byte流怎么转成Image

Question

字节数组还是字节流，如是流可以试试javax.imageio.ImageIO[1.4]
BufferedImage image = ImageIO.read(ImageIO.createImageInputStream(byteInputStream));

Answer 1

InputStream转换byte[]
public byte[] toBArray( InputStream is )
{
    ByteArrayOutputStream outp = new ByteArrayOutputStream();
    int ch = 0;
    while( (ch=is.read())!=-1 )
       outp.write(ch);
    byte[] b = outp.toByteArray();
    return b;
}