下載音樂檔

去免費的音樂音效網站「魔王魂」下載mp3檔案

var request = require('request'),
    cheerio = require('cheerio'),
    fs = require('fs');

var audioDir = './audios';
var url = 'http://maoudamashii.jokersounds.com/list/bgm3.html';

request(url, function(err, res, body) {
    if (!err && res.statusCode === 200) {
        var $ = cheerio.load(body);
        var audioUrls = [];
        $('audio').each(function() {
            audioUrls.push($(this).attr('src'));
        });

        if (!fs.existsSync(audioDir)) {
            fs.mkdirSync(audioDir);
        }

        console.log("Detect " + audioUrls.length + " audio files.");

        audioUrls.forEach(function(img, i) {

            //取得檔名，因為檔案的名吃包含路徑
            //像是http://maoudamashii.jokersounds.com/music/bgm/mp3/bgm_maoudamashii_acoustic51.mp3
            //所以必須將前面的路徑給去除
            var filename = audioUrls[i].split('/').slice(-1)[0];

            console.log("Downloading [ " + filename + " ]");
            request(audioUrls[i]).pipe(fs.createWriteStream(audioDir + '/' + filename));
        });
    }
});