java.lang.ClassNotFoundException Netbeans java derby

Question

I use Netbeans, doing a java app. I created a class ConnectDB for db connetion using Java DB in netbeans. i started the server and ten conneted to db. when i run the file it pro

Answer 1

get this library
http://repo.maven.apache.org/maven2/org/apache/derby/derbyclient/10.9.1.0/derbyclient-10.9.1.0.jar

and copy it to Derby's libs folder.

Answer 2

If you use Tomcat download derbyclient.jar from here . And copy the jar file to Tomcat's lib folder.