package hall; import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.util.*; /** Shows all the request headers sent on this * particular request. *

* Part of tutorial on servlets and JSP that appears at * http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/ * 1999 Marty Hall; may be freely used or adapted. */ public class ShowRequestHeaders extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); PrintWriter out = response.getWriter(); String title = "Servlet Example: Showing Request Headers"; out.println(ServletUtilities.headWithTitle(title) + "\n" + "

" + title + "

\n" + "Request Method: " + request.getMethod() + "
\n" + "Request URI: " + request.getRequestURI() + "
\n" + "Request Protocol: " + request.getProtocol() + "

\n" + "\n" + "\n" + "

Header Name	Header Value"); Enumeration headerNames = request.getHeaderNames(); while(headerNames.hasMoreElements()) { String headerName = (String)headerNames.nextElement(); out.println("
" + headerName); out.println("	" + request.getHeader(headerName)); } out.println("

\n"); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }