what is javaweb development

Java: Simply put, Java is a language, a language for communicating with computers.

Web: web (World Wide Web) is a global wide area network. It is a distributed graphical information system. To put it simply, it is a website on the browser.

Java Web: It is the sum of technologies that use Java technology to solve related web and Internet fields.

Learning JavaWeb development is to learn to use Java and other related technologies to develop web applications with different functions on the browser. All functions boil down to one sentence: processing data.

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Now let’s make the simplest web application: use a browser to display Hello World! .

Let’s first look at what a browser is: A browser refers to a software that can display the content of HTML files (an application of Standard Universal Markup Language) on a web server or file system, and allows users to interact with these files. .

We can see that the browser can recognize html files. Let's create a new html file.

1. Right-click to create a new text document

2. Rename and change the file extension to html

3. Open the file with text, write hello world on the first line and save it

4. Then open it with a browser. ok, hello world is displayed in the browser.

This can be considered a simple web application. The function of this application is to display the English words hello world.

Of course, no real-life website is that simple. The page will not be so monotonous.

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