ApplicationServer will take care of all these issues like Security Trasaction MultiThreaidng Resource pooling etc..

In webserver it is not possible..

Simply speaking >AppServer WebServer+EJB container

Webserver:

A Web server handles the HTTP protocol. When the Web server receives an HTTP request it responds with an HTTP response such as sending back an HTML page. To process a request a Web server may respond with a static HTML page or image send a redirect or delegate the dynamic response generation to some other program such as CGI scripts JSPs (JavaServer Pages) servlets ASPs (Active Server Pages) server-side JavaScripts or some other server-side technology. Whatever their purpose such server-side programs generate a response most often in HTML for viewing in a Web browser.

Application Server:

As for the application server according to our definition an application server exposes business logic to client applications through various protocols possibly including HTTP. While a Web server mainly deals with sending HTML for display in a Web browser an application server provides access to business logic for use by client application programs. The application program can use this logic just as it would call a method on an object

A web server itself is an application deployed inside an Application Server.

As explained in earlier response a Web Server is a software that serves to access internet or intranet.

It provides HTTP message handling for an application server ( J2EE like Web Sphere).

Application Server is a system that provides the execution enviroment for the entire system.That is the core of network computing / Architechtures.

Hi

Application Server is used to Deploy an Application and then that application can be accessed using webserver

While WebServer is used to Access web servies through internet or intranet.

webserver is used only for jsp and servlets and for static functionality it has limited functionality and it doesn't provide any security persistence and it doesn't support EJB and JMS and JAAS like other functionality

whereas Application server provide all functionalities

i want to know the actual diff bet webserver and application server

Web Server & Application Server are different in the following aspects. The Web Server does not support the concept of multi-threading. In Application Server we have features like connection pulling isolation pulling multi-threading and majorly the Transaction feature which is not there in Web Server. An Application Server may include a Web Server inside it.

hi

web server is multi threaded else how can it support servlet threaded model.Obviously application server is multi threaded i agree to that. This cannot be a point of difference between app and web server.

Web Server ->we can run only servlets jsp and html pages but not EJB'S

Example of web server are Tomcat.

Application Server> we can run servlets html and jsp pages and we can also run and deploy EJB's in Application servers which is not possible in webserver