Скачать или смотреть How to Get the Current Logged User ID and Username in JavaFX

Learn how to retrieve the current logged user's ID and username in your JavaFX application. This guide offers clear solutions and code examples for better user experience.
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This video is based on the question https://stackoverflow.com/q/58000684/ asked by the user 'Randika Madushan' ( https://stackoverflow.com/u/10508584/ ) and on the answer https://stackoverflow.com/a/66296079/ provided by the user 'ADSquared' ( https://stackoverflow.com/u/12012015/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Get the Current Logged User ID and Username in JavaFX: A Step-by-Step Guide

Creating a JavaFX application that requires user login can be quite an engaging task. One common challenge developers face is how to retain and display the logged user’s information, such as their ID and username, on the home page after a successful login. In this guide, we’ll break down the steps to accomplish this effectively.

The Problem

If you want to keep track of the logged-in user's data and display it on the application's home page, you're in the right place. This task involves passing user data between different scenes within your JavaFX application. Not only do we want our user to log in successfully, but we also want to show their username on the main window that they see after logging in.

The Solution

To effectively handle the user data, we will use Object-Oriented Programming (OOP) principles. This will allow us to create a user object that contains the relevant information we want to store and retrieve. Here’s a step-by-step breakdown of how to implement this in your JavaFX application.

Step 1: Create a User Class

First, we need to create a User class that will manage the user’s properties. Here is a simple implementation:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Handle User Login

In the login controller, you will perform user validation when the user logs in. If the validation is successful, you will create an instance of the User class. Here's what this might look like:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Initialize the Main Window

You need a method in your main window controller to initialize the user data. This method will receive the User object and display the username on the main window. Here’s how to set it up:

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Transition Between Scenes

Now, you will have to implement the scene transition while passing the user object. This can be done as follows:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

To sum up, getting the current logged user’s ID and username in a JavaFX application involves creating a user class, validating the user at login, and passing that user data as you navigate to different scenes. Using this approach not only keeps your data structured but also enhances the user experience by providing a seamless transition and access to user information.

With the above steps and code examples, you should now be able to effectively display the current logged user’s details on your JavaFX application’s home page!

If you have any questions about this process or need further assistance, feel free to ask!