//BASE64解码成File文件

    //BASE64解码成File文件
    public static void base64ToFile(String base64, String destPath,String fileName) {
        File file = null;
        //创建文件目录
        String filePath=destPath;
        File  dir=new File(filePath);
        if (!dir.exists() && !dir.isDirectory()) {
            dir.mkdirs();
        }
        BufferedOutputStream bos = null;
        java.io.FileOutputStream fos = null;
        try {
//            byte[] bytes = Base64.getDecoder().decode(base64);
            byte[] bytes = Base64.getMimeDecoder().decode(base64);
            file=new File(filePath+"/"+fileName);
            fos = new java.io.FileOutputStream(file);
            bos = new BufferedOutputStream(fos);
            bos.write(bytes);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (bos != null) {
                try {
                    bos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }