资源下载网址

DBCP

DBCP – Download Apache Commons DBCP

POOL

https://commons.apache.org/proper/commons-pool/download_pool.cgi

Tomcat

Apache Tomcat® - Apache Tomcat 9 Software Downloads

Maven

Maven – Welcome to Apache Maven

Maven仓库

https://mvnrepository.com/

Mysql

https://downloads.mysql.com/archives/installer/