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20.3.2.1 Installing Connector/J from a Binary Distribution »
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20.3.2. Connector/J Installation

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20.3.2.1. Installing Connector/J from a Binary Distribution
20.3.2.2. Installing the Driver and Configuring the CLASSPATH
20.3.2.3. Upgrading from an Older Version
20.3.2.4. Installing from the Development Source Tree

You can install the Connector/J package using either the binary or source distribution. The binary distribution provides the easiest method for installation; the source distribution enables you to customize your installation further. With either solution, you must manually add the Connector/J location to your Java CLASSPATH.

If you are upgrading from a previous version, read the upgrade information before continuing. See Section 20.3.2.3, “Upgrading from an Older Version”.

Connector/J is also available as part of the Maven project. More information, and the Connector/J JAR files can be found at the Maven repository.


User Comments

Posted by Anthony Rossano on August 24 2006 6:51pm[Delete] [Edit]

On Mac OSX 10.4, simply putting the connector/j in the /System/Library/Java/Extensions folder was not enough for me.

This command:
"Class.forName("com.mysql.jdbc.Driver").newInstance();"
would throw this error:
"Exception in thread "main" java.lang.NoClassDefFoundError: test/class"

After much pain, I set the classpath environment variable manually in the .profile file as follows:

PATH=${PATH}:/usr/local/mysql/bin
CLASSPATH=$CLASSPATH:/System/Library/Java/Extensions/
CLASSPATH=$CLASSPATH:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/:/Library/Java/Extensions/
export CLASSPATH

And all was well.


Posted by Ian Stanton on October 12 2006 8:40am[Delete] [Edit]

I had exactly the same problem and was pulling my hair out.
I am running OS X 10.4 on an Intel Mac.
My problem differed slightly in that copying the mysql-connector-java-5.0.3 folder (which is the download file) to the /system/library/java/extensions folder wasn't enough. I had to copy the mysql-connector-java-5.0.3-bin.jar out of the mysql-connector-java-5.0.3 folder and put it in extensions.
For some reason I don't understand it wasn't visible while in its enclosing folder.
I have spent hours trying to get this working but at least it's over now.

Posted by zhen wang on October 15 2007 7:31pm[Delete] [Edit]

I don't think JVM search for all folders and files in the jar directory. It only look through the files in Extension folder.

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