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JSP和JSTL获取服务器参数示例

2017年12月12日  | 移动技术网IT编程  | 我要评论
复制代码 代码如下:

<%@ page language="java" import="java.util.*" pageencoding="utf-8"%>

<!doctype html public "-//w3c//dtd html 4.01 transitional//en">
<html>
<head>
<title>jsp和jstl获取服务器参数</title>
</head>
<body>
jsp方式<br/>
<%

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("<br>"); }%>
<br/>

jstl方式<br/>
${pagecontext.request} |取得请求对象<br>
${pagecontext.session} |取得session对象<br>
${pagecontext.request.querystring} |取得请求的参数字符串<br>
${pagecontext.request.requesturl} |取得请求的url，但不包括请求之参数字符串<br>
${pagecontext.request.contextpath} |服务的web application的名称<br>
${pagecontext.request.method} |取得http的方法(get、post)<br>
${pagecontext.request.protocol} |取得使用的协议(http/1.1、http/1.0)<br>
${pagecontext.request.remoteuser} |取得用户名称<br>
${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<br>
${pagecontext.session.id} |取得session的id<br>

${header["user-agent"]}|用户浏览器的版本<br/>
${header["host"]}|ip<br/>
${pagecontext.request.remoteaddr } |取得用户的ip地址<br>
${pagecontext.servletcontext.serverinfo}|取得主机端的服务信息<br>
${pagecontext.request.serverport}|端口信息<br>
${pagecontext.request.servername}|服务器名称<br>
${pagecontext.request.remotehost}|客户机名称<br>
</body>
</html>

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