golang 上传图片

uploadImage.go

// 上传图片
func UploadImage(websiteID uint64, name string, file io.Reader, uploadCdn bool) (uint64, string, error) {
	url, err := getImageUrl()
	if err != nil {
		return 0, "", err
	}

	var isLocal uint64
	if uploadCdn {
		isLocal = 0
	} else {
		isLocal = 1
	}

	body := new(bytes.Buffer)
	writer := multipart.NewWriter(body)
	formFile, err := writer.CreateFormFile("file", name)
	if err != nil {
		return 0, "", err
	}

	_, err = io.Copy(formFile, file)
	if err != nil {
		return 0, "", err
	}

	writer.WriteField("is_local", fmt.Sprintf("%d", isLocal))
	writer.WriteField("website_id", fmt.Sprintf("%d", websiteID))

	err = writer.Close()
	if err != nil {
		return 0, "", err
	}

	req, err := http.NewRequest("POST", url, body)
	if err != nil {
		return 0, "", err
	}
	req.Header.Set("Content-Type", writer.FormDataContentType())

	client, err := getHttpClient()
	if err != nil {
		return 0, "", err
	}

	var result FileResp
	err = client.Do(context.TODO(), req, &result)
	fmt.Println(result)
	if err != nil {
		return 0, "", err
	}

	if result.Status != 200 {
		return 0, "", errors.New(fmt.Sprintf("请求接口错误：%s", result.Message))
	}

	return result.Data.FileId, result.Data.Src, nil
}