查看target目录下是否有mapper对应的xml文件,如果没有,在pom文件中添加如下信息:
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>