sendRedirect() vs forward in servlet

void sendRedirect(java.lang.String location)

This method declared in HttpServletResponse interface. It redirects the client request to some other URL(location) for further processing. It uses a browser redirect. It sends an http response with code 301, and then the browser makes another request to the new page. So we can able to see the redirected address in address bar.

Go through below link for detailed example.

https://self-learning-java-tutorial.blogspot.com/2014/08/redirecting-request.html

forward( ServletRequest request, ServletResponse response )

This method is declared in RequestDispatcher Interface. It forward the request from a servlet to another resource in the server. Another resource can be a servlet/jsp/html file. This method must be called before committing any response to client. Calling of this method after committing the response cause IllegalStateException.

Go through below link for detailed example.

https://self-learning-java-tutorial.blogspot.com/2014/09/forward-servletrequest-request.html

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