Tomcat: Cache-Control

Question

Jetty has a CacheControl parameter (can be specified webdefault.xml) that determines the caching behavior of clients (by affecting headers sent to clients).

Does Tom

Answer 1

Similar to the post above, except there are some issues with that code. This will disable all browser caching:

import javax.servlet.*;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Date;

public class CacheControlFilter implements Filter {

    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain) throws IOException, ServletException {

        HttpServletResponse resp = (HttpServletResponse) response;
        resp.setHeader("Expires", "Tue, 03 Jul 2001 06:00:00 GMT");
        resp.setDateHeader("Last-Modified", new Date().getTime());
        resp.setHeader("Cache-Control", "no-store, no-cache, must-revalidate, max-age=0, post-check=0, pre-check=0");
        resp.setHeader("Pragma", "no-cache");

        chain.doFilter(request, response);
    }

}

and then map in web.xml as described in Stu Thompson's answer.