python - 几行后，我的网络爬虫停止从网站上读取数据
问题描述
试图从耐克网站上抓取网页进行练习，并将数据保存在 csv 文件中。它在将数据保存到文件方面工作得很好，但它只保存前 24 只鞋子（鞋子名称、价格、颜色等），即使我试图阅读的页面上有 50 多只鞋子。请注意，最初页面显示的鞋子较少，但随着我们继续向下滚动，它开始显示更多的鞋子，但即使最初它显示的鞋子也略多于 24 只。这是我的第一个刮板和我的第一个帖子，如果有不清楚的地方，我很抱歉，但感谢您的帮助。谢谢
from urllib.request import urlopen
mylink = "https://www.nike.com/w/mens-soccer-shoes-1gdj0znik1zy7ok"
opened = urlopen(mylink)
read = opened.read()
opened.close()
page = soup(read, "html.parser")
containers = page.findAll("div", {"class":"product-card__info"})
file = open("nike.csv" , "w")
headers = "Name , Type, Colors, Price \n"
file.write(headers)
for container in containers:
namecontainer = container.findAll("div", {"class": "product-card__title"})
name = namecontainer[0].text
typecontainer = container.findAll("div", {"class": "product-card__subtitle"})
type = typecontainer[0].text
colors = container.findAll("div", {"class": "product-card__count-wrapper"})
no_of_colors = colors[0].button.div.text
pricecontainer = container.findAll("div", {"data-test": "product-price"})
price = pricecontainer[0].text
print("name: " + name)
print("type: " + type)
print("colors: " + no_of_colors )
print("price : " + price + "\n")
file.write(name.replace(",","|") + "," + type.replace(",","|") + "," + no_of_colors + "," + price + "\n)```
解决方案
当您使用 JavaScript 向下滚动页面时，该页面会加载新产品。您可以使用requests模块对其进行模拟。
例如：
import re
import json
import requests
from bs4 import BeautifulSoup
url = 'https://www.nike.com/gb/w/mens-football-shoes-1gdj0znik1zy7ok'
page_url = 'https://api.nike.com/cic/browse/v1'
endpoint = '/product_feed/rollup_threads/v2?filter=marketplace(GB)&filter=language(en-GB)&filter=employeePrice(true)&filter=attributeIds({concept_id})&anchor={anchor}&consumerChannelId={channel_id}&count={count}'
data = {'queryid': 'products', 'endpoint': endpoint}
with requests.session() as s:
soup = BeautifulSoup( s.get(url).text, 'html.parser' )
concept_id = soup.select_one('meta[name="branch:deeplink:$deeplink_path"]')['content'].split('=')[-1]
channel_id = re.search(r'"channelId":"(.*?)"', str(soup)).group(1)
curr = 0
while True:
data['endpoint'] = endpoint.format(concept_id=concept_id, channel_id=channel_id, anchor=curr, count=50)
json_data = s.get(page_url, params=data).json()
# uncomment this to print all data:
# print(json.dumps(json_data, indent=4))
# print some data to the screen:
for i, o in enumerate(json_data['data']['products']['objects'], curr+1):
print('{:<3} {:<60}{:<10}{}'.format(i, o['publishedContent']['properties']['title'], o['productInfo'][0]['merchPrice']['currentPrice'], o['productInfo'][0]['productContent']['colorDescription']))
if i % 50:
break
curr += 50
印刷：
1 Nike Mercurial Superfly 7 Elite CR7 Safari FG 249.95 White/Black/Total Orange
2 Nike Mercurial Vapor 13 Elite CR7 Safari FG 239.95 White/Black/Total Orange
3 Nike Mercurial Vapor 13 Elite FG 219.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
