Hi Angelo,
This is the important line:
Cannot create a session after the response has been committed
Which is telling you that the response is committed / finalized and you are
trying to modify parameters on it. This usually happens for example when you
call a response.sendRedirect somewhere in your code, but have omitted the
terminator 'return true', which should follow it.
Peter
- Original Message -
From: Angelo Chen angelochen...@yahoo.com.hk
To: users@tapestry.apache.org
Sent: Monday, 23 February, 2009 15:06:30 GMT +02:00 Athens, Beirut, Bucharest,
Istanbul
Subject: t5: Filter and Session conflict?
Hi,
I use the code at end of this message to strip the Jsessionid, it works very
well, however it started to have error when I call this in my T5 app:
Session session = request.getSession(false);
if (session != null) {
session.invalidate();
}
cookies.removeCookieValue(logKey);
can this problem be fixed? Thanks,
Angelo
[ERROR] [default] Servlet.service() for servlet default threw exception
java.lang.IllegalStateException: Cannot create a session after the response
has been committed
at org.apache.catalina.connector.Request.doGetSession(Request.java:2221)
at org.apache.catalina.connector.Request.getSession(Request.java:2031)
at
org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:832)
at
org.apache.tapestry5.internal.services.RequestImpl.getSession(RequestImpl.java:99)
...
at org.myapp.Filter.doFilter(Filter.java:37)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
...
at java.lang.Thread.run(Thread.java:613)
//
http://www.nabble.com/T5%3A-what-part-of-tapestry-adds-Jsessionid-td18385573.html#a18388334
Code from Filip S. Adamsen-2
public class Filter implements javax.servlet.Filter {
public void doFilter(ServletRequest request, ServletResponse
response, FilterChain chain)
throws IOException, ServletException {
if (!(request instanceof HttpServletRequest)) {
chain.doFilter(request, response);
return;
}
HttpServletRequest httpRequest = (HttpServletRequest) request;
HttpServletResponse httpResponse = (HttpServletResponse)
response;
if (httpRequest.isRequestedSessionIdFromURL()) {
HttpSession session = httpRequest.getSession();
if (session != null) session.invalidate();
}
HttpServletResponseWrapper wrappedResponse = new
StripUrlSessionIdHttpServletResponseWrapper(httpResponse);
chain.doFilter(request, wrappedResponse);
}
public void init(FilterConfig config) throws ServletException {
}
public void destroy() {
}
private static class StripUrlSessionIdHttpServletResponseWrapper
extends HttpServletResponseWrapper {
public
StripUrlSessionIdHttpServletResponseWrapper(HttpServletResponse
httpResponse) {
super(httpResponse);
}
public String encodeRedirectUrl(String url) {
return url;
}
public String encodeRedirectURL(String url) {
return url;
}
public String encodeUrl(String url) {
return url;
}
public String encodeURL(String url) {
return url;
}
}
}
--
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