nodejs无法在Windows上解析'localhost' [英] nodejs cannot resolve 'localhost' on windows

问题描述

以下代码在windows下node.js产生异常:

The following code produces an exception in node.js under windows:

var Socket = require("net").Socket;

socket = new Socket();
socket.connect(80, "localhost");

这是消息:

    events.js:2083: Uncaught Error: getHostByName ENOTFOUND

当我删除 localhost 时，它工作正常.这可能是什么原因造成的?我尝试关闭防火墙，但没有效果.

When I remove localhost, it works fine. What could be causing this? I tried turning the firewall off, but to no effect.

推荐答案

node.js 使用 c-ares 解析器，完全忽略了系统解析器.所以关于 C:WINDOWSsystem32driversetchosts 的建议可能是无关紧要的.

node.js uses c-ares resolver and ignores system resolver completely. So the advices regarding C:WINDOWSsystem32driversetchosts are probably irrelevant.

c-ares 库读取某些系统配置文件 - 例如在 Windows 和 Cygwin 上，它读取/etc/resolv.conf.所以你应该检查它是否读取/etc/hosts 或 C:WINDOWSsystem32driversetchosts.如果它没有并且没有对 localhost 的内置支持 - 那么您将不得不使用 127.0.0.1

c-ares library reads certain system config files - e.g. on Windows and Cygwin it reads /etc/resolv.conf. So you should check if it reads /etc/hosts or C:WINDOWSsystem32driversetchosts. If it doesn't and doesn't have builtin support for localhost - then you will have to use 127.0.0.1

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