4 Nike Mercurial Superfly 7 Elite FG 229.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
5 Nike Phantom Vision 2 Elite Dynamic Fit FG 229.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
6 Nike Phantom Venom Elite FG 219.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
7 Nike Tiempo Legend 8 Elite FG 189.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
8 Nike Mercurial Vapor 13 Elite Korea FG 239.95 White/Black/Pink Beam/Red Orbit
9 Nike Mercurial Superfly 7 Elite Korea FG 249.95 White/Black/Pink Beam/Red Orbit
10 Nike Mercurial Superfly 7 Club CR7 Safari MG 64.95 White/Black/Total Orange
11 Nike Phantom Vision Academy MG By You 94.95 Multi-Colour/Multi-Colour
12 Nike Mercurial Superfly 7 Academy FG By You 94.95 Multi-Colour/Multi-Colour
13 Nike Mercurial Vapor 13 Academy FG By You 84.95 Multi-Colour/Multi-Colour
14 Nike Mercurial Vapor 13 Elite FG By You 234.95 Multi-Colour/Multi-Colour
15 Nike Mercurial Vapor 13 Club IC 42.95 Black/Black
16 Nike Phantom Venom Elite AG-Pro 219.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
17 Nike Phantom Vision 2 Academy Dynamic Fit TF 79.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
18 Nike Mercurial Superfly 7 Elite AG-PRO 229.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
19 Nike Mercurial Superfly 7 Pro FG 129.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
20 Nike Tiempo Legend 8 Academy MG 64.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
21 Nike Phantom Vision 2 Pro Dynamic Fit FG 129.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
22 Nike Tiempo Legend 8 Club MG 42.95 Laser Crimson/White/Black
23 Nike Mercurial Vapor 13 Academy MG 69.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
24 Nike Mercurial Vapor 13 Pro FG 114.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
25 Nike Mercurial Vapor 13 Academy TF 69.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
26 Nike Mercurial Superfly 7 Academy MG 79.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
27 Nike Mercurial Vapor 13 Club Neymar Jr. MG 47.95 White/Volt/Black/Racer Blue
28 Nike Mercurial Vapor 13 Club MG 42.95 Black/Black
29 Nike Phantom Vision 2 Academy Dynamic Fit MG 79.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
30 Nike Tiempo Legend 8 Pro FG 114.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
31 Nike Mercurial Superfly 7 Club MG 59.95 Laser Crimson/Laser Crimson/Black
32 Nike PhantomVNM Club FG 47.95 Laser Crimson/Black/Metallic Silver
33 Nike Mercurial Vapor 13 Elite AG-PRO 219.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
34 Nike Phantom Vision 2 Elite Dynamic Fit AG-PRO 229.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
35 Nike Mercurial Vapor 13 Club TF 42.95 Black/Black
36 Nike Tiempo Legend 8 Academy TF 64.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
37 Nike Mercurial Superfly 7 Academy AG 79.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
