客户端的请求信息被封装在request对象中,通过它才能了解客户的需求,然后做出响应。它是HttpServletRequest类的实例。request对象具有请求域,即完成客户端的请求之前,该对象一直有效。
%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
html>
head>
base href="%=basePath%>" rel="external nofollow" >
title>My JSP 'index.jsp' starting page/title>
meta http-equiv="pragma" content="no-cache">
meta http-equiv="cache-control" content="no-cache">
meta http-equiv="expires" content="0">
meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
meta http-equiv="description" content="This is my page">
!--
link rel="stylesheet" type="text/css" href="styles.css" rel="external nofollow" >
-->
/head>
body>
h1>request内置对象/h1>
%
request.setCharacterEncoding("utf-8"); //解决中文乱码问题,无法解决URL传递中文出现的乱码问题。
request.setAttribute("password", "123456");
%>
用户名:%=request.getParameter("username") %>br>
爱好 :%
if(request.getParameterValues("favorite")!=null)
{
String[] favorites = request.getParameterValues("favorite");
for(int i=0;ifavorites.length;i++)
{
out.println(favorites[i]+"nbsp;nbsp;");
}
}
%> br>
密码:%=request.getAttribute("password") %>br>
请求体的MIME类型:%=request.getContentType() %>br>
协议类型及版本号: %=request.getProtocol() %>br>
服务器主机名 :%=request.getServerName() %>br>
服务器端口号:%=request.getServerPort() %>BR>
请求文件的长度 :%=request.getContentLength() %>BR>
请求客户端的IP地址:%=request.getRemoteAddr() %>BR>
请求的真实路径:%=request.getRealPath("request.jsp") %>br>
请求的上下文路径:%=request.getContextPath() %>BR>
/body>
/html>