<?xml version="1.0" encoding="utf-8" ?>

<configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xsi:noNamespaceSchemaLocation="http://www.padual.com/java/logback.xsd">


</configuration>

參考

java - XML schema or DTD for logback.xml? - Stack Overflow https://stackoverflow.com/questions/5731162/xml-schema-or-dtd-for-logback-xml

logback-spring.xml的schema