Connecting to MySQL with JRuby and JDBC.

connect.rb

require 'java'

require 'rubygems'
require 'dbi'
require 'dbd/Jdbc'
require 'jdbc/mysql'

Jdbc::MySQL.load_driver
DBI.connect(
  'DBI:Jdbc:mysql://localhost/test',
  'root', 'root',
  'driver' => 'com.mysql.jdbc.Driver'
) do |dbh|
  puts "Connected"

end

This code works good! 😄