VC6开发Web Services 客户端
VC6开发Web Services 客户端 下面是个控制台的样例
Toolkit3.0 终于给出VC6的样例了，1.0只能看到VB和ASP的
#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)); //HttpConnector30 失败，无法这样创建Connector，CXX0017 Error :Symbol “HttpConnector30“ not found（摇头、叹气！）
Connector->Property['EndPointURL'] = 'http://MyServer/Soap3DocSamples/DocSample1/Server/DocSample1.wsdl'; //这个当然得改成您自己的拉
Connector->Connect();
// Begin the message.
//Connector->Property['SoapAction'] = 'uri:AddNumbers';
Connector->Property['SoapAction'] = 'http://tempuri.org/DocSample1/action/Sample1.AddNumbers';
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('AddNumbers','http://tempuri.org/DocSample1/message/','',''); //这是本地的Web Services,实际中要指定命名空间
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;
}
更改 EndPointURL 属性的值. 在URL里指定你的服务器名.
OK
总结一下必要的关键步骤
1.导入类型库
2.需要创建一个SoapConnector
3.下一步创建SoapSerializer
4.下一步把消息附加到SoapConnector的输入流
5.下一步读取结果.要读取服务器的回复,客户端应用需要使用SoapReader,
6.SoapReader被连接到SoapConnector输出流
7.用IXMLDOMElement对象可以从SoapReader里读到服务器的回复
附，SOAP ToolKit 3.0 下载地址：http://download.microsoft.com/download/xml/Install/3.0/W982KMeXP/EN-US/SoapToolkit30.EXE
