distinguish between the types of data, in fact, a lot of simple, and HTTP status codes is used to pass HTTP processing state, if you use this way to pass the custom processing state, so that HTTP Content can be very simple to pass data, so that the data format is not limited to JSON, can also use other formats (text, XML, HTML), and XMLHttpRequest itself has the
scope, the server returns this status code. 417 (unmet expectations) the server does not meet the requirements for the expected Request header field. 5** Start (server error) These status codes indicate that the server has an internal error while trying to process the request. These errors may be the error of the server itself, not the request. 500 (server internal error) the server encountered an error and could not complete the request.501 (not yet
request method.
502
(Error gateway) The server receives an invalid response from the upstream server as a gateway or proxy.
503
(Service Unavailable) the server is not currently available (due to overloading or downtime maintenance). Typically, this is only a temporary state.
504
(Gateway Timeout) The server acts as a gateway or proxy, but does not receive requests from the upstream server in a
cannot provide the requested scope, the server returns this status code. 417 (unmet expectations) the server does not meet the requirements of the expected Request header field. 5 Start (server error) These status codes indicate that the server has an internal error while trying to process the request. These errors may be the error of the server itself, not the request.500 (server internal error) the server encountered an error and could not comple
Some of the common status codes are: $-Server successfully returned to Web page404-The requested page does not exist503-Service Not availableAll State explanations:1XX (Temporary response)A status code that represents a temporary response and requires the requestor to continue the operation.Code description100 (continued) The requesting person shall continue to make the request. The server returns this code
long for the server to process.415 (Unsupported media type) The requested format is not supported by the requested page.416 (The request scope does not meet the requirements) if the page cannot provide the requested scope, the server returns this status code.417 (unmet expectations) the server does not meet the requirements for the expected Request header field.5XX (server error)These status codes indicate that the server has an internal error while
) The requested format is not supported by the requested page.416 (The request scope does not meet the requirements) if the page cannot provide the requested scope, the server returns this status code.417 (unmet expectations) the server does not meet the requirements for the expected Request header field.5XX (server error)These status codes indicate that the server has an internal error while trying to process the request. These errors may be the erro
requested format is not supported by the requested page.416 (The request scope does not meet the requirements) if the page cannot provide the requested scope, the server returns this status code.417 (unmet expectations) the server does not meet the requirements for the expected Request header field.5XX (server error)These status codes indicate that the server has an internal error while trying to process the request. These errors may be the error of
for the server to process. The requested format for HTTP Status 415 (Unsupported media type) is not supported by the requested page. HTTP Status 416 (Request scope not compliant)-if the page cannot provide the requested scope, the server returns this status code. The server does not meet the requirements for the "expected" Request header field in HTTP Status 417 (unmet expectations).Description HTTP status 5xx (server error) These status codes indica
to describe the state of a process:D uninterruptible sleep (usually IO)R Running or runnable (on run queue)S interruptible Sleep (waiting for a event to complete)T stopped, either by a job control signal or because it's being tracedW Paging (not valid since the 2.6.xx kernel)X dead (should never be seen)Z Defunct ("zombie") process, terminated but not reaped by its parentfor BSD formats and when the STAT keyword are used, additional characters may be
When we visit a webpage, the browser sends a request to the Web page's owning server. Before the browser receives the server response information and displays the Web page, the server sends a header with an HTTP status code in response to the client request.
Common HTTP Status codes:
404: The requested resource or webpage does not exist
$: Request succeeded
301: The resource (or Web page) is permanently moved to a different URL (302 indi
invalidHTTP 403.17-Forbidden: Client certificate has expired or is not yet validHTTP 404.1-Unable to find Web siteHTTP 404-File not foundHTTP 405-Resource is forbiddenHTTP 406-UnacceptableHTTP 407-Proxy Authentication RequiredHTTP 410-Never availableHTTP 412-Prerequisite failureHTTP 414-Request-URI too longHTTP 500-Internal server errorHTTP 500.100-Internal Server error-ASP errorHTTP 500-11 Server shutdownHTTP 500-12 Application RestartHTTP 500-13-Server Too busyHTTP 500-14-Application not vali
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