NodeJS 获取酷狗音乐

先获得歌手列表，将歌手列表存贮到本地

var request = require('request');
var cheerio = require('cheerio');
var path = require('path');
var fs = require('fs');var out = fs.createWriteStream('./test1.txt');var listUrl=new Array();
var filenames=new Array();var requrl="http://www.kugou.com/yy/singer/index/1-a-1.html";
var headurlbase= 'http://www.kugou.com/yy/singer/index/'
var singerList=new Array()
var page_Num=0;var reqlist=[]for(let i=97;i<123;i++){var headbasestring= String.fromCharCode(i)var headurl = headurlbase+'1-'+headbasestring+'-1.html'//console.log( 'headurl  : ' +headurl );for (let j=1;j<=5;j++){requrl = headurlbase+j+'-'+headbasestring+'-1.html'reqlist.push(requrl);//console.log('curent url is ' + requrl)}for(let k=2; k<12;k++){requrl = headurlbase+'1-'+headbasestring+'-'+k+'.html'reqlist.push(requrl);//console.log('curent url is ' + requrl)}
}
console.log('End....'+reqlist.length);
//for(let i=0; i< reqlist.length;i++){
for(let i=0; i< 390;i++){console.log(' i =  ['+i+']   current get the url :  ---'+reqlist[i])getHtmlPage(reqlist[i])
}function getHtmlPage(url){request(url, function (error, response, body) {if (!error && response.statusCode == 200) {var tmplist =acquireSingerData(body)singerList.push.apply(singerList,tmplist)}console.log('singerList length ====='+singerList.length)console.log(singerList)});
}function acquirePageNum(data){var $ = cheerio.load(data);console.log('start find page ');var pageNum=$('#mypage').find('a').eq(-3).text()   // 通过索引筛选匹配的元素。使用.eq(-i)就从最后一个元素向前数。console.log('mypage :'+pageNum)return pageNum}function acquireSingerData(data) { var tmpsingerlist=[]var $ = cheerio.load(data);//网页内容装入cheerio中之后，查找网页节点元素， 加入'#'和加入’.‘查找的方式不一样//topsingerlist=$('#list_head strong').toArray();  //找到list_head节点下所有strong的节点//前18个歌手信息var topsingerlist=$('#list_head')console.log("singer info is :"+topsingerlist.length);topsingerlist.find('li').each(function(item){var  infos=$(this)let singername=infos.find('strong').find('a').text()let singerurl=infos.find('strong').find('a').attr('href')out.write(singerurl)out.write('\n')console.log('singer name :  ['+singername+']   地址 :'+singerurl)var singerData={singername:singername,singerurl:singerurl};tmpsingerlist.push(singerurl);});//后32个歌手信息var lastsingerlist=$('#list1 a').toArray();console.log("list1 :"+lastsingerlist.length);for(let i = 0; i < lastsingerlist.length;i++ ){let singername=lastsingerlist[i].attribs.title;let singerurl=lastsingerlist[i].attribs.href; console.log('singer name :['+singername+']   地址 :'+singerurl)out.write(singerurl)out.write('\n')var singerData={singername:singername,singerurl:singerurl};tmpsingerlist.push(singerurl);}//console.log(tmpsingerlist)return tmpsingerlist
}

根据歌手列表下载歌曲（初版代码）


var request = require('request');
var cheerio = require('cheerio');
var path = require('path');
var fs = require('fs');
var requrl="http://www.kugou.com/singer/420.html";  //陈奕迅歌单
var requrl="http://www.kugou.com/yy/singer/home/1574.html";  //林俊杰歌单
//var requrl="http://www.kugou.com/yy/singer/home/192923.html";     //摩登兄弟歌单
var listUrl=new Array();
var filenames=new Array();var  songsFolderNamerequest(requrl, function (error, response, body) {if (!error && response.statusCode == 200) {acquireData(body); }for(let i=0;i<listUrl.length;i++){let time=new Date().getTime();request('http://www.kugou.com/yy/index.php?r=play/getdata&hash='+listUrl[i]+'&album_id=0'+'&_='+time, function (error, response, body) { if (!error && response.statusCode == 200) {acquireMusic(body,i); } }); }});function acquireData(data) { var $ = cheerio.load(data);songsFolderName  = $('.mbx').find('span').text();songsFolderName=songsFolderName+'/'console.log("singer info is :"+songsFolderName);fs.exists(songsFolderName,function(exists){if (exists){console.log("歌手目录["+songsFolderName+"]已经存在，无需创建");}else{fs.mkdir(songsFolderName,function(err){if (err) {return console.error(err);}console.log("歌手目录["+songsFolderName+"]创建成功");});}});var songlist = $('#song_container input').toArray(); //console.log(songlist);for(let i=0;i<songlist.length;i++){ let info=songlist[i].attribs.value; //console.log("info=songlist[i].attribs.value:"+info);let reg=/\|/; let hash=new Array(); //hash=info.split(reg);hash=info.split('|');//console.log("info.split(reg):"+hash);listUrl.push(hash[1]); //console.log("hash[1] : "+hash[1]); //console.log("hash[0] : "+hash[0]); filenames.push(hash[0]); } } function acquireMusic(data,Num){var info=JSON.parse(data);var imgsrc=info.data.play_url; var lyricInfo=info.data.lyrics;//var filename = parseUrlForFileName(imgsrc);var filename=filenames[Num]; console.log("current num is "+Num+"   current song is:"+filename);/*//console.log("current num is "+Num+"current info.data.audio_name is:"+info.data.audio_name);//console.log("current num is "+Num+"current info.data.author_name is:"+info.data.author_name);for (let item in info ){var inter = info[item];console.log(inter);    }*/downloadLyric(lyricInfo,filename,function(){console.log("current num is["+Num+"]  ---- :["+filename+"]'s  lyric has donwload done");});downloadImg(imgsrc,filename,function(){ console.log("current num is ["+Num+"] ----  :["+filename + '] 的歌曲写入本地已经完成 ');}); }function parseUrlForFileName(address) { var filename = path.basename(address); return filename;
}var downloadLyric=function(lyricInfo,filename,callback) {out=fs.createWriteStream(songsFolderName+filename+'.lyc');out.write(lyricInfo);out.end("close",callback);
}var downloadImg = function(uri, filename, callback){request.head(uri, function(err, res, body){ if (err) { console.log('err: '+ err); return false; } //console.log('res: '+ res); console.log('正在位置 : '+ songsFolderName+'写入文件  --------【'+filename+'.mp3】 它的下载地址为：----'+uri); request(uri).pipe(fs.createWriteStream(songsFolderName+filename+'.mp3')).on('close', callback); //调用request的管道来下载到 images文件夹下 });
};

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