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:  String db_url = "jdbc:mysql://localhost/blue"; --> String db_url = "jdbc:mysql://localhost<U>:3306</U>/blue" mysql 사용 포트번호를 안적으신듯.. : [에러 메세지] : : org/gjt/mm/mysql/Driver : java.sql.SQLException: driver not found: jdbc:mysql://localhost/xxx : :  : : [코드] : : try :  { :      Class.forName("org.gjt.mm.mysql.Driver"); :  } :  catch(ClassNotFoundException e){System.out.println(e.getMessage());} : :  String db_url = "jdbc:mysql://localhost/blue"; :  Connection Conn = DriverManager.getConnection(db_url,"###","###"); : :  Statement stmt = Conn.createStatement(); :  ResultSet rs = stmt.executeQuery("select title from test  limit 3"); :  while (rs.next()) { :    System.out.println(new String(rs.getString(1))); :  } : : :  : :  : : // 머가 문제인지 잘 모르겠어요 : : 드라이버는...{JavaHome}/jre/lib/ext 에설치 되 있어요--봄이다.. 하늘이 뿌연 봄..

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