go如何爬取eth价格

小编给大家分享一下go如何爬取eth价格，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

package main
import (
   "encoding/json"
   "fmt"
   "github.com/PuerkitoBio/goquery"
   "net/http"
   "strconv"
   "strings"
)

func main() {
   var (
      res    *http.Response
      reqest *http.Request
      client = &http.Client{}
      err    error
   )
   reqest, err = http.NewRequest("POST", "http://srh.bankofchina.com/search/whpj/search.jsp", strings.NewReader("pjname=1316"))
   reqest.Header.Add("User-Agent", "Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like "+
      "Gecko) Chrome/73.0.3683.75 Safari/537.36")
   reqest.Header.Set("Content-Type", "application/x-www-form-urlencoded")
   reqest.Header.Add("Referer", "http://www.boc.cn/sourcedb/whpj/")
   reqest.Header.Add("Origin", "http://srh.bankofchina.com")
   reqest.Header.Add("Cookie", "JSESSIONID=0000poVLE_MQLZrCgwhZtvexMYX:-1")
   reqest.Header.Add("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,"+
      "image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3")
   reqest.Header.Add("Host", "srh.bankofchina.com")
   if res, err = client.Do(reqest); err != nil {
      return
   }
   defer res.Body.Close()
   test()
}

func test() {
   var (
      doc *goquery.Document
   )
   resp, err := http.Get("https://www.feixiaohao.com/currencies/ethereum/")

   if err != nil {
      // handle error
   }

   defer resp.Body.Close()

   if doc, err = goquery.NewDocumentFromReader(resp.Body); err != nil {
      return
   }
   //ll := doc.Find(`.priceInfo .convert`).Text()
   //fmt.Println(ll)
   doc.Find(`.priceInfo`).Each(func(i int, selection *goquery.Selection) {
      t := selection.Find(".convert").Text()
      fmt.Println(t)
      a := ""
      for _i, v := range t {
         if string(v) == "$" {
            a = t[:_i]
         }
      }
      fmt.Println(a)

   })
}
func priGetEthPrice() (ret float64, err error) {
   var (
      url  = "http://api.zb.cn/data/v1/ticker?market=eth_usdt"
      resp *http.Response
      doc  *goquery.Document
      data float64
   )
   // 获取数据
   if resp, err = http.Get(url); err == nil {
      defer resp.Body.Close()
   } else {
      return
   }
   // 解析参数
   if doc, err = goquery.NewDocumentFromReader(resp.Body); err != nil {
      return
   }
   var d *struct {
      Ticker struct {
         Buy string `json:"buy"`
      }
   }

   if err = json.Unmarshal([]byte(doc.Text()), &d); err != nil {
      return
   }
   if data, err = strconv.ParseFloat(d.Ticker.Buy, 64); err != nil {
      return
   }

   ret = data
   return
}

以上是"go如何爬取eth价格"这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注行业资讯频道！