<%@ page language="java" contentType="text/plain; charset=UTF-8" pageEncoding="UTF-8" trimDirectiveWhitespaces="true" %> <% java.util.Enumeration names = request.getHeaderNames(); while (names.hasMoreElements()) { String name = names.nextElement(); out.println(name + ": " + request.getHeader(name)); } %> request.getScheme(): <%=request.getScheme()%>