[HTTP] Understand 2xx HTTP Status Code Responses

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The 2xx family of status codes are used in HTTP responses to indicate success. Beyond the generic 200 OK status code, there are a set of more specific success status codes that provide additional context or details about the specific nature of the successful request/response. We will explore the available success status codes, and what additional information they convey.

Difference between 201 and 202:

Both for post request, difference is 201 means successfully create new data on the server, it will return ‘Location‘ prop in the header.

For 202, "Accepted", mean the request was accepted, but the data is not immedicatly available, there is no location prop:

206: Partial content, it is useful when we want to continue downloading the file , it tells how many bytes has been downloaded, and the total number of bytes:

[HTTP] Understand 2xx HTTP Status Code Responses

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原文地址：http://www.cnblogs.com/Answer1215/p/6908715.html