Quarkus中实现Resteasy的文件上传下载操作

<dependency>
    <groupId>org.jboss.resteasy</groupId>
    <artifactId>resteasy-multipart-provider</artifactId>
</dependency>

public class UploadEntity{
        @FormParam("file")
        private InputPart file;
        @FormParam("fileName")
        private String fileName;
        public InputPart getFile() {
            return file;
        }
        public void setFile(InputPart file) {
            this.file = file;
        }
        public String getFileName() {
            return fileName;
        }
        public void setFileName(String fileName) {
            this.fileName = fileName;
        }
    }

@POST
    @Path("/upload")
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    public Response upload(@MultipartForm UploadEntity uploadEntity) throws IOException {
        InputStream i = uploadEntity.getFile().getBody(InputStream.class, null);
        String[] contentDisposition = uploadEntity.getFile().getHeaders().getFirst("Content-Disposition").split(";");
        String fileName = "";
        for (String filename : contentDisposition) {
            if ((filename.trim().startsWith("filename"))) {
                String[] name = filename.split("=");
                fileName = name[1].trim().replaceAll("\"", "");
            }
        }
        logger.info("上传文件名:{}", fileName);
        logger.info("表单提交的文件名:{}", uploadEntity.getFileName());
        logger.info("上传文件内容:{}", IOUtils.toString(i, StandardCharsets.UTF_8));
        return Response.ok("ok").build();
    }

@GET
    @Path("/download")
    @Produces(MediaType.APPLICATION_OCTET_STREAM)
    public Response download(@QueryParam("fileName") String fileName) {
        String filePath = "E:\\工作相关\\" + fileName;
        File file = FileUtils.getFile(filePath);
        //对输出的文件名进行编码，防止下载的中文文件名乱码
        String encodFileName = URLEncoder.encode(fileName, StandardCharsets.UTF_8);
        return Response.ok(file)
                .header("content-disposition", "attachment; filename=\"" + encodFileName + "\"")
                .header("Content-Length", file.length())
                .build();
    }