JavaFX resource handling: Load HTML files in WebView

by

You get this exception because your url variable is null on this line:

String url = WebViewSample.class.getResource("/map.html").toExternalForm();

You have several options with getResource():

If the resource is the same directory as the class, then you can use

String url = WebViewSample.class.getResource("map.html").toExternalForm();

Using beginning slash(“https://stackoverflow.com/”) means relative path to the project root.:

In your particular case, if the resource is stored in the webviewsample package, you can get the resource as:

String url = WebViewSample.class.getResource("/webviewsample/map.html").toExternalForm();

Using a beginning dot-slash(“./”) means relative path to path of the class:

Imagine that you rclass is stored in package webviewsample, and your resource (map.html) is stored in a subdirectory res. You can use this command to get the URL:

String url = WebViewSample.class.getResource("./res/map.html").toExternalForm();

Based on this, if your resource is in the same directory with your class, then:

String url = WebViewSample.class.getResource("map.html").toExternalForm();

and

String url = WebViewSample.class.getResource("./map.html").toExternalForm();

are equivalent.

For further reading you can check the documentation of getResource().

More Related Contents:

  1. How to reference javafx fxml files in resource folder?
  2. Html/Javascript debugging in JavaFX WebView
  3. JAVAFX / WebView / WebEngine FireBugLite or Some other debugger?
  4. Integrating JavaFX 2.0 WebView into a Swing Java SE 6 Application
  5. Performance of WebView in JavaFX
  6. Android, getting resource ID from string?
  7. Using threads to make database requests
  8. Get a resource using getResource()
  9. javafx automatic resizing and button padding
  10. Add image to JAR Java
  11. Error: JavaFX runtime components are missing, and are required to run this application with JDK 11 [duplicate]
  12. Performance of JavaFx Gui vs Swing
  13. Java: setCellValuefactory; Lambda vs. PropertyValueFactory; advantages/disadvantages
  14. How to emit and handle custom events?
  15. JavaFX on Linux is showing a “Graphics Device initialization failed for : es2, sw”
  16. Get resource from jar
  17. Embedding resources (images, sound bits, etc) into a Java project then use those resources
  18. How to force a double input in a TextField in JavaFX?
  19. Serialize JavaFX components
  20. How to right align a button in Java FX toolbar
  21. Why my JavaFX TableView is empty
  22. JavaFx – Updating GUI
  23. Draw Cartesian Plane Graph with canvas in JavaFX
  24. How to draw a crisp, opaque hairline in JavaFX 2.2?
  25. App hangs up or “Not on FX application thread” occurs during app activity
  26. JavaFx Ensemble on Raspberry pi
  27. JavaFX – Why does adding a node to a pane multiple times or to different panes result in an error?
  28. JavaFX FileChooser Throws Error (probably easy fix, but still confused)
  29. How to solve the “Graphics Device initialization failed for : d3d, sw” Problem
  30. JavaFX – setOnAction not applicable

Leave a Comment