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：