Java ImageIO
检测ImageIo支持的图片类型
public static void main(String args[]) {
String readFormats[] = ImageIO.getReaderFormatNames();
String writeFormats[] = ImageIO.getWriterFormatNames();
System.out.println("Readers: " + Arrays.asList(readFormats));
System.out.println("Writers: " + Arrays.asList(writeFormats));
}
