Go语言开源库实现Onvif协议客户端设备搜索

package client
import (
	"fmt"
	"github.com/beevik/etree"
	goonvif "github.com/use-go/onvif"
	"github.com/use-go/onvif/device"
	"github.com/use-go/onvif/gosoap"
	"github.com/use-go/onvif/media"
	"github.com/use-go/onvif/ptz"
	"github.com/use-go/onvif/xsd"
	"github.com/use-go/onvif/xsd/onvif"
	"io/ioutil"
	"log"
	"net/http"
	"strings"
)
type Code int32
const (
	OK				Code = 0
	SearchErr		Code = -1
	ConnectErr 		Code = -2
	CreateUserErr	Code = -20
	GetProfilesErr	Code = -30
	GetStreamUriErr Code = -40
	PTZErr			Code = -50
	SetPresetErr	Code = -70
	GotoPresetErr	Code = -71
	RemovePresetErr	Code = -72
	GetSnapShotUriErr	Code = -100
)
type returnInfo struct {
	//状态码
	Code Code
	//错误或者返回信息
	ErrInfo string
}
/**
 * @Description: 搜索设备，返回搜索到的设备列表
 * @Author:ZY
 * @time: 2021-03-25 14:23:04
 * @receiver client
 * @return returnInfo
 */
func (client *GoOnvifClient) SearchDevice() returnInfo {
	devices := goonvif.GetAvailableDevicesAtSpecificEthernetInterface("eth0")
	if devices == nil {
		return returnInfo{SearchErr, "search devices failed."}
	}
	client.Devices = devices
	return returnInfo{OK, "search device success"}
}