Creating a new simple web application (jsp web page)

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Creating a new simple web application (jsp web page) | Java, Maven

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обновлено: 10 April 2025

Here's my jsp page:

File index.jsp

<html>
<body>
<h2>Hello World!</h2>
</body>
</html>

Start the project and open the link:
http://localhost:8080/MyWeb1
We see that our web page is working on the way

Download an example:

MyWeb1.zip ...
size: 40 kb

Note! You must have Java JDK installed. If you don't have it, then need to download and install Java JDK ...

Note! You must have IntelliJ IDEA Ultimate installed. If you don't have it, then need to download and install IntelliJ IDEA Ultimate ...

Note! You must have Tomcat Web Server installed. If you don't have it, then need to download and install Tomcat Web Server ...

Step 1. Creating a new project

Select the project: Maven Archtype
Choose the type: webapp

The project was created:
jsp A file is a web page.

Let's try to run the project:

Click on the green triangle

The Edit configuration window with the default configuration appeared.
At the bottom, we see an error Error: Module is not selected

Step 2. To launch this web project well, you need to add a web server (add the Smart Tomcat plugin, this is a lightweight web server)

Click on Edit Configurations

Click on +
click on Smart Tomcat
Note! If there is no Smart Tomcat in the list, then You need to install Smart Tomcat plugin in Intellij Idea ...

A window appeared with the configuration for Smart Tomcat
I don't change anything, click on OK

Step 3. Launching the project

Click on the green triangle

The application starts and sees the command in Console:

C:\Users\echig\.jdks\openjdk-22.0.1\bin\java.exe "-Dcatalina.home=C:\Program Files\Apache Software Foundation\Tomcat 9.0"
-Dcatalina.base=C:\Users\echig\.SmartTomcat\MyWeb1\MyWeb1
-Djava.io.tmpdir=C:\Users\echig\.SmartTomcat\MyWeb1\MyWeb1\temp
-Djava.util.logging.config.file=C:\Users\echig\.SmartTomcat\MyWeb1\MyWeb1\conf\logging.properties
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2024.3\lib\idea_rt.jar=55900:C:\Program Files\JetBrains\IntelliJ IDEA 2024.3\bin"
-Dfile.encoding=UTF-8
-Dsun.stdout.encoding=UTF-8
-Dsun.stderr.encoding=UTF-8
-classpath "C:\Program Files\Apache Software Foundation\Tomcat 9.0\bin\bootstrap.jar;C:\Program Files\Apache Software Foundation\Tomcat 9.0\bin\tomcat-juli.jar"
org.apache.catalina.startup.Bootstrap start

This means that the web server will be terminated Tomcat

Click on the link:
http://localhost:8080/MyWeb1

We see that our web page has been launched on a web server:

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Create a web servlet (the servlet is located on the web server, returns the result on request) | Java

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