Re: Newbie - problem accessing DB2 with Java program.

From:
=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>
Newsgroups:
comp.databases.ibm-db2,comp.lang.java.databases,comp.lang.java.programmer
Date:
Sun, 16 Mar 2008 22:05:51 -0400
Message-ID:
<47ddd1ca$0$90262$14726298@news.sunsite.dk>
zalek wrote:

On Mar 16, 7:21 pm, Arne VajhHj <a...@vajhoej.dk> wrote:

zalek wrote:

On Mar 16, 6:49 pm, Arne VajhHj <a...@vajhoej.dk> wrote:

zalek wrote:

In my installation we have DB2 on a mainframe computer. I am able to
access DB2 from my PC (WinXP) using some utilities. I wrote a Java
program to access DB2, but I am getting errors.
After command:
Class.forName("COM.ibm.db2.jdbc.app.DB2Driver");
I am getting exception:
Exception java.lang.ClassNotFoundException:
COM.ibm.db2.jdbc.app.DB2Driver
I copied db2java.zip and db2jcc.jar files to a default directory of
JBuilder, even to the same directory where I have my program, but it
did not help.
What I am doing wrong?

You need to put the JDBC driver jar file in classpath. Just putting
then in those directories does not put them in classpath.

I tried - it did not help.
I am using JBuilder to write my program, so I moved db2java.zip and
db2jcc.jar to
C:\JBuilder2005\jdk1.4\bin and
C:\JBuilder2005\jdk1.4\lib
On top of it I found a directory in a classpath variable and move this
files to this directory - nothing helped. Still getting the same
error.

I repeat:

Just putting a jar file in a directory does not put it in classpath.

(with a few exceptions that does not apply here)

You need explicitly to tell JBuilder to use this jar file.


I added files to JBuilder classpath, so now the import command is
working and it shows DB2Driver, here is a picture from my program:
http://www.geocities.com/bloomzalek/pictures/java.JPG
but still I am getting:
Exception java.lang.ClassNotFoundException:
COM.ibm.db2.jdbc.net.DB2Driver


Exactly where did you add it to classpath ?

You seems to be using JBuilder classis (non-Eclipse based).

You add it in:
   project
   project properties
   required libraries
   add
   ...

Arne

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