go从Request获取IP地址

go-get-ip-from-request

func GetIPFromRequest(r *http.Request) string {
	ip, _, err := net.SplitHostPort(r.RemoteAddr)
	if err != nil {
		glog.Errorf("userip: %q is not IP:port", r.RemoteAddr)
		return ""
	}
	userIP := net.ParseIP(ip)
	if userIP == nil {
		glog.Errorf("userip: %q is not IP:port", r.RemoteAddr)
		return ""
	}
	return userIP.String()
}