Setting up openfire database problem

I'm using a MAMP mysql database. I'm lost on what to put in these fields: JDBC Driver Class and Database URL. Im using localhost so I entered com.mysql.jdbc.Driver in the first field and jdbc:mysql://localhost:8889/openfire in the second field. Tried jdbc:mysql://127.0.0.1:3306/openfire And all combinations of the two with the but still can't connect. Any ideas?