What is the difference between servlet config and servlet
context.
- 19 Answers
- 54408 Views
- TCS, Tech Mahindra, Vertex, I also Faced
- E-Mail Answers
Answer Posted / venkat
1)The "ServletConfig" , Config stands for configuration.it
is about deployment values you have configred for the
servlet.mostly those values which your servlet might want
to access that you dont want to hard-code,like may be a d/b
name.
{one of the reasons you dont want to hard-code"you have to
recompile the entire servlet if you wish to change a single
value},
It is Unique for each servlet(in a layman's language,one
can treat it as local variables to a particular method).
if you wish to change the values,you can do it by modifying
DeploymentDescriptor(in other words:web.xml)
2)ServletContext(they might have named it AppContext
instead of ServletContext):- you have only one
ServletContext for an entire application{NOTE:-.only if the
application is not distributed, in other scenario,you have
one for each JVM}
you can think it as a bulletin-board, where you can
put up messages (called attributes) that other parts of the
application can access.{in a layman's language one can
treat it as a static values}
you can use it to get server info, including the name and
version of the
Container, and the version of the API that’s supported.
| Is This Answer Correct ? | 16 Yes | 5 No |
Post New Answer View All Answers
What is the life cycle of a servlet?
List some life cycle methods of a servlet.
What is called a session?
What are the life cycle methods of the servlet?
What do you mean by the servlet chaining?
Is servlet synchronized?
Explain the methods of request dispatcher in servlet?
When Servlet is unloaded?
What are the difference between session and cookies in servlet? Explain
What are the different methods involved in generic servlet?
What is the major difference between context parameter and context attribute?
What are common tasks performed by Servlet Container?
How to upload a file to the server using servlet?
What is servlet configuration?
What is difference between cookies and httpsession?
