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