38 Nike Mercurial Superfly 7 Elite TF 154.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
39 Nike Mercurial Vapor 13 Club Neymar Jr. TF 47.95 White/Volt/Black/Racer Blue
40 Nike Mercurial Vapor 13 Club Neymar Jr IC 47.95 White/Volt/Black/Racer Blue
41 Nike Mercurial Superfly 7 Elite IC 154.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
42 Nike Mercurial Superfly 7 Academy TF 79.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
43 Nike Mercurial Vapor 13 Academy IC 69.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
44 Nike Mercurial Superfly 7 Academy IC 79.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
45 Nike Tiempo Legend 8 Elite AG-PRO 189.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
46 Nike Phantom Vision 2 Academy Dynamic Fit IC 79.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
47 Nike Mercurial Vapor 13 Academy AG 69.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
48 Nike Phantom Vision 2 Academy Dynamic Fit AG 79.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
49 Nike Tiempo Legend 8 Academy IC 64.95 Metallic Bomber Grey/Particle Grey/Laser Crimson/Black
50 Nike Phantom Vision Elite FG By You 244.95 Multi-Colour/Multi-Colour
51 Nike Mercurial Superfly 7 Elite FG By You 244.95 Multi-Colour/Multi-Colour
52 Nike Phantom Vision 2 Elite Dynamic Fit FG 147.47 Black/Black
53 Nike PhantomVNM Club TF 47.95 Black/Volt
54 Nike Mercurial Superfly 7 Club TF 59.95 Black/Cool Grey/Metallic Cool Grey
55 Nike Tiempo Legend 8 Elite FG 121.97 Black/Total Orange/White
56 Nike Phantom Vision 2 Academy Dynamic Fit TF 56.97 Black/Black
57 Nike Phantom Venom Elite AG-Pro 140.97 Laser Crimson/Black/Metallic Silver
58 Nike Mercurial Superfly 7 Elite MDS AG-PRO 159.97 Lemon Venom/Black
59 Nike Premier II Anti-Clog Traction SG-PRO 73.47 Off Noir/Laser Crimson/Off Noir
60 Nike Premier II FG 63.97 Black/Volt/Electric Green/White
61 Nike Tiempo Legend 8 Elite AG-PRO 121.97 Black/Black
62 Nike React Phantom Vision 2 Pro Dynamic Fit TF 67.47 Black/Black
63 Nike Premier 2 Sala IC 60.47 Black/Total Orange/White
64 Nike Mercurial Superfly 7 Elite SG-PRO Anti-Clog Traction 153.97 Black/Black
65 Nike Phantom Venom Pro FG 73.97 Black/Black
66 Nike Phantom Vision Elite Dynamic Fit AG-PRO 147.47 Dark Grey/Black/Bright Mango
67 Nike Phantom Vision 2 Academy Dynamic Fit SG-PRO Anti-Clog Traction60.47 Black/Black
68 Nike Lunar Gato II IC 56.97 Dark Smoke Grey/Black/Volt/White
69 Nike Mercurial Vapor 13 Academy Neymar Jr. IC 64.47 White/Racer Blue/Volt/Black
70 Nike Mercurial Vapor 13 Elite FG 153.97 Black/Matte Silver/Metallic Cool Grey/Black
71 Nike Mercurial Vapor 13 Pro Neymar Jr. FG 87.47 White/Racer Blue/Volt/Black
72 Nike Mercurial Vapor 13 Academy Neymar Jr. MG 64.47 White/Racer Blue/Volt/Black
73 Nike Mercurial Superfly 7 Academy MDS MG 60.47 Lemon Venom/Black
74 Nike Mercurial Vapor 13 Elite MDS AG-PRO 153.97 Lemon Venom/Black
