Eclipse中Scene Builder路径配置后无法打开.fxml文件求助

Let's walk through the troubleshooting steps for your issue—since you can open Scene Builder outside Eclipse, the problem is almost certainly with the integration setup rather than the app itself.

First, let's check the path configuration you're using:

• Remove unnecessary quotes: The path you provided C:\Users\"Username"\AppData\Local\SceneBuilder\SceneBuilder.exe has quotes around Username which might be throwing Eclipse off. If your Windows username doesn't have spaces, you don't need those quotes. Replace it with your actual username (e.g., C:\Users\Garrett\AppData\Local\SceneBuilder\SceneBuilder.exe) and re-apply the settings in Eclipse.
• Validate the path: Copy the corrected path into File Explorer's address bar—if it launches Scene Builder immediately, the path is valid, so we can rule out a broken file path issue.

Next, double-check Eclipse's FXML association settings:

• Go to Window > Preferences, expand JavaFX > Scene Builder, confirm the path matches the validated one, click Apply and Close, then restart Eclipse. Sometimes a restart is needed for the changes to take effect.
• Right-click any .fxml file, select Open With > Other, find Scene Builder in the list, check the box for Use this action for all .fxml files, and click OK. This forces Eclipse to use Scene Builder as the default opener for FXML files.

As for your question about the AppData installation location vs. the Oracle folder:
This shouldn't cause any issues at all. Scene Builder works fine regardless of where it's installed, as long as Eclipse can access the executable. I've helped users set it up in custom folders, AppData, and even external drives—location isn't the culprit here.

If none of the above works, try this workaround:
Launch Scene Builder manually, then use File > Open to load your FXML file. If it opens correctly, the problem is definitely with Eclipse's integration. In that case, you can try resetting Eclipse's workbench configuration:

• Close Eclipse, navigate to your workspace folder, find the .metadata directory, back it up, then delete the .plugins/org.eclipse.e4.workbench subfolder. Restart Eclipse, re-configure the Scene Builder path, and test again.

内容的提问来源于stack exchange，提问作者Garrett