blocks|key|1710789|text|什么样的客户端会发送像/pictures/M%25F6bel.png这样的无效URL？总之：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1710790|var+path+=+"/pictures/M%25F6bel.png"
++.replace(/%25u(....)/g,+(m,p)=>String.fromCharCode("0x"%2Bp))
++.replace(/%25(..)/g,+(m,p)=>String.fromCharCode("0x"%2Bp))|code-block|syntax|javascript|1710791|然后encodeURI(path)给出了百分比编码版本la+utf-8。|1710792|这允许您编写类似于|1710793|app.use(function(req,+res,+next)+{
++try+{
++++decodeURI(req.url);
++}+catch(e)+{
++++if+(e.message+===+"URI+malformed")
++++++req.url+=+encodeURI(req.url
++++++++.replace(/%25u(....)/g,+(m,p)=>String.fromCharCode("0x"%2Bp))
++++++++.replace(/%25(..)/g,+(m,p)=>String.fromCharCode("0x"%2Bp)));
++}
++next();
});|1710794|请注意，以这种方式更改req.url也会自动更改req.path。相反，req.originalUrl保持不变(顾名思义)。|1710795|这不适用于在Windows1252中定义的字符，但不适用于Unicode中的字符(比如0x80-0x9F范围)。这种字符在URL中是不允许的。|1710796|entityMap^0|B|L|0|0|2|F|0|0|0|B|7|O|8|10|F|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|13|8|@]|D|@]|E|$]]|$1|O|3|P|5|H|7|14|8|@]|D|@]|E|$I|J]]|$1|Q|3|R|5|6|7|15|8|@$9|16|A|17|B|C]|$9|18|A|19|B|C]|$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|S|3|T|5|6|7|1C|8|@]|D|@]|E|$]]|$1|U|3|-4|5|6|7|1D|8|@]|D|@]|E|$]]]|V|$]]

What type of client would send an invalid URL like <code>/pictures/M%F6bel.png</code>? Anyway:
<pre class="lang-js prettyprint-override"><code>var path = &quot;/pictures/M%F6bel.png&quot;
 .replace(/%u(....)/g, (m,p)=&gt;String.fromCharCode(&quot;0x&quot;+p))
 .replace(/%(..)/g, (m,p)=&gt;String.fromCharCode(&quot;0x&quot;+p))
</code></pre>
and <code>encodeURI(path)</code> then gives the percent-encoded version à la utf-8.
This allows you to write a middleware like
<pre class="lang-js prettyprint-override"><code>app.use(function(req, res, next) {
 try {
 decodeURI(req.url);
 } catch(e) {
 if (e.message === &quot;URI malformed&quot;)
 req.url = encodeURI(req.url
 .replace(/%u(....)/g, (m,p)=&gt;String.fromCharCode(&quot;0x&quot;+p))
 .replace(/%(..)/g, (m,p)=&gt;String.fromCharCode(&quot;0x&quot;+p)));
 }
 next();
});
</code></pre>
Note that changing <code>req.url</code> in this way automatically changes <code>req.path</code> as well. By contrast, <code>req.originalUrl</code> remains unchanged (as its name might suggest).
This does not work on characters that are defined in Windows-1252 but not in Unicode (like the range 0x80-0x9F). Such characters are not allowed in URLs.

My Express server cannot handle requests with the windows-1252 character set because Express router puts the path in the <code>decodeURIComponent()</code> method and throws an error. My idea now is to call the <code>decodeURIComponent()</code> method myself in a middleware, catch the error and then try to work with a replacement. I have already found a corresponding table in section ASCII Encoding Reference in <a href="https://www.w3schools.com/tags/ref_urlencode.ASP" rel="nofollow noreferrer">https://www.w3schools.com/tags/ref_urlencode.ASP</a>
My first question is, is this possible?
My second question is, is there a package for this? I have to rely on <code>require</code> statements, I can't include packages with <code>import</code>.
An example path
<code>/pictures/M%F6bel.png</code>
should convert to <code>/pictures/M%C3%B6bel.png</code> so that the rest of the express logic can remain untouched.

Nodejs convert windows-1252 to utf-8 in express

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我的快递服务器无法处理带有windows-1252字符集的请求，因为Express路由器将路径放置在decodeURIComponent()方法中并引发错误。我现在的想法是自己在中间件中调用decodeURIComponent()方法，捕捉错误，然后尝试使用替换方法。我已经在中的ASCII编码参考部分找到了相应的表我的...

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