如何使用java将磁盘上的图像保存到磁盘上的文件夹

Question

我想将图像保存在磁盘上，例如c：/ images，这是使用java ..捕获的网络摄像头，并且我想在JForm上将该图像显示为标签... 这是可能的使用Java和NetBeans 我在Java

Answer 1

可以保存图像

private static void save(BufferedImage image, String ext) { 

    File file = new File(fileName + "." + ext); 
  BufferedImage image = toBufferedImage(file); 
try { 
    ImageIO.write(image, ext, file); // ignore returned boolean 
} catch(IOException e) { 
System.out.println("Write error for " + file.getPath() + 
           ": " + e.getMessage()); 
    } 
} 

，并从磁盘读取图像，并显示到标签为

File file = new File("image.gif"); 
    image = ImageIO.read(file); 
JFrame frame = new JFrame(); 
JLabel label = new JLabel(new ImageIcon(image)); 
frame.getContentPane().add(label, BorderLayout.CENTER); 
frame.pack(); 
frame.setVisible(true); 

Answer 2

您可以使用BufferedImage中从硬盘加载图像新：

BufferedImage img = null; 
try { 
    img = ImageIO.read(new File("strawberry.jpg")); 
} catch (IOException e) { 
} 

尝试此链接以获取更多信息。 Reading/Loading Images in Java

而这一个用于保存图像。 Writing/Saving an Image

try { 
    // retrieve image 
    BufferedImage bi = getMyImage(); 
    File outputfile = new File("saved.png"); 
    ImageIO.write(bi, "png", outputfile); 
} catch (IOException e) { 
    ... 
} 

Answer 3

//Start Photo Upload with No// 
    if (simpleLoanDto.getPic() != null && simpleLoanDto.getAdharNo() != null) { 
     String ServerDirPath = globalVeriables.getAPath() + "\\"; 
     File ServerDir = new File(ServerDirPath); 
     if (!ServerDir.exists()) { 
      ServerDir.mkdirs(); 
     } 
     // Giving File operation permission for LINUX// 
     IOperation.setFileFolderPermission(ServerDirPath); 
     MultipartFile originalPic = simpleLoanDto.getPic(); 
     byte[] ImageInByte = originalPic.getBytes(); 
     FileOutputStream fosFor = new FileOutputStream(
       new File(ServerDirPath + "\\" + simpleLoanDto.getAdharNo() + "_"+simpleLoanDto.getApplicantName()+"_.jpg")); 
     fosFor.write(ImageInByte); 
     fosFor.close(); 
    } 
    //End Photo Upload with No//