1.网络资源转File

需要引入依赖commons-io

   /**
     * 读取网络中的图片
     * @param url https://www.kziyue.com/wp-content/uploads/2019/06/5bca-hxyuaph9825616.jpg
     * @return
     */
    public File URLToFile(String url){
        File file1 = new File("test.png");
        try {

            URL url1 = new URL(url);
            FileUtils.copyURLToFile(url1,file1);

        } catch (IOException e) {
            e.printStackTrace();
        }
        File absoluteFile = file1.getAbsoluteFile();
        return file1;
    }