Java 从另一个目录读取图像
我需要从另一个目录打开一个映像,但是当我尝试输入整个路径名(如Java 从另一个目录读取图像,java,swing,Java,Swing,我需要从另一个目录打开一个映像,但是当我尝试输入整个路径名(如/Users/Documents/image.dcm)时,以下代码不起作用 我正在尝试打开一个dicom图像。我这样做是为了能为这段代码制作GUI,但我真的被卡住了。我试过很多东西,但似乎都不管用。如有任何建议,将不胜感激 /** * This class displays the first frame of a file from any format * supported by ImageIO. * In the cas
/Users/Documents/image.dcm
)时,以下代码不起作用
我正在尝试打开一个dicom
图像。我这样做是为了能为这段代码制作GUI,但我真的被卡住了。我试过很多东西,但似乎都不管用。如有任何建议,将不胜感激
/**
* This class displays the first frame of a file from any format
* supported by ImageIO.
* In the case of DICOM files, stored values are displayed as
* is, without using Value of Interest or Presentation LUTs.
*/
class Read1 {
public static void main(String[] s) {
try {
//System.out.println(s[0]);
if (s.length != 1) {
//System.err.println("Please supply an input file");
System.exit(1);
}
//URL url = Main.class.getResource(s[0]);
ImageIO.scanForPlugins();
final BufferedImage bi = ImageIO.read(new File(s[0]));
if (bi == null) {
System.err.println("read error");
System.exit(1);
}
JFrame jf = new JFrame();
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final Rectangle bounds = new Rectangle(0, 0, bi.getWidth(), bi.getHeight());
JPanel panel = new JPanel() {
public void paintComponent(Graphics g) {
Rectangle r = g.getClipBounds();
((Graphics2D) g).fill(r);
if (bounds.intersects(r))
g.drawImage(bi, 0, 0, null);
}
};
jf.getContentPane().add(panel);
panel.setPreferredSize(new Dimension(bi.getWidth(), bi.getHeight()));
jf.pack();
jf.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
}
你可以试试任何一种
// Read from same package
ImageIO.read(getClass().getResourceAsStream("c.png"));
// Read from absolute path
ImageIO.read(new File("E:/SOFTWARE/TrainPIS/res/drawable/c.png"));
// Read from images folder parallel to src in your project
ImageIO.read(new File("images/c.jpg"));
// Read from src/images folder
ImageIO.read(getClass().getResource("/images/c.png"))
// Read from src/images folder
ImageIO.read(getClass().getResourceAsStream("/images/c.png"))
你可以试试任何一种
// Read from same package
ImageIO.read(getClass().getResourceAsStream("c.png"));
// Read from absolute path
ImageIO.read(new File("E:/SOFTWARE/TrainPIS/res/drawable/c.png"));
// Read from images folder parallel to src in your project
ImageIO.read(new File("images/c.jpg"));
// Read from src/images folder
ImageIO.read(getClass().getResource("/images/c.png"))
// Read from src/images folder
ImageIO.read(getClass().getResourceAsStream("/images/c.png"))
你可以试试任何一种
// Read from same package
ImageIO.read(getClass().getResourceAsStream("c.png"));
// Read from absolute path
ImageIO.read(new File("E:/SOFTWARE/TrainPIS/res/drawable/c.png"));
// Read from images folder parallel to src in your project
ImageIO.read(new File("images/c.jpg"));
// Read from src/images folder
ImageIO.read(getClass().getResource("/images/c.png"))
// Read from src/images folder
ImageIO.read(getClass().getResourceAsStream("/images/c.png"))
你可以试试任何一种
// Read from same package
ImageIO.read(getClass().getResourceAsStream("c.png"));
// Read from absolute path
ImageIO.read(new File("E:/SOFTWARE/TrainPIS/res/drawable/c.png"));
// Read from images folder parallel to src in your project
ImageIO.read(new File("images/c.jpg"));
// Read from src/images folder
ImageIO.read(getClass().getResource("/images/c.png"))
// Read from src/images folder
ImageIO.read(getClass().getResourceAsStream("/images/c.png"))
得到了什么错误?不要忘记在重写的
paintComponent()
方法中调用super.paintComponent()
。尝试避免使用setPreferredSize()
方法好的,谢谢我在函数中加入了super.paintComponent()。得到了什么错误?不要忘记调用super.paintComponent()
在重写的paintComponent()
方法中。尽量避免使用setPreferredSize()
方法好的,谢谢我在函数中加入了super.paintComponent()。您会遇到什么错误?不要忘了在重写的paintComponent()中调用super.paintComponent()
method.尽量避免使用setPreferredSize()
方法好的,谢谢我在函数中加入了super.paintComponent()。出现了什么错误?别忘了在重写的paintComponent()
方法中调用super.paintComponent()
方法。尽量避免使用setPreferredSize())
methodOK谢谢我在函数中加入了super.paintComponent()。