what is request dispatcher and how does it work?
Answers were Sorted based on User's Feedback
Answer / mahesh bolla
Request dispatcher is used to transfer the same rquest to
another page/servlet without user interaction.
Exampe:
Suppose we have 2 servlets.
Write the below code in first Servlet
----
----
RequestDispatchet rd = request.getRequestDispatcher
("/secondServlet");
rd.forward(request, response);
//or rd.include(request, response);
---
----
Similar thing can be done in JSPs also
Write the below code in one.jsp
<js:forward page="two.jsp"/>
or
<jsp:include page="two.jsp");
If we use "forwad" then request will transfered to the
second page but not returned back to first page. We can see
only the second page's output.
If we use "include" then the sencond page itself will be
included in the first page. Then the output is the
combination of both the pages.
| Is This Answer Correct ? | 34 Yes | 2 No |
What is the difference between jfc & wfc?
Can java arraylist hold different types?
Differentiate between a class and an object.
What does the “static” keyword mean?
What is a databasemetadata?
How does access modifiers work?
how to handle http request in struts
Explain the scope of a variable.
Can we use a default constructor of a class even if an explicit constructor is defined?
What is string syntax?
What a static class can contains?
Enlist few advantages of inheritance?