75 Nike Mercurial Vapor 13 Elite MDS FG 167.97 Lemon Venom/Black
76 Nike Mercurial Vapor 13 Academy Neymar Jr AG 64.47 White/Racer Blue/Volt/Black
77 Nike Mercurial Vapor 13 Academy MDS TF 64.47 Lemon Venom/Black
78 Nike Mercurial Superfly 7 Academy MDS TF 60.47 Lemon Venom/Black
79 Nike Mercurial Vapor 13 Academy MDS MG 64.47 Lemon Venom/Black
80 Nike Mercurial Superfly 7 Elite MDS FG 174.97 Lemon Venom/Black
81 Nike Mercurial Vapor 13 Academy MDS IC 64.47 Lemon Venom/Black
82 Nike React Gato 73.97 Black/Total Orange/Dark Smoke Grey/White
83 Nike React Tiempo Legend 8 Pro IC 67.47 Black/Laser Orange/Black
84 Nike Mercurial Vapor 13 Academy Neymar Jr. TF 64.47 White/Racer Blue/Volt/Black
85 Nike Mercurial Superfly 7 Pro MDS AG-PRO 97.97 Lemon Venom/Black
86 Nike Mercurial Vapor 13 Elite Neymar Jr. FG 167.97 White/Racer Blue/Volt/Black
87 Nike Mercurial Vapor 13 Elite Neymar Jr. AG-PRO 167.97 White/Racer Blue/Volt/Black
88 Nike Mercurial Vapor 13 Academy MDS AG 64.47 Lemon Venom/Black
89 Nike Phantom Vision 2 Elite Dynamic Fit AG-PRO 147.47 Laser Crimson/Black/Metallic Silver
90 Nike Mercurial Vapor 13 Pro IC 67.47 Black/Black
91 Nike Tiempo Legend 8 Elite SG-PRO Anti-Clog Traction 127.97 Laser Crimson/White/Black
92 Nike Phantom Vision 2 Elite Dynamic Fit SG-PRO Anti-Clog Traction153.97 Laser Crimson/Black/Metallic Silver
93 Nike Phantom Venom Elite FG 140.97 Desert Sand/Black/Electric Green/Psychic Purple
94 Nike Mercurial Vapor 13 Elite AG-PRO 153.97 Black/Black
95 Nike Mercurial Vapor 13 Academy TF 60.47 Laser Crimson/Laser Crimson/Black
96 Nike Phantom Venom Academy IC 60.47 Laser Crimson/Black/Metallic Silver
97 Nike Tiempo Legend 8 Elite FG 121.97 Black/White/Black
98 Nike Tiempo Legend 8 Pro FG 73.97 Black/White/Black
99 Nike Phantom Vision Elite Dynamic Fit Anti-Clog SG-PRO 153.97 Dark Grey/Black/Bright Mango
100 Nike Tiempo Legend 8 Academy SG-PRO Anti-Clog Traction 60.47 Black/White/Black
101 Nike Phantom Vision Elite Dynamic Fit FG 147.47 Dark Grey/Black/Bright Mango
102 Nike PhantomVNM Academy SG-Pro Anti-Clog Traction 64.47 Black/Black
103 Nike Phantom Venom Elite SG-Pro Anti-Clog Traction 147.47 Laser Crimson/Black/Metallic Silver
104 Nike Tiempo Legend 8 Elite FG 132.97 Laser Crimson/White/Black
105 Nike Mercurial Vapor 13 Elite SG-PRO Anti-Clog Traction 147.47 Black/Black
106 Nike Phantom Venom Academy AG 60.47 Laser Crimson/Black/Metallic Silver
107 Nike Tiempo Legend 8 Pro FG 80.47 Laser Crimson/White/Black
108 Nike Phantom Venom Academy FG 60.47 Laser Crimson/Black/Metallic Silver
109 Nike Phantom Venom Elite FG 153.97 Laser Crimson/Black/Metallic Silver
110 Nike Mercurial Vapor 13 Elite MDS FG 167.97 Blue Void/White/Black/Metallic Silver
111 Nike Mercurial Superfly 7 Academy SG-PRO Anti-Clog Traction 60.47 Laser Crimson/Laser Crimson/Black
112 Nike Mercurial Superfly 7 Elite SG-PRO Anti-Clog Traction 167.97 Blue Hero/Volt/Obsidian/White
