Java连接Oracle10g

1.导入驱动包：

   a.找到oracle安装目录下的jdbc/lib中的文件classes12.jar；

   b.右击你创建的JAVA工程，找到Build path，选择Add External Archives,找到你要导入的包classes12.jar，点击打开就可以引入，引入后在工程下面的ReferencedeLibraries下便能显示这个包。

2.代码测试：

 import java.sql.*;

 public class oracle

 { 

     String driver = "oracle.jdbc.OracleDriver";

     String url="jdbc:oracle:thin:@localhost:1521:orcl";//@主机名:监听端口:数据库实例名称,Attention notes:the port is generally 1521

     String name = "system";//登录名

     String pwd = "orcl";//登陆密码

     

     private static Statement sql = null;   

     private static ResultSet rs = null;

     private static Connection con = null;

 

     public Connection getCon() 

     {

         try 

         {

              Class.forName(driver); //注册oracle数据库驱动

         } 

         catch (ClassNotFoundException e1)

         {

             System.out.println("驱动加载失败!");

             e1.printStackTrace();

         }

         try 

         {

             con = DriverManager.getConnection(url, name, pwd);//获取连接字符串

         } 

         catch (SQLException e) 

         {

             System.out.println("驱动或数据库连接失败！");

             e.printStackTrace();

         }

         return con;

     }

 

     public static void main(String[] args) 

     {

    	 try

    	 {

	         oracle db = new oracle();

	         Connection con = db.getCon();

	         if (con != null) 

	         {

	             System.out.println("数据库连接成功！");

	         } 

	         else 

	         {

	             System.out.println("数据库连接失败！");

	         }

	         sql = con.createStatement();         

	         rs = sql.executeQuery("select * from students");

	         System.out.println("编号\t学号\t姓名\t性别\t出生日期");

	         while (rs.next())

	         {

	        	 System.out.println(rs.getInt(1)+"\t"+rs.getString(2)+"\t"+rs.getString(3)+"\t"+rs.getString(4)+"\t"+rs.getString(5));

	         }



    	 }

    	 catch(Exception e)

    	 {

    		 e.printStackTrace();        

    	 }

     }

 }

3.测试结果：