前端 jsp页面缩短提示信息 fn:substring

<td style="max-width: 140px;" title="${itme.examineDesc}"> <c:if test="${fn:length(itme.examineDesc) > 20 }"> ${fn:substring(itme.examineDesc, 0, 20)}... </c:if> <c:if test="${fn:length(itme.examineDesc)<= 20 }"> ${itme.examineDesc} </c:if> </td>