如何用 Nginx 替换下划线以破折号 [英] How to replace underscore to dash with Nginx

问题描述

我是第一次使用 Nginx，对它基本上一无所知.

I'm using Nginx for the first time ever, and got basically no knowledge of it.

我需要将 100 多个 URL 中的_"替换为-".我想一定有一种简单的方法可以用 Nginx 做到这一点，但在 Google 上找不到任何东西.

I need to replace "_" with "-" in 100+ URL. I figured there must be an easy way to do this with Nginx, but can't find anything on Google.

谢谢！

我的网址例如:http://www.mywebsite.com/this_category/page1.php

我需要把它变成:http://www.mywebsite.com/this-类别/page1.php

推荐答案

2013-04 和 2015 年对这个问题的现有答案都相当不理想和丑陋——一个依赖于太多的复制粘贴并且错误处理/报告不清楚，另一个涉及到客户端处理数量不确定的不必要的 301 Moved 交互.

Both existing answers to this question from 2013-04 and 2015 are rather suboptimal and ugly — one relies on too much copy-paste and has unclear error handling/reporting, and another one involves having an undefined number of unnecessary 301 Moved interactions for the client to handle.

有更好的方法，隐藏在 2013 年的 QA 对中-02 — 仅在 2013-04 年提出的这个问题之前几个月！它涉及依赖 last 参数的 http://nginx.org/r/rewrite 指令，如果 last 结果匹配，这将导致 nginx 停止处理重写指令，并返回寻找适当的新"location 根据修改后的 $uri，导致 nginx 内最多 10 次的内部重定向循环(例如，10 次内部重定向，根据 http://nginx.org/r/internal)，如果超过 10 个周期的限制，则记录 500 Internal Server Error.

There's a better way, hidden in plain sight at a QA pair from 2013-02 — only a couple of months prior to this very question from 2013-04! It involves relying on the last parameter for the http://nginx.org/r/rewrite directive, which will cause nginx to stop processing the rewrite directives should one with last result in a match, and go back in search of an appropriate "new" location per the modified $uri, causing an internal redirect loop within nginx for up to 10 times (e.g., 10 internal redirects, as per http://nginx.org/r/internal), recording a 500 Internal Server Error if you exceed the limit of 10 cycles.

从某种意义上说，这个答案与原始答案相似，只是您免费获得了 10 倍的额外系数，从而减少了复制粘贴的要求.

In a sense, this answer is similar to the original one, it's just that you get an extra factor of 10 for free, resulting in fewer copy-paste requirements.

# Replace maximum of 3 or 1 underscores per internal redirect,
# produce 500 Internal Server Error after 10 internal redirects, 
# supporting at least 28 underscores (9*3 + 1*1) and at most 30 (10*3).
location ~ _ {
    rewrite "^([^_]*)_([^_]*)_([^_]*)_(.*)$" $1-$2-$3-$4 last;
    rewrite "^([^_]*)_(.+)$" $1-$2 last;
    return 301 $uri;
}

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