Intellij idea 告警：URI is not registered (Settings | Languages & Frameworks | Schemas and DTDs)

URI is not registered (Settings | Languages & Frameworks | Schemas and DTDs)

一、快捷键方式

鼠标移动到出错的的地方，alt+enter，选择"Ignored ..." 。

二、手工配置

Settings -> Languages & Frameworks -> Schemas and DTDs -> 添加url到Ignored Schemas and DTDs列表即可。