public void OnSaveJPG() {
Rectangle rect = getBounds();
BufferedImage image =
(BufferedImage)createImage(rect.width, rect.height);
Graphics g = image.getGraphics();
paint(g);
g.dispose();
try {
FileOutputStream fileStream =
new FileOutputStream("E://Test.jpg");
JPEGImageEncoder encoder =
JPEGCodec.createJPEGEncoder(fileStream);
encoder.encode(image);
fileStream.close();
} catch (Exception e) {
System.out.println("Error saving JPEG file!");
}
}
Rectangle rect = getBounds();
BufferedImage image =
(BufferedImage)createImage(rect.width, rect.height);
Graphics g = image.getGraphics();
paint(g);
g.dispose();
try {
FileOutputStream fileStream =
new FileOutputStream("E://Test.jpg");
JPEGImageEncoder encoder =
JPEGCodec.createJPEGEncoder(fileStream);
encoder.encode(image);
fileStream.close();
} catch (Exception e) {
System.out.println("Error saving JPEG file!");
}
}
这段Java代码实现了保存JPG文件的功能。通过创建BufferedImage对象,获取图形上下文进行绘制,然后使用JPEGImageEncoder将图像编码并保存到指定文件。若保存过程中出现异常,会输出错误信息。
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