NOTE

2.12 URL Encoding

A short historical note on why URL encoding is needed and how URLs are encoded.

Computer NetworksCreated 01/17/2020Updated 02/27/20221 min readhistorical

This is a historical learning note and may contain outdated or incomplete understanding.

1. Why Is URL Encoding Needed?

A URL can use only English letters, Arabic numerals, and certain punctuation marks; other text and symbols cannot be used directly. Other characters need to be escaped using % character encoding.

2. How to Encode

In the path: UTF-8 encoding is used.
In GET query parameters: the operating system’s default encoding is used. Use encodeURI for encoding.

3. Reference

关于URL编码 - 阮一峰的网络日志

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