Use cookies to log logins, the next time you log in to remember the last login, use the session to remember the login information and verify the login, prevent the use of the URL to open the site, and to implement the LOGOUT function

Tag:highlight   src    Validation    str   write    ddc   strong    system    log   

<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "pageencoding=" UTF-8 "%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >
　　
<% @page import= "Com.hanqi.web.ShoppDAO"%><%@ page language= "java" contenttype= "text/html; Charset=utf-8 "pageencoding=" UTF-8 "%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >Guide Packageif (sd.checklogin (name, password)) {//out.write ("Login succeeded"),//non-cached direct send Response.getwriter (). Write ("Login successful");// Create Cookiecookie ck= new Cookie ("name", name),//Set Expiration Time Ck.setmaxage (10*24*60*60);//Send Response.addcookie (CK);// Create Sessionsession.setattribute ("name", name);//page Jump Response.sendredirect ("xtmain.jsp");} Else{out.write ("Login Failed");//Jump back to login page after 2 seconds response.setheader ("Refresh", "2; Url=shoppmain.jsp ");}} %></body>
　　
<% @page import= "java.net.URLDecoder"%><%@ page language= "java" contenttype= "text/html; Charset=utf-8 "    pageencoding=" UTF-8 "%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >
　　
<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "    pageencoding=" UTF-8 "%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >
　　
<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "    pageencoding=" UTF-8 "%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >
　　
If no action is taken for two seconds, it will be exited and automatically returned to the main screen, preventing URLs from being used to access the site.
Note: In the JSP, all the racks are placed under the Lib folder under Web_inf,
Use cookies to log logins, the next time you log in to remember the last login, use the session to remember the login information and verify the login, prevent the use of the URL to open the site, and to implement the LOGOUT function