mybatis-plus/mybatis-plus-core/src/test/resources/MybatisXMLConfigBuilderTest.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
    PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
    "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <mappers>
        <mapper class="com.baomidou.mybatisplus.core.MybatisXMLConfigBuilderTest$EntityMapper"/>
    </mappers>
</configuration>