
Using System.IO;
Using System.Web.Services.Description;
Using System.CodeDom;
Using Microsoft.csharp;
Using System.CodeDom.Compiler;
Using System.Reflection;
Namespace HTTPS
{
public class Wshelper
{
< summary>
To invoke a Web service dynamically
</summary>
< param name= "url" >wsdl service address </param>
< param name= "methodname" > method name </param>
< param name= "args" > Parameters </param>
< returns></returns>
public static object Invokewebservice (string URL, String methodname, object[] args)
{
Return wshelper.invokewebservice (URL, null, methodname, args);
}
< summary>
To invoke a Web service dynamically
</summary>
< param name= "url" >wsdl service address </param>
< param name= "classname" > class name </param>
< param name= "methodname" > method name </param>
< param name= "args" > Parameters </param>
< returns></returns>
public static object Invokewebservice (string url, string classname, String methodname, object[] args)
{
String @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";
if ((classname = null) | | (classname = ""))
{
classname = wshelper.getwsclassname (URL);
}
Try
{//Get WSDL
WebClient WC = new WebClient ();
Stream stream = WC. OpenRead (URL + "?) WSDL ");
ServiceDescription sd = Servicedescription.read (stream);
ServiceDescriptionImporter SDI = new ServiceDescriptionImporter ();
Sdi. Addservicedescription (SD, "", "");
CodeNamespace cn = new CodeNamespace (@namespace);
Generate client proxy class code
CodeCompileUnit CCU = new CodeCompileUnit ();
Ccu. Namespaces.add (CN);
Sdi. Import (CN, CCU);
CSharpCodeProvider ICC = new CSharpCodeProvider ();
Set compilation parameters
CompilerParameters cplist = new CompilerParameters ();
Cplist. GenerateExecutable = false;
Cplist. GenerateInMemory = true;
Cplist. Referencedassemblies.add ("System.dll");
Cplist. Referencedassemblies.add ("System.XML.dll");
Cplist. Referencedassemblies.add ("System.Web.Services.dll");
Cplist. Referencedassemblies.add ("System.Data.dll");
Compiling proxy classes
CompilerResults cr = Icc.compileassemblyfromdom (cplist, CCU);
if (true = = Cr. Errors.haserrors)
{
System.Text.StringBuilder sb = new System.Text.StringBuilder ();
foreach (System.CodeDom.Compiler.CompilerError ce in CR. Errors)
{
Sb. Append (CE. ToString ());
Sb. Append (System.Environment.NewLine);
}
throw new Exception (sb.) ToString ());
}
Generates a proxy instance and calls the method
System.Reflection.Assembly Assembly = cr.compiledassembly;
Type t = assembly. GetType (@namespace + "." + ClassName, True, true);
Object obj = activator.createinstance (t);
System.Reflection.MethodInfo mi = t.getmethod (methodname);
Return MI. Invoke (obj, args);
PropertyInfo PropertyInfo = type. GetProperty (PropertyName);
return propertyinfo.getvalue (obj, null);
}
catch (Exception ex)
{
throw new Exception (ex. Innerexception.message, New Exception (ex. Innerexception.stacktrace));
}
}
private static string Getwsclassname (String wsurl)
{
string[] parts = wsurl.split ('/');
string[] pps = parts[parts. LENGTH-1]. Split ('. ');
return pps[0];
}
}
}
Call
Copy Code code as follows:
String url = "Http://webservice.webxml.com.cn/WebServices/TrainTimeWebService.asmx";
string[] args = new string[2];
Args[0] = "k123";
ARGS[1] = "";
Object result = Wshelper.invokewebservice (URL, "Getdetailinfobytraincode", args);
DataSet ds = (DataSet) result;
This. Gridview1.datasource = ds;
This. Gridview1.databind ();
