Enthuware

Code: Select all

public class EncryptFilter implements Filter{
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain fc) throws
       IOException, ServletException{
      
        EncryptResponseWrapper rwrapper = new EncryptResponseWrapper(response);
         //Suppose this is passed to the servlet to get the data that the browser queries for.
        fc.doFilter(request, response);

        //... do encryption for the response here
        //assume there is a variable called encryptedData;
        rwrapper.getWriter().println(encryptedData);
    }
}

Code: Select all

public  class EncryptResponseWrapper extends HttpServletResponseWrapper{
         //override some HttpServletResponseWrapper methods
              ...
}