@PostMapping(value = "/files")
    @ApiDoc(desc = "files")
    public String files(@RequestParam("files") final MultipartFile[] files) {
        return Arrays.stream(files).map(MultipartFile::getOriginalFilename).collect(Collectors.joining(","));
    }
mvc upload multiple files.
@param files files.
@return  response
shenyu-examples/shenyu-examples-springmvc/src/main/java/org/apache/shenyu/examples/springmvc/controller/UploadController.java