What is forward() and include() of servlets
RequestDispatcher interface?
- 6 Answers
- 21968 Views
- HCL, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / katamraju
Forward():By using forward() method of RequestDispatcher ,ew
can forward a request to a another resource(i.e
servlets,jsp,html....),at finally we can see only called
resource output(i.e second resource output )
For exm. we have two servlets,(servlet1 and servlet2) we are
forwarding request from servlet1 to servlet2, in this case
we can see only servlet2 output.
include():By using include() method of RequestDispatcher we
can forward a request from servlet12 to servlet2 ,in this
case we can see both outputs(i.e servlet1 and servlet2).
in both case single request and single response.
| Is This Answer Correct ? | 41 Yes | 9 No |
Answer / srilatha
Forward():
In ServletRequestDispatcher ,By using forward() method,we
can forward a request to a another resource(i.e
servlets,jsp,html....),at finally we can see only called
resource output(i.e second resource output,i.e response)
For exm. we have two servlets,(servlet1 and servlet2) we are
forwarding request from servlet1 to servlet2, in this case
we can see only servlet2 output(i.e response for the
request).
in forward()it will take only servlet1 output.
(ex: in servlet we a\are having some name like srinu with
background color blue, it will take only the name not the
color)
include():
By using include() method of RequestDispatcher we
can forward a request from servlet1 to servlet2 ,in this
case we can see both outputs(i.e servlet1 and servlet2).
in include()it will include the servlet1 page and
forwarding to the servlet2)
in this case we can see both servlet1& servlet2 as the
part of response.
| Is This Answer Correct ? | 15 Yes | 1 No |
Answer / nagababu
include() we have used include method for dispatch the
request, The browser will get the output generated by
Calling Servlet and Called Servlet.
forward() we have used forward method for dispatch request,
The browser will get the output generated by Called Servlet
and Calling Servlet will be discarded.
| Is This Answer Correct ? | 10 Yes | 1 No |
Answer / ravikiran
forward will make the flow into a different page,where as
include mechanism will include the page to the current
response and continues the flow.
Note:the forward and include should be called before the
response is committed for example before the call to flush()
or flushBuffer() or the write method in the response stream
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / ravikiran
forward will make the flow into a different page,where as
include mechanism will include the page to the current
response and continues the flow.
Note:the forward and include should be called before the
response is committed for example before the call to flush()
or flushBuffer() or the write method in the response stream
| Is This Answer Correct ? | 3 Yes | 4 No |
Answer / suresh
forward() is used to just forward the request and response
object...
include() is used to pass the values and request and
response object,one servlet to another servlet
| Is This Answer Correct ? | 5 Yes | 19 No |
Is java servlet still used?
Why doesn’t a servlet include main()? How does it work?
What are the exceptions thrown by Servlets?
If some new data has entered the database, explain how can a servlet refresh automatically?
What is the difference between Server and Container?
What is load-on-startup in servlet?
How can we invoke another servlet in a different application?
Why is it that we can't give relative URL's when using ServletContext.getRequestDispatcher() when we can use the same while calling ServletRequest.getRequestDispatcher()?
What is servlet used for?
Explain how to improve Servlet Performance?
What are different methods of session management in servlets?
How do we translate jsp?
Core Java 
