Hi,
Simple question, I want to receive compressed data from a server using
AJAX.
At the client I make an xmlHttpRequest. Next I want to set the
accept-header to Gzip, but I keep getting errors on that under opera.
At server-side I first check the accept-header, if it supports gzip I
make a ZIP-stream and set the content-encoding to gzip. Normaly I would
think the browser itself can handle it and give the uncompressed
response.
Clientcode (javascript):
xmlHttp = =new XMLHttpRequest( );
xmlHttp.onready statechange = stateChange;
//don't work
xmlHttp.setRequ estHeader("Acce pt-Encoding", "gzip");
xmlHttp.open("G ET", "servlet", false);
xmlHttp.send(nu ll);
function stateChange() {
if (xmlHttp.readyS tate==4 || xmlHttp.readySt ate=="complete" ) {
var response = xmlHttp.respons eText;
alert(response) ;
var uncompressedRes ponse = response;
document.getEle mentById("code" ).innerHTML =
"<p>"+uncompres sedResponse+"</p>";
}
}
Servercode (servlet):
public void doGet(HttpServl etRequest request, HttpServletResp onse
response) {
String text = "sometext";
response.setCon tentType("text/html");
OutputStream out = null;
String encoding = request.getHead er("Accept-Encoding");
if (encoding != null && encoding.indexO f("gzip") != -1)
{
response.setHea der("Content-Encoding" , "gzip");
out = new GZIPOutputStrea m(response.getO utputStream());
}
else if (encoding != null && encoding.indexO f("compress") != -1)
{
response.setHea der("Content-Encoding" , "compress") ;
out = new ZipOutputStream (response.getOu tputStream());
}
else
{
out = response.getOut putStream();
System.out.prin tln("gewone uitvoerstroom") ;
}
byte[] b = text.getBytes() ;
out.write(b);
}
What am I doing wrong?
thx in advance
