Forwarding with utf-8 encoding

Question

Hi all,
I've been having a problem with UTF8 encoding with jdk1.3.
Here's three simple JSPs that illustrate it:
MattTest3.jsp
<%@ page contentType="text/html; charset=utf-8" %>
<form action=MattTest5.jsp>
<input type=text name=xxx>
<input type=submit>
</form>
<br>
<form action=MattTest4.jsp>
<input type=text name=xxx>
<input type=submit>
</form>
MattTest4.jsp
<%@ page contentType="text/html; charset=utf-8" %>
<jsp:forward page='MattTest5.jsp'/>
MattTest5.jsp
<%@ page contentType="text/html; charset=utf-8" %>
<%= request.getParameter("xxx") %>
The first MattTest3 renders two input boxes with submit buttons. The first input submits to MattTest5, which just prints the value from the request parameter. THe second submits to MattTest4, which does nothing other than forward to MattTest5.
If I enter "special characters", such as accented letters (e.g. hold AltGr and press a or e), then the first submission displays them as I entered them, and the second (with the forward) displays two question marks for each character entered.
I'm using iPlanet 4.1sp6 on Solaris 2.7, and only get the bahaviour with jdk1.3. Using jdk1.2, the request parameter gets truncated at the first "special character", which still isn't what I'd expect.
Does anybody have any ideas? Can anybody replicate the problem? On what platforms? Can anybody NOT replicate the problem? On what platforms?

Answer 1

try with java.net.URLEncoder.encode(parameter);
the following code may help:
import java.net.*;
public class CodificadorURL{
     public static void main(String []a){
               System.out.println(URLEncoder.encode("="));
               System.out.println(URLEncoder.encode("a"));
               System.out.println(URLEncoder.encode("�"));
               System.out.println(URLEncoder.encode("Amiga"));
               System.out.println(URLEncoder.encode("Sesi�n"));
}