Struts标簽中截取内容

有的時候需要顯示的内容過長，需要截取。例子如下：

<s:iterator value="data.datas" var="d" status="st">

        <tr align="center">

         <td>

          <input style="width: 30px" type="checkbox"

           value="<s:property value="#d.num" />" />

         </td>

               <s:property value="#d.num" />

              <s:if test="#d.name.length()>10">

                  <s:property value="#d.name.substring(0,10)+'.......' " />

              </s:if>

              <s:else>

                  <s:property value="#d.name" />

             </s:else>

        </tr>

 </s:iterator>