REST API中如何使用Http状态码

Status-Line The first line of a Response message is the Status-Line, consisting of the protocol version followed by a numeric status code and its associated textual phrase, with each element separated by SP characters. No CR or LF is allowed except in the final CRLF sequence. Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF status code vs status in body The main choice is do you want to treat the HTTP status code as part of your REST API or not.