集成idea maven: https://www.cnblogs.com/daojiao/p/10270489.html
集成idea tomcat: https://www.cnblogs.com/guogangj/p/3725371.html
How to Cut mac: https://jingyan.baidu.com/article/915fc414ac8f4c51394b2097.html
mac under the idea of shortcuts: https://jingyan.baidu.com/article/915fc414ac8f4c51394b2097.html