public void sendQuery(String Select, String Where) { // Driver="com.mysql.jdbc.Driver" try { jc = JAXBContext.newInstance("org.vamdc.xsams"); m = jc.createMarshaller(); m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE); rs = con.createStatement().executeQuery("select " + Select + " from vald " + Where); ResultSetMetaData rsmd = rs.getMetaData(); colCount = rsmd.getColumnCount(); } catch (Exception e) { System.out.println(e.toString()); } }