MultipartFile 转换为File

public void importOrder(MultipartFile files) {
    try {
        File file = new File(files.getOriginalFilename());
        InputStream inputStream = files.getInputStream();

//file就可以直接用了

}

}

/**
 * @Author
 * @Description  muti 转为file
 * Date 2019/3/5 13:36
 * @Param [ins, file]
 * @return void
 **/

public static void inputStreamToFile (InputStream ins, File file){
    try {
        OutputStream os = new FileOutputStream(file);
        int bytesRead = 0;
        byte[] buffer = new byte[8192];
        while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) {
            os.write(buffer, 0, bytesRead);
        }
        os.close();
        ins.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}