spring mvc后台获取页面级联主键

[jayyunfei]

我在页面中是这样写的
<form:form id="tranType" modelAttribute="viewCountsDay" action="${ctx}/account/viewCountsDay/card" method="post">
<fieldset class="prepend-top">
<div>
<label class="field">交易类型查询:</label>
<input type="text" id="tranType" name="viewCountsDay_countsPKID_tranType" size="20" />
<label class="field">商户号查询:</label>
<input type="text" id="merchantID" name="viewCountsDay_countsPKID_merchantID" size="20" />
<input id="submit" class="button" type="submit" value="提交"/> 
<input id="cancel" class="button" type="reset" value="重置" />
</div>
</fieldset>
</form:form>

其中countsPKID是复合主键~~~
在viewCountsDay中他是属性~~~
countsPKID类
private String merchantID;
private String tranType;
private String yearMonth;
//set,get方法

viewCountsDay类
private int counts;
private int sums;

CountsPKID countsPKID = new CountsPKID();
//set,get方法

请问我在controller中怎么获取表单中的值？求解啊~~~各位大虾~~~~

[dryZeng]

String id = request().getAttribute("viewCountsDay_countsPKID_merchantID");

[dryZeng]

楼主，你一个贴都没结啊。

[jayyunfei]

忘了，不好意思啊~~~我知道你，今天晚上会到宿舍就接~~~

[jayyunfei]

这个方法行不通，我获取request的时候报错~~~~

[dryZeng]

报什么错？