including servlets in a customed tag

[David Treves <dw...@macam98.ac.il>]

Hi,

    I am trying to include a servlet while processing a tag I wrote, I don't need specifically the request and response of the pageContext of that tag. I tried to include the servlet with new and with the existing request/response, both way the servlet simply was not included. it looks like it simply skips the including line.

the tag code is:

try{
  ServletRequest request = pageContext.getRequest();
  request.setAttribute("recipientId",userId); // add an attribute to be passed to the included file
  
  ServletResponse response = pageContext.getResponse();
  System.out.println("in tag");
  javax.servlet.RequestDispatcher rd = pageContext.getRequest().getRequestDispatcher("/courses/servlet/cacheUsers");
  rd.include(request, response);
  System.out.println("after including (in tag)");
}
catch(javax.servlet.ServletException e){
  System.out.println("ServletException: " + e.getMessage());
}

As you can see there are System outs and both of them printed. (the code was taken from the doEndTag())

Any idea whats wrong here?


Thanks!
David.

Re: including servlets in a customed tag

[Pierre Delisle <pi...@sun.com>]

> David Treves wrote:
> 
> Hi,
> 
>     I am trying to include a servlet while processing a tag I wrote, I don't
> need specifically the request and response of the pageContext of that tag. I
> tried to include the servlet with new and with the existing request/response,
> both way the servlet simply was not included. it looks like it simply skips
> the including line.
> 
> the tag code is:
> 
> try{
>   ServletRequest request = pageContext.getRequest();
>   request.setAttribute("recipientId",userId); // add an attribute to be passed
> to the included file
> 
>   ServletResponse response = pageContext.getResponse();
>   System.out.println("in tag");
>   javax.servlet.RequestDispatcher rd =
> pageContext.getRequest().getRequestDispatcher("/courses/servlet/cacheUsers");
>   rd.include(request, response);
>   System.out.println("after including (in tag)");
> }
> catch(javax.servlet.ServletException e){
>   System.out.println("ServletException: " + e.getMessage());
> }
> 
> As you can see there are System outs and both of them printed. (the code was
> taken from the doEndTag())
> 
> Any idea whats wrong here?


Try 

    pageContext.include("/courses/servlet/cacheUsers");

instead of 

    rd.include(...)

  -- Pierre