jdbc連oracle的代碼

可能會讓你寫一段Jdbc連Oracle的程序,並實現數據查詢.
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();
  }
 }
}