import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Headers extends HttpServlet {
public void doPost(HttpServletRequest req,
HttpServletResponse resp)
throws IOException, ServletException {
resp.setContentType("text/html");
PrintWriter out = resp.getWriter();
out.println("");
Enumeration headers = req.getHeaderNames() ;
while(headers.hasMoreElements()) {
String name = (String) headers.nextElement() ;
out.println(name + ":
" + req.getHeader(name) + "
");
}
out.println("");
}
}