You can use java.utils to create a folder inside the resource directory

new File("/path/directory").mkdirs();

"directory" is the name for the folder you want to create

File file = new File("C:\\Directory1");
        if (!file.exists()) {
            if (file.mkdir()) {
                System.out.println("Directory is created!");
            } else {
                System.out.println("Failed to create directory!");
            }
        }

Above code will make directory for you. Append you id in Path will make directory with your " id ".

Please just run mvn spring-boot:run (use mvnw if maven is not installed or not on path. Spring boot project contains mvnw executable) in the project root without the directory specifier.

./ could be used for unix like systems but not windows.

• Step1: make you StorageProperties a Component
• Step2: autowire that component in your StartUpComponent
• Step3: create your folder

@Component
@ConfigurationProperties(prefix = "upload")
public class StorageProperties {

  private String path;

  // getters and setters
}

@Component
public class StartupComponent implements CommandLineRunner {
   private final StorageProperties storageProps;

   public StartupComponent (StorageProperties storageProps){
     this.storageProps = storageProps;
   }

  @Override
  public void run(String... args) throws Exception {
     String path = storageProps.getPath();
     // do your stuff here
  }
}

One solution, would be to check if the directory exists:

@Bean
File filesystemRoot() {
  File tmpDir = new File("tmp/photo_video_myram");
  if (!tmpDir.isDirectory()) {
    try {
      return Files.createDirectory(tmpDir.toPath()).toFile();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
  return tmpDir;
}