Basic Principles of Dynamic Webpage Technology_Chang ping China focuses on high quality website construction

Dynamic web page technology is to use a database to store the changed data information, and establish a connection between the Web server and the database by CGI and other methods, so that the Web server can realize the dynamic of the database Beijing website construction And return the data results to the browser for display. As a result, the dynamic web page presents a three-level structure as shown in Figure 5-18.

Three level structure of dynamic webpage

The combination of Web technology and database technology has completely changed the traditional way of accessing database with special client program. It integrates browser, server and database technology, enabling people to access different databases through a unified browser. After establishing a connection between the web page and the database, you can not only access the field information, but also change its display appearance. More importantly, it can realize dynamic access to the database. This three-tier structure of "client browser Web server database server" has obvious advantages over the two-tier structure of "client program database" in terms of cross platform and network interconnection. Compared with the traditional way, the advantages of accessing the database through the Web are:

(1) Borrow existing browser software without developing database front-end. If the database can be accessed through the Web, people do not need to develop client programs. The database applications used can be realized through the browser, and the interface is unified. It also reduces the cost and makes it easy for users to access database information.

(2) Unified standards and simple development process. With the HTML standard, developers can master only one language of HTML, and users can learn only one way to use an interface - the browser interface.

(3) Cross platform support. There are ready-made browsers available on almost all kinds of operating systems. HTML documents written for a Web server can be viewed by browsers on all platforms, realizing cross platform operation.

(4) Function expansion. The combination of database technology and Web server has greatly expanded the original functions and application scope.

As for the Web server, its functions have been significantly enhanced in the following aspects due to the integration of database technology:

(1) Powerful back-end text search engine for complex queries.

(2) The representation and organization of the logical relationship (usually retaliatory) between many information bodies.

(3) Realize optimized search in large-scale information system.

(4) Generate the latest HTML document in real time.

The database linked to the Web server is enhanced in the following aspects:

(1) It has the ability to share more extensive data and maximize the benefits of information dissemination.

(2) Have the ability to add new data in remote cooperation.

(3) Access the remote database server through a transparent browser.

(4) The unified Web interface supports data retrieval in the form of hypertext.

(5) An integrated multimedia information system.
This article was published on SEO website optimization Company Shangpin China //ihucc.com/

Basic Principles of Dynamic Web Technology

Date：2013-08-27 Source: Shangpin China Type: website encyclopedia
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