package hello.ant;    
import java.sql.*;    
public class jdbc    
{    
String dbUrl="jdbc racle:thin 127.0.0.1:1521 rcl";    
String theUser="admin";    
String thePw="manager";    
Connection c=null;    
Statement conn;    
ResultSet rs=null;    
public jdbc()    
{    
try{    
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();    
c = DriverManager.getConnection(dbUrl,theUser,thePw);    
conn=c.createStatement();    
}catch(Exception e){    
e.printStackTrace();    
}    
}    
public boolean executeUpdate(String sql)    
{    
try    
{    
conn.executeUpdate(sql);    
return true;    
}    
catch (SQLException e)    
{    
e.printStackTrace();    
return false;    
}    
}    
public ResultSet executeQuery(String sql)    
{    
rs=null;    
try    
{    
rs=conn.executeQuery(sql);    
}    
catch (SQLException e)    
{    
e.printStackTrace();    
}    
return rs;    
}    
public void close()    
{    
try    
{    
conn.close();    
c.close();    
}    
catch (Exception e)    
{    
e.printStackTrace();    
}    
}    
public static void main(String[] args)    
{    
ResultSet rs;    
jdbc conn = new jdbc();    
rs=conn.executeQuery("select * from test");    
try{    
while (rs.next())    
{    
System.out.println(rs.getString("id"));    
System.out.println(rs.getString("name"));    
}    
}catch(Exception e)    
{    
e.printStackTrace();    
}    
}    
}   

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/zoika/archive/2009/08/21/4468922.aspx