JCConf Taiwan 2020影片

https://www.youtube.com/playlist?list=PLEhSHDVBMPO3YBi5UiGNXlDlPLakz-AGi

官網: https://jcconf.tw/2020/

共筆: https://hackmd.io/@JCConf/2020/

New Java Features Released in 2020

https://www.youtube.com/watch?v=6OvUBR1bcHk&list=PLEhSHDVBMPO3YBi5UiGNXlDlPLakz-AGi&index=17

HttpURLConnection用法详解

 https://www.cnblogs.com/guodongli/archive/2011/04/05/2005930.html