@SuppressWarnings("unchecked")
private static MultipartFile[] resolveMultipartFiles(
HttpServletRequest request, MapBindingResult errors, String paramName) {
if (request instanceof MultipartRequest) {
try {
Map<String, Object> map = ((MultipartRequest) request).getFileMap();
MultipartFile[] multipartFiles = null;
Object value = map.get(paramName);
if (value instanceof MultipartFile) {
multipartFiles = new MultipartFile[] {(MultipartFile) value};
} else {
multipartFiles = (MultipartFile[]) value;
}
return multipartFiles;
} catch (Exception e) {
errors.reject("fileuploaderror", e.getMessage());
}
}
return null;
}
