request.getHeader(“User-agent”)返回客户端浏览器的版本号、类型 getHeader(String name)：获得http协议定义的传送文件头信息， request. getMethod()：获得客户端向服务器端传送数据的方法有GET、POST、PUT等类型 request. getRequestURI()：获得发出请求字符串的客户端地址 request. getServletPath()：获得客户端所请求的脚本文件的文件路径 request. getServerName()：获得服务器的名字 request.getServerPort()：获得服务器的端口号 request.getRemoteAddr()：获得客户端的IP地址 request.getRemoteHost()：获得客户端电脑的名字，若失败，则返回客户端电脑的IP地址 request.getProtocol()： request.getHeaderNames()：返回所有request header的名字，结果集是一个Enumeration（枚举）类的实例
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<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%
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();
%>
<%=o%> | <%=infoMap.get(o)%> |