Java+Tif图片转Jpg

Tif转Jpg使用心得：
如果tif图片需要压缩，或者需要做转换，常用方法：

 File file1 = new File("E:\\www\\ffw\\images\\73.jpg");
        byte[] bigContent = Files.readAllBytes(file1.toPath());
        ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bigContent);
        Thumbnails.of(byteArrayInputStream)
                .scale(1f).outputQuality(0.3f)
                .toFile("E:\\www\\ffw\\images\\4.jpg");


	 File file1 = new File("E:\\www\\ffw\\images\\5_1663186150934798337.jpg");
 	MultipartFile file = FileUtil.getMultipartFile(file1);
	byte[] bytes = FileUtil.imageSet(file.getBytes());
	InputStream is = new ByteArrayInputStream(bytes );
	BufferedImage bufImg = ImageIO.read(is);
	后续网上很多 省略掉..... 主要是 ImageIO.read(is) 会读取为null
	



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解决方案：
引入依赖：

        <dependency>
            <groupId>com.twelvemonkeys.imageio</groupId>
            <artifactId>imageio-tiff</artifactId>
            <version>3.4.1</version>
        </dependency>
        <dependency>
        <!--Thumbnails支持-->
      <groupId>net.coobird</groupId>
      <artifactId>thumbnailator</artifactId>
      <version>0.4.8</version>
    </dependency>
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让两个工具类支持读取Tif文件

        String[] readerList = ImageIO.getReaderFormatNames();
        System.out.println("读取支持格式："+Arrays.asList(readerList));
        String[] writerList = ImageIO.getWriterFormatNames();
        System.out.println("写入支持格式："+Arrays.asList(writerList));
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引入前：

引入后：