Cookie used for ASP. NET Programming cookie is a Web application
Program It provides a useful method to save user information. For example, when a user accesses your site, you can use cookies to save user preferences or other information, so that
[Determine user logon] is the PHP process correct? Every time I query the data inventory COOKIE, I make my own PHP to determine whether the user is logged on:
[Process]
1. First, determine whether there is a cookie ('uid') & cookie ('uid'). If no
Reprinted: http://www.chinawebanalytics.cn/%E6%8D%8D%E5%8D%ABcookie%E2%80%94%E2%80%94%E6%B2%A1%E6%9C%89cookie%EF%BC%8C%E6%88%91%E4%BB%AC%E4%BB%80%E4%B9%88%E9%83%BD%E6%B2%A1%E6%9C%89%E4%BA%86/
Before starting the text, let's talk a little bit about
HTTP cookies, often referred to as "cookies", have been in existence for a long time, but are still not fully understood. The first problem is that there are many misconceptions that cookies are backdoor programs or viruses, or that they do not know
Access and update cookiesThe value of cookies is much more complex than that of other sets of ASP (such as form and servervariables. Cookie is a small piece of text stored by the browser on the client system, and each request is sent to the server
The similarities and differences between the cookie and session:A. Cookie mechanismCookies are small pieces of text that the server stores on the local machine and are sent to the same server with each request. The IETF RFC 2965 HTTP State
I. Differences between cookie and session mechanisms
Specifically, the cookie mechanism adopts the client-side persistence scheme, while the session mechanism adopts the server-side persistence scheme.
At the same time, we can also see that the
Before I introduce the main body, we'll introduce the basics of cookies
First understand what a cookie is
"Cookies are variables that are stored on the computer of the visitor. This cookie is sent whenever the same computer requests a page through
The difference between cookie mechanism and session mechanism*************************************************************************************Specifically, the cookie mechanism is a scheme for maintaining state on the client side, and the
After upgrading from ASP. NET 3.5 to ASP. NET4, you may not be able to save cookies after three logon attempts (everything works before the upgrade ):
1. Travel 3 is in high speed mode (default mode ).
2. Modified UserAgent in FireFox.
3. Visit the
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