Re: Need some inputs

[Ben Engber]

>Hi, Ben:
>Thanks for your inputs.
>1.� How can I redirect post data to server2?� 
>2.� How can I store the entire original HttpServletRequest (on server
1) into a distributed HttpSession?� Aren't they still on server1?� Or,
Are you suggesting me to use RMI?
>3.� What do you mean by make a container class for all data?
>Sorry, I don't have much experience on Java Servlet.� Some sample
codes will help me a lot.
>Thanks,
>������� Jackie


1.  Try something like this in service():

  StringBuffer buff = new StringBuffer("");
  String names[] = req.getParameterNames();
  for (int i=0; i<names.length; i++) {
    String values[] =
req.getParameterValues(name[i]);
    for (int j=0; j<values.length; j++) {
       if (buff.length() > 0) {
       
buff.append("&");
      }
     
buff.append(URLEncoder.encode(name[i]));
      buff.append("=");
     
buff.append(URLEncoder.encode(value[j]));
    }
  }
  StringBuffer redirecturl = new
StringBuffer("http://server2/servlet");
  redirecturl.append("?");
  redirecturl.append(buff);
  res.sendRedirect(redirecturl.toString());

     This will take all your form
parameters and convert them into an HTTP GET request  (i.e.
http://xxx.yyy.zzz/nnn?name1=value1&name2=value2...).

2.  It depends on your servlet implementation -- some support
distributed sessions.  If not, you're absolutely right, you'll have
to use something like RMI to transfer the data to the other 
machine.

3.  #1 should work in most cases, but there may be times when you
need to access more than just form data (perhaps cookies, or HTTP
headers, or something else).  In this case, #1 won't provide all the
information you need.  One solution is to put the information into
the URL you construct in #1 and pretend they're form variables. 
Another is to put them in any kind of Serializable object and store them
in the session described in #2.

Hope that's clearer,
Ben



--
Ben Engber
Software Engineer
The New York Times
[EMAIL PROTECTED]




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