首先，参考一下众多文章中，把接口回调讲得比较浅显易懂的两篇文章：浅谈Java回调机制20160409wa\_lid阿里百川(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fmp.weixin.qq.com%2Fs%2FgGccIRfdL2acBitPhD4mg)Jav

作者|声东阿里云售后技术专家文章来源：Docker，点击查看原文(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fmp.weixin.qq.com%2Fs%3F__biz%3DMzA5OTAyNzQ2OA%3D%3D%26mid%3D2649702274%26idx%3D1