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检查是否连接到互联网？求一个优雅的思路

 4 years ago
source link: https://www.v2ex.com/t/656983
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Linux - @black11black - 如题，业务需要程序自检是否能连接到互联网，如果断网需要立即做出反应，要求是反应足够快。一个简单的想法是每秒访问指定网站，来检测连通性，这样可以规避一些“假连通”的情况，但是稳定提供服务的网站很

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