Java 语句总结

一.替代if语句
x = a ? b:c; 等价：if (a){ x=b;}else{x=c;}
二。
页面展示二维数组
 <s:iterator var="rt" value="#request.list" status="i">
      <s:if test="#rt[0]!=null">
       <tr>
        <td class="f14">
         <div id="results" name="results">
          <p id="title">
           <a href="${rt[0]}" target="_blank">
           <!--标题 -->${rt[1]} </a>&nbsp;&nbsp;
          </p>
          <s:property value="#i.index"/>摘要：
          <div id="simpleContent" style="size: 4px">
           ${rt[2]}
          </div>
         </div>
        </td>
       </tr>
       </s:if>
      </s:iterator>