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This article mainly introduces the types of dynamic web page collection technology in the Internet, which has a certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let's take a look at it.

The types of dynamic web page collection technology include CGI, PHP, JSP and ASP. CGI is a technology used to build dynamic web pages; PHP is a server-side embedded HTML scripting language; JSP is used to create dynamic web pages that can support cross-platform and cross-Web servers; ASP is a technology provided by Microsoft to develop dynamic web pages.

The operating environment of this tutorial: windows10 system, Dell G3 computer.

Five commonly used dynamic web page technologies

1 、 CGI

CGI (Common Gateway Interface, Common Gateway Interface) is an early technology used to build dynamic web pages. When the client sends a request to the CGI program specified on the Web server, the Web server will start a new process to execute some CGI programs, and then send the results back to the client in the form of a web page.

The advantage of CGI is that it can be written in many languages, such as C, C++, VB and Perl. There is great flexibility in the choice of language. The most commonly used CGI development language is Perl.

The main disadvantage of CGI is that its maintenance is complex and its operation efficiency is low. This is mainly caused by the following methods:

The CGI program runs as a separate process, and when multiple users want to establish a connection with the server, the server needs to create a CGI program process for each user response.

CGI programs are not resident in memory, so frequent access to CGI programs will result in a large number of disk Icano operations.

It is complicated to write a program to access the database.

2 、 PHP

PHP (Personal Home Pages) is a server-side embedded HTML scripting language that can run on multiple platforms. It draws lessons from the grammar of C language, Java language and Perl language, and has its own unique grammar.

Because PHP adopts Open Source mode, its source code is open, which makes it possible to have new things to join and form a huge function library to achieve more functions. PHP supports almost all of today's databases.

The disadvantage of PHP is that it does not support components like JSP and ASP, and its scalability is poor.

3 、 JSP

JSP (Java Server Pages) is a Java-based technology used to create dynamic web pages that support cross-platform and cross-Web servers. JSP is different from the server-side scripting language JavaScript. JSP is to add Java program fragments and JSP tags to traditional static pages to form JSP pages, which are then compiled and executed by the server.

The main advantages of JSP are as follows:

JSP supports most platforms, including Linux systems, and Apache servers also provide services for JSP, so that JSP can run across platforms.

JSP supports component technology, and you can use JavaBeans to develop targeted components and then add them to JSP to increase their functionality.

As part of the Java development platform, JSP has all the advantages of Java, including "write once, run everywhere".

The main disadvantage of JSP is that it is complicated to write JSP programs, and developers often need to know more about Java and its related technologies.

4 、 ASP

ASP (Active Server Pages) is a technology provided by Microsoft to develop dynamic web pages, which has the advantages of simple development and powerful functions. ASP makes it very easy to generate Web dynamic content and construct powerful Web applications. For example, when you want to collect data from a form, you only need to embed some simple instructions in a HTML file, and you can collect data from the form and analyze it. With ASP, you can also easily use ActiveX components to perform complex tasks, such as connecting to a database to retrieve and store information.

For experienced program developers, if you have mastered a scripting language, such as VBScript, JavaScript, or Perl, and have learned how to use ASP. Any scripting language can be used in ASP pages as long as the corresponding engine that conforms to the ActiveX scripting standard is installed. ASP itself comes with two scripts: VBScript and JavaScript. From the technical point of view of software, ASP has the following characteristics:

There is no need to compile the ASP script and embed it into the HTML, and it can be interpreted and executed without compilation or link.

It is easy to generate and use a regular text editor (such as notepad under Windows) to design ASP pages.

Browser-independent clients can browse the home page designed by ASP as long as they use a browser that interprets regular HTML code. The ASP script is executed on the server side of the site, and the browser on the client side does not need to support it. Therefore, you do not need to download the ASP page from the server.

Object-oriented can easily refer to system components and built-in components of ASP in ASP scripts, and can also extend functions by customizing ActiveX server components.

Compatible with any ActiveX scripting language, in addition to using VBScript and JavaScript for design, you can also use other scripting languages provided by third parties through Plug-in.

The source code will not leak the ASP script to be executed on the server, and only the regular HTML code generated by the ASP execution result will be transmitted to the user's browser, which ensures that the written program code will not be leaked.

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