Ray
Posts: 2
Nickname: ray
Registered: Mar, 2002
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Re: difference between Application Servers and Web Servers
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Posted: Mar 14, 2002 9:13 AM
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It is a simple differentiation. A Web Server responds to requests from a HTTP client (usually a browser.) It sends html (primarily) to the browser in response to requests from the user (URL clicks, submit buttons etcetera.) An application server provides an environment to provide services to a user. Some business like an insurance agency system, a book seller or a such would write an application that runs in an application server. The app server provides the framework that allows the business to be conducted.
In general, however an app server would not exist independently of a web server. The app server would have a webserver to 'talk' to the users and the web server would then 'talk' to the app server to get things done.
Most app servers today use JSP (java server pages) as the 'web side' and EJB (enterprise java beans) as the 'app or business side.'
Good Luck,
Ray
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