Read the HTTP authoritative guide and http authoritative guide

Read the HTTP authoritative guide and http authoritative guide

During the National Day, I read an authoritative HTTP guide. Now I will give you a lecture on this section:

Web browsers, servers, and Related Web applications communicate with each other over HTTP. HTTP is a public language used in the modern global Internet. Is a brief introduction to HTTP. In this chapter, we can see how Web applications use HTTP

In this way, you can have a general impression on how HTTP completes its work. We will introduce in particular the following content: • How the Web Client communicates with the server; • Where the Web content resources come from; • How the Web transaction works; • The Message format used for HTTP Communication;
• Underlying TCP network transmission; • Different HTTP protocol variants; • part of a large number of HTTP architecture components installed on the Internet. HTTP-Internet Multimedia messenger every day, there are hundreds of millions of JPEG images, HTML pages, text files, MPEG movies, WAV

Audio files, Java applets, and other resources are on the Internet. HTTP can quickly, conveniently, and reliably move information blocks from Web servers all over the world to Web browsers on people's desktops. HTTP uses a reliable data transmission protocol, so even if the data comes from the other end of the earth, it can

Make sure that the data is not damaged or messy during transmission. In this way, users do not have to worry about its integrity when accessing information. Therefore, this is a good thing for users. This is also true for Internet application developers, because there is no need to worry about the destruction, replication, or production of HTTP Communication during transmission.
3 is distorted. Developers can focus on writing specific application details without considering some defects and problems stored on the Internet. Next, let's take a closer look at how HTTP transmits Web traffic.

If an HTTP client sends a request, it will provide data. The client sends an HTTP request to the server, and the server returns the requested data in the response. The client and the HTTP server constitute the basic components of the World Wide Web. Www.oreilly.com "Please send me the document/index.html" for the HTTP request"
HTTP Response client "okay, that is. The document is given in HTML Server format, with a length of 3150 bytes. You may use HTTP clients on Web clients and servers every day. The most common client is a Web browser, such as Microsoft Internet Explorer or Web browser.

The Web browser requests HTTP objects from the server and displays these objects on your screen. When browsing a page (such as a http://www.oreilly.com/index.html), the browser will send a request to the server that will look for the desired HTTP image for www.oreilly.com (in this example/index.html), if successful, the object, object type, object length, and other information are sent to the client in the HTTP response. A resource server is the host of a resource. Resources are the source of content. Web resource Web the simplest Web resource is the static file in the Web Server File System. These files can contain any content: text files, HTML files, Microsoft Word files, Adobe Acrobat files, JPEG image files, AVI movie files, or all other formats that you can think.
However, resources do not have to be static files. Resources can also be software programs that generate content as needed. These dynamic content resources can generate content based on your identity, requested information, or different time periods each day. They can show you living photos in the camera, or help you trade stocks and search for real estate data.
Library, or buy gift HTTP overview from the online store.