使用Python下载QQ音乐歌曲

有些时候我们需要下载一些音乐文件到本地，比较操蛋是必须要付费，所以写了一个下载器用！！

开发工具

Python版本：3.7相关模块：

requestsreurllibosffmpeg

QQ音乐网站数据请求url

第一个接口需要根据歌曲名构造完整链接来搜索需要下载的歌曲信息；

第二个接口需要根据第一个接口返回的信息来构造完整链接来获取歌曲下载地址的部分信息；

第三个接口即为歌曲下载地址，需要根据前两个接口获取的信息来构造完整链接。

1. self.searchUrl ='https://c.y.qq.com/soso/fcgi-bin/client_search_cp?ct=24&qqmusic_ver=1298&new_json=1&remoteplace=txt.yqq.top&searchid=34725291680541638&t=0&aggr=1&cr=1&catZhida=1&lossless=0&flag_qc=0&p=1&n=20&w={}&g_tk=5381&jsonpCallback=MusicJsonCallback703296236531272&loginUin=0&hostUin=0&format=jsonp&inCharset=utf8&outCharset=utf-8¬ice=0&platform=yqq&needNewCode=0'

2. self.fcg_url = 'https://c.y.qq.com/base/fcgi-bin/fcg_music_express_mobile3.fcg?g_tk=5381&jsonpCallback=MusicJsonCallback9239412173137234&loginUin=0&hostUin=0&format=json&inCharset=utf8&outCharset=utf-8¬ice=0&platform=yqq&needNewCode=0&cid=205361747&callback=MusicJsonCallback9239412173137234&uin=0&songmid={}&filename={}.m4a&guid=8208467632'

3. self.downloader_url = 'http://dl.stream.qqmusic.qq.com/{}.m4a?vkey={}&guid=8208467632&uin=0&fromtag=66'

详细代码（内含有完整注释）

1. import requests

2. import re

3. import urllib

4. import os

6. #使用pypud 需要依赖库  ffmpeg

7. from pydub import AudioSegment

8. class QQDownLoader(object):

9.    def __init__(self):

10.        self.headers = {

11.            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.146 Safari/537.36'

12.        }

14.        #搜索需要下载的歌曲信息

15.        self.searchUrl ='https://c.y.qq.com/soso/fcgi-bin/client_search_cp?ct=24&qqmusic_ver=1298&new_json=1&remoteplace=txt.yqq.top&searchid=34725291680541638&t=0&aggr=1&cr=1&catZhida=1&lossless=0&flag_qc=0&p=1&n=20&w={}&g_tk=5381&jsonpCallback=MusicJsonCallback703296236531272&loginUin=0&hostUin=0&format=jsonp&inCharset=utf8&outCharset=utf-8¬ice=0&platform=yqq&needNewCode=0'

16.        self.fcg_url = 'https://c.y.qq.com/base/fcgi-bin/fcg_music_express_mobile3.fcg?g_tk=5381&jsonpCallback=MusicJsonCallback9239412173137234&loginUin=0&hostUin=0&format=json&inCharset=utf8&outCharset=utf-8¬ice=0&platform=yqq&needNewCode=0&cid=205361747&callback=MusicJsonCallback9239412173137234&uin=0&songmid={}&filename={}.m4a&guid=8208467632'

17.        self.downloader_url = 'http://dl.stream.qqmusic.qq.com/{}.m4a?vkey={}&guid=8208467632&uin=0&fromtag=66'

19.    def getSingInfo(self,name,num):

20.        print('正在获取歌曲信息。。。')

21.        #查询的歌的名字

22.        singurl = self.searchUrl.format(name)

23.        singData = requests.get(singurl,headers = self.headers).text

24.        self.analysisData(singData,num)

26.    def analysisData(self,res,num):

27.        # media_mid

28.        media_mid_temp = re.findall(''media_mid':'(.*?)'', res)

29.        media_mid = []

30.        for i in range(len(media_mid_temp)):

31.            media_mid.append('C400' + media_mid_temp[i])

32.        # songmid

33.        songmid = re.findall(''lyric_hilight':'.*?','mid':'(.*?)','mv'', res)

34.        # singer

35.        singer_temp = re.findall(''singer':\[.*?\]', res)

36.        singer = []

37.        for s in singer_temp:

38.            singer.append(re.findall(''name':'(.*?)'', s)[0])

39.        # songname

40.        songname = re.findall('},'name':'(.*?)','newStatus'', res)

42.        # print(media_mid)

43.        # print(songmid)

44.        # print(singer)

45.        # print(songname)

46.        self.getDownloaderUrl(media_mid,songmid,singer,songname,num)

48.    def getDownloaderUrl(self,media_mid,songmid,singer,songname,num):

49.        urls = []

50.        songname_keep = []

51.        singer_keep = []

52.        for m in range(len(media_mid)):

53.            try:

54.                fcg_res = requests.get(self.fcg_url.format(songmid[m], media_mid[m]), headers=self.headers)

55.                # print(fcg_res.text)

56.                vkey = re.findall(''vkey':'(.*?)'', fcg_res.text)[0]

58.                urls.append(self.downloader_url.format(media_mid[m], vkey))

59.                songname_keep.append(songname[m])

60.                singer_keep.append(singer[m])

61.            except:

62.                print('[Warning]:One song lost...')

63.            # time.sleep(0.5)

64.        # print(songname_keep)

65.        # print(singer_keep)

66.        self.downloadMp3(urls,songname_keep,singer_keep,num)

68.    def downloadMp3(self,urls,songname_keep,singer_keep,num=1):

69.        # print(urls)

71.        if num > len(urls):

72.            print('[Warning]:Only find %d songs...' % len(urls))

73.            num = len(urls)

74.        if not os.path.exists('./MP3'):

75.            os.mkdir('./MP3')

76.        for n in range(num):

77.            print('正在下载第 %d 第一首歌...' % (n+1))

78.            filepath = './MP3/{}'.format(songname_keep[n]+'_'+singer_keep[n]+'.m4a')

79.            urllib.request.urlretrieve(urls[n], filepath)

80.            self.changeFormate(filepath)

82.        print('下载完成')

84.    def changeFormate(self,filepath):

85.        print('正在转码。。。')

86.        '''

87.        mp3与wav格式进行互转

88.        '''

89.        # song = AudioSegment.from_mp3(filepath)

90.        # song.export('now.wav', format='wav')

92.        # 讲m4a 转成 MP3

93.        os.system('ffmpeg -i ' + filepath + ' ' + filepath[:filepath.rfind('.')] + '.mp3')

95.        os.remove(filepath)

96.    def run(self,name,num):

97.        self.getSingInfo(name,num)

99. qq = QQDownLoader()

100. qq.run('爱你',1)