SENDING DATA IN HTTP HEADER

Question

I want to send some data in HTTP HEADER and then tranfer the request to JSP using REQUEST DISPATCHER.
//SOMETHING LIKE THIS //
String Newheader="Some Value";
String NewHeaderValue="Some New Value";
response.addHeader(NewHeader,NewHeaderValue);
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/auth/Some.jsp");
and printing header in JSP , but unable to get it . Can somebody help me out.

Answer 1

To what I understand is setting a header in response is not going to give you in JSP page. because in JSP what you are doing is request.getHeader.
Response header set in a filter is for the browser. if you really want to set a header in filter and then get it back in JSP then you need to use a RequestWrapper class
Some thing similar to this, if you notice that the getHeader method is overriden
class RequestWrapper extends HttpServletRequestWrapper {
     String remoteUserHeaderName;
     String userName;
     public RequestWrapper(HttpServletRequest request){
          super(request);          
     public RequestWrapper(HttpServletRequest request,String remoteUserHeaderName,String userName){
          super(request);          
          this.remoteUserHeaderName = remoteUserHeaderName;
          this.userName = userName;
     @Override
     public String getHeader(String header) {
          // TODO Auto-generated method stub
          if (remoteUserHeaderName != null && userName != null && header.equals(remoteUserHeaderName)) {
               return userName;
          else {
               return super.getHeader(header);
}