Function HandleResponse

utils/util.go:774–783

处理http响应成败

(resp *http.Response, err error)

// 处理http响应成败
func HandleResponse(resp *http.Response, err error) error {
	if err == nil {
		defer resp.Body.Close()
		if resp.StatusCode >= 300 || resp.StatusCode < 200 {
			b, _ := ioutil.ReadAll(resp.Body)
			err = errors.New(resp.Status + "；" + string(b))
		}
	}
	return err
}

// 下载图片
func DownImage(src string, headers ...map[string]string) (filename string, err error) {