python爬取網易雲音樂熱歌榜例項程式碼
阿新 • • 發佈:2020-08-07
首先找到要下載的歌曲排行榜的連結,這裡用的是:
https://music.163.com/discover/toplist?id=3778678
然後更改你要儲存的目錄,目錄要先建立好資料夾,例如我的是儲存在D盤-360下載-網易雲熱歌榜資料夾內,就可以完成下載。
如果資料夾沒有提前建好,會報錯[Errno 2] No such file or directory。
程式碼實現:
from urllib import request from bs4 import BeautifulSoup import re import requests import time class 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("正在下載:" + j[1] + " - " + j[0] + "...") url = "http://music.163.com/song/media/outer/url?id=" + j[2] content = requests.get(url=url,headers=self.headers).content with open(self.path + j[1] + " - " + j[0] + ".mp3","wb") as f: f.write(content) print(j[1] + " - " + j[0] + "下載完畢。\n") time.sleep(0.5) return if __name__ == "__main__": baseurl = "https://music.163.com/discover/toplist?id=3778678" # 要爬取的熱歌榜連結 path = "D:/360下載/網易雲熱歌榜/" # 儲存的檔案目錄 demo0 = Music(baseurl,path) demo0.main() print("下載完畢")
內容擴充套件:
Python3實戰之爬蟲抓取網易雲音樂的熱門評論
#!/usr/bin/env python3 # -*- coding: utf-8 -*- import re import urllib.request import urllib.error import urllib.parse import json def get_all_hotSong(): #獲取熱歌榜所有歌曲名稱和id url='http://music.163.com/discover/toplist?id=3778678' #網易云云音樂熱歌榜url html=urllib.request.urlopen(url).read().decode('utf8') #開啟url html=str(html) #轉換成str pat1=r'<ul class="f-hide"><li><a href="/song\?id=\d*?" rel="external nofollow" rel="external nofollow" >.*</a></li></ul>' #進行第一次篩選的正則表示式 result=re.compile(pat1).findall(html) #用正則表示式進行篩選 result=result[0] #獲取tuple的第一個元素 pat2=r'<li><a href="/song\?id=\d*?" rel="external nofollow" rel="external nofollow" >(.*?)</a></li>' #進行歌名篩選的正則表示式 pat3=r'<li><a href="/song\?id=(\d*?)" rel="external nofollow" >.*?</a></li>' #進行歌ID篩選的正則表示式 hot_song_name=re.compile(pat2).findall(result) #獲取所有熱門歌曲名稱 hot_song_id=re.compile(pat3).findall(result) #獲取所有熱門歌曲對應的Id return hot_song_name,hot_song_id def 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=' #歌評url header={ #請求頭部 '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請求表單資料 data={'params':'zC7fzWBKxxsm6TZ3PiRjd056g9iGHtbtc8vjTpBXshKIboaPnUyAXKze+KNi9QiEz/IieyRnZfNztp7yvTFyBXOlVQP/JdYNZw2+GRQDg7grOR2ZjroqoOU2z0TNhy+qDHKSV8ZXOnxUF93w3DA51ADDQHB0IngL+v6N8KthdVZeZBe0d3EsUFS8ZJltNRUJ','encSecKey':'4801507e42c326dfc6b50539395a4fe417594f7cf122cf3d061d1447372ba3aa804541a8ae3b3811c081eb0f2b71827850af59af411a10a1795f7a16a5189d163bc9f67b3d1907f5e6fac652f7ef66e5a1f12d6949be851fcf4f39a0c2379580a040dc53b306d5c807bf313cc0e8f39bf7d35de691c497cda1d436b808549acc'} postdata=urllib.parse.urlencode(data).encode('utf8') #進行編碼 request=urllib.request.Request(url,headers=header,data=postdata) reponse=urllib.request.urlopen(request).read().decode('utf8') json_dict=json.loads(reponse) #獲取json hot_commit=json_dict['hotComments'] #獲取json中的熱門評論 num=0 fhandle=open('./song_comments','a') #寫入檔案 fhandle.write(hot_song_name+':'+'\n') for item in hot_commit: num+=1 fhandle.write(str(num)+'.'+item['content']+'\n') fhandle.write('\n==============================================\n\n') fhandle.close() hot_song_name,hot_song_id=get_all_hotSong() #獲取熱歌榜所有歌曲名稱和id num=0 while num < len(hot_song_name): #儲存所有熱歌榜中的熱評 print('正在抓取第%d首歌曲熱評...'%(num+1)) get_hotComments(hot_song_name[num],hot_song_id[num]) print('第%d首歌曲熱評抓取成功'%(num+1)) num+=1
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