nginx 使用地图重定向多个 URL [英] nginx redirect multiple URLs with map

问题描述

我正在尝试使用 map 指令将一堆旧 URL 重定向到新 URL.我能够做简单的，但有点卡在带有查询参数的那些上.

I am trying to redirect a bunch of old URLs into new URls with the map directive. I am able to do the simple ones but kinda stuck on the ones with query parameters.

我需要这样做

/people.php?personid=20 -> /people/20
/events.php/eventid=20 -> /event/20
/info.php?name=john&age=20 -> /person/john/20

我有一个地图指令

map $request_uri $redirected_uri {
~^people.php\?personid=(.*)^ /people/$1?;
}

但似乎不起作用.任何帮助，将不胜感激.提前致谢.

But doesn't seem to work. Any help would be appreciated. Thanks in advance.

我的服务器块有这个代码

My server block has this code

if ($redirected_uri) {
   rewrite  ^ $redirected_uri permanent;
}

此外，我也在尝试执行以下操作将/people/20 改写回 people.php?personId=20所以，为此，我有这个

Also, I am trying to do the following as well rewrite /people/20 back to people.php?personId=20 So, for that, I have this

map $request_uri $new_uri {
default 0
~^/people/(.*) /people.php?personId=$1;
}

然后在服务器块

if ($new_uri) {
rewrite ^ $new_uri last; // this doesn't work, throws 404
}

推荐答案

只要计算另一个正则表达式，数字捕获就会超出范围，因此 rewrite 语句本身会擦除 $1 来自前面的 map 语句.

The numeric capture goes out of scope as soon as another regular expression is evaluated, so the rewrite statement itself wipes the value of $1 from the previous map statement.

您可以改用 return 语句:

if ($redirected_uri) {
    return 301 $redirected_uri;
} 

或者更好的是，在 map 中使用命名捕获:

Or better still, use a named capture in the map:

map $request_uri $redirected_uri {
~^/people\.php\?personid=(?<personid>.*)$ /people/$personid;
}

另请注意，Nginx URI 以 / 开头，您有一个未转义的 .，正则表达式末尾的正确锚点是 $.

Note also that Nginx URIs begin with a leading /, you had an unescaped ., and the correct anchor for the end of a regular expression is $.

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