我正在尝试在JFileChooser
中的文件名后面获取一个自动.png文件。
我该怎么做?
public class Capture {
public static BufferedImage getScreenShot(Component component) {
BufferedImage image = new BufferedImage(component.getWidth(), component.getHeight(), BufferedImage.TYPE_INT_RGB);
component.paint(image.getGraphics());
return image;
}
public static void getSaveSnapShot(Component component, String fileName) throws Exception {
BufferedImage img = getScreenShot(component);
JFileChooser jfc = new JFileChooser();
jfc.addChoosableFileFilter(new FileNameExtensionFilter("Image files",new String[] { "png" }));
int retVal = jfc.showSaveDialog(null);
if(retVal==JFileChooser.APPROVE_OPTION) {
File f = jfc.getSelectedFile();
String test = f.getAbsolutePath();
ImageIO.write(img,"png",new File(test));
}
}
}
最佳答案
只需检查路径是否以png结尾。如果没有添加:
...
String test = f.getAbsolutePath();
if (!test.endsWith(".png")) {
test = test + ".png";
}
...