Python 博客园快速备份脚本

技术分享 4年前 (2022-09-04) 0 999+

鉴于有些小伙伴在寻找博客园迁移到个人博客的方案，本人针对博客园实现了一个自动备份脚本，可以快速将博客园中自己的文章备份成Markdown格式的独立文件，备份后的md文件可以直接放入到hexo博客中，快速生成自己的站点，而不需要自己逐篇文章迁移，提高了备份文章的效率。

首先第一步将博客园主题替换为codinglife默认主题，第二步登录到自己的博客园后台，然后选择博客备份，备份所有的随笔文章，如下所示：

备份出来以后将其命名为backup.xml，然后新建一个main.py脚本，以及一个blog目录，代码实现的原理是，解析xml格式并依次提取出文档内容，然后分别保存为markdown文件。

转存文章到MD: 写入备份脚本，代码如下所示，运行后即可自动转存文件到blog目录下，当运行结束后备份也就结束了。

# powerby: LyShark # blog: www.cnblogs.com/lyshark from bs4 import BeautifulSoup import requests, os,re  header = {"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) By LyShark CnblogsBlog Backup Script"}  # 获取文章,并转成markdown # blog: www.lyshark.com def GetMarkDown(xml_file):     con = open(xml_file, 'r', encoding='utf8').read()     # 每篇文章都在 <item> 标签里     items = re.findall("<item>.*?</item>", con, re.I | re.M | re.S)     ele2 = ['<title>(.+?)</title>', '<link>(.+?)</link>', '<description>(.+?)</description>']     # md_name = xml_file.split('.xml')[0] + '.md'     for item in items:         try:             title = re.findall(ele2[0], item, re.I | re.S | re.M)[0]             link = re.findall(ele2[1], item, re.I | re.S | re.M)[0]             des = re.findall(ele2[2], item, re.I | re.S | re.M)[0]             des = re.findall('<![CDATA[(.+?)]]>', des, re.I | re.S | re.M)[0]  # CDATA 里面放的是文章的内容             des = des.replace('~~~', "```")             lines = des.split('n')             with open("./blog/" + title.replace("/","") + ".md", mode='w+', encoding='utf8') as f:                 f.write("---n")                 f.write("title: '{}'n".format(title.replace("##","").replace("###","").replace("-","").replace("*","").replace("<br>","").replace(":","").replace("：","").replace(" ","").replace(" ","").replace("`","")))                 f.write("copyright: truen")                  setdate = "2018-12-27 00:00:00"                 try:                     # 读取时间                     response = requests.get(url=link, headers=header)                     print("读取状态: {}".format(response.status_code))                      if response.status_code == 200:                         bs = BeautifulSoup(response.text, "html.parser")                         ret = bs.select('span[id="post-date"]')[0]                         setdate = str(ret.text)                         pass                     else:                         f.write("date: '2018-12-27 00:00:00'n")                 except Exception:                     f.write("date: '2018-12-27 00:00:00'n")                     pass                  f.write("date: '{}'n".format(setdate))                  # description检测                 description_check = lines[0].replace("##","").replace("###","").replace("-","").replace("*","").replace("<br>","").replace(":","").replace("：","").replace(" ","").replace(" ","")                 if description_check == "":                     f.write("description: '{}'n".format("该文章暂无概述"))                 elif description_check == "```C":                     f.write("description: '{}'n".format("该文章暂无概述"))                 elif description_check == "```Python":                     f.write("description: '{}'n".format("该文章暂无概述"))                 else:                     f.write("description: '{}'n".format(description_check))                  print("[*] 时间: {} --> 标题: {}".format(setdate, title))                 f.write("tags: '{}'n".format("tags10245"))                 f.write("categories: '{}'n".format("categories10245"))                 f.write("---nn")                 f.write('%s' %des)                 f.close()         except Exception:             pass  if __name__ == "__main__":     GetMarkDown("backup.xml")

备份后的效果如下所示：

打开Markdown格式看一下，此处的标签和分类使用了一个别名，在备份下来以后，你可以逐个区域进行替换，将其替换成自己需要的分类类型即可。

转存图片到本地: 接着就是继续循环将博客中所有图片备份下来，同样新建一个image文件夹，并运行如下代码实现备份。

# powerby: LyShark # blog: www.cnblogs.com/lyshark from bs4 import BeautifulSoup import requests, os,re  header = {"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) By LyShark CnblogsBlog Backup Script"}  # 从备份XML中找到URL # blog: www.cnblogs.com/lyshark def GetURL(xml_file):     blog_url = []     con = open(xml_file, 'r', encoding='utf8').read()     items = re.findall("<item>.*?</item>", con, re.I | re.M | re.S)     ele2 = ['<title>(.+?)</title>', '<link>(.+?)</link>', '<description>(.+?)</description>']     for item in items:         title = re.findall(ele2[0], item, re.I | re.S | re.M)[0]         link = re.findall(ele2[1], item, re.I | re.S | re.M)[0]         print("标题: {} --> URL: {} ".format(title,link))         blog_url.append(link)     return blog_url  # 下载所有图片 # blog: www.lyshark.com def DownloadURLPicture(url):     params = {"encode": "utf-8"}     response = requests.get(url=url, params=params, headers=header)     # print("网页编码方式: {} -> {}".format(response.encoding,response.apparent_encoding))     context = response.text.encode(response.encoding).decode(response.apparent_encoding, "ignore")     try:         bs = BeautifulSoup(context, "html.parser")         ret = bs.select('div[id="cnblogs_post_body"] p img')         for item in ret:             try:                 img_src_path = item.get("src")                 img_src_name = img_src_path.split("/")[-1]                 print("[+] 下载图片: {} ".format(img_src_name))                 img_download = requests.get(url=img_src_path, headers=header, stream=True)                 with open("./image/" + img_src_name, "wb") as fp:                     for chunk in img_download.iter_content(chunk_size=1024):                         fp.write(chunk)             except Exception:                 print("下载图片失败: {}".format(img_src_name))                 pass     except Exception:         pass  if __name__ == "__main__":     url = GetURL("backup.xml")     for u in url:         DownloadURLPicture(u)

备份后的效果如下：