Java web series article directory
The use of the idea iu 2021 version of the first chapter of front-end learning introduction
Table of contents
foreword
With the front-end learning path, it is inevitable to learn and use the java web project. However, the configuration of the java web project will confuse many people, especially the use of the new version of idea iu. For example, the interface of the old and new versions is very different. For humans, it is not as smooth as the old version.
1. What is the Java web?
It is a technology that uses Java technology to solve related web and Internet fields, mainly to realize the interaction between the client and the server.
2. Configuration steps
1. Download the Tomcat server
The download link is as follows: Tomcat
selection:
Note: A new API added to Tomcat in a higher version may cause incompatibility, depending on the situation.
(2) Generally, the downloaded tomcat is moved to the resource library of the Mac system,
(3) The terminal starts tomcat
2.idea iu 2021 version interface
(2) Create a project:
Select the java module, click Next, and the interface as shown in the figure will pop up: Click to select the template
(3) Then: 
(4) The project is created successfully, and then add the required framework as shown in the figure: includeSpringandweb
(5) After entering, select the required framework: you can download the web package first. It is recommended to load the servlet.api.jar package under Tomcat before adding the spring package. Note that the loading and downloading of the spring package is very slow, as shown in the figure: the download is successful 
:
(6) Load the servlet.api.jar package under Tomcat, which is generally located in the lib directory of the tomcat package, copy and add it, as shown in the figure: ( 
7) Download the spring package 
Note: Generally, when the download fails:
place it as shown in the figure Fix: Click on
the project structure of the file in this interface to appear.
Click to fix: pop-up: Only when the loading is successful can the library be downloaded successfully.
(8) Add configuration tomcat, select local, configure tomcat: I have configured it before, and it will be automatically completed. My port is changed to 8089, and the default is 8080.
Note: Tomcat can only be used when other software does not occupy port 8080.
(9) Fix the instructions as shown in the picture.
(10) The configuration is complete.
Summarize
There is not much difference between the mac version of iu and the windows version.