爬取Fiverr網站 關於爬蟲相關的工作和圖片

 

爬取Fiverr網站 關於爬蟲相關的工作和圖片

#coding=utf-8
import re
import requests
import queue
import threading





class MyThread(threading.Thread):
    def __init__(self,func,**kwargs):
        super().__init__()

        self.is_running=True
        self.func=func
        self.kwargs =kwargs

    def run(self):
        self.func(self,self.kwargs)

    def stop(self):
        self.is_running=False

class CrawlFiverrr:
    def __init__(self):
        self.crawlQueue = queue.Queue()
        self.responseQueue = queue.Queue()
        self.downloadQueue = queue.Queue()

    def secherdule(self):
        for page in range(1, 20):
            print("page={}".format(page))
            url = 'https://www.fiverr.com/categories/programming-tech/data-analysis-services?source=gallery-listing&page={}&page_size=100&offset=-2&filter=rating&ref=tool%3Apython'.format(
                page)
            self.crawlQueue.put(url)

    def fetcher(self,parent,kwargs=None):
        headers={
            'user-agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36'
        }
        while True:
            if parent.is_running==False:
                break
            url=self.crawlQueue.get()
            req =requests.get(url,headers=headers)
            content = bytes.decode(req.content)
            self.responseQueue.put(content)
            self.crawlQueue.task_done()



    def processer(self,parent,kwargs=None):
        while True:
            if parent.is_running==False:
                break
            if self.responseQueue.empty():
                continue
            content = self.responseQueue.get()

            titles =re.findall('\"title\"\:\"(.*?)\"',content)
            print(len(titles))
            with open("titles1.txt", 'a+') as f:
                f.write("\n".join(titles))
            img_refs= re.findall('\"cloud_img_main_gig\"\:\"(.*?)\"',content)
            print(len(img_refs))
            for img_url in img_refs:
                self.downloadQueue.put(img_url)

            self.responseQueue.task_done()


    def download(self,parent,kwargs=None):
        while True:
            if parent.is_running==False:
                break
            if self.downloadQueue.empty():
                continue
            img_url = self.downloadQueue.get()
            r = requests.get(img_url)
            file=img_url.split("/")[-1]
            with open("images/{}".format(file), 'wb') as f:
                f.write(r.content)
            self.downloadQueue.task_done()



if __name__=="__main__":
    crawlFiverrrHelper = CrawlFiverrr()
    crawlFiverrrHelper.secherdule()

    threadsList=[]
    t=MyThread(crawlFiverrrHelper.fetcher)
    threadsList.append(t)
    t.start()

    for i in range(10):
        t=MyThread(crawlFiverrrHelper.processer)
        threadsList.append(t)
        t.start()


    for i in range(10):
        t=MyThread(crawlFiverrrHelper.download)
        threadsList.append(t)
        t.start()

    for t in threadsList:
        t.join()