What is the difference between apache tomcat deployer and core version? - Stack Overflow

java - What is the difference between apache tomcat deployer and core version? - Stack Overflow
https://stackoverflow.com/questions/32942387/what-is-the-difference-between-apache-tomcat-deployer-and-core-version

Tomcat网站上的core和deployer的区别 - 孤夏 - 博客园
http://www.cnblogs.com/guxia/p/6678184.html