The reason given: oracle of ojdbc.jar a fee, maven central repository is no need to download to the local, and then packaged into maven repository
1. Download ojdbc6-11.2.0.1.0.jar package
http://central.maven.org/maven2/com/jslsolucoes/ojdbc6/11.2.0.1.0/ojdbc6-11.2.0.1.0.jar
2. ojdbc6-11.2.0.1.0.jar package configuration to a local maven repository ( directory should be the directory where the downloaded jar package )
Open cmd input
mvn install:install-file -Dfile=D:\\ojdbc6-11.2.0.1.0.jar -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=11.2.0 -Dpackaging=jar