What is the difference between redirect and request dispatch?
The RequestDispatcher interface allows you to do a server side forward/include whereas sendRedirect() does a client side redirect.
What is the difference between Httpservletresponse redirect and RequestDispatcher forward?
A RequestDispatcher forward() is used to forward the same request to another resource whereas ServletResponse sendRedirect() is a two step process. In sendRedirect(), web application returns the response to client with status code 302 (redirect) with URL to send the request.
What is difference between forward and include in RequestDispatcher?
The difference between the two methods is that the forward method will close the output stream after it has been invoked, whereas the include method leaves the output stream open. The include method takes the content from another resource and includes it in the servlet.
What is the difference between redirect and forward in Outlook?
If you use redirect, your email will be redirected to another email address specified by a user created inbox rule. If you use forward, your email will be forwarded to another email address, but you will not be able to reply to the original sender.
What is redirect in Gmail?
You can choose to forward all of your new messages to another email address, or only forward certain types of messages.
What is RequestDispatcher and how does it work?
Interface RequestDispatcher. Defines an object that receives requests from the client and sends them to any resource (such as a servlet, HTML file, or JSP file) on the server. This interface is intended to wrap servlets, but a servlet container can create RequestDispatcher objects to wrap any type of resource.
What is including and forwarding?
You should use include() method to load a resource which could be a JSP page or another Servlet, and use forward() to redirect the request to another resource for further processing, again you can forward the request to another Servlet or JSP page. Related Servlet and JSP interview questions for Java programmers.
Why is the requestdispatcher not working during redirects?
This does not happen during a redirect because you’re basically forcing the client to create a new HTTP request on other.jsp, hereby throwing away the original request on some.jsp including all of its attribtues. The RequestDispatcher is extremely useful in the MVC paradigm and/or when you want to hide JSP’s from direct access.
What is the redirect command in a web application?
In web based systems, the redirect or send redirect command or method is used when there is a need to redirect the request of the client to a different URL that is located on a different server.
What is the difference between the forward and redirect methods?
The redirect method is a web application that redirects the request of the client from one window of a server to the window of another server. In the forward method, the client is completely unaware of the underlying process and in the redirect method, the client is aware of the process.
How does request dispatch work?
When you run the example above, you can see below web pages. The URL in the below picture is just the RequestDispatch servlet URL. So the RequestDispatcher will forward or include the target web resource totally at the server-side. The Client-side does not know which resource has been forwarded or included.