struts2 标签使用 iterator 嵌套使用 s:radio 默认值

<s:iterator value="levelSequences" var="ls">
<tr>
<s:iterator value="userLevels" var="ul">
<s:if test="#ul.sequenceId==#ls.id">
<td height="22" width="33%"><span class="nam"><s:property value="#ls.levelseName" /></span>
</td><td height="22" width="33%"><span class="score"><s:property value="#ul.levelName" /></span>
</td><td height="22" width="33%"><span class="grade"><s:property value="#ul.mark" /></span>
</td>
</s:if>
<s:else>
<td height="22" width="33%"><span class="nam"><s:property value="#ls.levelseName" /></span>
</td><td height="22" width="33%"><span class="score">——</span>
</td><td height="22" width="33%"><span class="grade">——</span>
</td>
</s:else>
</s:iterator>
</tr>
</s:iterator>

<s:radio name="passGate.testsType" list="%{#{'1':'随机出题','2':'顺序出题'}}"  value="passGate.testsType" >

<s:select name="gatelevel.seQuenceId"  id="sel2" onchange="changeLevel('admin/passGateAction!ajaxLevel.action?passGate.levelSequenceID=','sel2','gateLevelId');" list="listSequence"  listKey="id" listValue="levelseName" value="gatelevel.seQuenceId" headerKey="1" headerValue="请选择闯关等级"></s:select>