How to connect to Oracle using JRuby & JDBC

Question

First approach: bare metal

require \'java\'
require \'rubygems\'
require \"c:/ruby/jruby-1.2.0/lib/ojdbc14.jar\"  # should be redundant, but tried it anyway
         


        

Answer 1

require 'java'

# This require doesn't load the jdbc driver jar into the system class path
require "c:/ruby/jruby-1.2.0/lib/ojdbc14.jar" 

# 2 ways you can load the class (There are probably more)

# 1 ruby syntax for java class name
Java::OracleJdbcDriver::OracleDriver

# 2 Use the thread context class loader
java.lang.Class.forName("oracle.jdbc.driver.OracleDriver", true, java.lang.Thread.currentThread.getContextClassLoader)


url = "jdbc:oracle:thin:@myhost:1521:mydb"
puts "About to connect..."
con = java.sql.DriverManager.getConnection(url, "myuser", "mypassword");
if con
    puts " connection good"
else
    puts " connection failed"
end