JavaWeb基础 Cookie 发送和接收cookie

时间：2017-12-06 21:54:33 阅读：235 评论：0 收藏：0 [点我收藏+]

标签：alt jstl win 技术分享 lock import 基础 class ons

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       javaEE：7
       javaSE：1.8
          JSTL：1.2.2
      server：tomcat 8.5
    browser：Chrome/Firefox
             os：windows7 x64
            ide：MyEclipse 2017

项目结构

技术分享图片

addCookie.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 ‘addCookie.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>
    <h2>客户端进行保存cookie</h2>
	<% 
    	// cookie就是一个请求头
    	
    	// 创建cookie
    	Cookie cookie = new Cookie("time","2017-11-20");
    	// 添加cookie
    	response.addCookie(cookie);
    	
    	cookie = new Cookie("name","cnblogs-jizuiku");
    	response.addCookie(cookie);
    %>
  </body>
</html>

getCookie.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 ‘addCookie.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>
	<h2>服务器获取cookie</h2>
	<%
		Cookie[] cookies = request.getCookies();

		// 防止NPE
		if (cookies != null) {
			for (Cookie c : cookies) {
				out.print(c.getName() + " : " + c.getValue() + "<br />");
			}
		}
	%>
</body>
</html>

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