JDBC Oracle Connection

I've searched, and tried many things, but cannot get an Oracle connection to work on our server...it works on my developement PC, but I move my .jar to the server and I get:

Exception in thread "main" java.lang.NoClassDefFoundError: oracle/jdbc/Oracle Driver

I started out with just the JRE installed, but have since installed the JDK in hopes that would solve it. I have copied both "classes111.jar" and "ojdbc.jar" to C:\Program Files\Java\jdk1.6.0_17\lib.

Most fixes for this error are "check your environment variables"...I've checked them and tried many things but no go...here's that they look like:

PATH=.; C:\Program Files\Java\jdk1.6.0_17\lib;C:\Program Files\Java\jdk1.6.0_17\lib\classes111.jar; C:\Program Files\Java\jre6\lib;D:\oracle\ora92\;D:\oracle\ora 92\bin;C:\Program Files\Oracle\jre\1.1.8\bin;C:\WINDOWS\system32;C:\ WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Intel\DMIX


CLASSPATH=C:\Program Files\Java\jdk1.6.0_17\lib; C:\Program Files\Java\jdk1.6.0_17\lib\classes111.jar

Is there anyone that can help me troubleshoot this???!

I probably should have mentioned a few more things, i am using Eclipse on my dev PC (wiht WinXP), and the server is Win2K3 Server, with the Oracle 9i client installed.

Don't put that jar file in the JDK's folders or on your system's path. It only needs to be on your program's classpath.

I put my jar in

C:\alfa.jar

So I need to have the classes111.jar in that same directory?...and then change CLASSPATH to that location?

Then run

c:\java -jar alfa.jar

Tried that but still get the same error...

You then need to provide

-cp classes111.jar

Tried that...still same error.
:(

I do appreciate you help

We might be making progress though, because this does not work:

c:\java oracle.jdbc.driver.OracleDriver

but this does:

c:\java -cp classes111.jar oracle.jdbc.driver.OracleDriver

Does the JDK have to be installed to use JDBC?

Does the Oracle Client?

Quote:

---

Originally Posted by Bean

We might be making progress though, because this does not work:

c:\java oracle.jdbc.driver.OracleDriver

but this does:

c:\java -cp classes111.jar oracle.jdbc.driver.OracleDriver

---

Please read the manual for the java command. What class file are you trying to run? That's the one you provide to java. You are currently running the oracle driver class which is surely not what you intend to do. Run your class file but provide the classes111.jar as a classpath argument i.e

c:\java -cp classes111.jar YourClassThatUsesTheOracleDriver

Yes, I understand that...but I had read somewhere that if your Oracle connection is failing that you can troubleshoot by simply trying the command:

java oracle.jdbc.driver.OracleDriver

and see what you get. If you get a:

"main" not found

then the Oracle Driver can be found, and the problem is elsewhere...if you get:

Exception in thread "main" java.lang.NoClassDefFoundError: oracle/jdbc/Oracle Driver

then theres something wrong with the environment. I was just trying to troubleshoot. The class file I am trying to run is named ALFA.jar, it currently resides in C:\ on the server. So I try:

c:\java -cp classes111.jar ALFA.jar

and I get the Error:

Exception in thread "main" java.lang.NoClassDefFoundError: oracle/jdbc/OracleDriver

???

thanks for the help

What happened to the -jar option?

just check it in command line javap oracle.jdbc.OracleDriver to make sure jar file is in path

Quote:

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Originally Posted by r035198x

What happened to the -jar option?

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Yes, sorry I am using that...jsut typed it wrong into the forum...I am issueing this command:

c:\java -cp classes111.jar -jar ALFA.jar

and I get the Error:

Exception in thread "main" java.lang.NoClassDefFoundError: oracle/jdbc/OracleDriver

Quote:

---

Originally Posted by RamyaSivakanth

just check it in command line javap oracle.jdbc.OracleDriver to make sure jar file is in path

---

If I type:

c:\javap oracle.jdbc.OracleDriver

I get:

'javap' is not recognized as an internal or external command...

???