How to redirect in a servlet filter?

Question

I\'m trying to find a method to redirect my request from a filter to the login page but I don\'t know how to redirect from servlet. I\'ve searched but what I find is s

Answer 1

In Filter the response is of ServletResponse rather than HttpServletResponse. Hence do the cast to HttpServletResponse.

HttpServletResponse httpResponse = (HttpServletResponse) response;
httpResponse.sendRedirect("/login.jsp");

If using a context path:

httpResponse.sendRedirect(req.getContextPath() + "/login.jsp");

Also don't forget to call return; at the end.