How to implement ASP.NET three-tier architecture

Implementing the ASP.NET three-tier architecture can be divided into the following steps: create a database, create an ASP.NET website in C# language, create a data access layer and configure the database connection, and then create the business logic layer and presentation layer

The three-tier architecture represents the division of the entire business into the interface layer, business logic layer and data access layer. This layered structure is very common in software architecture. Today we will introduce the implementation of the ASP.NET three-tier architecture, which has certain reference value and I hope it will be helpful to everyone.

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ASP.NET three-tier architecture from the bottom up It is divided upward into data access layer, business logic layer and presentation layer. They perform their own duties and do not interfere with each other. If the requirements of any layer change, we only need to change the code in the corresponding layer. This will not affect the code of other layers. This better realizes the division of labor and cooperation in development and is also conducive to the reuse of components. Improved development efficiency

Implementation of ASP.NET three-tier architecture

With the continuous upgrading of ASP.NET, it is now easy to use ASP.NET to build B/S three-tier architecture application. The implementation of ASP.NET three-tier architecture can be completed by the following steps

(1) Create a database

Open SQL Server 2008, create a new database "TestDb", and create it as follows The structure shown has two tables "PersonInfo" and "GradeInfo". The two tables use PersonIDNumber as the related field to store the student number

(2) Create the data access layer

Before creating the data access layer, you must first create a website and configure it Good database connection

1. Create a web project and configure the database connection

Create an ASP.net website with a programming language of C#. After creation, create a data access layer to configure the database connection

2. Create the data access layer and configure the database connection

Create the data access layer, select the database server according to the configuration wizard window, set the parameters and follow the prompts to complete step by step

( 3) Create a business logic layer

Although the data access layer separates the details of data access from the presentation layer, it cannot handle any business rules, so this requires the business logic layer to complete, they Read, insert, modify and delete methods from the respective

TableAdapter to apply appropriate business rules

(4) Create the presentation layer
After completion After the basic structure of the application, we can display it through a variety of reports. A new way is provided in the data source controls of ASP.NET 2.0. Using these controls, you can perform data binding from the created business logic layer without even writing code

Summary: The above is That’s all in this article. I hope this article can help you learn the implementation of the ASP and NET three-tier architecture.

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