http状态code只是用于指示应用程序响应的状态。 正如你所说，如果JSON参数，不知何故无效，400状态code 是一个合适的答案。

http status code are just for indicating the status of the application response. and as you said, if json parameters as somehow invalid, a 400 status code is an appropriate answer.

所以是的，它是使用HTTP状态code一个很好的主意。德加，状态code是那么容易理解，因为他们没有从应用程序到另一个改变（网络服务）

so yes, it is a really good idea to use http status code. de plus, status code are then easy to understand as they don't change from an application (web services) to another