golang语言爬虫代理代码示例

packagemainimport("net/url""net/http""bytes""fmt""io/ioutil""math/rand""time""strconv")constProxyServer="t.16yun.cn:31111"typeProxyAuthstruct{UsernamestringPasswordstring}func(pProxyAuth)ProxyClient()http.Client{ifp.Username!=nilandp.Password!=nil{proxyURL,_:=url.Parse("http://"+p.Username+":"+p.Password+"@"+ProxyServer)}else{proxyURL,_:=url.Parse("http://"+ProxyServer)}returnhttp.Client{Transport:&http.Transport{Proxy:http.ProxyURL(proxyURL)}}}funcmain(){targetURI:="http://httpbin.org/ip"// 初始化 proxy http clientclient:=ProxyAuth{License:"username",SecretKey:"password"}.ProxyClient()request,_:=http.NewRequest("GET",targetURI,bytes.NewBuffer([]byte(``)))// 设置Proxy-Tunnel// rand.Seed(time.Now().UnixNano())// tunnel := rand.Intn(10000)// request.Header.Set("Proxy-Tunnel", strconv.Itoa(tunnel) )response,err:=client.Do(request)iferr!=nil{panic("failed to connect: "+err.Error())}else{bodyByte,err:=ioutil.ReadAll(response.Body)iferr!=nil{fmt.Println("读取 Body 时出错",err)return}response.Body.Close()body:=string(bodyByte)fmt.Println("Response Status:",response.Status)fmt.Println("Response Header:",response.Header)fmt.Println("Response Body:\n",body)}}