精简GolangSelenium启动Chrome，Cookie到本地，爬取链接

　　package main  import ( 	＂encoding/json＂ 	＂github.com/antchfx/htmlquery＂ 	＂github.com/tebeka/selenium＂ 	＂io/ioutil＂ 	＂log＂ 	＂strings＂ 	＂time＂ )  func main() { 	//设置日志输出格式 	log.SetFlags(log.LstdFlags | log.Lshortfile) 	//初始化1个chrome服务，端口使用4444 	service, err := selenium.NewChromeDriverService(＂chromedriver.exe＂, 4444) 	if err != nil { 		log.Println(err) 		return 	} 	defer service.Stop() 	//启动本地chrome浏览器 	caps := selenium.Capabilities{} 	wd, err := selenium.NewRemote(caps, ＂http://127.0.0.1:4444/wd/hub＂) 	if err != nil { 		log.Println(err) 		return 	} 	defer wd.Quit() 	//打开页面 	err = wd.Get(＂https://www.baidu.com/＂) 	if err != nil { 		log.Println(err) 		return 	} 	for true { 		//获取所有的handler 		handles, err := wd.WindowHandles() 		if err != nil { 			log.Println(err) 			return 		} 		//每次都跳转到最后一个handler 		err = wd.SwitchWindow(handles[len(handles)-1]) 		if err != nil { 			log.Println(err) 			return 		} 		//获取当前的url地址 		currentURL, err := wd.CurrentURL() 		if err != nil { 			log.Println(err) 			return 		} 		log.Println(currentURL) 		//获取cookies 		cookies, err := wd.GetCookies() 		if err != nil { 			log.Println(err) 			return 		} 		//尝试输出看看cookies的信息 		for i, cookie := range cookies { 			log.Println(i, cookie) 		} 		//通过json将cookies编码 		marshalIndent, err := json.MarshalIndent(cookies, ＂＂, ＂	＂) 		if err != nil { 			log.Println(err) 			return 		} 		log.Println(marshalIndent) 		//将cookies编码后的json写入到本地文件 		err = ioutil.WriteFile( 			＂cks.dat＂, 			marshalIndent, 			0777, 		) 		if err != nil { 			log.Println(err) 			return 		} 		//通过xpath获取当前页面的a链接 		pageSource, err := wd.PageSource() 		if err != nil { 			log.Println(err) 			return 		} 		newReader := strings.NewReader(pageSource) 		parse, err := htmlquery.Parse(newReader) 		if err != nil { 			log.Println(err) 			return 		} 		nodes := htmlquery.Find(parse, ＂//a[@href]＂) 		for i, node := range nodes { 			log.Println(i, htmlquery.InnerText(node), htmlquery.SelectAttr(node, ＂href＂)) 		} 		time.Sleep(time.Second * 1) 		break 	} }