Hi Jim, i found the bug at the weekend. It was my fault, cause i closed the resultset some lines before i started the loop. This was the Problem. When i create a new record the resultset is still open but not if try to get the list...
Thanx Stephan At 10:04 01.03.2002 -0600, you wrote: >Stephan, > >I don't see any glaring errors in this code, granted chtml, your statement >and any of the columns returned by your result set are not null. You need >to compile your application with debug (-g) so you can examine the stack >trace produced by the exception. This will at least show you what line is >causing the problem and should lead you to the bug. > >Jim > > > -----Original Message----- > > From: Stephan Mülhaus [mailto:[EMAIL PROTECTED]] > > Sent: Friday, March 01, 2002 8:52 AM > > To: Tomcat Users List > > Subject: RE: Problem with Tomcat or Servlet? > > > > > > okay, here is the part that builds the list: > > > > //My Query to get all records from my table > > r = s.executeQuery("SELECT * FROM fahrzeuge ORDER BY kaufdatum"); > > > > //a loop to parse the content of my records in my htmlpage > > //chtml is my htmlpage as a String > > //helpers.StrTran is a method to replace my placeholder in the htmlpage > > with the String of my table > > while(r.next()){ > > chtml = > > helpers.StrTran(chtml,"-CAR-",r.getString("car")); > > chtml = > > helpers.StrTran(chtml,"-PRODUCER-",r.getString("producer")); > > chtml = > > helpers.StrTran(chtml,"-COLOR-",r.getString("color")); > > chtml = > > helpers.StrTran(chtml,"-CODEPLATE-",r.getString("codeplate")); > > chtml = > > helpers.StrTranList(chtml,"<!---marker--->",cHtmlList+"<!---marker--->"); > > } > > out.println(chtml); > > > > r.close(); > > I hope this helps you to solve my prob > > > > At 08:38 01.03.2002 -0600, you wrote: > > >Sounds like a servlet problem. To determine the cause of your problem we > > >will need to see the servlet source code (at least the part that > > builds the > > >list). > > > > > >Jim > > > > > > > -----Original Message----- > > > > From: Stephan Mülhaus [mailto:[EMAIL PROTECTED]] > > > > Sent: Friday, March 01, 2002 8:28 AM > > > > To: Tomcat Users List > > > > Subject: Problem with Tomcat or Servlet? > > > > > > > > > > > > Hi everybody, > > > > > > > > i have a strange Problem, i have developed a servlet in which i > > > > can create > > > > new records in a mysql database and where i can list these > > records in a > > > > htmlpage. > > > > Now the strange behaviour: > > > > If i try to get the list of records Tomcat throws an > > NullPointerException > > > > although the source is okay but if i create a new record and let > > > > my servlet > > > > list all my records it shows me all my records! > > > > I couldn't find any strange entries in my logfiles, everything is > > > > normal... > > > > Now, perhaps you can help me, is this a problem of my servlet or > > > > a problem > > > > of my tomcat? > > > > > > > > Thanx in Advance > > > > Stephan > > > > > > > > > > > > -- > > > > To unsubscribe: <mailto:[EMAIL PROTECTED]> > > > > For additional commands: <mailto:[EMAIL PROTECTED]> > > > > Troubles with the list: <mailto:[EMAIL PROTECTED]> > > > > > > > > > > > > > > > > >-- > > >To unsubscribe: <mailto:[EMAIL PROTECTED]> > > >For additional commands: <mailto:[EMAIL PROTECTED]> > > >Troubles with the list: <mailto:[EMAIL PROTECTED]> > > > > > > -- > > ------------------------------------------------------------------ > > ---------------------------- > > > > Stephan Mülhaus [EMAIL PROTECTED] > > NWU Gesellschaft fuer Netzwerk und Kommunikation mbH > > Phone: +49-231-986510 - 0 > > FAX: +49-231-986522 - 2 > > ------------------------------------------------------------------ > > ---------------------------- > > > > > > > > -- > > To unsubscribe: <mailto:[EMAIL PROTECTED]> > > For additional commands: <mailto:[EMAIL PROTECTED]> > > Troubles with the list: <mailto:[EMAIL PROTECTED]> > > > > > > >-- >To unsubscribe: <mailto:[EMAIL PROTECTED]> >For additional commands: <mailto:[EMAIL PROTECTED]> >Troubles with the list: <mailto:[EMAIL PROTECTED]> -- ---------------------------------------------------------------------------------------------- Stephan Mülhaus [EMAIL PROTECTED] NWU Gesellschaft fuer Netzwerk und Kommunikation mbH Phone: +49-231-986510 - 0 FAX: +49-231-986522 - 2 ---------------------------------------------------------------------------------------------- -- To unsubscribe: <mailto:[EMAIL PROTECTED]> For additional commands: <mailto:[EMAIL PROTECTED]> Troubles with the list: <mailto:[EMAIL PROTECTED]>
