<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>            JSP方式
  <%String SERVER_NAME = request.getServerName();String SERVER_SOFTWARE = getServletContext().getServerInfo();String SERVER_PROTOCOL = request.getProtocol();Integer SERVER_PORT = request.getServerPort();String REQUEST_METHOD = request.getMethod();String PATH_INFO = request.getPathInfo();String PATH_TRANSLATED = request.getPathTranslated();String SCRIPT_NAME = request.getServletPath();String DOCUMENT_ROOT = request.getRealPath("/");String QUERY_STRING = request.getQueryString();String REMOTE_HOST = request.getRemoteHost();String REMOTE_ADDR = request.getRemoteAddr();String AUTH_TYPE = request.getAuthType();String REMOTE_USER = request.getRemoteUser();String CONTENT_TYPE = request.getContentType();Integer CONTENT_LENGTH = request.getContentLength();String HTTP_ACCEPT = request.getHeader("Accept");String HTTP_USER_AGENT = request.getHeader("User-Agent");String HTTP_REFERER = request.getHeader("Referer");HashMap infoMap = new HashMap();infoMap.put("SERVER_NAME", SERVER_NAME);infoMap.put("SERVER_SOFTWARE", SERVER_SOFTWARE);infoMap.put("SERVER_PROTOCOL", SERVER_PROTOCOL);infoMap.put("SERVER_PORT", SERVER_PORT);infoMap.put("REQUEST_METHOD", REQUEST_METHOD);infoMap.put("PATH_INFO", PATH_INFO);infoMap.put("PATH_TRANSLATED", PATH_TRANSLATED);infoMap.put("SCRIPT_NAME", SCRIPT_NAME);infoMap.put("DOCUMENT_ROOT", DOCUMENT_ROOT);infoMap.put("QUERY_STRING", QUERY_STRING);infoMap.put("REMOTE_HOST", REMOTE_HOST);infoMap.put("REMOTE_ADDR", REMOTE_ADDR);infoMap.put("AUTH_TYPE", AUTH_TYPE);infoMap.put("REMOTE_USER", REMOTE_USER);infoMap.put("CONTENT_TYPE", CONTENT_TYPE);infoMap.put("CONTENT_LENGTH", CONTENT_LENGTH);infoMap.put("HTTP_ACCEPT", HTTP_ACCEPT);infoMap.put("HTTP_USER_AGENT", HTTP_USER_AGENT);infoMap.put("HTTP_REFERER", HTTP_REFERER);Iterator it = infoMap.keySet().iterator();%><%while (it.hasNext()) {Object o = it.next();%>　　<%=o%>　　<%=infoMap.get(o)%>　　<% out.println("
"); }%>
JSTL方式
${pageContext.request}                  |取得请求对象
${pageContext.session}                  |取得session对象
${pageContext.request.queryString}      |取得请求的参数字符串
${pageContext.request.requestURL}       |取得请求的URL，但不包括请求之参数字符串
${pageContext.request.contextPath}      |服务的web application的名称
${pageContext.request.method}           |取得HTTP的方法(GET、POST)
${pageContext.request.protocol}         |取得使用的协议(HTTP/1.1、HTTP/1.0)
${pageContext.request.remoteUser}       |取得用户名称
${pageContext.session.new}              |判断session是否为新的，所谓新的session，表示刚由server产生而client尚未使用
${pageContext.session.id}               |取得session的ID
${header["User-Agent"]}|用户浏览器的版本
${header["Host"]}|IP
${pageContext.request.remoteAddr }      |取得用户的IP地址
${pageContext.servletContext.serverInfo}|取得主机端的服务信息
${pageContext.request.serverPort}|端口信息
${pageContext.request.serverName}|服务器名称
${pageContext.request.remoteHost}|客户机名称