java连接oracle数据库 -- jdbc连接

a.      倒入oracle的jar包

b.      编写java文件

 

package com.sp;
import java.sql.*;
//使用jdbc连接oracle 
public class MyOra2 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try {
			Class.forName("oracle.jdbc.driver.OracleDriver");
			Connection cc = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:MyOra1","scott","tiger");
			Statement sm = cc.createStatement();
			
			ResultSet rs = sm.executeQuery("select * from emp");
			
			while (rs.next()) {
				//打印用户名
				System.out.println("用户名 ：" + rs.getString(2));
				
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}

 

oracle的jar包下载地址：classes12.jar