Sending Compressed Pages:

EncodedPage.java

public void doGet(HttpServletRequest request,

HttpServletResponse response)

throws ServletException, IOException {

response.setContentType("text/html");

String encodings = request.getHeader("Accept Encoding");

String encodeFlag = request.getParameter("encoding");

PrintWriter out;

String title;

if ((encodings != null) &&

(encodings.indexOf("gzip") !=  1) &&

!"none".equals(encodeFlag)) {

title = "Page Encoded with GZip";

OutputStream out1 = response.getOutputStream();

out =

new PrintWriter(new GZIPOutputStream(out1), false);

response.setHeader("Content Encoding", "gzip");

} else {

title = "Unencoded Page";

out =

response.getWriter();

}

45

Servlets

www.corewebprogramming.com

EncodedPage.java (Continued)

out.println(ServletUtilities.headWithTitle(title) +

"\n" +

"
" + title + "
\n");

String line = "Blah, blah, blah, blah, blah. " +

"Yadda, yadda, yadda, yadda.";

for(int i=0; i<10000; i++) {

out.println(line);

}

out.println("");

out.close();

}

46

Servlets

www.corewebprogramming.com

23