目录
代码思路： 1.确定目标需求:将csdn文章内容保存成 HTML、PDF、md格式 - 1.1首先保存为html格式：获取列表页中所有的文章ur1地址，请求文章ur1地址获取我们需要的文章内容 - 1.2 通过 wkhtmitopdf.exe把html文件转换成PDF文件 - 1.3 通过 wkhtmitopdf.exe把html文件转换成md文件 2.请求ur1获取网页源代码 3.解析数据，提取自己想要内容 4.保存数据 5.转换数据类型把HTML转换成PDF、md文件此项目可以直接将专栏内的所有文章获取到继而转换为三种格式（html,pdf,md）
一、获取专栏地址
在此我使用 毕设项目 专栏 作为演示
原链接是这样的
简写成这样也可以：
https://blog.csdn.net/m0_54925305/category_11702151.html
self.url = 'https://blog.csdn.net/m0_54925305/category_11702151.html'
二、下载转换工具
下载完后直接放在本地，可以简单理解为驱动程序
config = pdfkit.configuration(wkhtmltopdf=r'D:\wkhtmltox\bin\wkhtmltopdf.exe')
三、创建HTML MD PDF 文件夹
注意文件夹需与py文件创建在同级目录下
四、启动程序
控制台打印如下：
效果如下：
五、源代码
# -*- coding: utf-8 -*-
# @Time : 2022/9/1 9:36
# @Author : Tuomasi
# @File : convert.py
"""
代码思路：
1.确定目标需求:将csdn文章内容保存成 HTML、PDF、md格式
- 1.1首先保存为html格式：获取列表页中所有的文章ur1地址，请求文章ur1地址获取我们需要的文章内容
- 1.2 通过 wkhtmitopdf.exe把html文件转换成PDF文件
- 1.3 通过 wkhtmitopdf.exe把html文件转换成md文件
2.请求ur1获取网页源代码
3.解析数据，提取自己想要内容
4.保存数据
5.转换数据类型把HTML转换成PDF、md文件
"""
html_str = """
<!DOCTYPE HTML>
<HTML lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
{article}
</body>
</HTML>
"""
import requests
import parsel
import pdfkit # 用来将html转为pdf
import re
import os
import urllib.parse
from bs4 import BeautifulSoup
import html2text # 用来将html转换为md
import random
# user_agent库：每次执行一次访问随机选取一个 user_agent，防止过于频繁访问被禁止
USER_AGENT_LIST = [
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1",
"Mozilla/5.0 (X11; CrOS i686 2268.111.0) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.6 (KHTML, like Gecko) Chrome/20.0.1092.0 Safari/536.6",
"Mozilla/5.0 (Windows NT 6.2) AppleWebKit/536.6 (KHTML, like Gecko) Chrome/20.0.1090.0 Safari/536.6",
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; 360SE)",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.1 Safari/536.3",
"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.1 Safari/536.3",
"Mozilla/5.0 (Windows NT 6.2) AppleWebKit/536.3 (KHTML, like Gecko) Chrome/19.0.1061.0 Safari/536.3",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.24 (KHTML, like Gecko) Chrome/19.0.1055.1 Safari/535.24",
"Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/535.24 (KHTML, like Gecko) Chrome/19.0.1055.1 Safari/535.24"
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.82 Safari/537.36"
]
class CSDNSpider():
def __init__(self):
self.url = 'https://blog.csdn.net/m0_54925305/category_11702151.html'
self.headers = {
'user-agent': random.choice(USER_AGENT_LIST)
}
def send_request(self, url):
response = requests.get(url=url, headers=self.headers)
response.encoding = "utf-8"
if response.status_code == 200:
return response
def parse_content(self, reponse):
html = reponse.text
selector = parsel.Selector(html)
href = selector.css('.column_article_list a::attr(href)').getall()
name = 00
for link in href:
print(link)
name = name + 1
# 对文章的url地址发送请求
response = self.send_request(link)
if response:
self.parse_detail(response, name)
def parse_detail(self, response, name):
html = response.text
# print(HTML)
selector = parsel.Selector(html)
title = selector.css('#articleContentId::text').get()
# content = selector.css('#content_views').get()
# 由于这里使用parsel拿到的网页文件，打开会自动跳转到csdn首页，并且不能转为pdf，就想在这里用soup
soup = BeautifulSoup(html, 'lxml')
content = soup.find('div', id="article_content",
class_="article_content clearfix" or "htmledit_views") # class_="htmledit_views"
# print(content)
# print(title, content)
html = html_str.format(article=content)
self.write_content(html, title)
def write_content(self, content, name):
html_path = "HTML/" + str(self.change_title(name)) + ".HTML"
pdf_path = "PDF/" + str(self.change_title(name)) + ".PDF"
md_path = "MD/" + str(self.change_title(name)) + ".md"
# 将内容保存为html文件
with open(html_path, 'w', encoding="utf-8") as f:
f.write(content)
print("正在保存", name, ".HTML")
# 将html文件转换成PDF文件
config = pdfkit.configuration(wkhtmltopdf=r'D:\wkhtmltox\bin\wkhtmltopdf.exe')
pdfkit.from_file(html_path, pdf_path, configuration=config)
print("正在保存", name, ".PDF")
# os.remove(html_path)
# 将html文件转换成md格式
html_text = open(html_path, 'r', encoding='utf-8').read()
markdown = html2text.html2text(html_text)
with open(md_path, 'w', encoding='utf-8') as file:
file.write(markdown)
print("正在保存", name, ".md")
def change_title(self, title):
mode = re.compile(r'[\\\/\:\?\*\"\<\>\|\!]')
new_title = re.sub(mode, '_', title)
return new_title
def start(self):
response = self.send_request(self.url)
if response:
self.parse_content(response)
if __name__ == '__main__':
csdn = CSDNSpider()
csdn.start()
