Dynamic website does not refer to the website with animation function, but refers toWebsite contentWebsites that can be dynamically changed according to different situations. Generally, dynamic websites are structured through databases.In addition to designing web pages, dynamic websites should also use databases andProgrammingTo make the website have more automatic and advanced functions.Dynamic websites are generally represented byasp，jsp，php，aspxAnd other technologies, whileStatic Web PageGenerallyHTML（Standard Universal Markup LanguageA subset of), dynamic websiteServer spaceThe configuration is more demanding than static web pages, and the cost is correspondingly high, butDynamic webpageIt is conducive to the updating of website content and suitable forEnterprise station building。Dynamic is relative toStatic websitefor.
Chinese name
Dynamic website
Foreign name
Dynamic Website
Properties
A general term for a website
Features
The website content can be dynamically changed according to different situations
Dynamic web page is not a web page file that exists independently in the server, but a web page is only fed back when the browser sends a request;
three
Dynamic web pages contain server-side scripts, so the page file names are often suffixed with asp, jsp, php, etc.But you can also useURLStatic technology, so that the page suffix is displayed as HTML.Therefore, the suffix of the page file cannot be used as the standard to judge the dynamic and static status of the website.
four
Dynamic web pages require database processing, so the access speed of dynamic web sites is greatly reduced;
five
Dynamic web pages are less friendly to search engines than static web pages because of special code.
six
However, with the improvement of computer performance and network bandwidth, the last two have been basically solved.
development language
Announce
edit
Currently, for dynamicWebsite developmentThere are four main languages of ASP: ASP, ASP.NET、PHP、JSP。
1. ASP namelyActive Server Pages(Active Server Page), which isMicrosoftA Hypertext like Markup Language（HTML）, Script, andCGI(public gateway interface), which does not provide its ownprograming language, but allows users to use many existing scripting languages to write ASPapplication program。ASP programming is more convenient and flexible than HTML.It runs on the Web server side, and then transmits the running results to the browser on the client side in HTML format.Therefore, ASP is much safer than general scripting languages.
The biggest advantage of ASP is that it can contain HTML tags, directly access the database and use theActiveX ControlTherefore, it is more convenient and flexible than HTML in programming.By using ASP components and object technology, users can directly use ActiveX controls, call object methods and properties, and achieve powerful interactive functions in a simple way.
Because it is basically limited to Microsoft's operating system platform, the main working environment is Microsoft's IIS application structure, and becauseActiveXObjects have platform characteristics, so ASP technology cannot easily work on cross platform Web servers.
2、ASP.NETASP technology, the predecessor of, was first launched on IIS2.0（Windows NT 3.51）, when compared withADO1.0 together, in IIS 3.0（Windows NT 4.0）Become popular for server-side applicationsdevelopment toolMicrosoft also specially created the VisualInterDev development tool for it. Between 1994 and 2000, ASP technology has become one of the key technologies for Microsoft to promote Windows NT 4.0 platform, and tens of thousands of ASP websites have sprung up on the network at this time.Its simplicity and highly customizable ability are also one of the reasons why it can rise rapidly.However, the shortcomings of ASP gradually emerge:Process orientedThe type of program development method makes maintenance much more difficult, especially for large ASP applications.Interpretative VBScript orJScriptLanguage, so that the performance cannot be fully played.Scalability is limited due to the lack of its infrastructure, althoughCOMComponents are available, but when developing some special functions (such as file upload), there is no built-in support, and you need to seek the control from a third-party control vendor.
3、PHPThat is, Hypertext Preprocessor, which is the most popular on the Internet todayscripting language Its syntax draws lessons from CJava、PERLYou can use PHP to build a truly interactive Web site with very little programming knowledge.
