将字节数组转换为图像(png)

Question

我有一个byte[]，它是通过从某个表中提取数据返回的。我想把这个字节数组转换成png图像。注意：我没有像其他地方类似的例子中那样从图像中获得字节数组。

 byte[] bytes = modelDashboardService.exportMyQueuePNG("pp83900","1");

InputStream in = new ByteArrayInputStream(bytes);

BufferedImage bImageFromConvert = ImageIO.read(in);//ImageIO.read(url);//

if(bImageFromConvert != null){
  ImageIO.write(bImageFromConvert, "png", new File(
  "D:/test1.png"));

My byte[] is not null but my BufferedImage is null .

Answer 1

使用它：

File file = new File(getFilesDir()+"/file.png");
FileOutputStream fos = new FileOutputStream(file);

//write your byteArray here
fos.write(byteArray);
fos.flush();
fos.close();

请参阅此链接