jdbc连接oracle代码

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class OraSqlConnection {

    private String url = "jdbc:oracle:thin:@localhost:1521:主机字符串";

    private String user = "username";

    private String password = "pwd";

    private Connection conn;

    public OraSqlConnection() {
        try {

            Class.forName("oracle.jdbc.driver.OracleDriver");
            conn = DriverManager.getConnection(url, user, password);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        System.out.println("get connection success");
    }
   
    public Connection getConnection()
    {
        new SqlConnectionUtil();
        return this.conn;
    }
   
   

    public static void main(String[] args) {
        new SqlConnectionUtil();
       
    }

}
其中需要的oracle驱动是一个叫classes12.jar的包