这个url解码后为什么还是原来的样子？

Question

https:\u002F\u002Fv2.kwaicdn.com\u002Fupic\u002F2022\u002F11\u002F05\u002F17\u002FBMjAyMjExMDUxNzA2MzdfMjE4MTY4MV84ODAyNDY5MDQ4OF8xXzM=_hd15_B35267cb0a2657012c374e632b1c42829.mp4?pkey=AAW7inBi05mLoR8Z8lVLndNS3SKgjHYxf7hx-my4ntkXZOsejWLkcQSuchTtwOqfkFebQFfPMnT59OFooAUeBmuQDyQRIg-pocqILQp1qV0c0IKoZfnH7tLP5l4jcfJdrm0&tag=1-1673190730-unknown-0-djpv2bxwxd-cb362c3fcf3384c6&clientCacheKey=3xtzmwkcjq3dx8m_hd15.mp4&di=3a3ebf74&bp=10004&tt=hd15&ss=vp

Answer 1

你的URL没有编码, 何来的解码一说?

URL编码是指用 %xx 代替一些字符, 不是说看着像乱码就是编码.

你的URL里的\u002f 这应该是 / 看着像是json encode, 不是 url encode.

Answer 2

在devtools中用decodeURI

https://v2.kwaicdn.com/upic/2...

Answer 3

这里用的ASCII的编码
https://www.matools.com/code-...

Answer 4

其实应该使用 unicode 解码工具，而不是URL解码，虽然说在控制台里面依旧可以使用 decodeURI()/encoded() 来解码。

decodeURI('https:\u002F\u002Fv2.kwaicdn.com\u002Fupic\u002F2022\u002F11\u002F05\u002F17\u002FBMjAyMjExMDUxNzA2MzdfMjE4MTY4MV84ODAyNDY5MDQ4OF8xXzM=_hd15_B35267cb0a2657012c374e632b1c42829.mp4?pkey=AAW7inBi05mLoR8Z8lVLndNS3SKgjHYxf7hx-my4ntkXZOsejWLkcQSuchTtwOqfkFebQFfPMnT59OFooAUeBmuQDyQRIg-pocqILQp1qV0c0IKoZfnH7tLP5l4jcfJdrm0&tag=1-1673190730-unknown-0-djpv2bxwxd-cb362c3fcf3384c6&clientCacheKey=3xtzmwkcjq3dx8m_hd15.mp4&di=3a3ebf74&bp=10004&tt=hd15&ss=vp')
// 'https://v2.kwaicdn.com/upic/2022/11/05/17/BMjAyMjExMDUxNzA2MzdfMjE4MTY4MV84ODAyNDY5MDQ4OF8xXzM=_hd15_B35267cb0a2657012c374e632b1c42829.mp4?pkey=AAW7inBi05mLoR8Z8lVLndNS3SKgjHYxf7hx-my4ntkXZOsejWLkcQSuchTtwOqfkFebQFfPMnT59OFooAUeBmuQDyQRIg-pocqILQp1qV0c0IKoZfnH7tLP5l4jcfJdrm0&tag=1-1673190730-unknown-0-djpv2bxwxd-cb362c3fcf3384c6&clientCacheKey=3xtzmwkcjq3dx8m_hd15.mp4&di=3a3ebf74&bp=10004&tt=hd15&ss=vp'

但是其实内部先使用了 toString() 方法，也就是说，你直接在控制台输入

'https:\u002F\u002Fv2.kwaicdn.com\u002Fupic\u002F2022\u002F11\u002F05\u002F17\u002FBMjAyMjExMDUxNzA2MzdfMjE4MTY4MV84ODAyNDY5MDQ4OF8xXzM=_hd15_B35267cb0a2657012c374e632b1c42829.mp4?pkey=AAW7inBi05mLoR8Z8lVLndNS3SKgjHYxf7hx-my4ntkXZOsejWLkcQSuchTtwOqfkFebQFfPMnT59OFooAUeBmuQDyQRIg-pocqILQp1qV0c0IKoZfnH7tLP5l4jcfJdrm0&tag=1-1673190730-unknown-0-djpv2bxwxd-cb362c3fcf3384c6&clientCacheKey=3xtzmwkcjq3dx8m_hd15.mp4&di=3a3ebf74&bp=10004&tt=hd15&ss=vp'
// 'https://v2.kwaicdn.com/upic/2022/11/05/17/BMjAyMjExMDUxNzA2MzdfMjE4MTY4MV84ODAyNDY5MDQ4OF8xXzM=_hd15_B35267cb0a2657012c374e632b1c42829.mp4?pkey=AAW7inBi05mLoR8Z8lVLndNS3SKgjHYxf7hx-my4ntkXZOsejWLkcQSuchTtwOqfkFebQFfPMnT59OFooAUeBmuQDyQRIg-pocqILQp1qV0c0IKoZfnH7tLP5l4jcfJdrm0&tag=1-1673190730-unknown-0-djpv2bxwxd-cb362c3fcf3384c6&clientCacheKey=3xtzmwkcjq3dx8m_hd15.mp4&di=3a3ebf74&bp=10004&tt=hd15&ss=vp'

也会被成功解码的。

decodeURI() - JavaScript | MDN