在Java中将字节数组转换为image(blob) [英] conversion of byte array into image(blob) in java

问题描述

用于从字节数组到图像(即blob)的图像转换的代码.

The code for the image conversion from byte array to image i.e blob.

 try
 {
     Blob image_vis = rs1.getBlob(10);
     InputStream x=image_vis.getBinaryStream();
     OutputStream out=new FileOutputStream(string_op);
     byte[] bytes = string_op.getBytes();
     String s=new String(bytes);
     System.out.println(+s);  //prints bytes for the string
     ImageIcon icon_cap = new ImageIcon(string_op);
     image_cap.setIcon(icon_cap);  //prints nothing to Jlabel
     //image_cap.setText(s);    //prints a path of a image
  }

我可以获取图像的路径，但是可以将其转换为图像格式，以便将其显示在表单上.请帮助我.

I am able to get path of an image, but I am anable to convert it into image format, so that it will display on a form. please help me.

推荐答案

尝试一下..

try
 {
Blob image_vis = rs1.getBlob("blobColumn");
int blobLength = (int) image_vis.length();  

byte[] bytes = image_vis.getBytes(1, blobLength);
image_vis.free();
final BufferedImage bufferedImage = ImageIO.read(new ByteArrayInputStream(bytes));
ImageIO.write(bufferedImage, "jpg", new File("ImagePath/ImageName.jpg"));
}

稍后您可以拾取图像.

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