Status Codes¶
Normal
Returned Value
Description
200
The request is successfully processed.
Abnormal
Status Code
Status
Description
400
Bad Request
The server fails to process the request.
401
Unauthorized
The requested page requires a username and a password.
403
Forbidden
Access to the requested page is denied.
404
Not Found
The server fails to find the requested page.
405
Method Not Allowed
Method specified in the request is not allowed.
406
Not Acceptable
Response generated by the server is not acceptable to the client.
407
Proxy Authentication Required
Proxy authentication is required before the request is processed.
408
Request Timeout
A timeout error occurs because the request is not processed within the specified waiting period of the server.
409
Conflict
The request cannot be processed due to a conflict.
500
Internal Server Error
The request is not processed due to a server error.
501
Not Implemented
The request is not processed because the server does not support the requested function.
502
Bad Gateway
The request is not processed, and the server receives an invalid response from the upstream server.
503
Service Unavailable
The request is not processed due to a temporary system abnormality.
504
Gateway Timeout
A gateway timeout error occurs.