对 nginx 中的尾部斜杠行为有点困惑 [英] A little confused about trailing slash behavior in nginx

问题描述

nginx 中的尾随斜线最近让我有些不眠之夜.请求一些帮助

Trailing Slash in nginx has been giving me some sleepless nights lately. Requesting some help with this

问题:proxy_pass 中奇怪的尾部斜杠行为.

Question : Strange trailing slash behavior in proxy_pass.

那为什么会这样:

location /myapi/ {
      proxy_pass   http://node_server8/;
    }

这不会

location /myapi/ {
      proxy_pass   http://node_server8;
    }

注意第二个代码块中 http://node_server8 末尾缺少的尾部斜杠.这特别奇怪，因为我有一些其他配置，在后端没有斜杠，并且一切正常.

Notice the missing trailing slash at the end of http://node_server8 in second code block. This is specially strange as I have a few other configurations where I don't have a trailing slash on the backend and all works fine.

推荐答案

它们完全不同.

在第一个 proxy_pass 语句中，您包含了一个值为 / 的 URI 参数.在第二个你还没有.

In the first proxy_pass statement you have included a URI parameter with a value of /. In the second you haven't.

当您给 proxy_pass 一个 URI 参数(在前缀 location 内)时，它会像 alias 函数一样转换请求的 URI，从而location 指令的值替换为 URI 参数的值.例如 /myapi/foo 在被上游传递之前变成了 /foo.

When you give proxy_pass a URI parameter (within a prefix location), it transforms the requested URI similarly to the alias function, whereby the value of the location directive is substituted for the value of the URI parameter. For example /myapi/foo becomes /foo before being passed upstream.

如果您没有为 proxy_pass 提供 URI 参数，则不会发生任何转换，并且请求 /myapi/foo 会原封不动地向上游传递.

If you do not provide proxy_pass with a URI parameter, no transformation takes place, and the request /myapi/foo is passed upstream unchanged.

有关详细信息，请参阅本文档.

See this document for details.

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