Use GZIPOutputStream class over the response.getOutputStream() and set "gzip" option in the HTTP response header:
out = new PrintWriter(new GZIPOutputStream(response.getOutputStream()), false);
response.setHeader("Content-Encoding", "gzip");
Add <servlet-encoding> tag to the servlet block in the application descriptor file (web.xml)
<servlet>
<servlet-name>MyServlet</servlet-name>
<servlet-class>com.test.MyServlet</servlet-class>
<servlet-encoding>gzip</servlet-encoding>
</servlet>
The developer has not to do anything. Compressed content mode should be enabled by user in browser settings.
It is necessary to set "gzip" option in the HTTP response header:
response.setHeader("Content-Encoding", "gzip");
Use GZIPPrintWriter instead of PrintWriter and set "gzip" option in the HTTP response header:
response.setHeader("Content-Encoding", "gzip");
response.getGZIPPrintWriter().println(htmlData);
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