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When a user jumps between pages of an application, the variables stored in the Session object are not purged, and the variables always exist when the user accesses the page in the application. When a user requests a Web page from an application, the Web server automatically creates a
In the process of compiling virtual community and online shopping with ASP, application and session objects play an important role, and the ability to use these two objects flexibly and rationally is the key to improve the quality of the program. The following let the author according to their own experience in this area, to everyone in-depth introduction of the ASP of the two built-in objects. I. Overview
One, Application object
It is equivalent to an application set, similar to a global variable, so it can be shared, primarily to implement page usage information in your application, such as database connection information. Method is a collection, key, and key-value pairs.
such as the Lock method:
You can prevent more than one user from accessing the visits at t
In the previous article, the author gave you a detailed introduction of the ASP built-in object Response use method, in this article, the author will continue to introduce another two very useful and important ASP's built-in object application and session.
In addition to the objects used to send, receive, and process data in an ASP's built-in objects, there are some very useful objects that represent Activ
Before introducing large-scale Internet applications, the session was specifically presented as a separate article.
Why, because it consumes resources with database connections, and basically the beginner + Level 1 programmer knows to shut down the database connection, but session management is very few people pay attention to.
"Enterprise-Class" application ho
When using ASP to write virtual community, online shopping and other programs, application and Session object play an important role, the flexibility and reasonable use of these two objects is the key to improve the quality of the program. The following let the author according to their own experience in this area, to you in-depth introduction of the ASP's two built-in objects.
Overview of members of
In the published series we have discussed two ASP objects: The Application object and the session object, thus having access to the collection, methods, properties, and events provided by the Application object and the Sessions object. This section will study these two objects from the perspective of programming.
· When loading an ASP DLL and responding to the f
session files (which can define the save type of the session itself), linked to the user's office. The Web application stores the data associated with these sessions and lets the data pass along with the user across the page. Visitors to the site are assigned a unique identifier, the so-called session ID. It is either
this rowSet-cookie:testcookie=something from somewhere; path=/The browser creates a cookie file on the client's disk and writes it inside:Testcookie=something from somewhere;This line is what we use Setcookie (' TestCookie ', ' Something from somewhere ', '/'); The result. That means usingHeader (' set-cookie:testcookie=something from somewhere; path=/'); results.-------------------------------------------------Split Line--------------------------------------------------------------------The
Application
1. The application is used to save information shared by all users.
2. In the ASP era, if the data to be stored does not or rarely change during the lifetime of the application, application is the ideal choice. However, in the Asp.net development environment, we put similar configuration data in Web. config
application|session| variable | server Response.Expires = 0;
Response.Buffer = true;
var tpagestarttime = new Date ();
%>
var icount = 0;
var svartype = "";
var oapplication = new Enumerator (application.contents);
var oapp;
for (;! Oapplication.atend (); Oapplication.movenext ()) {
oapp = Oapplication.item ();
Svartype = typeof (Application.Contents (oapp));
++icount;
%>
try{
if (svartype== "Unknown") {
v
Reprinted from: HTTP://WWW.TUICOOL.COM/ARTICLES/QYE3E2ALet's talk briefly about the application and session in ASP.Is the structure of a Web application that we are very familiar with:In this diagram, the Web application running in the Web server is what we call the application
In addition to the objects used to send (Response), receive and process data (requeest), server access (servers) in an ASP object, there are some very useful markup active Object for the server application (application) and individual user information (session).
Session Object
This object accounts for a significant pro
storage.There is also a way to achieve through the encryption of cookies, the user on a server login success, the user's browser to type an encrypted cookie, when the user visited the B server, check whether the session, if there is no problem, if not, to verify that the cookie is valid, If the cookie is valid, the session is rebuilt on the B server. This method is actually very useful, if the site has a l
session does not end, in this case you will open a Login.aspx page in another browser session[" UserName "]=null3. Enter the account password, click the login page Output "Admin---Click Login", if you click to get the session button, then the page only output "Admin---Click Get Session", if the page does not close, op
("session_dbm.php");
ElseIf ($handler = = "MySQL") include ("session_mysql.php");
else ...
Session_Start ();
Session_register ("Count");
......
?>
In authentication, how do I apply a session?
Session can be used for user authentication:
Verify that the user is legitimate:
Session_Start ();
.//Verification process
Session_register ("Reguser");
?>
Check to see if a user is logged on in
case you will open a Login.aspx page in another browser session[" UserName "]=null3. Enter the account password, click the login page Output "Admin---Click Login", if you click to get the session button, then the page only output "Admin---Click Get Session", if the page does not close, open another browser, click the Get Ses
Simple Chat Room program written by ASP. NET using application and session ObjectASP. Net has two important objects: application Object and session object. Application: the object that records Application parameters. This object i
, copy your cookie and put it under the directory of his browser, then he logs on to the website as you. Therefore, cookies can be forged. Of course, the idea is required to copy the cookie file directly to the cookie directory. the browser does not recognize it and has an index. the dat file stores the creation time of the cookie file and whether the file has been modified. Therefore, you must first have the cookie file for the website and cheat the browser from the guaranteed time, I once trie
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