How do I redirect a filter?

How do I redirect a filter?

doFilter(request, response); from filter and the normal flow will go ahead. instead use request object of ServletRequest to forward the request.

How do you send data with response sendRedirect?

If you forward the request, you can use setAttribute to put your variable in the request scope, which can easily be retrieved in your JSP. response. sendRedirect(urlEncoded); Hope this helps….

  1. create strTemp variable.
  2. assign “1” to strTemp.
  3. rewrite response. sendRedirect(??? +???)

Why filter is used in servlet?

A filter is an object that is invoked at the preprocessing and postprocessing of a request. It is mainly used to perform filtering tasks such as conversion, logging, compression, encryption and decryption, input validation etc. The servlet filter is pluggable, i.e. its entry is defined in the web.

What is servlet filter and how does it work?

A Servlet filter is an object that can intercept HTTP requests targeted at your web application. When the servlet filter is loaded the first time, its init() method is called, just like with servlets.

How do I redirect a servlet to another resource?

SendRedirect in servlet The sendRedirect() method of HttpServletResponse interface can be used to redirect response to another resource, it may be servlet, jsp or html file. It accepts relative as well as absolute URL. It works at client side because it uses the url bar of the browser to make another request.

How do I forward to another servlet?

To forward request from one servlet to other either you can user RequestDispatcher or SendRedirect. To use RequestDispatcher you must have to get ServletContext reference and then you have to call the getRequestDispatcher() method of ServletContext and using SendRedirect you have to write response. sendRedirect(“URL”).

How do I forward a servlet to a JSP page?

jsp “, here’s the code that will forward from your servlet to that JSP: String nextJSP = “/searchResults. jsp”; RequestDispatcher dispatcher = getServletContext(). getRequestDispatcher(nextJSP); dispatcher.

Why do we use filters in JSP?

To manipulate the server’s response and to intercept the requests from a client, JSP has its proprietary filters that are used with the help of a java class. At the same time, the filters are used to authenticate the credentials of the user and to perform data encryption techniques on the data in question.

What is JSP filter?

Servlet and JSP Filters are Java classes that can be used in Servlet and JSP Programming for the following purposes − To intercept requests from a client before they access a resource at back end. To manipulate responses from server before they are sent back to the client.

What is sendRedirect method?

sendRedirect() method redirects the response to another resource, inside or outside the server. It makes the client/browser to create a new request to get to the resource. It sends a temporary redirect response to the client using the specified redirect location URL.