Ramesh Sukka

• Nov 17th, 2007

 

Servlets and JSP are server side technologies and should be invoked when we receive request from client browser so web container will act as interface between client request and Servlets and jsp in other words Servlets and jsp will reside under web container in order to server client request. hence we required web container in order to invoke Servlets or jsp

Neha

• Nov 18th, 2007

 

Servlet and JSP are J2EE web components and Servlet is there to handle the request and give response to clients .. web container is the medium for communication between clients and servlet that is recieving it and sending it to servlet and servlet handle the request and send the response to container that's why web container is essential.

Ramesh Sukka

• Nov 22nd, 2007

 

Hi Neha,

Can't JSP alone handle the web request (without having servlets)? Should only servlet handle web request?

bharaniprasanth

 Profile Answers by bharaniprasanth Questions by bharaniprasanth

• Mar 10th, 2008

 

All of you are wrong...The main purpose of Servlet Container is to provide the resources needed by the servlet while execution...These resource includes RAM allocated, Data Object Pools, Network connections and many more...Container is like mother of all J2ee components..It nurtures them as long as they are alive...

ramesh.sukka

 Profile Answers by ramesh.sukka 

• Mar 27th, 2008

 

Please be carefully while you com to conclusion on other users comment. First try to understand the question, here the question is, why do we require Web container to deploy servlet or jsp...i think you understood that the question is about purpose of servlet container....However, servlet container will pass information to web container and web container will manage the network level services like connection pooling.

Regards,
Ramesh Sukka.

sampra

 Profile Answers by sampra 

• Mar 30th, 2008

 

Servlets and JSP are server side technologies and should be invoked when we receive request from client browser so web container will act as interface between client request and Servlets and jsp in other words Servlets and jsp will reside under web container in order to server client request. hence we required web container in order to invoke Servlets or jsp

srini235

 Profile Answers by srini235 

• Jul 4th, 2008

 

can you play a cricket match on a road? if you find the answer for this quaestion you well be able to answer the question the one which host.

mullangi13

 Profile Answers by mullangi13 Questions by mullangi13

• Jul 28th, 2008

 

Compulsorily we need to deploy webresources(Servlet/JSP), in order to execute Servlet/JSP because the web/application server implemented Servlet/JSP APIs. They will not execute in command prompt like standalone applications.

konnipati.sivaa

 Profile Answers by konnipati.sivaa 

• Jul 29th, 2008

 

We cannot run the application like simple java programs and it will not execute in command prompt like standalone applications. Compulsorily we need to deploy the webresources like Servlet/JSP in webcontainer, container is is heart
of the servers .if u send a request to server first container will create a object and assign request .this servlet and JSP were using creation of webapplications this webapplications must deploy the webcontainer.
In order to execute Servlet/JSP because the web/application server implemented Servlet/JSP APIs.

vinayroz

 Profile Answers by vinayroz 

• Aug 5th, 2008

 

Servlet and JSP both reside in web container. Whenever client send a request thro web server, request is passed to container which in turn invokes the required JSP / Servlet page. Beside this web container imposes all security constraints, connection pooling etc to the application.

sathishbabu.k

 Profile Answers by sathishbabu.k 

• Aug 19th, 2008

 

The two (JSP, Servlet) cannot have the main method, running only the lifecyle, so we use running the application via container only. Container like a tomcat server.

chandrahas.koyari

 Profile Answers by chandrahas.koyari 

• Jul 21st, 2009

 

We need web container because our Servlet just does a part of whole thing (creating response to a request) rest is done by server that is
1. Accepts response from client formatted HTTP protocol
2. Map that request to ServletRequest
3. Calling service()
4. Mapping ServletResponse to response (HTTP) because browser don’t know ServletResponse
5. And much more like implementation of HTTP, providing classes and interfaces required

so we only need to write Servlet if we have a web server because rest is handled by server.

But it must be noted that we can write a J2SE program to implement a server but you need to know much like Socket, low level protocol handling etc.

ishar.Gsingh

 Profile Answers by ishar.Gsingh 

• Dec 19th, 2009

 

Containers are like window for Servlet and JSP's to ourside world. As explain by many answers it provides interface to ourside world. Few advantage of deploying JSP and servlet in container is:

1) Communication between webserver and JSP or servlet is handled automatically.

2) Multithreading is automatically handled by container, without container you have to write your own code to hadle multiple requests to the servlet or JSP.

3) Resource management is big one as container will handle the construction or destruction of servlets according to the resource availability.

Many others.

Jyotshna Pardhia

• Nov 16th, 2011

 

The web container is a Java runtime environment which is responsible for managing life cycle of JSP pages and Servlets. A web container is responsible for instantiating, initializing and invoking Servlets and JSP pages. The web container implements Servlet and JSP API and provide infrastructure for deploying and managing web components.

The web container is part of web server or application server that provides the network services over which request and response are sent. A Web container is may be built into the web server or it may be installed as an additional component to a web server. As per the specification, all web containers must support HTTP protocol however it may support addition protocols like HTTPS. Web container is also called servlet container or servlet engine.

sankh

 Profile Answers by sankh 

• Sep 7th, 2012

 

Server site application contains web resources such as active web resources and passive web resources. Those resides in server passive web resource execution done at browser and active web resources are executed at server site. When request goes for Active web resources such as servlet or dynamic pages container come into flash.
Passive web resources are HTML, JavaScript those are executed at browser side. That is why there is no need of container.

karna poreddy

• Jan 22nd, 2014

 

Servlet & JSP are heavy weight Technologies because unless we start web server(web container) or application server we cannot activate either servlet container or JSP Container.

Spring is lightweight:
-----------------------------
Mainly spring is used for business logic. The same business logic if we try to develop using
EJB,Servet and JSP then its compulsory to have support of any application server or web server like weblogic or Tomcat . But the
same logic can be executed in Spring without help of any web server or application server.
Because Spring provides its own containers in the form of pre defined classes.