A Cookie is small information sent by a web server to a web client. Cookies are saved at the client side for the given domain and path. The cookie file persists on the client machine and the client browser returns the cookies to the original.
In cookies technique, we add cookie with response from the servlet. So cookie is stored in the cache of the browser. After that if request is sent by the user, cookie is added with request by default. Thus, we recognize the user as the old user.
Cookies are the mostly used technology for session tracking. Cookie is a key value pair of information, sent by the server to the browser. … Whenever the browser sends a request to that server it sends the cookie along with it. Then the server can identify the client using the cookie.
The two types of cookies follow: Session cookies – Session cookies are stored in memory and are accessible as long as the user is using the web application. … Permanent cookies – Permanent cookies are used to store long-term information such as user preferences and user identification information.
There are three types of computer cookies: session, persistent, and third-party. These virtually invisible text files are all very different. Each with their own mission, these cookies are made to track, collect, and store any data that companies request.
The cookie file is stored in your browser’s folder or subfolder. Your browser accesses the cookie file again when you visit the website that created the cookie file.
Why is session Tracking needed?
Session Tracking is a way to maintain state (data) of an user. It is also known as session management in servlet. Http protocol is a stateless so we need to maintain state using session tracking techniques. Each time user requests to the server, server treats the request as the new request.
What are all the ways for session tracking?
Methods of Session Tracking
- Hidden Form Field.
- URL Rewriting.
What are the types of session tracking?
There are four possible ways of implementing session tracking.
- Cookies Cookies are the most popular method of implementing session tracking. …
- Hidden Form Field Hidden fields in the HTML code can also be used to insert session tracking for certain URLs. …
- URL Rewriting …
- HTTP Session