java连接oracle数据库实例及所需jar文件

package com.kelan.xsItem.action; import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import java.sql.Statement; public class oracle { private String url="jdbc:oracle:thin:@localhost:1521:zafu"; //服务器地址：210.35.205.109，端口号：1521，数据库实例名字：wjhdb。 private String username="scott"; private String pw="zafu"; private Connection conn=null; //用户名字和密码是自己建立的。 /*方法一*/ public Connection Conn1() { try { Class.forName("oracle.jdbc.driver.OracleDriver"); try { conn=DriverManager.getConnection(url,username,pw); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } return conn; } public static void main(String s[]) { oracle obj=new oracle(); Connection con=obj.Conn1(); if(con==null) System.out.print("连接失败"); else System.out.print("连接成功"); } }