javax.imageio.imageio.Read（new bytearrayinputstream（data））在阅读字节数组映像数据时会引发实例异常
public static void createImage2() {
try {
BufferedImage bImage = ImageIO.read(new File("input.jpg"));
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ImageIO.write(bImage, "jpg", bos );
byte [] data = bos.toByteArray();
ByteArrayInputStream bis = new ByteArrayInputStream(data);
BufferedImage bImage2 = ImageIO.read(bis);
ImageIO.write(bImage2, "jpg", new File("output.jpg") );
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("image created");
}
方法imageio.read（bis）抛出此例外：
Exception in thread "main" java.util.ServiceConfigurationError: javax.imageio.spi.ImageReaderSpi: Provider com.aware.j2k.imageio.J2KImageReaderSpi could not be instantiated
public static void createImage2() {
try {
BufferedImage bImage = ImageIO.read(new File("input.jpg"));
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ImageIO.write(bImage, "jpg", bos );
byte [] data = bos.toByteArray();
ByteArrayInputStream bis = new ByteArrayInputStream(data);
BufferedImage bImage2 = ImageIO.read(bis);
ImageIO.write(bImage2, "jpg", new File("output.jpg") );
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("image created");
}
The method ImageIO.read(bis) throws this exception:
Exception in thread "main" java.util.ServiceConfigurationError: javax.imageio.spi.ImageReaderSpi: Provider com.aware.j2k.imageio.J2KImageReaderSpi could not be instantiated
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如果您的应用程序抛出了SPI -java.util.serviceloader的消息，请找不到库，对于添加库，您必须选择并添加依赖项fe
group：com.twelvemonkeys.imageio.imageio或其他实现将图像读取到
bufferedimage我建议您使用新图像，建议使用
注意
默认情况下，使用图像的许多功能使用磁盘存储用于缓存或TMP
If you application throw exception with message of SPI - java.util.ServiceLoader don't find library, for add library you must just choose and add dependency f.e.
group: com.twelvemonkeys.imageioor another implementationFor reading image to
BufferedImagei recommend useif you need create new image i recommend use
ATTENTION
a lot of function for working with image use disk storage for cache or tmp by default