爬虫学习（二）：Requests库网络爬虫实战

喜欢ヅ旅行 2023-06-09 14:23 42阅读 0赞

## 目录 ##

1.京东商品页面的爬取  
2.亚马逊商品页面的爬取  
3.百度/360搜索关键词提交  
4.网络图片的爬取和存储  
5.IP地址归属地的自动查询

## 1.京东商品页面的爬取 ##

import requests
    
    url = 'https://item.jd.com/2967929.html'
    try:
        r = requests.get(url)
        r.raise_for_status()
        r.encoding = r.apparent_encoding
        print(r.text[:1000])
    except:
        print('爬取失败')

## 2.亚马逊商品页面的爬取 ##

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')

## 3.百度/360搜索关键词提交 ##

百度

import requests
    
    keyword = 'Python'
    url = 'https://www.baidu.com/s'
    try:
        kv = {'wd': keyword}
        r = requests.get(url, params = kv)
        print(r.request.url)
        r.raise_for_status()
        print(len(r.text))
    except:
        print('爬取失败')

360

import requests
    
    keyword = 'Python'
    url = 'https://www.so.com/s'
    try:
        kv = {'q': keyword}
        r = requests.get(url, params = kv)
        print(r.request.url)
        r.raise_for_status()
        print(len(r.text))
    except:
        print('爬取失败')

## 4.网络图片的爬取和存储 ##

import requests
    import os
    
    url = 'https://image.nationalgeograpgic.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')

## 5.IP地址归属地的自动查询 ##

import requests
    
    url = 'https://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')