在相应类的form.jsp 将selectMultiple改成false
<div class="control-group">
<label class="control-label">图片路径:</label><div class="controls">
<form:hidden id="picurl" path="picurl" htmlEscape="false" maxlength="128" class="input-xlarge"/>
<sys:ckfinder input="picurl" type="files" uploadPath="/upload/shopGoodsPic" selectMultiple="false"/>
</div>
</div>