python爬取网易云音乐热歌榜实例代码
首先找到要下载的歌曲排行榜的链接,这里用的是:
https://music.163.com/discover/toplist?id=3778678
然后更改你要保存的目录,目录要先建立好文件夹,例如我的是保存在D盘-360下载-网易云热歌榜文件夹内,就可以完成下载。
如果文件夹没有提前建好,会报错[Errno 2] No such file or directory。
代码实现:
from urllib import requestfrom bs4 import BeautifulSoupimport reimport requestsimport timeclass Music(object): def __init__(self, baseurl, path): head = { 'user-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36' } self.baseurl = baseurl self.headers = head self.path = path def main(self): html = self.askurl() bs4 = self.analysis(html) name1 = self.matching(bs4) self.save(name1) def askurl(self): req = request.Request(url=self.baseurl, headers=self.headers) response = request.urlopen(req) html = response.read().decode('utf-8') return html def analysis(self, html): soup = BeautifulSoup(html, 'html.parser') bs4 = soup.find_all('textarea') bs4 = str(bs4) return bs4 def matching(self, bs4): rule0 = re.compile(r’'name':'(.*?)','tns':[],'alias':[]’) name0 = re.findall(rule0, bs4) str = '' for i in name0: str = str + ',' + i str = str.replace('xa0', ' ') rule1 = re.compile(r’jpg,(.*?),(.*?)','id':(d*)’) name1 = re.findall(rule1, str) return name1 def save(self, name1): for j in name1: print('正在下载:' + j[1] + ' - ' + j[0] + '...') url = 'http://music.163.com/song/media/outer/url? - ' + j[0] + '.mp3', 'wb') as f:f.write(content) print(j[1] + ' - ' + j[0] + '下载完毕。n') time.sleep(0.5) returnif __name__ == '__main__': baseurl = 'https://music.163.com/discover/toplist?id=3778678' # 要爬取的热歌榜链接 path = 'D:/360下载/网易云热歌榜/' # 保存的文件目录 demo0 = Music(baseurl, path) demo0.main() print('下载完毕')
内容扩展:
Python3实战之爬虫抓取网易云音乐的热门评论
#!/usr/bin/env python3# -*- coding: utf-8 -*-import reimport urllib.requestimport urllib.errorimport urllib.parseimport jsondef get_all_hotSong(): #获取热歌榜所有歌曲名称和id url=’http://music.163.com/discover/toplist?id=3778678’ #网易云云音乐热歌榜url html=urllib.request.urlopen(url).read().decode(’utf8’) #打开url html=str(html) #转换成str pat1=r’<ul class='f-hide'><li><a href='https://www.haobala.com/song?id=d*?' rel='external nofollow' rel='external nofollow' >.*</a></li></ul>’ #进行第一次筛选的正则表达式 result=re.compile(pat1).findall(html) #用正则表达式进行筛选 result=result[0] #获取tuple的第一个元素 pat2=r’<li><a href='https://www.haobala.com/song?id=d*?' rel='external nofollow' rel='external nofollow' >(.*?)</a></li>’ #进行歌名筛选的正则表达式 pat3=r’<li><a href='https://www.haobala.com/song?id=(d*?)' rel='external nofollow' >.*?</a></li>’ #进行歌ID筛选的正则表达式 hot_song_name=re.compile(pat2).findall(result) #获取所有热门歌曲名称 hot_song_id=re.compile(pat3).findall(result) #获取所有热门歌曲对应的Id return hot_song_name,hot_song_iddef get_hotComments(hot_song_name,hot_song_id): url=’http://music.163.com/weapi/v1/resource/comments/R_SO_4_’ + hot_song_id + ’?csrf_token=’ #歌评url header={ #请求头部 ’User-Agent’:’Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36’} #post请求表单数据 data={’params’:’zC7fzWBKxxsm6TZ3PiRjd056g9iGHtbtc8vjTpBXshKIboaPnUyAXKze+KNi9QiEz/IieyRnZfNztp7yvTFyBXOlVQP/JdYNZw2+GRQDg7grOR2ZjroqoOU2z0TNhy+qDHKSV8ZXOnxUF93w3DA51ADDQHB0IngL+v6N8KthdVZeZBe0d3EsUFS8ZJltNRUJ’,’encSecKey’:’4801507e42c326dfc6b50539395a4fe417594f7cf122cf3d061d1447372ba3aa804541a8ae3b3811c081eb0f2b71827850af59af411a10a1795f7a16a5189d163bc9f67b3d1907f5e6fac652f7ef66e5a1f12d6949be851fcf4f39a0c2379580a040dc53b306d5c807bf313cc0e8f39bf7d35de691c497cda1d436b808549acc’} postdata=urllib.parse.urlencode(data).encode(’utf8’) #进行编码 request=urllib.request.Request(url,headers=header,data=postdata) reponse=urllib.request.urlopen(request).read().decode(’utf8’) json_dict=json.loads(reponse) #获取json hot_commit=json_dict[’hotComments’] #获取json中的热门评论 num=0 fhandle=open(’./song_comments’,’a’) #写入文件 fhandle.write(hot_song_name+’:’+’n’) for item in hot_commit: num+=1 fhandle.write(str(num)+’.’+item[’content’]+’n’) fhandle.write(’n==============================================nn’) fhandle.close()hot_song_name,hot_song_id=get_all_hotSong() #获取热歌榜所有歌曲名称和idnum=0while num < len(hot_song_name): #保存所有热歌榜中的热评 print(’正在抓取第%d首歌曲热评...’%(num+1)) get_hotComments(hot_song_name[num],hot_song_id[num]) print(’第%d首歌曲热评抓取成功’%(num+1)) num+=1
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