环境

vue3+typescript+arcodesign vue+openapi生成接口

需求

前端使用arco design 的文件上传组件a-upload上传到七牛云进行对象存储，前端api由openapi生成

template

<a-upload
                  action="/"
                  name="file"
                  :fileList="file ? [file] : []"
                  :show-file-list="false"
                  @change="onChange"
                  @progress="onProgress"
                >
                  <template #upload-button>
                    <div
                      :class="`arco-upload-list-item${
                        file && file.status === 'error'
                          ? ' arco-upload-list-item-error'
                          : ''
                      }`"
                    >
                      <div
                        class="arco-upload-list-picture custom-upload-avatar"
                        v-if="file && file.url"
                      >
                        <img :src="file.url" />
                        <div class="arco-upload-list-picture-mask">
                          <IconEdit />
                        </div>
                        <a-progress
                          v-if="
                            file.status === 'uploading' && file.percent < 100
                          "
                          :percent="file.percent"
                          type="circle"
                          size="mini"
                          :style="{
                            position: 'absolute',
                            left: '50%',
                            top: '50%',
                            transform: 'translateX(-50%) translateY(-50%)',
                          }"
                        />
                      </div>
                      <div class="arco-upload-picture-card" v-else>
                        <div class="arco-upload-picture-card-text">
                          <IconPlus />
                          <div style="margin-top: 10px; font-weight: 600">
                            Upload
                          </div>
                        </div>
                      </div>
                    </div>
                  </template>
                </a-upload>

script

const file = ref();

const onChange = (_: any, currentFile: FileItem) => {
  file.value = currentFile;
  // file.value = new File([currentFile], "pic.jpg");
  // console.log(file);
  var response = FileControllerService.uploadPicUsingPost(currentFile.file);
  if (response.code === 0) {
    message.success("上传成功" + response.data);
  } else {
    message.error("上传失败：" + response.data);
  }
};
const onProgress = (currentFile: Blob) => {
  file.value = currentFile;
  message.info("上传中");
};

主要是currentFile的类型要写对，我前端学的少真的废了很多时间

api

 /**
   * uploadPic
   * @param file file
   * @returns BaseResponse_string_ OK
   * @returns any Created
   * @throws ApiError
   */
  public static uploadPicUsingPost(
    file: Blob
  ): CancelablePromise<BaseResponse_string_ | any> {
    return __request(OpenAPI, {
      method: "POST",
      url: "/api/file/uploadPic",
      formData: {
        file: file,
      },
      errors: {
        401: `Unauthorized`,
        403: `Forbidden`,
        404: `Not Found`,
      },
    });
  }

java controller

 @PostMapping("/uploadPic")
    public BaseResponse<String> uploadPic(@RequestParam("file") MultipartFile multipartFile, HttpServletRequest request) {
        if (multipartFile == null) {
            throw new BusinessException(ErrorCode.PARAMS_ERROR, "上传文件为空" + multipartFile.toString());
        }

        String filename = multipartFile.getOriginalFilename();
        String contentType = multipartFile.getContentType();
        long size = multipartFile.getSize();

        log.info("文件：" + filename + " 上传");

        if (!contentType.equals("image/jpeg") && !contentType.equals("image/png") && !contentType.equals("image/jpg")) {
            throw new BusinessException(ErrorCode.PARAMS_ERROR, "不支持的文件类型:" + contentType.toString());
        }
        log.info("文件格式：" + contentType);

        if (size > 5 * 1024 * 1024) {
            throw new BusinessException(ErrorCode.PARAMS_ERROR, "文件大小应不超过5MB");
        }
        log.info("文件大小：" + size);

        //构造一个带指定 Region 对象的配置类
        Configuration cfg = new Configuration(Region.region0());
        // 指定分片上传版本
        cfg.resumableUploadAPIVersion = Configuration.ResumableUploadAPIVersion.V2;
        //...其他参数参考类注释

        UploadManager uploadManager = new UploadManager(cfg);
        //...生成上传凭证，然后准备上传

        //
        String imgURL = "";

        //默认不指定key的情况下，以文件内容的hash值作为文件名
        String key = null;


        InputStream inputStream = null;
        try {
            inputStream = multipartFile.getInputStream();
            Auth auth = Auth.create(accessKey, secretKey);//创建凭证
            String upToken = auth.uploadToken(bucket); //上传凭证
            //修改6 put方法 第一个参数 要放上面 自己定义的 inputStream对象
            Response response = uploadManager.put(inputStream, key, upToken, null, null);
            //解析上传成功的结果
            DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
//            System.out.println(putRet.key);
//            System.out.println(putRet.hash); // hash值就是上传后的图片名字

            //todo 把图片URL写入数据库
            imgURL = baseURL + putRet.hash;
            log.info("上传成功,图片地址" + imgURL);
        } catch (IOException e) {
            e.printStackTrace();
            throw new BusinessException(ErrorCode.PARAMS_ERROR, "文件读取失败");
        } finally {
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        // 对上传的图片进行处理，例如保存到数据库等操作

        return ResultUtils.success(imgURL);

    }
 

参考🔗

https://blog.csdn.net/m0_54409739/article/details/134889798