实例1:京东商品爬取
import requests
url = "https://item.jd.com/3739097.html"
try:
r = requests.get(url)
r.raise_for_status()
r.encoding = r.apparent_encoding
pring(r.text[:1000])
except:
print("爬取失败")
实例2:亚马逊商品信息爬取
import requests
url = "https://www.amazon.cn/gp/product/B01M8L5Z3Y"
try:
kv = {'user-agent':'Mozilla-5.0'}
r = requests.get(url, headers = kv)
r.raise_for_status()
r.encoding = r.apparent_encoding
print(r.text[1000:2000])
except:
print("爬取失败")
实例3:百度、360搜索关键词提交
import requests
keyword = 'Python'
try:
kv = {'wd':keyword} #360搜索:'wd'→'q'
r = requests.get("http://www.baidu.com/s",params = kv)
print(r.request.url)
r.raise_for_status()
print(len(r.text))
except:
print("爬取失败")
实例4:网络图片的爬取和存储
网络图片链接的格式
http://www.example.com/picture.jpg
import requests
import os
url = "http://image.nationalgeographic.com/cn/2017/0211/20170211061910157.jpg"
root = "D://pics//"
path = root + url.split('/')[-1]
try:
if not os.path.exists(root):
os.mkdir(root)
if not os.path.exists(path):
r = requests.get(url)
with open(path, 'wb') as f:
f.write(r.content)
f.close()
print("文件保存成功")
else:
print("文件已存在")
except:
print("爬取失败")
实例5:IP地址归属地的查询
http://m.i8138.com/ip.asp?ip=ipaddress
import requests
url = "http://m.ip138.com/ip.asp?ip="
try:
r = requests.get(url + '202.204.80.112')
r.raise_for_status()
r.encoding = r.apparent_encoding
print(r.text[-500:])
except:
print("爬取失败")