MultipartHttpServletRequest延伸MultipartRequest，其中有用于访问文件的方法。

MultipartHttpServletRequest extends MultipartRequest, which has methods for accessing the files.

您可以这样做：

MultipartFile file = request.getFile(paramName);

请参阅http://docs.spring.io/spring-framework/docs/3.2.0.M1/api/org/springframework/web/multipart/MultipartRequest.html