計算機(jī)類外文翻譯---asp的網(wǎng)站新聞管理系統(tǒng)的設(shè)計與實現(xiàn)-文庫吧
2025-04-16 17:07 本頁面
【正文】 realtime application updates. Administrators do not have to turn off the work server or even do not have to stop running the application can update the application on file. Application documents will never be locked, so even when the program runs in the paper can be overwritten. When the document is updated, the system will convert to the new moderate version. 4. ASP take the codebehind approach to the preparation of the code makes the code easier to prepare, structure more clearly, reducing the system development and maintenance of the plexity and the cost of. 1 System Development Principle The System Architecture Model of ASPbased Technology ASP is a threetier system structure: UI Layer, Business Logic Tier and data layer. UI layer is responsible for interaction with the user, receiving user input and serverside data from present to clients. Business Logic Tier is responsible for receiving requests from browser requests to the data layers and at the same time the results of the request sent to the browser. It consists of Web Forms, XML Web services and service position ponents. Web Forms which is the core of the application, it is presented to customers based on data and information as well as to respond to and deal with customers and display interactive Web form generated based on information and data. Data layers to manipulate data through the layer for business logic to provide data services, such as storing the results of data manipulation and return to the results of data retrieval. The principle of access to the database Connected with the database, provide the following three kinds of ways: through ODBC connected。 connected through OLEDB。 directly connected with the SQL Server. Application of three kinds of ways as a result of differences in levels, making the efficiency from low to high, high to low independence. Connected to the database for data processing, there are two kinds of ways, that is, through a Dataset to the isolation of heterogeneous data sources, and the other is a stream to read from the data source (Data Reader mode). Traditional application is to create a connection to the database, in the process is running the whole way to maintain connections to the design. taken disconnected mode data structure. When a browser requests a page to the Web server, the server to deal with this request, the requested page and send to your browser, and then connection was disconnected
畢業(yè)設(shè)計相關(guān)推薦
鄂ICP備17016276號-1