113 Nike Tiempo Legend 8 Elite SG-PRO Anti-Clog Traction 127.97 Black/White/Black
114 Nike Phantom Venom Academy FG 60.47 Black/Black
115 Nike Mercurial Vapor 13 Academy SG-PRO Anti-Clog Traction 64.47 Laser Crimson/Laser Crimson/Black
116 Nike Mercurial Vapor 13 Elite MDS AG-PRO 167.97 Blue Void/White/Black/Metallic Silver
117 Nike Phantom Vision 2 Academy Dynamic Fit AG 55.97 Laser Crimson/Black/Metallic Silver
118 Nike Tiempo Legend 8 Academy MG 60.47 Black/White/Black
119 Nike Phantom Vision 2 Pro Dynamic Fit FG 90.97 Laser Crimson/Black/Metallic Silver
120 Nike Mercurial Vapor 13 Academy SG-PRO Anti-Clog Traction 64.47 Blue Hero/Obsidian/White
121 Nike Mercurial Vapor 13 Pro AG-PRO 80.47 Black/Cool Grey/Metallic Cool Grey
122 Nike Phantom Vision Pro Dynamic Fit FG 83.47 Dark Grey/Black/Bright Mango
123 Nike Phantom Vision 2 Pro Dynamic Fit AG-PRO 90.97 Laser Crimson/Black/Metallic Silver
124 Nike Mercurial Vapor 13 Pro TF 67.47 White/Black/Laser Crimson
125 Nike Premier II Anti-Clog Traction SG-PRO 67.47 University Red/Laser Crimson/Black
126 Nike Mercurial Vapor 13 Academy TF 60.47 Blue Hero/Obsidian/White
127 Nike Tiempo Legend 8 Academy AG 60.47 Laser Crimson/White/Black
128 Nike Phantom Vision 2 Academy Dynamic Fit IC 56.97 Black/Black
129 Nike Mercurial Vapor 13 Pro MDS IC 67.47 Blue Void/White/Black/Metallic Silver
130 Nike Mercurial Vapor 13 Pro IC 67.47 Laser Crimson/Laser Crimson/Black
131 Nike React Tiempo Legend 8 Pro IC 67.47 Laser Crimson/White/Black
132 Nike Tiempo Legend 8 Pro AG-PRO 80.47 Laser Crimson/White/Laser Crimson/Black
133 Nike Tiempo Legend 8 Academy IC 60.47 Laser Crimson/White/Black
134 Nike Mercurial Superfly 7 Elite MDS SG-PRO Anti-Clog Traction166.47 Blue Void/White/Black/Barely Volt
135 Nike Tiempo Legend 8 Academy MG 60.47 Laser Crimson/White/Black
136 Nike Mercurial Vapor 13 Pro IC 67.47 Blue Hero/Obsidian/White
137 Nike React Phantom Vision 2 Pro Dynamic Fit IC 73.47 Laser Crimson/Black/Metallic Silver
138 Nike Phantom Vision 2 Academy Dynamic Fit SG-PRO Anti-Clog Traction60.47 Laser Crimson/Black/Metallic Silver
139 Nike Tiempo Legend 8 Pro TF 67.47 Black/Black
140 Nike Mercurial Vapor 13 Academy IC 60.47 Blue Hero/Obsidian/White
141 Nike Tiempo Legend 8 Pro SG 57.97 Black/Black
142 Nike Premier II Anti-Clog Traction SG-PRO 73.47 Black/Volt/White
143 Nike Phantom Venom Academy TF 60.47 Laser Crimson/Black/Metallic Silver
144 Nike Mercurial Vapor 13 Academy IC 60.47 Laser Crimson/Laser Crimson/Black
145 Nike Phantom Vision 2 Club Dynamic Fit IC 54.97 Laser Crimson/Black/Metallic Silver
146 Nike Tiempo Legend 8 Academy AG 60.47 Black/White/Black
147 Nike Mercurial Superfly 7 Elite MDS AG-PRO 159.97 Blue Void/White/Black/Metallic Silver
148 Nike Mercurial Vapor 13 Elite SG-PRO Anti-Clog Traction 160.97 Black/Matte Silver/Metallic Cool Grey/Black
149 Nike Phantom Venom Pro AG-Pro 80.47 Laser Crimson/Black/Black/Metallic Silver
