真实路径是null对吗？
5 回答
<%@ 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%>">
<title>request内置对象</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">
-->
</head>
<body>
<h1>request内置对像</h1>
<%
request.setCharacterEncoding("utf-8"); //解决中文乱码问题,无法解决URl传参的乱码问题
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;i<favorites.length;i++)
{
out.println(favorites[i]+" ");
}
}
%><br>
密码：<%=request.getAttribute("password")%><br>
请求的MIME类型：<%=request.getContentType() %><br>
获得协议类型及版本号：<%=request.getProtocol() %><br>
获得服务器主机名字：<%=request.getServerName() %><br>
获得服务器的端口号：<%=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>
请求的真实物理路径:<%=request.getRealPath("request.jsp") %><br>
请求的上下文路径：<%=request.getContextPath() %> <br>
</body>
</html>举报
0/150
提交
取消
