java连接oracle11g具体办法

没有你可以单独去下载一个jar包，连接也很简单
Class.forName("oracle.jdbc.driver.OracleDriver");
String url = "jdbc:oracle:thin:@127.0.0.1:1521:databasename";
String user = "username";
String pwd = "password";
Connection conn = DriverManager.getConnection(url, user, pwd);