Difference between HttpServlet and GenericServlet

j2ee question available in site find out please

the method that u have defined for servlet mapping is not correct. i am not satisfied with it.

aam voi saav tamne kai bhaan pade che ke nai su magaj nu dahi karo cho

you are rong buddy the above method which definded by you that all the method are rong yaar

firt diffrance

http is protocol dependent
genric is protocol indipendent

http use service() method to handle request
genric use doGet() or doPost() method to handle request

http support cookie session url Rewriting while
genric does not support

so pls change above method which is definded by you ok

Your site is vary good.i am get more knowledge of your exa. Gernic and http servlet.

When httpservlet extends genericservlet——–> why httpservlet is not providing support for protocols other than http as parent class(genericServlet) supports FTP,SMTP….e.t.c..,

Your site is superb ..complete knowledge provider.

What is the Basic difference between Servlet and Jsp.?

Again another article explained in a simple and sophisticated way.
However, I would like to see details on service(). GenericServlet implements service() method from Servlet interface. HttpServlet extends that method. It first checks the method of form post in HTML form (GET/POST) and then delegates the processing to doGet() and doPost() methods. These can be (usually are) overriden. Am I correct?

Still, great work Joe. I like your blog a lot.

your faculty having less knowleadge about servlet and provides the basic knowleadge.

Hey, this site is good.
I m gaining more about java from this site.

Keep it up…….

good

Hello,

It’s good content on your site… Specially I like the arrangement of content and website look..

Regards
Chetan Pagar

thanks this is really a good effort i’m satisfied with your answer

Generic servlet is a protocal independent, http is the propthe
Protocal dependent(HTTP protocol), httpServlet is a
sub class of Generic servlet, generic servlrt class
is a abstract class because of service() is not not implemented in the generic servlet.IN httpServlet
service methods has been implemented. 2 service
methods are implemented in HTTP servlet one is

public void service(ServletRequest,Servlet Response)
another is
protected void service(HTTPServletRequest,
HttpServletResponse).

So with out having the service() method, we can
deploy the servlet in case of httpServlet.

in case of GenericServlet with out having the service() method, we can not
deploy the servlet .

Generic servlet is a protocal independent, http is the propthe
Protocal dependent(HTTP protocol), httpServlet is a
sub class of Generic servlet, generic servlrt class
is a abstract class because of service() is not not implemented in the generic servlet.IN httpServlet
service methods has been implemented. 2 service
methods are implemented in HTTP servlet one is

public void service(ServletRequest,Servlet Response)
another is
protected void service(HTTPServletRequest,
HttpServletResponse).

So with out having the service() method, we can
deploy the servlet in case of httpServlet.

in case of GenericServlet with out having the service() method, we can not
deploy the servlet .

sv on June 15th, 2011 7:00 am

What is the difference between GenericServlet and HttpServlet?
GenericServlet is for servlets that might not use HTTP, like for instance FTP service.As of only Http is implemented completely in HttpServlet. The GenericServlet has a service() method that gets called when a client request is made. This means that it gets called by both incoming requests and the HTTP requests are given to the servlet as they are.

all questions are not truely……..

thanks buddy thats really helpfull 4 me

good article
its is a very important interview question in servlets

Thanx dear…..
Its a very impotant interview question and its very easy to set in my mind this topics……

Thanks for dis also

This site is really great and authentic too…..

1361

this is helping me a lot thank you for keeping all these

your solution is good but not the best as we expect from your side. please donot give us bookish knowledge tell what are happening inside the httpservlet and generic servlet.please sir elaborate the topic..

GenericServlet belongs to javax.servlet package
GenericServlet is an abstract class which extends Object and implements Servlet, ServletConfig and java.io.Serializable interfaces.
The direct subclass to GenericServlet is HttpServlet.It is a protocol-independent servlet.
To write a GenericServlet you need abstract service() to be overridden.

HttpServlet:

HttpServlet belongs to javax.servlet.http package
This is an abstract class which extends GenericServlet and implements java.io.Serializable
A subclass of HttpServlet must override at least one method of doGet(), doPost(),doPut(), doDelete(), init(), destroy(), getServletInfo()

Its really fantastic ….now i got a clear idea about the Genric and HttpServlet …thanks for your explanation…..:

Nice one:-)

bad

I am not satiafied

1(a).this generic servlet class implements from servlet and servletconfig interfaces
1(b).http servlet extended from generic servlet
2(a)generic servlet overrides service()
2(b)http is overrides anyone of 7 methods that are
doGet(),doPost(),doPut(),delete(),init(),Destroy(),modify()
3(a)session tracking possible from http only
4(a)http is protocol dependent i.e only supports http
4(b)generic is protocol independent

nice one with good explanation!

what is the use of Generic servlet class even though we have servlet interface

its nice…….

That Cool…But needs some examples to explain that will be Good….

How To achive(I know session cant be used in Generic ) session in Generic servlet by using ftp protocal

How To achive(I know session cant be used in Generic ) session in Generic servlet by using ftp protocal

when GenericServlet implements Serializable, then what is the need to re-implement it in HttpServlet class?

hello
please tell me

when we send the request to server for servlet then is it http request or https request..?

please tell me the complete flow of http and htts ….

please tell me the complete flow of http and htts ….and etc

ya this site is really good this site containing very useful information

great work joe..keep it up man

Your site is very good, it describe real language of servlet.