请问如何使用JDBC和ORACLE连接？？

Question

Connection connection;
Statement statement;

//connect to oracle
String dirveName="oracle.jdbc.driver.OracleDriver";
String dataSource="jdbc:oracle:thin:@serverName:1521:dataBaseName";String username="username";
String password="password";

Class.forName(dirveName);
connection=DriverManager.getConnection(dataSource,username,password);
statement= connection.createStatement();statement.close();
connection.close();