js select 默认回显判断

         <select >
                        <option value="">请选择</option>
                        <option value="1" <c:if test="${'1' eq dataselect}">selected</c:if> >近一周</option>
                        <option value="2" <c:if test="${'2' eq dataselect}">selected</c:if> >近一月</option>
                        <option value="3" <c:if test="${'3' eq dataselect}">selected</c:if>>近一年</option>
             </select>
<c:if test="${'1' eq dataselect}">selected</c:if>