ImageIO无法写入JPEG文件的原因及处理方法分享

今天使用BufferedImage写入jpeg文件
  此时Java程序发生异常

注意事项:
  但是可保存为gif和png
那出现这种现象的原因是什么呢？笔者将一一道来，如下所示

出现这种现象的原因:
    由于我们使用的是OpenJDK
	OpenJDK中没有JPEG编码器
	此时我们只需更换JDK即可 

 
   File outputfile = new File("tmp/" + row + ":" + col + ".jpg");
   try {
       ImageIO.write(mapBufferTiles[row][col], "jpg", outputfile);
   } catch (IOException e) {
        outputfile.delete();
        throw new RuntimeException(e);
   }

 
 Exception in thread "main" java.lang.RuntimeException: javax.imageio.IIOException: Invalid argument to native writeImage
 at TestClass.buildImg(TestClass.java:91)
 at TestClass.<init>(TestClass.java:22)
 at TestClass.main(TestClass.java:118)
 Caused by: javax.imageio.IIOException: Invalid argument to native writeImage
 at com.sun.imageio.plugins.jpeg.JPEGImageWriter.writeImage(Native Method)
 at com.sun.imageio.plugins.jpeg.JPEGImageWriter.writeOnThread(JPEGImageWriter.java:1055)
 at com.sun.imageio.plugins.jpeg.JPEGImageWriter.write(JPEGImageWriter.java:357)
 at javax.imageio.ImageWriter.write(ImageWriter.java:615)
 at javax.imageio.ImageIO.doWrite(ImageIO.java:1602)
 at javax.imageio.ImageIO.write(ImageIO.java:1526)
 at TestClass.buildImg(TestClass.java:87)