mybatis映射mapper.xml文件找不到

maven项目在pom文件中加入如下配置即可解决
<build>
    <resources>
        <!--拷贝xml文件到classpath下-->
        <resource>
            <directory>src/main/java</directory>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>false</filtering>
        </resource>
    </resources>
</build>