<c:if>判断参数是否同时为空
<c:if test="${empty str}"> str为空</c:if>
<c:if test="${not empty str}"> str不为空</c:if>
例子:
<c:if test="${empty Itirann_wakazuFlg && empty Itirann_syoukaiFlg }"> <tr align="center" height="20" bgcolor="#FFB56A"> <td width="100">名前</td> <td width="40">年代</td> <td width="40">性別</td> <td width="120">直近</td> <td width="110">仕事経験</td> <td>労働条件通知書</td> </tr> </c:if>