What is HTTP ? What is HTTP?

The full name of HTTP is Hypertext Transfer Protocol Chinese which is the most widely used network protocol on the Internet.

An HTTP operation is called a transaction, and its working process can be divided into four steps:

1. First of all, the client needs to establish a connection with the server. As soon as you click on a certain hyperlink, the work of HTTP begins.

2. After the connection is established, the client sends a request to the server in the format of the request method: Uniform Resource Identifier (URL), protocol version number, followed by MIME information including request modifier, client information and possible content.

3. After receiving the request, the server will give the corresponding response information, which is in the form of a status line, including the protocol version number of the information, a success or error, followed by MIME information, including server information, entity information and possible content.

4. The client receives the information returned by the server and displays it on the user's display screen through the browser, and then the client disconnects from the server.

HTTP is the abbreviation of Hypertext Transfer Protocol, which is a protocol commonly used on the Internet to transmit hypertext between web browsers and web servers.

It is a protocol for a client, such as a web browser, to request HTML pages or other data from a server, while also specifying how the server responds to the request and sends the required data.

Expansion:

HTTP uses a client-server model for communication. When a client (browser) needs to request a resource, it sends an HTTP request to the server, and the server responds to the corresponding data after receiving the request.

HTTP is essentially a stateless protocol, which means that each HTTP request is independent and stateless, and the server does not remember the requests made by the client, nor does it save any client information. Therefore, each HTTP request is independent of each other and will not affect each other.

Common HTTP request methods include get, post, put, delete, and head. The GET method is used to request the specified resource, the POST method is used to submit data to the specified resource, the PUT method is used to upload an entity representing the query at the specified URL location, the delete method is used to delete the specified resource, and the HEAD method is used to obtain the HTTP response header.

An important feature of the HTTP protocol is that it can process and transmit data using a variety of different types, such as HTML, XML, JSON, etc.

In general, HTTP is one of the most important and commonly used protocols on the Internet, and its emergence and use have made the development and deployment of web applications more convenient and faster, and also provided the cornerstone for the rapid development of the Internet.

A Hypertext Transfer Protocol (HYPERTEXT Transfer Protocol) is one of the most widely used network protocols on the Internet.