一个jdbc连接oracle8的例子（本机的页可以)!!!!

        try    {    
            //加载一个Oracle驱动
            DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
            //使用OCI8连接到数据库
            conn=DriverManager.getConnection("jdbc:oracle:oci8:@DatabaseName"+,"user","password");
        }catch(SQLException e)    {    //捕捉SQL违例
            System.out.println("Ora8iConnect在连接oracle8数据库时捕获");
            while (e!=null)
            {    System.out.println("SQLState:"+e.getSQLState());
                System.out.println("Message :"+e.getMessage());
                System.out.println("Vendor  :"+e.getErrorCode());
                e=e.getNextException();
                System.out.println(" ");
            }
            conn=null;
        }

        try    {    
            Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
            //orcl为你的数据库的SID
            String url="jdbc:oracle:thin:@localhost:1521:orcl";
            Connection conn= DriverManager.getConnection(url,"user","password");
        }catch(SQLException e)    {    //捕捉SQL违例
            System.out.println("Ora8iConnect在连接oracle8数据库时捕获");
            while (e!=null)
            {    System.out.println("SQLState:"+e.getSQLState());
                System.out.println("Message :"+e.getMessage());
                System.out.println("Vendor  :"+e.getErrorCode());
                e=e.getNextException();
                System.out.println(" ");
            }
            conn=null;
        } 

原文转自：http://www.ltesting.net