IXMLHTTPRequest

Example

The following Microsoft® JScript® example posts a DOMDocument containing order information to an Active Server Pages (ASP) page on a server and returns the result as a new XML document.

<script language="JScript">
  function PostOrder(xmldoc)
  {    
    var xmlhttp = new ActiveXObject("Msxml2.XMLHTTP.4.0");
    xmlhttp.Open("POST", "http://myserver/orders/processorder.asp", false);
    xmlhttp.Send(xmldoc);
    return xmlhttp.responseXML;
  }
</script>

The ASP page on the server loads the posted XML document, processes the order, and builds a resulting XML document.

<%@ language=javascript %>
<% 
    Response.Expires = -1000;
    // Load the posted XML document.
    var doc = Server.CreateObject("Msxml2.DOMDocument.4.0");
    doc.load(Request);
    var result = Server.CreateObject("Msxml2.DOMDocument.4.0");
    // Now process the order and build the result document.
    Response.ContentType = "text/xml";
    result.save(Response);
%>

Example

The following Microsoft Visual Basic® example creates an XMLHTTP object and asks a server for an XML document. The server sends back an XML document that is displayed by the code snippet.

Private Sub Command1_Click()
  Dim HttpReq As New MSXML2.XMLHTTP40
  
  HttpReq.open "GET", "http://XMLSampleServer/CatalogServer.asp", False
  HttpReq.send
  MsgBox HttpReq.responseText
End Sub

Example

The following C/C++ example creates an XMLHTTP object and asks a server for an XML document. The server sends back an XML document that is displayed by the code snippet.

#import "msxml4.dll"
using namespace MSXML2;

void XMLHttpRequestSample()
{
   IXMLHTTPRequestPtr pIXMLHTTPRequest = NULL;
   BSTR bstrString = NULL;
   HRESULT hr;

   try {
      hr=pIXMLHTTPRequest.CreateInstance("Msxml2.XMLHTTP.4.0");
      SUCCEEDED(hr) ? 0 : throw hr;

      hr=pIXMLHTTPRequest->open("GET", "http://XMLSampleServer/CatalogServer.asp", false);
      SUCCEEDED(hr) ? 0 : throw hr;

      hr=pIXMLHTTPRequest->send();
      SUCCEEDED(hr) ? 0 : throw hr;

      bstrString=pIXMLHTTPRequest->responseText;

      MessageBox(NULL, _bstr_t(bstrString), _T("Results"), MB_OK);

      if(bstrString)
      {
         ::SysFreeString(bstrString);
         bstrString = NULL;
      }

   } catch (...) {
      MessageBox(NULL, _T("Exception occurred"), _T("Error"), MB_OK);
      if(bstrString)
         ::SysFreeString(bstrString);
   }

}

Header and IDL files: msxml2.h, msxml2.idl