Common status codes for page error reporting

Reference resources ：https://www.cnblogs.com/JoyceT/p/14190411.html

The outline

• Status code category
• Common status code
• Other status codes

Status code category

Status code	Category	explain
1xx	Informational status code Informational	The request is being processed
2xx	Success status code Success	The request is processed normally
3xx	Redirect the status code Redirection	Additional operations are required to complete the request
4xx	Client error status code Client Error	The server was unable to process the request
5xx	Server error status code Server Error	Server processing request error