Shulou(Shulou.com)06/01 Report--

The editor will share with you what WebSocket means. I hope you will get something after reading this article. Let's discuss it together.

WebSocket protocol is a new network protocol based on TCP. It implements full-duplex (full-duplex) communication between the browser and the server-allowing the server to actively send information to the client. The WebSocket communication protocol was defined as the standard RFC 6455 by IETF in 2011 and supplemented by RFC7936. To put it simply, before the WebSocket protocol, duplex communication was achieved through multiple http links, which led to inefficiency. WebSocket solves this problem.

Suppose we need a webserver in an embedded project, which can be implemented with websocket. For example, there is an example of webserver in version 2.2 of SDK of NXP, which is accompanied by an implementation of websocket.

The corresponding underlying code of embedded K64 also has

You can click on the connect connection to test the websocket, and you can see that the response speed is still very good. You can modify the page to achieve more of your own functions and add more functions according to the needs of the project.

In the process of implementing a websocket connection, you need to issue a websocket connection request through a browser, and then the server sends a response, a process often referred to as a "handshake". In WebSocket API, the browser and the server only need to do a handshake, and then a fast channel is formed between the browser and the server. Data can be transmitted directly between the two. In the functions of embedded webserver, you can try to use this feature more often. You can see its specifications and standards https://www.w3.org/TR/websockets/ on the following website

After reading this article, I believe you have a certain understanding of "what does WebSocket mean?" if you want to know more about it, you are welcome to follow the industry information channel. Thank you for your reading!

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