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
