请大家帮帮忙(怎么在VC6.0中调用Web Service)

请大家帮帮忙(如何在VC6.0中调用Web Service):
请大家帮帮忙(如何在VC6.0中调用Web   Service):

以下是我在.NET   2005中用C#写的Web   Service代码:

using   System;
using   System.Web;
using   System.Web.Services;
using   System.Web.Services.Protocols;

[WebService(Namespace   =   "http://tempuri.org/ ")]
[WebServiceBinding(ConformsTo   =   WsiProfiles.BasicProfile1_1)]
public   class   Service   :   System.Web.Services.WebService
{
        public   Service   ()   {

                //如果使用设计的组件，请取消注释以下行  
                //InitializeComponent();  
        }

        [WebMethod]
        public   string   HelloWorld()   {
                return   "Hello   World ";
        }

        [WebMethod]
        public   int   Add(int   a,   int   b)
        {
                int   c   =   a   +   b;
                return   c;
        }
}


而在VC   6.0中的代码如下:

#include   <stdio.h>

#import   "msxml4.dll "  
using   namespace   MSXML2;

#import   "C:\Program   Files\Common   Files\MSSOAp\Binaries\mssoap30.dll "   \
                        exclude( "IStream ",   "IErrorInfo ",   "ISequentialStream ",   "_LARGE_INTEGER ",   \
                                        "_ULARGE_INTEGER ",   "tagSTATSTG ",   "_FILETIME ")
using   namespace   MSSOAPLib30;     //你机器得安装SOAP   Toolkit3.0   ，1.0时，用using   namespace时报错


void   Add()
{
      ISoapSerializerPtr   Serializer;
      ISoapReaderPtr   Reader;
      ISoapConnectorPtr   Connector;
      //   Connect   to   the   service.
      Connector.CreateInstance(__uuidof(HttpConnector30));  
      Connector-> Property[ "EndPointURL "]   =   "http://localhost/123/Service.asmx ";    

      Connector-> Connect();

      //   Begin   the   message.
      //Connector-> Property[ "SoapAction "]   =   "uri:AddNumbers ";
      Connector-> Property[ "SoapAction "]   =   "http://tempuri.org/Service.HelloWorld ";

      Connector-> BeginMessage();

      //   Create   the   SoapSerializer   object.
      Serializer.CreateInstance(__uuidof(SoapSerializer30));

      //   Connect   the   serializer   object   to   the   input   stream   of   the   connector   object.

      Serializer-> Init(_variant_t((IUnknown*)Connector-> InputStream));

      //   Build   the   SOAP   Message.
      Serializer-> StartEnvelope( " ", " ", " ");
      Serializer-> StartBody( " ");
      Serializer-> StartElement( "Add ", "http://tempuri.org/Service.asmx ", " ", " ");    

      Serializer-> StartElement( "NumberOne ", " ", " ", " ");
      Serializer-> WriteString( "5 ");
      Serializer-> EndElement();
      Serializer-> StartElement( "NumberTwo ", " ", " ", " ");
      Serializer-> WriteString( "10 ");
      Serializer-> EndElement();
      Serializer-> EndElement();
      Serializer-> EndBody();
      Serializer-> EndEnvelope();
     
      //   Send   the   message   to   the   XML   Web   service.
      Connector-> EndMessage();            

      //   Read   the   response.
      Reader.CreateInstance(__uuidof(SoapReader30));

      //   Connect   the   reader   to   the   output   stream   of   the   connector   object.
      Reader-> Load(_variant_t((IUnknown*)Connector-> OutputStream),   " ");


      //   Display   the   result.
      printf( "Answer:   %s\n ",   (const   char*)Reader-> RpcResult-> text);
       
}

int   main()
{
      CoInitialize(NULL);
      Add();
      CoUninitialize();
      return   0;
}
 

为什么打印出来的结果是:   Answer:   Soap:   Client,   而不是我预期的:   Answer:   Hello   World呢?

如果要调用我在Web   Service   里写的Add   方法,   如何调用呢(参数及返回结果)?


[解决办法]
http://www.chengxu123.cn/detailt_53794.html
[解决办法]
http://www.cs.fsu.edu/~engelen/soap.html
[解决办法]
http://www.codeproject.com/soap/VSOAPClient.asp