使用報"找不到相關屬性""的錯誤

<%--
寫了如下一段代碼,報如下錯誤
javax.el.PropertyNotFoundException: Property 'id' not found on type java.lang.String
檢查好幾遍,clientPageModel.list明明就有id屬性

錯誤原因,clientPageModel.list忘了寫在${}裏面
 --%>
<c:forEach items="clientPageModel.list" var="client">

<tr>
	<td class="rd8">
		<input type="radio" name="selectFlag" value="${client.id }"
			onDblClick="selectOk()">
	</td>
	<td class="rd8">
		${client.clientId }
	</td>
	<td class="rd8">
		${client.name }
	</td>
	<td class="rd8">
		${client.clientLevel.name }
	</td>
</tr>