Maven项目META-INF文件夹不存在的问题

直接在resources文件夹下新建 META-INF文件夹即可。

参考：

https://my.oschina.net/KingPan/blog/750159

https://stackoverflow.com/questions/17531625/how-to-include-a-config-file-in-the-meta-inf-services-folder-of-a-jar-using-ma