Generic JSTL Code That Displays Database Results

The following generic JSTL code displays database query results in a table irrespective of how many columns the ResultSet has. The table heading will contain column names.

<table width='90%'>
 <tr>
  <c:forEach var="columnName" items="${queryResults.columnNames}">
   <th><c:out value="${columnName}"/></th>
    </c:forEach>
   </tr>
 <c:forEach var="row" items="${queryResults.rows}">
  <tr>
   <c:forEach var="columnName" items="${queryResults.columnNames}">
    <td><c:out value="${row[columnName]}"/></td>
    </c:forEach>
  </tr>
  </c:forEach>
  </table>

The queryResults variable holds the ResultSet.