在开始之前我们需要用到这几个api

1. https://music.163.com/api/playlist/detail?id=歌单的id // 获取歌单api
2. https://music.163.com/song/media/outer/url?id=歌曲的id.mp3 // 歌曲链接
3. https://music.163.com/api/song/media?id=歌曲的id // 歌词

更多的网易云音乐api，可以参考这个文档，它帮我们整理了非常完整的api接口[https://binaryify\.github\.io/NeteaseCloudMusicApi/\#/\]\(https://binaryify\.github\.io/NeteaseCloudMusicApi/\#/\)

准备工作完成后，开始进入进入主题：

直接对 https://music.163.com/api/playlist/detail?id=2161739123，进行访问可以看到返回的json内容； 可自行根据自己需要的字段进行组织。我把获取这个api的内容进行了封装

const playlist = async (id) => {
    return Axios.get('https://music.163.com/api/playlist/detail?id=' + id).then(async (res) => {
        let result = res.data.result;
        let tracks = result.tracks;
        let arr = tracks.map((item) => {
            return {
                id: item.id,
                src: `https://music.163.com/song/media/outer/url?id=${item.id}.mp3`, // 此处为歌曲链接
                name: item.name,
                singer: item.artists[0].name,
                time: item.duration // 自行对时间进行格式化处理
            };
        });
        return {
            coverImgUrl: (result.coverImgUrl && result.coverImgUrl.replace('http:', '')) || '',
            tracks: arr,
            name: result.name,
            createTime: result.createTime,
            description: result.description,
        };
    });
};

返回字段详解：

{ coverImgUrl: 歌单的封面,  tracks: 歌曲列表,  name: 歌单的名称,  createTime: 创建日期,  description: 描述 }

接着，对歌词进行获取函数封装

// 获取网易云歌曲歌词
const getLyric = async (id) => {
    return Axios.post(`https://music.163.com/api/song/media?id=` + id, {
        Referer: "https://music.163.com",
        Cookie: "appver=1.5.2",
        "Content-Type": "application/x-www-form-urlencoded",
        "User-Agent": randomUserAgent()
    }).then(_ => _.data.lyric);
}; 

这里用到了一个模拟随机请求头的函数；如下

function randomUserAgent() {
    const userAgentList = [
        "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36",
        "Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1",
        "Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1",
        "Mozilla/5.0 (Linux; Android 5.0; SM-G900P Build/LRX21T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Mobile Safari/537.36",
        "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Mobile Safari/537.36",
        "Mozilla/5.0 (Linux; Android 5.1.1; Nexus 6 Build/LYZ28E) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Mobile Safari/537.36",
        "Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_2 like Mac OS X) AppleWebKit/603.2.4 (KHTML, like Gecko) Mobile/14F89;GameHelper",
        "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.1.1 Safari/603.2.4",
        "Mozilla/5.0 (iPhone; CPU iPhone OS 10_0 like Mac OS X) AppleWebKit/602.1.38 (KHTML, like Gecko) Version/10.0 Mobile/14A300 Safari/602.1",
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
        "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:46.0) Gecko/20100101 Firefox/46.0",
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:46.0) Gecko/20100101 Firefox/46.0",
        "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)",
        "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)",
        "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)",
        "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Win64; x64; Trident/6.0)",
        "Mozilla/5.0 (Windows NT 6.3; Win64, x64; Trident/7.0; rv:11.0) like Gecko",
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/13.10586",
        "Mozilla/5.0 (iPad; CPU OS 10_0 like Mac OS X) AppleWebKit/602.1.38 (KHTML, like Gecko) Version/10.0 Mobile/14A300 Safari/602.1"
    ];
    const num = Math.floor(Math.random() * userAgentList.length);
    return userAgentList[num];
} 

最后，生成json文件，将封装好的函数进行调用。

(async () => {
  const sheet = await playlist(2161739123); 
    /**
     * 生成歌曲列表
     */
  fs.writeFileSync(
    path.resolve(__dirname, "../server/data/musicList.json"),
    JSON.stringify(sheet)
  ); 
   /**
    * 根据歌曲id生成歌词，返回[{id: lyric}]
    */
  Promise.all(
    sheet.tracks.map((item, index) => {
      return new Promise((resolve, reject) => {
        setTimeout(async () => {
          try {
            const lyric = await getLyric(item.id);
            console.log(`正在处理第${index}条数据的lyric，请耐心等候。。。`);
            resolve({
              [item.id]: lyric,
            });
          } catch (err) {
            resolve();
          }
        }, 300 * Math.random() + 50);
      });
    })
  ).then((arr) => {
    let lyric = {}; // 处理歌词，把数组转换为单个对象 eg:[{}] => {}
    arr.map((item) => {
      Object.assign(lyric, item);
    });
    fs.writeFileSync(
      path.resolve(__dirname, "../server/data/musicLyric.json"),
      JSON.stringify(lyric)
    );
  });
})();

注意：在上面的函数，其中用到了几个延时函数，用于避免过快的过快访问网易云音乐api接口，导致ip被锁。