爬取spa网站与ssr网站的区别

前言

在练习爬虫的时候不清楚spa与ssr网站的区别，都使用bs4直接解析网页的html，结果ssr网站输出结果，spa网站却没有输出结果，特此记录
ssr网站：https://ssr1.scrape.center/page/1

spa网站：https://spa1.scrape.center/page/1

页面解析的代码

from email import header
import requests
from bs4 import BeautifulSoup

# url = "https://spa1.scrape.center/page/"              #can't get
url = "https://ssr1.scrape.center/page/"               #get success
pageIndex = 0

header = {
    "User-Agent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:105.0) Gecko/20100101 Firefox/105.0"
}

for i in range(10):
    pageIndex = pageIndex+1
    response = requests.get(url=url+str(pageIndex),headers=header)
    soup = BeautifulSoup(response.text,'html.parser')
    lists = soup.find_all('h2',class_='m-b-sm')
    for list in lists:
        print(list.string)

spa网站与ssr网站的区别

参考大佬的文章：
https://www.jianshu.com/p/fcb98533bc18

尝试获取xhr链接中的数据

F12打开控制台，发现刷新页面时spa网站会有xhr数据

import requests
from bs4 import BeautifulSoup

url = "https://spa1.scrape.center/api/movie/?limit=10&offset="
# url = "https://spa1.scrape.center/page/"              #can't get
# url = "https://ssr1.scrape.center/page/"               #get success
pageIndex = 0

header = {
    "User-Agent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:105.0) Gecko/20100101 Firefox/105.0"
}

response = requests.get(url=url+str(pageIndex),headers=header)
print(respons)

发现可以获得响应中的数据

使用json将字符串转化为字典格式

import requests
from bs4 import BeautifulSoup
import json

url = "https://spa1.scrape.center/api/movie/?limit=10&offset="
# url = "https://spa1.scrape.center/page/"              #can't get
# url = "https://ssr1.scrape.center/page/"               #get success
pageIndex = 0

header = {
    "User-Agent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:105.0) Gecko/20100101 Firefox/105.0"
}

response = requests.get(url=url+str(pageIndex),headers=header)
# print(response.text)

# 转化为字典格式
data = json.loads(response.text)

print(type(data))

over:可以成功像访问字典一样访问数据了！

import requests
from bs4 import BeautifulSoup
import json

url = "https://spa1.scrape.center/api/movie/?limit=10&offset="
# url = "https://spa1.scrape.center/page/"              #can't get
# url = "https://ssr1.scrape.center/page/"               #get success
pageIndex = 0

header = {
    "User-Agent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:105.0) Gecko/20100101 Firefox/105.0"
}

response = requests.get(url=url+str(pageIndex),headers=header)
# print(response.text)

data = json.loads(response.text)

print(data['results'][1]['name'])