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HomeWeb Front-endHTML TutorialAnalysis of the role of HTTP status code 100: understand its meaning

Analysis of the role of HTTP status code 100: understand its meaning

Parsing HTTP status code 100: What does it do?

HTTP (Hypertext Transfer Protocol) is a protocol used for data transmission on the Internet. During HTTP communication, some important information is transmitted between the server and the client through different status codes. Among them, HTTP status code 100 is a relatively special status code. Its function is to help the client understand whether the server is ready to receive data when the client sends a request to the server.

HTTP status code is a three-digit number. Status codes starting with 1 represent informational status codes. They tell the client some intermediate status information. Among these status codes, status code 100 is the most common one.

The specific meaning of HTTP status code 100 is "Continue". When the client sends a request to the server, if the server receives this status code, it means that the server can receive the data, and the client can continue to send the remaining data. Request section. The main function of this status code is to optimize the network transmission process and reduce unnecessary waiting time.

When the client initiates a request, it usually sets the Expect field in the request header (Request Header) to "Continue" to tell the server that it expects to receive a response with a 100 status code. If the server confirms that it can receive the request normally, it will return a 100 response code to tell the client that it can continue to send requests.

The purpose of this mechanism is to prevent the client from sending a large amount of data but the server cannot handle the data. This problem can be effectively avoided by confirming the server's readiness status before sending the request. When the client receives the response with the 100 status code, it can continue to send the remaining requests and wait for the server's processing results.

It should be noted that HTTP status code 100 is not necessary. In most cases, communication between client and server occurs directly without additional acknowledgments and waits. Only in some special scenarios, such as when the client needs to send a large amount of data to the server, this status code will be used for optimization.

To summarize, the role of HTTP status code 100 is to inform the client that the server is ready to receive the request and continue to transmit data. Through this status code, unnecessary waiting time can be reduced and the efficiency of network transmission can be improved. When the client receives the 100 status code, it can continue to send the request and wait for the server's processing results. Although this is a relatively special status code, it can play an important role in certain situations where network transmission needs to be optimized.

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