Python堆糖网图片爬虫，多进程及多线程的使用例子

堆糖网，图片壁纸网站，存在反爬，发现返回的json数据错乱严重，只能爬取部分数据，图片数据缺失很厉害，应用python进行图片抓取采集下载，一个多进程及多线程的使用例子。

       

     

网址入口

       

     

get方式，参数

       

     

json数据

       

     

       

     

 

运行效果

       

     

       

     

 

单线程

 #www.duitang.com
#20200603 by WX:huguo00289


# -*- coding: utf-8 -*-
from fake_useragent import UserAgent
import urllib.parse
import requests,time,os,json




def ua():
    ua=UserAgent()
    headers={'User-Agent':ua.random,'Cookie': 'sessionid=ef6912ba-38d9-4b6e-a3d9-8d6526805f07; js=1; Hm_lvt_d8276dcc8bdfef6bb9d5bc9e3bcfcaf4=1590492733,1591182385; Hm_lpvt_d8276dcc8bdfef6bb9d5bc9e3bcfcaf4=1591182414'}
    #headers = {'User-Agent': ua.random}
    return headers




def get_imgs(i,keyword):
    kd=urllib.parse.quote(keyword)
    url=f"https://www.duitang.com/napi/blog/list/by_search/?kw={kd}&type=feed&include_fields=top_comments%2Cis_root%2Csource_link%2Citem%2Cbuyable%2Croot_id%2Cstatus%2Clike_count%2Clike_id%2Csender%2Calbum%2Creply_count%2Cfavorite_blog_id&_type=&start={24*i}&_=159118241418{i}"
    html=requests.get(url,headers=ua(),timeout=8).content.decode('utf-8')
    time.sleep(1)
    datas=json.loads(html)
    object_lists=datas['data']['object_list']
    print(len(object_lists))
    for object_list in object_lists:
        print(object_list)
        img_url=object_list['album']['covers'][0]
        img_name='%s%s'%(object_list['album']['id'],os.path.splitext(img_url)[1])
        print(img_url,img_name)
        down_img(img_url, img_name,keyword)




def down_img(img_url,img_name,keyword):
    os.makedirs(f'{keyword}/',exist_ok=True)  #创建目录
    r=requests.get(img_url,headers=ua(),timeout=5)
    with open(f'{keyword}/{img_name}','wb') as f:
        f.write(r.content)
    print(f'>>>保存{img_name}图片成功！')




def main(keyword):
    for i in range(1,10):
        print(f'>>>正在爬取第{i}页图片内容')
        get_imgs(i,keyword)


    print('采集图片完毕！')


if __name__=='__main__':
    main("按钮")
 

 

多行程及多进程

 #www.duitang.com
#20200603 by WX:huguo00289


# -*- coding: utf-8 -*-
from fake_useragent import UserAgent
import urllib.parse
import requests,time,os,json
import threading  #多线程
import multiprocessing #多进程




def ua():
    ua=UserAgent()
    headers={'User-Agent':ua.random,'Cookie': 'sessionid=ef6912ba-38d9-4b6e-a3d9-8d6526805f07; js=1; Hm_lvt_d8276dcc8bdfef6bb9d5bc9e3bcfcaf4=1590492733,1591182385; Hm_lpvt_d8276dcc8bdfef6bb9d5bc9e3bcfcaf4=1591182414'}
    #headers = {'User-Agent': ua.random}
    return headers




def get_imgs(num,keyword):
    kd=urllib.parse.quote(keyword)
    print(f'>>>正在爬取第{num}页图片内容')
    url=f"https://www.duitang.com/napi/blog/list/by_search/?kw={kd}&type=feed&include_fields=top_comments%2Cis_root%2Csource_link%2Citem%2Cbuyable%2Croot_id%2Cstatus%2Clike_count%2Clike_id%2Csender%2Calbum%2Creply_count%2Cfavorite_blog_id&_type=&start={24*num}&_=159118241418{num}"
    html=requests.get(url,headers=ua(),timeout=8).content.decode('utf-8')
    time.sleep(1)
    datas=json.loads(html)
    object_lists=datas['data']['object_list']
    print(len(object_lists))
    threads = []
    for object_list in object_lists:
        print(object_list)
        img_url=object_list['album']['covers'][0]
        img_name='%s%s'%(object_list['album']['id'],os.path.splitext(img_url)[1])
        print(img_url,img_name)
        t = threading.Thread(target=down_img, args=(img_url,img_name,keyword))
        threads.append(t)
    for i in threads:
        i.start()
    for i in threads:
        i.join()
    print(num, 'is ok')






def down_img(img_url,img_name,keyword):
    os.makedirs(f'{keyword}/',exist_ok=True)  #创建目录
    r=requests.get(img_url,headers=ua(),timeout=5)
    with open(f'{keyword}/{img_name}','wb') as f:
        f.write(r.content)
    print(f'>>>保存{img_name}图片成功！')


#单进程
def main(keyword):
    for i in range(1,10):
        get_imgs(i,keyword)


    print('采集图片完毕！')


#多进程
def maindjc(keyword):
    pool = multiprocessing.Pool(processes=4)  # 开4个进程
    for i in range(1, 10):
        pool.apply_async(func=get_imgs, args=(i, keyword))
    pool.close()
    pool.join()
    print('采集图片完毕！')


if __name__=='__main__':
    maindjc("美女")
 

参考来源：

[Python 爬虫]煎蛋网 OOXX 妹子图爬虫（2）——多线程+多进程下载图片

https://tendcode.com/article/jiandan-meizi-spider-2/

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