150 Nike Tiempo Legend 8 Elite SG-PRO Anti-Clog Traction 127.97 Black/Blue Hero/Black
151 Nike Mercurial Vapor 13 Pro Neymar Jr. AG-PRO 87.47 White/Racer Blue/Volt/Black
152 Nike Premier II FG 63.97 Obsidian/Black/Light Current Blue
153 Nike Phantom Vision Academy Dynamic Fit TF 56.97 Volt/Volt/White
154 Nike PhantomVNM Academy SG-Pro Anti-Clog Traction 64.47 Bright Mango/Orange Pulse/Anthracite/White
155 Nike Phantom Venom Academy FG 60.47 Bright Mango/Orange Pulse/Anthracite/White
156 Nike Phantom Venom Elite FG 153.97 Volt/Volt/Barely Volt/Obsidian
157 Nike Phantom Venom Academy TF 60.47 Bright Mango/Orange Pulse/Anthracite/White
158 Nike Mercurial Superfly 7 Academy TF 56.97 Blue Hero/Obsidian/White
159 Nike Phantom Venom Elite SG-Pro Anti-Clog Traction 147.47 Black/Volt/Black
160 Nike Mercurial Superfly 7 Pro AG-PRO 83.47 Black/Cool Grey/Metallic Cool Grey
161 Nike Tiempo Legend 8 Elite FG 132.97 Black/Blue Hero/Black
162 Nike Phantom Vision Academy Dynamic Fit MG 56.97 Volt/Volt/White
163 Nike Tiempo Legend 8 Elite AG-PRO 121.97 Black/Blue Hero/Black
164 Nike Superfly 6 Elite FG 147.47 Hyper Crimson/White/Metallic Silver/Black
165 Nike Phantom Vision Elite Dynamic Fit Anti-Clog SG-PRO 153.97 Volt/Barely Volt/White
166 Nike Mercurial Vapor 13 Elite MDS SG-PRO Anti-Clog Traction 159.97 Blue Void/White/Black/Metallic Silver
167 Nike Mercurial Vapor 13 Pro FG 73.97 Black/Cool Grey/Metallic Cool Grey
168 Nike Mercurial Superfly 7 Academy SG-PRO Anti-Clog Traction 60.47 Blue Hero/Obsidian/White
169 Nike Mercurial Vapor 13 Academy MG 60.47 Blue Hero/Obsidian/White
170 Nike PhantomVSN Academy Dynamic Fit SG-Pro Anti-Clog Traction60.47 Volt/Volt/White
171 Nike Phantom Venom Pro FG 73.97 Volt/Volt/Obsidian
172 Nike PhantomVSN Academy Dynamic Fit SG-Pro Anti-Clog Traction60.47 Dark Grey/Black/Black/Bright Mango
173 Nike Mercurial Vapor 13 Academy MDS SG-PRO Anti-Clog Traction56.97 Blue Void/White/Black/Metallic Silver
174 Nike PhantomVNM Elite Tech Craft FG 153.97 Black/Black/Black
175 Nike Phantom Venom Academy AG 60.47 Bright Mango/Orange Pulse/Anthracite/White
176 Nike React Tiempo Legend 8 Pro IC 67.47 Black/Blue Hero/Black
177 Nike Phantom Venom Academy IC 62.97 Volt/Volt/Obsidian
178 Nike Tiempo Legend 8 Pro SG 73.97 Black/Blue Hero/Black
179 Nike Premier II Anti-Clog Traction SG-PRO 67.47 Black/Black/Hyper Crimson
180 Nike Phantom Vision Academy Dynamic Fit IC 56.97 Volt/Volt/White
181 Nike Phantom Venom Pro AG-Pro 73.97 Volt/Volt/Obsidian
182 Nike Tiempo Legend 8 Academy SG-PRO Anti-Clog Traction 60.47 Black/Black
183 Nike Mercurial Superfly 7 Academy IC 56.97 Blue Hero/Obsidian/White
184 Nike Zoom Phantom Venom Pro TF 67.47 Volt/Volt/Obsidian
185 Nike Mercurial Superfly 6 Academy MG 63.47 Black/Black/Light Crimson/Black
186 Nike Zoom Phantom Venom Pro IC 67.47 Bright Mango/Orange Pulse/Anthracite/White
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