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我将mcDropdown用于我的多级选择框，但处理多级有时非常棘手。我想知道是否有任何推荐的替代品？
我的应用程序的文件夹结构如下。
web/WEB-INF/templates/ -home.ftl web/resources/css/Home_files -test.css
当同时使用<mvc:annotatio
<mvc:annotatio