答:程序如下：
package hello.ant;
import java.sql.*;
public class jdbc
{
String dbUrl=jdbc:oracle:thin:@127.0.0.1:1521:orcl;
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();
}
}
}
posted on 2007-04-12 19:10
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Jdbc、Jdo、Database方面