在pom中添加build打包的配置 <build> <!--项目打包时会讲java目录中的*.xml文件也进行打包--> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/mapping/*.xml</include> </includes> <filtering>false</filtering> </resource> </resources></build> 在application.properties文件中添加 #配置mapper xml文件寻找的路径#此时xml必须在mapping文件夹下mybatis-plus.mapper-locations=classpath:com/study/**/mapping/*.xml