org.apache.tomcat.util.http.fileupload.FileUploadBase$FileSizeLimitExceededException: The field pic exceeds its maximum permitted size of 1048576 bytes. 因为springboot内置tomact的的文件传输默认为1MB   /**  * 配置上传文件大小的配置  * @return  */ @Bean public MultipartConfigElement multipartConfigElement() {    MultipartConfigFactory factory = new MultipartConfigFactory();    //  单个数据大小    factory.setMaxFileSize("102400KB");    /// 总上传数据大小    factory.setMaxRequestSize("102400KB");    return factory.createMultipartConfig(); }