request.setAttribute("name","高春辉");
out.print( request.getAttribute("name"));
<jsp:forward page="delete.jsp"></jsp:forward>
<%
out.print( request.getSession().getAttribute("name"));
%>
Cookie
<%@ page import="java.net.URLDecoder" %><%--
Created by IntelliJ IDEA.
User: gao
Date: 2019/12/15
Time: 12:05
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>$Title$</title>
</head>
<body>
<%
request.setCharacterEncoding("GBK");
request.setCharacterEncoding("GBK");
String welcome="第一次访问";
String []info=new String[]{"","",""};
Cookie[]cook=request.getCookies();
if(cook!=null){
for(int i=0;i<cook.length;i++){
if(cook[i].getName().equals("mosoft")){
String cvalue= URLDecoder.decode(cook[i].getValue());
info=cvalue.split("#");
welcome=",欢迎回来";
}
}
}
%>
<%
String name=info[0];
%>
<%=name+welcome%>
<form action="delete.jsp" method="post">
<ul>
<li>姓名：<input type="text" name="name" value="<%=info[0]%>"></li>
<li>出生日期：<input type="text" name="birthday" value="<%=info[1]%>"></li>
<li>邮箱地址：<input type="text" name="mail" value="<%=info[2]%>"></li>
<li><input type="submit" value="提交"></li>
</ul>
</form>
</body>
</html>
<%@ page import="java.net.URLEncoder" %><%--
Created by IntelliJ IDEA.
User: gao
Date: 2019/12/15
Time: 12:39
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<%
request.setCharacterEncoding("GBK");
request.setCharacterEncoding("GBK");
String name=request.getParameter("name");
String birthday=request.getParameter("birthday");
String mail=request.getParameter("mail");
Cookie mycook=new Cookie("mosoft", URLEncoder.encode(name+"#"+birthday+"#"+mail));
mycook.setMaxAge(60*60*24*365);
response.addCookie(mycook);
%>
表单提交成功
<%
out.print(name+"<br>"+birthday+"br"+mail);
%>
</body>
</html>
Response
重定向
设置输出缓存
处理HTTP文件头
设置页面自动刷新
<body>
<%response.setHeader("refresh","5");%>
</body>
定时跳转网页
<body>
<%response.setHeader("refresh","5;URL=index.jsp");%>
</body>
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