As requested:
java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.initialize(JdbcOdbcDriver.java:435)
at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:153)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:171)
at survey.SurveyRepository.(SurveyRepository.java:57)
at survey.SurveyRepository.getInstance(SurveyRepository.java:48)
at survey.AddCommand.execute(AddCommand.java:22)
at survey.SurveyServlet.service(SurveyServlet.java:33)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown
Source)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown
Source)
at org.apache.catalina.core.StandardWrapperValve.invoke(Unknown
Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContextValve.invoke(Unknown
Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContext.invoke(Unknown Source)
at org.apache.catalina.core.StandardHostValve.invoke(Unknown Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(Unknown Source)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(Unknown
Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(Unknown Source)
at org.apache.catalina.valves.ErrorReportValve.invoke(Unknown
Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(Unknown Source)
at org.apache.catalina.valves.AccessLogValve.invoke(Unknown Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardEngineValve.invoke(Unknown
Source)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at
org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:458)
at
org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:551)
at java.lang.Thread.run(Thread.java:536)
> I haven't worked with unixodbc at all, but a little with Java...
> I suspect some variable may be null or not what you're
> expecting at the time the
> error occurs...
> try working through your code and find where this may be
> occurring and why...
It's not my code. I don't even know java
mike
>
> can you post your exact error message and stack trace?
>
> Kevin
>
> "Martinez, Michael - CSREES/ISTM" wrote:
>
> > To add to your notes, I found some online documentation yesterday:
> >
> > http://www.yolinux.com/TUTORIALS/LinuxTutorialTomcat.html
> >
> > and the following recently-released book available at
> Amazon and Barnes and
> > Noble:
> >
> > "Professional Tomcat Apache" by Chanoch Wiggers et al.,
> Wrox Press, Sept
> > 2002
> >
> > Now, as far as my installation: I've got tomcat working,
> and java working. I
> > looked at downloaded unixodbc (from www.unixodbc.org) but
> this package
> > requires X include files, which my system does not have
> because I run a
> > non-gui command line system. so then I hunted for jdbc on
> sun, the sun
> > documentation is rather cryptic, I downloaded jdbc-stdext
> package but I'm
> > not sure if its the right one. I put all the jar files in
> the classpath.
> >
> > The jsp file executes as it should until it gets to where
> it has to write to
> > the database (a mdb file) then it chokes and says "Unknown source."
> >
> > Of course, there is no mdb file on the system, I haven't
> gone through the
> > the jsp code to see if it's expecting one to already exist,
> or whether it
> > should be able to "create" one if needed. Of course, I'm a
> system admin, I'm
> > not a java developer so I really shouldn't have to learn
> java just to get
> > this to work.
> >
> > So my question at this point woudl be: what is the cause of
> the "Unknown
> > source" error?
> >
> > Michael Martinez
> >
> > > -----Original Message-----
> > > From: Kevin Weslowski [mailto:[EMAIL PROTECTED]]
> > > Sent: Monday, November 25, 2002 7:35 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: How to install JDBC ?
> > >
> > >
> > > I don't believe there's much to installing JDBC...
> > >
> > > if you're already running tomcat fine, you should just be
> > > able to put the .jar file provided by the db vendor into the
> > > classpath recognized by tomcat and it'll find the classes it
> > > needs to connect to the db.
> > >
> > > I recommend getting jdbc to work first with a simple java (no
> > > servlet/jsp) program. Once that's done, it's only a matter
> > > of making sure tomcat can find the same .jar class(es).
> > >
> > > here is an example I just found...
> > >
> > > http://www.fluffycat.com/java/JavaNotes-JDBC.html
> > >
> > > of how to use JDBC...most db vendors should give some
> > > installation tips when you download their jdbc .jar file...
> > >
> > > Kevin
> > >
> > > "Martinez, Michael - CSREES/ISTM" wrote:
> > >
> > > > Can someone point me to some documentation that describes
> > > how to install
> > > > JDBC and how to interface it with Apache/Tomcat/?
> > > >
> > > > Michael Martinez
> > > >
> > > > _______________________________________________
> > > > Seawolf-list mailing list
> > > > [EMAIL PROTECTED]
> > > > https://listman.redhat.com/mailman/listinfo/seawolf-list
> > >
> > >
> > >
> > > _______________________________________________
> > > Seawolf-list mailing list
> > > [EMAIL PROTECTED]
> > > https://listman.redhat.com/mailman/listinfo/seawolf-list
> > >
> >
> > _______________________________________________
> > Seawolf-list mailing list
> > [EMAIL PROTECTED]
> > https://listman.redhat.com/mailman/listinfo/seawolf-list
>
>
>
> _______________________________________________
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