从 newInstance 调用中删除所有不必要的导入和驱动程序类，如下所示:

Remove all unnecessary imports and driver class from newInstance call as follows:

import groovy.sql.Sql

sql = Sql.newInstance("jdbc:oracle:thin:@localhost:1521:databasename", "username", "password")

上面的内容就足够了，对我来说很好用，但是我使用的是ojdbc6-11.2.jar

The above is enough and works just fine for me, however I'm using ojdbc6-11.2.jar

此外，取决于您使用的是 SID 还是服务名称，可能必须将JDBC URL的最后一个分号更改为斜杠.

Beside depends on if you are using SID or service name the last semicolon at JDBC URL might have to be changed for slash.