How to set JAVA environment variable in VS Code

I have a spring-boot project and my IDE is VS Code. I want to pass an environment variable to my applications. Right now I set it before the Gradle command:

export PROJECT_NAME=test

./gradlew bootrun

PROJECT_NAME is my env variable; I access this in application.properties.

What is the recommended approach to set environment variables in VS Code for Java?

To set an environment variable for the Spring Boot application in VSCode, the recommended way is to create a launch.json file in the .vscode folder of your project, then add the env section like the example below:

{
  "configurations": [
    {
      "type": "java",
      "name": "Spring Boot-DemoApplication<demo>",
      "request": "launch",
      "cwd": "${workspaceFolder}",
      "console": "internalConsole",
      "mainClass": "com.example.demo.DemoApplication",
      "projectName": "demo",
      "args": "",
      "env": {
        "PROJECT_NAME": "FOO_PROJECT"
      }
    }
  ]
}