获取路由使用端口问题

[travelliu]

`
for _, server := range config.httpServerAddresses {
u.Host = fmt.Sprintf("%s:%d", server.host, config.httpServerPort)
logger.Info("Getting router config from %s", u.String())

	resp, err := client.Get(u.String())
	if err != nil {
		logger.Warning("Error occurred while getting router config from url %s", u.String())
		continue
	}

	c.parse(resp.Body)
	return
}

`

u.Host = fmt.Sprintf("%s:%d", server.host, config.httpServerPort) 这个怎么是使用了默认端口,不是应该使用 server.port吗