报错：
mybatis-plus在mapper.xml中自定义查询语句时报如下错误：

org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.XXX.XXX.mapper.XXXMapper.XXX

解决：
在application.xml 配置

mapper-locations: classpath:/com/XXX/mapper/*.xml

pom.xml 配置

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
        <resources>
            <!--引入mapper对应的xml文件-->
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>
    </build>