Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you about how to understand the three-tier structure of ASP.NET. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

In asp.net, the first section is HTML, asp, aspx, etc., and the middle layer is a .dll control compiled by .vb, .cs and other files, followed by a database server.

In the three-tier structure of ASP.NET, the database layer links and operates through the middle tier, and the front end passes parameters to the middle tier and accepts the parameters of the middle tier. In general, the main concern is the data interaction between the middle tier and the front end. The middle tier can be called a component, usually a .dll file. In .NET, .dll files do not have to worry about registration, they can be copied and used.

In the design pattern, the three layers of the three-tier structure in ASP.NET are called the presentation layer, the business layer and the data layer respectively.

1. Presentation layer: provides the user interface of the application. This typically includes the use of Windows forms and asp.net pages.

two。 Business layer: the business layer implements the business functions of the application.

3. Data layer: the data layer provides access to external systems, such as databases. The main .NET technology involved in this layer is ADO.NET database access technology.

Three-tier structure is a popular design pattern in recent years, which can make the program more scalable, flexible, platform-independent and maintainable, but in comparison, the development cycle is longer and the amount of code is more. Therefore, if you want to develop a large project, you can use a three-tier structure, while for some small projects, you don't have to use a three-tier structure.

In addition, when developing the three-tier structure in ASP.NET, we must try to minimize the coupling between the layers, at least separate the different parts and not infiltrate each other.

The above is the editor for you to share how to understand the three-tier structure of ASP.NET, if you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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