The underlying connection was closed错误

最新推荐文章于 2023-12-10 22:23:21 发布
原创 最新推荐文章于 2023-12-10 22:23:21 发布 · 3.4k 阅读 · 0 ·
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本文详细介绍了在处理Asp.net程序抓取时报错'The underlying connection was closed: Unable to connect to the remote server'时的排查步骤及解决方案，包括检查代理设置、防火墙状态、自动检测设置、重新安装.NET Framework以及调整HTTP请求的KeepAlive属性等方法。通过实践案例分析，帮助开发者快速定位问题并有效解决问题。

今天理IIS上Asp.net程序的所有报错日志，发现好报The underlying connection was closed: Unable to connect to the remote server. 于是搜了下，发现很多人遇到这个异常，可是却没有标准的解决方案，一般有一下几种。

1.如果用了代理，设置正确。
2.如果用了firewall，将firewall禁掉试试。
3.将Lan设置中的Automatically Detect Settings禁掉。
4.重装.Net Framework。
5.如果用了抓取，可以将HttpWebRequest的KeepAlive属性设置为false，HttpWebRequest的KeepAlive属性默认是true

对应我线上的程序，1、2、3、4都可以排除，我的就是抓取时报这个错，采用了第5种方法后，异常消失了。



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