java批量压缩图片

引入依赖

 <!--图片处理工具类-->
 <dependency>
       <groupId>net.coobird</groupId>
       <artifactId>thumbnailator</artifactId>
       <version>0.4.8</version>
   </dependency>

		String oldDest = "C:\\Users\\19046\\Desktop\\新建文件夹 (3)";

        File file = new File(oldDest);

        if(!file.exists()){
            System.out.println("文件夹不存在!");
        }

        //获取图片列表
        File[] imageList = file.listFiles();

        if(imageList!=null){

            for (File temp : imageList) {
                if(temp.isFile()){

                    System.out.println(temp.getAbsolutePath());
                    try {
                        Thumbnails.of(temp).scale(0.5f).outputQuality(0.25f).toFile(temp.getAbsolutePath());
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }


            }
        }