QQ音乐爬虫（NodeJs）

一、创建一个文件夹

　　例如我创建在D:\code\qq-music

　　在文件目录打开cmd

　　在cmd中执行 npm init 项目初始化

　　然后安装一些工具包： 

　　npm i request -s

　　npm i querystring -s

　　在目录下创建一个Music的文件夹用于存储下载的音乐文件

二、直接上代码　　D:\code\qq-music\qqMusic.js

const request = require(‘request‘);
const fs = require(‘fs‘); //文件模块
const querystring=require("querystring");

const downMusic = function(UrlJsonObj){
 ???const baseUrl = "http://124.232.155.157/amobile.music.tc.qq.com/";
 ???for(var attr in UrlJsonObj){
 ???????const musicJsonObj = UrlJsonObj[attr];
 ???????const songname = musicJsonObj.songname;
 ???????const songUrl = musicJsonObj.songUrl;
 ???????request(baseUrl+songUrl).pipe(fs.createWriteStream(‘./Music/‘+songname+‘.m4a‘))
 ???}
};

const makeMusicJsonArray = function(songJsonArray){
 ???const baseUrl = "https://u.y.qq.com/cgi-bin/musicu.fcg";
 ???let UrlJsonObj = {};
 ???songJsonArray.map(function(musicInfo){
 ???????const songname = musicInfo.songname;
 ???????const songmid = musicInfo.songmid;
 ???????const url = baseUrl+"?"+querystring.stringify(musicInfo.params);
 ???????request(url, function (error, response, body) {
 ???????????const BodyJson = JSON.parse(body);
 ???????????let musicInfo = {
 ???????????????songname : this.songname
 ???????????};
 ???????????musicInfo["songUrl"] = BodyJson["req_0"]["data"]["midurlinfo"][0]["purl"];
 ???????????UrlJsonObj[this.songmid] = musicInfo;
 ???????????if(Object.getOwnPropertyNames(UrlJsonObj).length == songJsonArray.length){
 ???????????????this.downMusic(UrlJsonObj)
 ???????????}
 ???????}.bind({
 ???????????songname : songname,
 ???????????songmid : songmid,
 ???????????downMusic : downMusic
 ???????}));
 ???});
};

下面标红的是我在这个页面找到的歌曲清单接口

const queryMusicList = function(){
 ???request(‘https://c.y.qq.com/v8/fcg-bin/fcg_v8_toplist_cp.fcg?tpl=3&page=detail&date=2018_41&topid=26&type=top&song_begin=0&song_num=300&g_tk=5381&loginUin=0&hostUin=0&format=jsonp&inCharset=utf8&outCharset=utf-8&notice=0&platform=yqq&needNewCode=0‘, function (error, response, body) {
 ???????if(response.statusCode == 200){
 ???????????body = JSON.parse(body);
 ???????????const songList = body.songlist;
 ???????????let songJsonArray = [];
 ???????????songList.map(function(songDetail){
 ???????????????songDetail = songDetail.data;
 ???????????????const songJsonObj = {
 ???????????????????‘albumname‘ : songDetail.albumname,
 ???????????????????‘albummid‘ : songDetail.albummid,
 ???????????????????‘singer‘: ?songDetail.singer[0]["name"],
 ???????????????????‘songname‘: songDetail.songname,
 ???????????????????‘songmid‘: songDetail.songmid,
 ???????????????????‘songtype‘: songDetail.songtype
 ???????????????};

 ???????????????const musicParams ?= {
 ???????????????????"req":{
 ???????????????????????"module":"CDN.SrfCdnDispatchServer",
 ???????????????????????"method":"GetCdnDispatch",
 ???????????????????????"param":{
 ???????????????????????????"guid":"1111",
 ???????????????????????????"calltype":0,
 ???????????????????????????"userip":""
 ???????????????????????}
 ???????????????????},
 ???????????????????"req_0":{
 ???????????????????????"module":"vkey.GetVkeyServer",
 ???????????????????????"method":"CgiGetVkey",
 ???????????????????????"param":{
 ???????????????????????????"guid":"1111",
 ???????????????????????????"songmid":[songDetail.songmid],
 ???????????????????????????"songtype":[songDetail.songtype],
 ???????????????????????????"uin":"0",
 ???????????????????????????"loginflag":1,
 ???????????????????????????"platform":"20"
 ???????????????????????}
 ???????????????????},
 ???????????????????"comm":{
 ???????????????????????"uin":0,
 ???????????????????????"format":"json",
 ???????????????????????"ct":20,
 ???????????????????????"cv":0
 ???????????????????}
 ???????????????};
 ???????????????var params = {
 ???????????????????loginUin : 0,
 ???????????????????hostUin : 0,
 ???????????????????format : ‘jsonp‘,
 ???????????????????inCharset: ‘utf8‘,
 ???????????????????outCharset: ‘utf-8‘,
 ???????????????????notice: 0,
 ???????????????????platform: ‘yqq‘,
 ???????????????????needNewCode: 0,
 ???????????????????data: encodeURI(JSON.stringify(musicParams))
 ???????????????};
 ???????????????songJsonObj["params"] = params
 ???????????????songJsonArray.push(songJsonObj)
 ???????????});
 ???????????makeMusicJsonArray(songJsonArray);

 ???????}
 ???});
};

queryMusicList();

三、运行代码
node qqMusic.js

PS:纯粹是娱乐一下，打发休息时间

QQ音乐爬虫（NodeJs）

原文地址：https://www.cnblogs.com/WarrenLee/p/9819679.html