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Editor to share with you what is the widespread use of www mode on internet. I hope you will gain a lot after reading this article. Let's discuss it together.

Www, which is widely used on internet, is a browser / server mode. This mode unifies the client, centralizes the core part of the system function on the server, and simplifies the development, maintenance and use of the system.

Bounce S structure (Browser/Server, browser / server mode) is a network structure mode after the rise of WEB. WEB browser is the most important application software on the client side. This mode unifies the client, centralizes the core part of the system function on the server, and simplifies the development, maintenance and use of the system. Only one browser, such as Netscape Navigator or Internet Explorer, is installed on the client, and SQL Server, Oracle, MYSQL and other databases are installed on the server. The browser interacts with the database through Web Server.

Architecture

With the popularity of Internet and WWW, the previous host / terminal and C / S can not meet the new requirements of global network openness, interconnection, information everywhere and information sharing, so the B / S mode, that is, browser / server structure, appears. It is an improvement of the Cpact S architecture, and it can be said that it belongs to the three-tier CAccord S architecture. It mainly makes use of the mature WWW browser technology, uses the general browser to realize the powerful function that originally needs complex special software to achieve, and saves the development cost, so it is a brand-new software system construction technology.

The first layer is the browser, that is, the client, which has only simple input and output functions and handles a very small part of the transaction logic. As customers do not need to install the client, as long as there is a browser to browse the Internet, so it is for a wide range of users, so the interface design is relatively simple and universal.

The second layer is the WEB server, which plays the role of information transmission. When users want to access the database, they will first send a request to the WEB server. After the WEB server unifies the request, it will send a request to the database server to access the database. This request is realized by SQL statement.

The third layer is the database server, which plays an important role because it stores a large amount of data.

working principle

Bounce S architecture adopts the working mode of browser request and server response.

Users can access the text, data, pictures, animation, video on demand, sound and other information generated by the Web server on Internet through the browser.

And each Web server can connect with the database server in various ways, and a large amount of data is actually stored in the database server.

Download the program from the Web server to execute locally. If you encounter instructions related to the database in the process of downloading, the Web server will give it to the database server for interpretation and execution, and return it to the Web server, and the Web server will return to the user. In this structure, many networks are connected together to form a huge network, that is, the global network. Each enterprise can establish its own Internet on the basis of this structure.

Through the framework and the browser embedded in the operating system, the structure has become the mainstream structure pattern of today's software applications.

After reading this article, I believe you have a certain understanding of the widespread use of www mode on internet. If you want to know more about it, welcome to follow the industry information channel. Thank you for your reading!

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