java.lang.IllegalArgumentException:无效的URL或资源未找到.JavaFX图片 [英] java.lang.IllegalArgumentException: Invalid URL or resource not found. JavaFX image

问题描述

我正在使用Dropbox API V2将图像从我的Dropbox下载到我的Java程序.我将它们保存在"/src/main/Resources/Downloads/" 中，然后希望在下载后程序运行的同时获取 image.jpg .

I'm using Dropbox API V2 to download images from my Dropbox to my Java Program. I save them in "/src/main/Resources/Downloads/" and then want to get the image.jpg at the same time the program is running after downloaded.

1)程序第一次下载图像并运行该图像时，出现无效的URL或找不到资源"错误:

1) The first time the program downloads the image and run this I get "Invalid URL or resource not found" error:

Button button1 = new Button();
Image thumbnail = new Image("/Downloads/image.jpg");
button1.setGraphic(new ImageView(thumbnail));

2)第二次关闭程序并且文件已经保存在资源"中了.

2) Second time when I have closed the program and the file is already saved in Resources it works.

我想念什么?

推荐答案

找到了解决方案:

String path = "/src/main/Resources/";

File file = new File(path + i.getLocalPathThumbnail());
String localUrl = file.toURI().toURL().toString();
Image thumbnail = new Image(localUrl, false);

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