It is related toHTMLThe language is very goodcompatibilityUsers can directly add HTML tags to the script code, or add script code to the HTML tag to better realize page control.PHP provides standardDatabase interfaceConvenient database connection and strong compatibility;Strong expansibility;Can proceedobject-oriented programming。
4. JSPJavaServer Pages（Java Server Page）It is a new technology launched by Sun Microsystem in June 1999. It is a Web development technology based on Java Servlet and the entire Java (Java) system.
JSP and ASP have many similarities in technology, but they come from differenttechnical specificationsOrganizations, even ASP, are generally only applied to the Windows NT/2000 platform, while JSP can run on more than 85% of the servers, and applications based on JSP technology are easier to maintain and manage than applications based on ASP, so many people think that it is the most promising dynamic website technology in the future.
Site Template
Announce
edit
At present, for many entry-level groups, learn ASP, JSP, PHP, etcscripting language And database knowledge, relatively speaking, is a relatively difficult process.So, can we make dynamic websites without fully mastering similar knowledge?
build
Announce
edit
In the process of website construction, we usually consider carefully: website content,Web Design , the overall function of the website, of which the most important factor before the production of the website is the website content, but after the completion of the website production, the proportion of design is quite large, and the website design has also become an important factor to convey the corporate image.
Main differences
Announce
edit
difference
Whether the program is inServer sideOperation is an important sign.The programs, web pages and components running on the server are dynamic web pages. They will return different web pages with different customers and at different times, such as ASPPHP、JSP、CGIEtc.Programs, web pages, plug-ins and components running on the client are static web pages, such as html pagesFlash、JavaScript, VBScript, and so on.
Static pages and dynamic pages have their own characteristics. Whether a website adopts dynamic pages or static pages mainly depends on the functional requirements of the website andWebsite contentIf the function of the website is relatively simple and the amount of content updates is not large, it will be easier to use a purely static web page, otherwise, it will generally useDynamic web page technologyTo achieve.
Static pages areWebsite constructionThere is no contradiction between static web pages and dynamic web pages, in order to adapt to the siteSearch EnginesFor the needs of retrieval, even if the dynamic website technology is used, the content of the web page can also be converted into static web page publishing.
Dynamic websites can also adopt the principle of combining static pages with dynamic pages. Where dynamic pages are suitable, dynamic pages can be used. If it is necessary to use static pages, the method of static pages can be considered. It is common for dynamic pages and static pages to exist simultaneously on the same website.
characteristic
We briefly summarize the general characteristics of dynamic web pages as follows:
(3) In fact, dynamic web pages are not web page files that exist independently on the server. Only when users request, the server will return a complete web page;
Dynamic website
(4) "?" pair in dynamic webpageSearch EnginesThere are certain problems in retrieval. It is generally impossible for search engines to access all pages from the database of a website, or for technical reasons, search spiders do not crawl the content behind the "?" in the website, so websites using dynamic pages areSearch engine promotionSome technical processing is required to meet the requirements of search engines
What is a static web page?What are the characteristics of static web pages?
stayWebsite DesignMedium, pureHTMLThe format of the web page is usually called "static web page", and the early websites were generally composed of staticWeb page productionOf.
The URL form of static web pages is usually:
That is to sayhtm,. html,. shtml,. xml, etc. are postsuffixed.Various dynamic effects can also appear on HTML pages, such asGIF formatThese "dynamic effects" are only visual, and are different from the dynamic web pages to be introduced below.
We briefly summarize the characteristics of static web pages as follows:
(1) Static pages Each page has a fixed URL, and the page URL is suffixed with. htm,. html,. shtml and other common forms, without "?";
(2) Once the web content is published toWeb serverNo matter whether there is user access, the content of each static page is saved on the website server, that is to say, a static page is actually a file saved on the server, and each page is an independent file;
(3) The content of static web pages is relatively stable, so they are easy to be retrieved by search engines;
(4) There is no database support for static web pagesWebsite productionAnd maintenance, so when the websiteinformation contentIt is very difficult to rely solely on the static web page production mode;
(5) Static web pageInteractivityPoor, there are great limitations in terms of functions
