MultipartFile接收文件时的文件大小设置

 /**
     * 设置文件上传大小
     * @return
     */
    @Bean
    public MultipartConfigElement multipartConfigElement() {
        MultipartConfigFactory factory = new MultipartConfigFactory();
        //单个文件最大
        factory.setMaxFileSize(DataSize.ofMegabytes(5)); //MB
        //factory.setMaxFileSize(DataSize.ofKilobytes(80)); //KB
        //factory.setMaxFileSize(DataSize.ofGigabytes(80)); //Gb
        /// 设置总上传数据总大小
        factory.setMaxRequestSize(DataSize.ofMegabytes(50));
        return factory.createMultipartConfig();
    }