Abd*_*rif 1 java javafx filechooser
我想选择一个图像FileChooser,然后将所选图像保存在 byte[] 变量中,我打开对话框
FileChooser fileChooser = new FileChooser();
fileChooser.setTitle("Open Resource File");
fileChooser.showOpenDialog(new Stage());
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现在,如何从中获取图像文件FileChooser并将其保存在 byte[] 变量中?
您可以使用Files.readAllBytes(Path path):
FileChooser fileChooser = new FileChooser();
fileChooser.getExtensionFilters().add(new FileChooser.ExtensionFilter("PNG", "*.png"));
File pngImage = fileChooser.showOpenDialog(window);
if (pngImage != null) {
try {
byte[] imageBytes = Files.readAllBytes(pngImage.toPath());
} catch (IOException e) {
System.err.println("File couldn't be read to byte[].");
}
}
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另一种选择IOUtils:
byte[] bytes = IOUtils.toByteArray(new FileInputStream(pngImage));
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