my JRDC2 server in localhost running sucessfully.
and then,
I tried it to connect my B4a app in Heroku's ClearDB database using JRDC2 middleware server.
Like this,
DriverClass=com.mysql.jdbc.Driver
JdbcUrl=jdbc:mysql://us-cdbr-east-06.cleardb.net/heroku_0c692a6fc1e1eb7?reconnect=true...