Javascript URL 编码将“&”（与号）视为“&” HTML 实体
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URL encode sees “&” (ampersand) as “&” HTML entity
提问by dododedodonl
I am encoding a string that will be passed in a URL (via GET). But if I use escape, encodeURIor encodeURIComponent, &will be replaced with %26amp%3B, but I want it to be replaced with %26. What am I doing wrong?
我正在编码一个将在 URL 中传递的字符串（通过 GET）。但是如果我使用escape, encodeURIor encodeURIComponent,&会被替换为%26amp%3B，但我希望它被替换为%26。我究竟做错了什么？
回答by Andy E
Without seeing your code, it's hard to answer other than a stab in the dark. I would guess that the string you're passing to encodeURIComponent(), which is the correct method to use, is coming from the result of accessing the innerHTMLproperty. The solution is to get the innerText/textContentproperty value instead:
没有看到你的代码，除了在黑暗中刺伤之外，很难回答。我猜想您传递给encodeURIComponent()的字符串是正确的使用方法，它来自访问innerHTML属性的结果。解决方案是获取innerText/ textContent属性值：
var str,
el = document.getElementById("myUrl");
if ("textContent" in el)
str = encodeURIComponent(el.textContent);
else
str = encodeURIComponent(el.innerText);
If that isn't the case, you can use the replace()method to replace the HTML entity:
如果不是这种情况，您可以使用replace()方法替换 HTML 实体：
encodeURIComponent(str.replace(/&/g, "&"));
回答by Nick Craver
If you did literally this:
如果你真的这样做：
encodeURIComponent('&')
Then the result is %26, you can test it here. Make sure the string you are encoding is just&and not &to begin with...otherwise it is encoding correctly, which is likely the case. If you need a different result for some reason, you can do a .replace(/&/g,'&')before the encoding.
那么结果就是%26，你可以在这里测试一下。确保您正在编码的字符串只是&而不是&开始...否则它编码正确，这很可能是这种情况。如果由于某种原因需要不同的结果，则可以.replace(/&/g,'&')在编码之前执行 a 。
回答by Matas Vaitkevicius
There is HTML and URI encodings. &is &encoded in HTMLwhile %26is &in URI encoding.
有 HTML 和 URI 编码。&是&在HTML编码而%26是&在URI编码。
So before URI encoding your string you might want to HTML decode and then URI encode it :)
因此，在对字符串进行 URI 编码之前，您可能需要先进行 HTML 解码，然后再进行 URI 编码：)
var div = document.createElement('div');
div.innerHTML = '&AndOtherHTMLEncodedStuff';
var htmlDecoded = div.firstChild.nodeValue;
var urlEncoded = encodeURIComponent(htmlDecoded);
result %26AndOtherHTMLEncodedStuff
结果 %26AndOtherHTMLEncodedStuff
Hope this saves you some time
希望这可以为您节省一些时间
