文件结构是这个样子,mapper.xml文件在resources/mappers/fdms目录下面

通常来说, 将mapper打包到target目录下只需要在maven下面配置

 

 <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
                <includes>
                    <include>com.dtcloud.soe/*</include>
                    <include>**/*.xlsx</include>
                    <include>*.xml</include>
                    <include>*.yml</include>
                    <include>*.json</include>
                    <include>*.properties</include>
                    <include>*.conf</include>
                    <include>mappers/fdms/*.xml</include>
                </includes>
            </resource>
            <resource>
                <directory>src/main/resources/${profiles.active}</directory>
                <filtering>false</filtering>
            </resource>
        </resources>

就行了,但是我配置好了还是不行,经过仔细检查之后发现 , 原来我的目录结构错了, 我的是这样子的

但是在idea中完全看不出来,

这个问题有时候非常难以发现, 必须要打开文件结构才能发现, 是一个很隐秘的坑