Java request对象
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2022-06-11 15:46:52
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index1.jsp
<%@ page language="java" import="java.util.*" pageEncoding="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>My JSP 'index1.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">
-->
</head>
<body>
This is my JSP page. <br>
<form action="index.jsp" method="get">
用户名：<input name="name" alt="abc">
密码:<input name="psd">
<input type="submit" value="提交">
</form>
</body>
</html>
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="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>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">
-->
</head>
<body>
This is my JSP page. <br>
<a>我的第一个页面！！！</a>
<% out.print(request.getParameter("name"));
out.print(request.getParameter("psd"));
request.setAttribute("lk", "李凯");
out.print(request.getAttribute("lk").toString());
%>
<br>
<!-- 只执行一次 -->
<%!int i=0; %>
服务主机名：<%=request.getServerName() %><br>
端口号：<%=request.getServerPort() %><br>
ip地址：<%=request.getRemoteAddr() %><br>
请求的主机名：<%=request.getRemoteHost() %>
返回请求协议：<%=request.getProtocol() %>
<%i=i+1; %>
访问次数： <%=i %>
</body>
</html>
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