为什么我的服务器响应状态代码是200而不是200 OK？

Question

I created a web application by spring boot .But i find the response status code is 200

instead of 200 ok

.

And i use return new ResponseEntity<>("xx",HttpStatus.OK); ,the response code is also 200 .

Answer 1

The 'other application' is at fault. From RFC 2616 :

6.1.1 Status Code and Reason Phrase

The Status-Code element is a 3-digit integer result code of the attempt to understand and satisfy the request. These codes are fully defined in section 10. The Reason-Phrase is intended to give a short textual description of the Status-Code. The Status-Code is intended for use by automata and the Reason-Phrase is intended for the human user. The client is not required to examine or display the Reason- Phrase.

Emphasis added. The 'other application' is an automaton, not a human user, and therefore should only be looking at the Status-Code.