Mybatis java.lang.ExceptionInInitializerError ### The error may exist in com/rzk/dao/UserMapper.xml

 由于Maven的约定大于配置，可能遇到的文件配置文件无法被导出或者生效问题 

解决方案：

 

在pom.xml配置

<build>
    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>true</filtering>
        </resource>
        <resource>
            <directory>src/main/java</directory>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>true</filtering>
        </resource>
    </resources>
</build>