jsp 判断时间大小

            <%
                SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                Date dstart = sdf.parse("2017-11-01 0:00:00");
                Date dend = sdf.parse("2017-11-09 0:00:00");
                Date dcur = sdf.parse((String)request.getAttribute("currentTime"));
                request.setAttribute("dstart",dstart);
                request.setAttribute("dend",dend);
                request.setAttribute("dcur",dcur);
            %>
            <c:choose>
                <c:when test="${(dcur.getTime()-dstart.getTime() > 0)&&(dcur.getTime()-dend.getTime() < 0)}">
                    <li class="jsBtn"  style="background-color: #908e8e;"><a href="javascript:;" style="font-size:12px">惺惺惜惺惺想寻</a></li>
                </c:when>
                <c:otherwise>
                    <li class="jsBtn"><a href="javascript:aclick();">啦啦啦啦</a></li>
                </c:otherwise>
            </c:choose>