它显示文本的空白区域,但它没有采取任何输入我不知道有什么问题
<div class="row">
<div class="form-group col-md-12">
<label class="col-md-3 control-lable" for="firstName">First
Name</label>
<div class="col-md-7">
<form:input type="text" path="firstName" id="firstName"
class="form-control input-sm" />
<div class="has-error">
<form:errors path="firstName" class="help-inline" />
</div>
</div>
</div>
</div>