upload.parse(request) 为null

Spring 的容器内配置了路径为rg.springframework.web.multipart.commons.CommonsMultipartResolver的bean，

在Controller内单独调用common-fileupload组件:

 

DiskFileUpload dfu =new DiskFileUpload();
List list = dfu.parseRequest(request);

 

这里获取的list会为NULL.注册到Spring的cmmonsMultipartResolver应该对Request做过解析，这里再去解析得到的值则为空.

 

if(!multipartResolver.isMultipart(request)){
	throw new IllegalArgumentException(String.format("请选择需要上传的文件!"));
}
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; 
	MultipartFile file = multipartRequest.getFile("imgFile");
	String fileName = file.getOriginalFilename();