Re: Applets: DriverManager.registerDriver NoClassDefFoundError

From: Johann Strauss <strauss_at_earthnet.com>
Date: Tue, 20 May 2003 18:01:08 GMT
Message-ID: <E3uya.7198$rO.646632@newsread1.prod.itd.earthlink.net>

After much (MUCH) hair pulling, I have my Applet accessing my database (and, more troubles to come, I'm sure :-) . Without Rauf Sarwar's help, I'd probably be bald!

Here's what the final solution is (first example line is generic; the second, is my setting):

Make sure that the Classpath includes an entry for the Oracle drivers: .;[driver].zip .;C:\oracle\ora92\jdbc\lib\classes12.zip
The subdirectory containing the java class file (executable) should also contain the Oracle driver.
HTML file needs to contain: archive=[driver].zip <APPLET CODE="[name].class" archive="[driver].zip "> <APPLET CODE="JoltData.class" archive="classes12.zip ">
Java.policy needs a line for SocketPermissions: permission java.net.SocketPermission "[hostname]", "connect,resolve"; permission java.net.SocketPermission "Waltz", "connect,resolve";
Java.policy needs a line for PropertyPermission for Oracle: permission java.util.PropertyPermission "oracle.jserver.version", "read, write";

Oh, and, in the "catch" put the following line...it helped immensely!!

System.out.println(e.toString());

Again, lotsa thanks goes to Rauf Sarwar for this solution!!!

Donna Received on Tue May 20 2003 - 13:01:08 CDT