摘要：
https://zhuanlan.zhihu.com/p/346086161 https://tech.meituan.com/2020/04/02/java-pooling-pratice-in-meituan.html 阅读全文
摘要：
https://blog.csdn.net/fen_fen/article/details/122909142 https://blog.csdn.net/vincent_duan/article/details/100880799 阅读全文