oracle数据库连接的jdbc和jar包

import java.sql.*; public class DBConnection { public Connection getConnection() { Connection conn=null; String CLASSFORNAME = "oracle.jdbc.driver.OracleDriver"; String SERVANDDB = "jdbc:oracle:thin:@localhost:1521:orcl"; //oracle String USER="scott"; String PWD="orcl"; try { Class.forName(CLASSFORNAME); conn=DriverManager.getConnection(SERVANDDB,USER,PWD); }catch(Exception ex) { ex.printStackTrace(); } return conn; } public static void main(String[] args) { ResultSet rs=null; DBConnection db=new DBConnection(); System.out.println(db.getConnection()); } }