The error may exist in com/kuang/dao/UserMapper.xml

问题原因：在java包下创建了xml文件，但是maven运行时候是找的resource文件下的配置文件，不能导入java包下的配置文件，

解决办法：
pom文件中添加配置信息，就能找到配置文件了：

<!--在build中配置文件resources，来防止我们资源导出失败的问题-->
    <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>

标签：xml,src,java,配置文件,may,kuang,main,true
来源： https://blog.csdn.net/zhanlong11/article/details/115048663