what is http status code

HTTP status code refers to a three-digit code in the response message returned by the server to the client in the HTTP protocol. It is used to indicate the server's processing result of the request. The HTTP status code is the In part, it provides a standardized way to inform clients about the processing of requests. The HTTP status code consists of three digits. The first digit indicates the type of response, and the last two digits indicate the specific response code. According to the provisions of the HTTP protocol, status codes are divided into five categories, each category has a specific meaning.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

HTTP status code refers to a three-digit code in the response message returned by the server to the client in the HTTP protocol. It is used to indicate the server's processing result of the request. HTTP status codes are part of the HTTP protocol and provide a standardized way to inform the client about the processing of a request.

HTTP status code consists of three digits. The first digit indicates the type of response, and the last two digits indicate the specific response code. According to the provisions of the HTTP protocol, status codes are divided into five categories, each category has a specific meaning.

1xx - Informational status code: Indicates that the server has received the request and is processing it.

2xx - Success status code: Indicates that the server successfully processed the request.

3xx - Redirect status code: Indicates that further action is required to complete the request.

4xx - Client error status code: Indicates that the request sent by the client has an error.

5xx - Server error status code: Indicates that an error occurred while the server was processing the request.

The following are some common HTTP status codes and their meanings:

- 200 OK: Indicates that the request was successful and the server has successfully processed the request.

- 301 Moved Permanently: Indicates that the requested resource has been permanently moved to a new URL.

- 400 Bad Request: Indicates that the request sent by the client has an error and the server cannot understand it.

- 403 Forbidden: Indicates that the server has rejected the client's request and does not have permission to access.

- 404 Not Found: Indicates that the server cannot find the requested resource.

- 500 Internal Server Error: Indicates that an internal error occurred while the server was processing the request.

HTTP status codes are very important for communication between client and server. The client can determine whether the request is successful based on the status code, and take corresponding processing measures based on different status codes. The server can provide information to the client about the result of request processing based on the status code.

In addition to the above common status codes, the HTTP protocol also defines many other status codes to represent different request processing situations. When developers write web applications, they can choose the appropriate status code to return to the client based on specific needs and business logic.

To summarize, the HTTP status code is a standardized way to indicate the server's processing results of the request. Through the status code, the client can know whether the request is successful and take corresponding processing measures according to different status codes. HTTP status codes are very important for web developers, they can help developers better handle requests and provide a better user experience.

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