Important response codes in Servlets

Frequent http response codes:

100-199: warnings or Information

200-299: success

300-399: Redirection

400-499: Incomplete processing

500-599: server error

200-success & document of response follows as web page response.

201-success but no response body.

301- Given request is moved to other web resources or websites permanently.

302: Given request to web-resource is forwarded or moved to other Web-resources of website temporarity.

Note: The http response status code 300-399 comes if given request is forwarded to other web sites from the original & actually requested web-sites.

401: The user who has given request if not authorised web-site / web-resource [error].

404: Requested web-resource is not found

500: Problem in web-xml code