NGINX $ request_uri和$ uri [英] NGINX $request_uri vs $uri

问题描述

您如何确定何时使用$request_uri和$uri?

How do you determine when to use $request_uri vs $uri?

根据NGINX文档，$request_uri是原始请求(例如，/foo/bar.php?arg=baz包含参数且不能修改)，但是$uri指的是更改后的URI.

According to NGINX documentation, $request_uri is the original request (for example, /foo/bar.php?arg=baz includes arguments and can't be modified) but $uri refers to the altered URI.

如果URI不变，那么$ uri = $ request_uri吗?

If the URI doesn't change, does $uri = $request_uri?

使用不正确，更好或更差的东西吗?

Would it be incorrect or better or worse to use:

map $uri $new_uri {
  # do something
}

vs

map $request_uri $new_uri {
  # do something
}

推荐答案

$uri不等同于$request_uri.

$uri变量被设置为nginx当前正在处理的URI -但也要进行标准化，包括:

The $uri variable is set to the URI that nginx is currently processing - but it is also subject to normalisation, including:

• 删除?和查询字符串
• 连续的/字符被单个/
替换
• URL编码字符被解码

• Removal of the ? and query string
• Consecutive / characters are replace by a single /
• URL encoded characters are decoded

$request_uri的值始终是原始URI，并且不受上述任何规范化的约束.

The value of $request_uri is always the original URI and is not subject to any of the above normalisations.

大多数情况下，您会使用$uri，因为它已标准化.在错误的位置使用$request_uri可能导致URL编码的字符变得双重编码.

Most of the time you would use $uri, because it is normalised. Using $request_uri in the wrong place can cause URL encoded characters to become doubly encoded.

如果需要匹配URI及其查询字符串，请在map指令中使用$request_uri.

Use $request_uri in a map directive, if you need to match the URI and its query string.

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