lab3.java

还是关于jdbc的

package com.tarena.jdbc.lab;
import java.sql.*;

public class Lab3
{
	public static void main(String[] args){
	   Connection con = null;
	   try{
	     //1、注册驱动
		 /*String driverName = 
			 "oracle.jdbc.driver.OracleDriver";
         Class.forName(driverName);*/
		 /*Driver d = 
		 new oracle.jdbc.driver.OracleDriver();
         DriverManager.registerDriver(d);*/
		 
		 //2、建立数据库连接
		 String url = 
		   "jdbc:oracle:thin:@192.168.0.20"+
		   ":1521:tarena";
		 String username = "openlab";
		 String pwd = "open123";
		 con = DriverManager.getConnection(
			 url,username,pwd);
		 System.out.println("con->"+con);

	   }catch(Exception e){
	      e.printStackTrace();
	   }finally{
		  try{
	        con.close();
	      }catch(Exception e1){
		    e1.printStackTrace();
		  }
	   }
	
	}
}