jsp轉換long爲日期格式

<jsp:useBean id="beforeRefreshTime" class="java.util.Date" />
<jsp:setProperty name="beforeRefreshTime" property="time" value="${sandBoxInfoJson.beforeRefreshTime}"/>
<fmt:formatDate value="${beforeRefreshTime}" type="date" dateStyle="long" pattern="dd/MM/yyyy HH:mm:ss"/>