如何在Spring中上传apk？

@Controller
public class FileUploadController {

    @RequestMapping(value = "/upload", method = RequestMethod.POST)
    public String handleFileUpload(@RequestParam("file") MultipartFile file) {
        if (!file.isEmpty()) {
            try {
                // 保存上传的apk文件到指定目录
                file.transferTo(new File("/path/to/save/apk/" + file.getOriginalFilename()));
                return "uploadSuccess";
            } catch (Exception e) {
                return "uploadError";
            }
        } else {
            return "uploadError";
        }
    }
}