Question

java怎么用io流将一张图片的字节码读成一张图片？

就是一个txt文件，里面是图片的字节码！

怎么读成一张图片！

Answer 1

public class Test{
private ImageIcon getImageAsIcon(String imageFile){
try {
InputStream in = Test.class.getResourceAsStream(imageFile);
final byte[] imageByteBuffer = convertToByteArray(in);
in.close();
return new ImageIcon(imageByteBuffer);
} catch (Exception e) {
return null;
}
}
private static byte[] convertToByteArray(final InputStream is) {
int read = 0;
int totalRead = 0;

byte[] byteArray = new byte[MAX_IMAGE_SIZE];

try {
while ((read = is.read(byteArray,totalRead,MAX_IMAGE_SIZE - totalRead)) >= 0) {
totalRead += read;
}
} catch (Exception e) { return null; }

byte[] finalByteArray = new byte[totalRead];
System.arraycopy(byteArray,0,finalByteArray,0, totalRead);
return finalByteArray;
}