it cannot load classpath resource

[flyForPeakedness]

you should give aclasspath xml root or consider it, because springboot views will put into classpath Or you can make rootfxml setter can be override

[CodingNowPls]

classpath is support, you can just use "/xx/xx" . example : resources/fxml/user.fxml . ,you use "/fxml/user.fxml" is ok