javascript - 为什么我不能在 node.js 中对这个 URL 进行 url 编码？

Question

$node
querystring = require('querystring')
var dict = { 'q': 'what\'s up' };
var url = 'http://google.com/?q=' + querystring.stringify(dict);
url = encodeURIComponent(url);
console.log(url);

结果是这样的:

"http://google.com/?q=q=what's%20up"

注意单引号是如何编码不正确的。 node.js 模块有问题吗？

Answer 1

' 在 URI 查询中是允许的。下面是对应的production rules for the URI query as per RFC 3986 :

query         = *( pchar / "/" / "?" )
pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
pct-encoded   = "%" HEXDIG HEXDIG
sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
              / "*" / "+" / "," / ";" / "="

如您所见，sub-delims 包含一个普通的'。所以结果是有效的。