JavaFx在场景打开时设置标签文本

Question

I have an FXML file with an empty Label named welcomeText . It's the main Scene of my program and I would like to set the label text to something like that: Hello "username" when I start the program on Windows or Linux.

public class MainAdminController implements Initializable {

@FXML
private Label welcomeText;
final String username = System.getProperty("user.name");

@FXML
private void SetWelcome() {
welcomeText.setText("Hello " +username);
 }
}

But it isn't show anything. Any idea how can I set the Label properly when I open the scene? Thanks.

Answer 1

The SetWelcome method is superfluous.

Define an initialize() method for your controller and it will automatically be invoked when the FXMLLoader loads a new document linked to the controller.

public void initialize() {
    welcomeText.setText("Hello " +username);
}