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| package main
import ( "bytes" "fmt" "io" "io/ioutil" "net/http" "os" "strings" "time"
"github.com/PuerkitoBio/goquery" )
const ( Domain = "www.xxx.com" TmpDir = "./tmp/" )
func getListURL(page int) string { url := fmt.Sprintf("https://%s/touxiang/", Domain)
if page == 1 { return url + "index.html" }
return fmt.Sprintf("%sindex_%d.html", url, page) }
func getListPage(url string) (list []string, err error) { list = []string{}
html, err := http.Get(url)
if err != nil { return }
doc, err := goquery.NewDocumentFromReader(html.Body)
if err != nil { return }
doc.Find(".pMain .txList").Each(func(i int, s *goquery.Selection) { itemURL, _ := s.Find("a").Attr("href") list = append(list, fmt.Sprintf("https://%s%s", Domain, itemURL)) })
return list, nil }
func getImages(url string) (list []string, err error) { list = []string{}
html, err := http.Get(url)
if err != nil { return }
doc, err := goquery.NewDocumentFromReader(html.Body)
if err != nil { return }
doc.Find(".artCont .tx-img").Each(func(i int, s *goquery.Selection) { imageURL, _ := s.Find("a").Attr("href") list = append(list, normalizeURL(imageURL)) })
return list, nil }
func normalizeURL(url string) string { if strings.Index(url, "//") == 0 { url = "https:" + url }
if strings.Index(url, "!400x400_big") != -1 { return strings.Replace(url, "!400x400_big", "", 1) } else if strings.Index(url, "!400x400") != -1 { return strings.Replace(url, "!400x400", "", 1) }
return url }
func normalizeAllFileName() (err error) { files, err := ioutil.ReadDir(TmpDir)
if err != nil { return err }
for k, file := range files { os.Rename(TmpDir+file.Name(), fmt.Sprintf("%s%d.jpeg", TmpDir, k+1)) }
return nil }
func generateFileName(url string) string { _url := strings.Split(url, "/")
return _url[len(_url)-1] }
func downloadImage(url string, filename string) (err error) { resp, err := http.Get(url)
if err != nil { return }
body, _ := ioutil.ReadAll(resp.Body) out, _ := os.Create(TmpDir + filename) io.Copy(out, bytes.NewReader(body))
return nil }
func main() { for i := 1; i <= 30; i++ { url := getListURL(i)
fmt.Printf("正在抓取第 %d 页:%s\n", i, url)
list, err := getListPage(url)
if err != nil { fmt.Println("获取列表失败") }
for _, itemURL := range list { fmt.Printf("正在抓取图片列表:%s\n", itemURL)
time.Sleep(time.Duration(3) * time.Second)
images, err := getImages(itemURL)
if err != nil { fmt.Printf("获取图片列表失败%s\n", itemURL) }
for _, image := range images { fmt.Printf("正在下载图片:%s\n", image)
filename := generateFileName(image)
err := downloadImage(image, filename)
if err != nil { fmt.Printf("图片下载失败:%s\n", image) } } } }
fmt.Println("全部抓取完成")
normalizeAllFileName()
fmt.Println("完成!!!") }
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