控制文字长度，多出的文字用省略号代替

<div STYLE="overflow: hidden; text-overflow: ellipsis; width: 100px">
<nobr>123456789123456789</nobr>
</div>

<%=(“返回内容”.length()>=150?download.getDescribes().substring(0,150)+"...":download.getDescribes())%>


<bean:define   id="describesMark"   name="download"   property="describes"   type="java.lang.String"/>
         <%=(describesMark.length()>=150?describesMark.substring(0,150)+"...":describesMark)%>