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cookie与session的区别

时间:2015-07-26 12:38:15      阅读:139      评论:0      收藏:0      [点我收藏+]

标签:session   cookie   

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<%@page import="java.net.URLDecoder"%>
<%@ 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>My JSP 'login.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>
    <form action="dologin.jsp" name="loginForm" method="post">
    	<table>
    	<%
    	request.setCharacterEncoding("utf-8");
    	String username = "";
    	String password = "";
    	Cookie[] cookies = request.getCookies();
    	if(cookies != null && cookies.length > 0){
    		for(Cookie c: cookies){
    			if("username".equals(c.getName())){
    				username = URLDecoder.decode(c.getValue(), "utf-8");
    			}
    			if("password".equals(c.getName())){
    				password = URLDecoder.decode(c.getValue(),"utf-8");
    			}
    		}
    	}
    	%>
    		<tr>
    			<td>用户名:</td>
    			<td><input type="text" name="username" value="<%=username%>"/></td>
    		</tr>
    		<tr>
    			<td>密码:</td>
    			<td><input type="password" name="password" value="<%=password%>"/></td>
    		</tr>
    		<tr>
    			<td colspan="2" align="center"><input type="checkbox" name="useCookie">下次自动登陆</td>
    		</tr>
    		<tr>
    			<td colspan="2" align="center">
    				<input type="submit" value="登陆"/>
    			</td>    			
    		</tr>
    	</table>
    </form>
  </body>
</html>

<%@page import="java.net.URLEncoder"%>
<%@ 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>My JSP 'dologin.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>
  	<%
  	request.setCharacterEncoding("utf-8");
	  	String username = "";
		String password = "";
		if(request.getParameter("username") != null){
			username = URLEncoder.encode(request.getParameter("username").toString(),"utf-8");
		}
		if(request.getParameter("password") != null){
			password = URLEncoder.encode(request.getParameter("password").toString(),"utf-8");
		} 
  		if(request.getParameter("useCookie") != null){
  			Cookie c1 = new Cookie("username", username);
  			Cookie c2 = new Cookie("password", password);
  			c1.setMaxAge(864000);
  			c1.setMaxAge(864000);
  			response.addCookie(c1);
  			response.addCookie(c2);
  		}else{
  			Cookie[] cookies = request.getCookies();
  	    	if(cookies != null && cookies.length > 0){
  	    		for(Cookie c: cookies){
  	    			if("username".equals(c.getName()) || "password".equals(c.getName())){
  	    				c.setMaxAge(0);
  	    				response.addCookie(c);
  	    			}  	    			
  	    		}
  	    	}
  		}
  	%>
  	<a href="userInfo.jsp">查看用户信息</a>    
  </body>
</html>

<%@page import="java.net.URLDecoder"%>
<%@page import="java.net.URLEncoder"%>
<%@ 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>My JSP 'dologin.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>
    <%
    	String username = "";
    	String password = "";
    	Cookie[] cookies = request.getCookies();
    	if(cookies != null && cookies.length > 0){
    		for(Cookie c: cookies){
    			if("username".equals(c.getName())){
    				username = URLDecoder.decode(c.getValue(),"utf-8");
    			}
    			if("password".equals(c.getName())){
    				password = URLDecoder.decode(c.getValue(),"utf-8");
    			}
    		}
    	}
    %>
    用户名:<%=username %><br/>
    密码:<%=password %>
  </body>
</html>


版权声明:本文为博主原创文章,未经博主允许不得转载。

cookie与session的区别

标签:session   cookie   

原文地址:http://blog.csdn.net/bluzelee2011/article/details/47067057

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