Shulou(Shulou.com)06/02 Report--

200-OK, the server successfully returned a web page-Standard response for successful HTTP requests.301-Moved Permanently (permanent jump), and the requested web page has been permanently redirected to a new location. -This and all future requests should be directed to the given.403-Forbidden (forbidden access), the server rejects the request-forbidden request (matches a deny filter) = > HTTP 403-The request was a legal request, but the server isrefusing to respond to it.404-Not Found, the server cannot find the requested page. -The requested resource could not be found but may beavailable again in the future.500-Internal Server Error (internal server error)-internal error in haproxy = > HTTP 500-A generic error message, given when no more specificmessage is suitable.502-Bad Gateway (bad gateway). Generally, when the gateway server requests the backend service, the backend service does not return the result correctly according to the http protocol. -the server returned an invalid or incomplete response= > HTTP 502-The server was acting as a gateway or proxy and receivedan invalid response from the upstream server.503-Service Unavailable (service is currently unavailable), possibly due to overload or downtime maintenance. -no server was available to handle the request = > HTTP503-The server is currently unavailable (because it isoverloaded or down for maintenance) .504-Gateway Timeout (gateway timeout). Generally speaking, when the gateway server requests the backend service, the backend service does not complete the service within a specific time. -the server failed to reply in time = > HTTP 504-The server was acting as a gateway or proxy and did notreceive a timely response from the upstream server. More: some common HTTP status codes are: 200-the server successfully returned the web page 404-the requested web page does not exist-the service cannot use the common HTTP status code Daquan 1xx (temporary response) to indicate a temporary response and requires the requestor to continue with the operation. The code indicates that the http status code 100 (continue) requestor should continue to make the request. The server returns this code indicating that the first part of the request has been received and is waiting for the rest. The http status code 101 (handover protocol) requestor has asked the server to switch the protocol, and the server has confirmed and is ready to switch. 2xx indicates the status code that successfully processed the request. The code indicates that the http status code 200 (successful) server has successfully processed the request. Typically, this means that the server provides the requested web page. The http status code 201 (created) request succeeded and the server created a new resource. Http status code 202 (accepted) the server has accepted the request, but has not yet processed it. The http status code 203 (unauthorized information) server has successfully processed the request, but the information returned may have come from another source. The http status code 204 (no content) server successfully processed the request but did not return anything. The http status code 205 (reset content) server successfully processed the request but did not return anything. The http status code 206 (partial content) server successfully processed some GET requests. 3xx (redirect) indicates that further action is needed to complete the request. Typically, these status codes are used for redirection. Code description http status code 300 (multiple options) for the request, the server can perform a variety of operations. The server can select an action based on the requestor (user agent), or provide a list of actions for the requestor to choose from. The web page requested by http status code 301 (permanent Mobility) has been permanently moved to a new location. When the server returns this response (the response to a GET or HEAD request), it automatically moves the requestor to a new location. The http status code 302 (temporary mobility) server currently responds to requests from web pages in different locations, but the requestor should continue to use the original location for future requests. Http status code 303 (see other locations) the server returns this code when the requester should use a separate GET request to retrieve the response for different locations. Http status code 304 (unmodified) the requested web page has not been modified since the last request. When the server returns this response, the web page content is not returned. Http status code 305 (use proxy) requestors can only use agents to access the requested web page. If the server returns this response, it also indicates that the requestor should use a proxy. The http status code 307 (temporary redirect) server currently responds to requests from web pages in different locations, but the requestor should continue to use the original location for future requests. 4xx (request error) these status codes indicate that the request may have gone wrong, interfering with the server's processing. The code shows that the http status code 400 (error request) the server does not understand the syntax of the request. The http status code 401 (unauthorized) request requires authentication. For web pages that need to log in, the server may return this response. The http status code 403 (forbidden) server rejected the request. Http status code 404 (not found) the server could not find the requested web page. Http status code 405 (method disabled) disables the method specified in the request. Http status code 406 (not accepted) cannot respond to the requested web page with the requested content feature. Http status code 407 (requires agent authorization) this status code is similar to 401 (unauthorized), but the specified requestor should authorize the use of the agent. Http status code 408 (request timeout) the server timed out while waiting for a request. The http status code 409 (conflict) server collided while completing the request. The server must include information about the conflict in the response. Http status code 410 (deleted) if the requested resource has been permanently deleted, the server returns this response. Http status code 411 (valid length required) the server does not accept requests without valid content length header fields. Http status code 412 (prerequisites not met) the server did not meet one of the prerequisites set by the requestor in the request. Http status code 413 (request entity is too large) the server cannot process the request because the request entity is too large for the server to handle. Http status code 414 (the requested URI is too long) the requested URI (usually the URL) is too long for the server to process. Http status code 415 (unsupported media type) the format of the request is not supported by the request page. Http status code 416 (request range does not meet requirements) if the page cannot provide the requested scope, the server returns this status code. Http status code 417 (does not meet expectations) the server does not meet the requirements of the expected request header field. 5xx (server error) these status codes indicate that an internal error occurred while the server was trying to process the request. These errors may be the fault of the server itself, not the request error. The code indicates that the http status code 500 (server internal error) the server encountered an error and was unable to complete the request. Http status code 501 (not yet implemented) the server does not have the ability to complete the request. For example, this code may be returned when the server does not recognize the request method. The http status code 502 (error gateway) server, as a gateway or proxy, received an invalid response from the upstream server. The http status code 503 (service unavailable) server is currently unavailable (due to overload or downtime maintenance). Usually, this is only a temporary state. The http status code 504 (gateway timeout) server acts as a gateway or proxy, but does not receive a request from the upstream server in time. Http status code 505 (HTTP version is not supported) the server does not support the HTTP protocol version used in the request.

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