Final answer:
To run a Maven project in IntelliJ IDEA, import the project using the pom.xml file, use the 'Maven Projects' tool window to execute Maven goals, or use the main class to run the application directly. You can also create custom run configurations for Maven or your application.
Step-by-step explanation:
Running a Maven Project in IntelliJ IDEA
To run a Maven project in IntelliJ IDEA, you need to follow several steps. First, make sure that IntelliJ IDEA has the Maven plugin installed and enabled. Then, you can import your Maven project into the IDE. To do this, select 'File' > 'Open' and choose your project's pom.xml file or the project's folder. IntelliJ IDEA should recognize the project as a Maven project and will set it up for you.
Once the Maven project is imported, you can use the 'Maven Projects' tool window to manage the project's lifecycle. This window lets you run various Maven goals such as compile, test, and package. To run your project, go to the 'Maven Projects' window, expand the 'Lifecycle' section, and double-click on the 'install' to build the project and install the snapshot in your local repository. If you want to run the project, find the main class, right-click on it, and select 'Run' or 'Debug' if you're going to run in the debug mode.
Alternatively, you can add a run configuration specifically for Maven. Click on 'Add Configuration' (the plus sign) at the top of the IDE, choose 'Maven', and then configure it to run the desired phase or goal. You can also create a custom run configuration for your application by specifying the main class and any program arguments or VM options as needed.