使用BS4爬取个人博客内容以及整理个人博客

爬取个人博客内容

import requests
from bs4 import BeautifulSoup

def get_content(url,):
    try:
        user_agent = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.109 Safari/537.36"
        response = requests.get(url,  headers={'User-Agent': user_agent})
        response.raise_for_status()   					# 如果返回的状态码不是200， 则抛出异常;
        response.encoding = response.apparent_encoding  # 判断网页的编码格式， 便于respons.text知道如何解码;
    
    except Exception as e:
        print("爬取错误")
    else:
        print(response.url)
        print("爬取成功!")
        return  response.content

def parser_content(htmlContent):
    # 实例化soup对象， 便于处理；
    soup = BeautifulSoup(htmlContent, 'html.parser')
    # 提取页面的头部信息， 解决乱码问题
    headObj = soup.head
    # 提取需要的内容;
    divObj = soup.find_all('div', class_="blog-content-box")[0]
    scriptObj = soup.script
    with open('doc/csdn.html', 'w') as f:
        # 写入头部信息(指定编码格式和标题)
        f.write(str(headObj))
        # 写入博客正文;
        f.write(str(divObj))
        print("下载成功......")
if __name__ == '__main__':
    url = "https://blog.csdn.net/dodobibibi/article/details/87794707"
    content = get_content(url)
    parser_content(content)

个人博客整理

import requests
from bs4 import BeautifulSoup
import re

def get_content(url):
    try:
        user_agent = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.109 Safari/537.36"
        response = requests.get(url,  headers={'User-Agent': user_agent})
        response.raise_for_status()   # 如果返回的状态码不是200， 则抛出异常;
        response.encoding = response.apparent_encoding  # 判断网页的编码格式， 便于respons.text知道如何解码;
    except Exception as e:
        print("爬取错误")
    else:
        print(response.url)
        print("爬取成功!")
        return  response.content

def parser_content(htmlContent):
    # 实例化soup对象， 便于处理；
    soup = BeautifulSoup(htmlContent, 'html.parser')
    # 1). 获取每个博客的大盒子： 特征：div标签, class名称一致article-item-box csdn-tracking-statistics
    #  

    divObjs = soup.find_all('div', class_="article-item-box")
    # 2). 依次遍历每一个div标签，获取博客标题
    # 博客标题的特征：h4里面的a标签里面的内容
    # 去掉默认的广告，留下个人的博客内容

    for  divObj in divObjs[1:]:
        # **2-1. 获取博客标题：去掉原创或者转载的信息，只需要博客名称；
        title = divObj.h4.a.get_text().split()[1]
        # **2-2. 获取博客链接，也就是获取a链接中href对应的值；
        blogUrl = divObj.h4.a.get('href')
        global  bloginfo
        # 将爬取的所有内容保存到变量中[(blogtitle, blogurl)]
        bloginfo.append((title, blogUrl))

if __name__ == '__main__':
    blogPage = 3
    # 全局变量，用于保存所有博客信息；
    bloginfo = []
    for page in range(1, blogPage+1):
        url = "https://blog.csdn.net/dodobibibi/article/list/%s" %(page)
        content = get_content(url)
        parser_content(content)
        print("第%d页整理结束...." %(page))

    with open('doc/myblog.md', 'a') as f:
        for index, info in enumerate(bloginfo[::-1]):
            f.write('- 第%d篇博客: [%s](%s)\n' %(index+1, info[0], info[1]))
    print("完成.....")