摘要：我自己一直喜歡用網(wǎng)易云音樂，于是乎就做了這個(gè)。后臺(tái)后臺(tái)采用做為后臺(tái)提供系統(tǒng)請(qǐng)求所用的源碼，原理很簡(jiǎn)單就是用偽裝成一個(gè)客戶端去訪問網(wǎng)易云音樂的然后，把返回的數(shù)據(jù)轉(zhuǎn)發(fā)出來(lái)。

前言：自己學(xué)習(xí)VUEJS也一段時(shí)間，但一直沒有做出來(lái)一東西。我自己一直喜歡用網(wǎng)易云音樂app，于是乎就做了這個(gè)app。

vue全家桶 （vue vue-router vuex）

axios

Muse-UI(一個(gè)基于Vue2.x的material design 風(fēng)格UI框架)

我之前學(xué)習(xí)JS的時(shí)候?qū)tml5 audio研究過(guò)，也寫過(guò)一些例子，那時(shí)的功能并不是很全面。在寫這個(gè)程序之前，我好好的查閱了當(dāng)前的HTML5中的audio標(biāo)簽，發(fā)現(xiàn)園子上一位園友總結(jié)的很不錯(cuò)（這里）。于是就先把網(wǎng)易云音樂最基本的功能實(shí)現(xiàn)，歌單部分（這也是我喜歡網(wǎng)易云音樂的原因這一），然后實(shí)現(xiàn)音樂的上一曲、下一曲，播放、暫停。列表功能。

后臺(tái)采用.net做為后臺(tái)提供系統(tǒng)請(qǐng)求所用的API(源碼)，原理很簡(jiǎn)單就是用.net偽裝成一個(gè)客戶端去訪問網(wǎng)易云音樂的API然后，把返回的json數(shù)據(jù)轉(zhuǎn)發(fā)出來(lái)。同時(shí)服務(wù)端做下跨域處理。

核心代碼：

/// 

/// 請(qǐng)求網(wǎng)易云音樂接口
/// 
/// 要請(qǐng)求的接口類型
/// 要請(qǐng)求的接口類型的對(duì)象
/// 請(qǐng)求結(jié)果(JSON)
public static string Request(T config) where T : RequestData, new()
{
    // 請(qǐng)求URL
    string requestURL = config.Url;
    // 將數(shù)據(jù)包對(duì)象轉(zhuǎn)換成QueryString形式的字符串
    string @params = config.FormData.ParseQueryString();
    bool isPost = config.Method.Equals("post", StringComparison.CurrentCultureIgnoreCase);

    if (!isPost)
    {
        // get方式 拼接請(qǐng)求url
        string sep = requestURL.Contains("?") ? "&" : "?";
        requestURL += sep + @params;
    }

    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(requestURL);
    req.Accept = "*/*";
    req.Headers.Add("Accept-Language", "zh-CN,zh;q=0.8,gl;q=0.6,zh-TW;q=0.4");
    // 如果服務(wù)端啟用了GZIP，那么下面必須解壓，否則一直亂碼。
    // 參見：http://www.crifan.com/set_accept_encoding_header_to_gzip_deflate_return_messy_code/
    req.Headers.Add("Accept-Encoding", "gzip,deflate,sdch");
    req.ContentType = "application/x-www-form-urlencoded";
    req.KeepAlive = true;
    req.Host = "music.163.com";
    req.Referer = "http://music.163.com/search/";
    req.UserAgent = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.152 Safari/537";            
    // 設(shè)置cookies
    req.Headers["Cookie"] = "appver=1.5.2";
    req.Method = config.Method;
    req.AutomaticDecompression = DecompressionMethods.GZip;
    if (isPost)
    {
        // 寫入post請(qǐng)求包
        byte[] formData = Encoding.UTF8.GetBytes(@params);
        // 設(shè)置HTTP請(qǐng)求頭  參考：https://github.com/darknessomi/musicbox/blob/master/NEMbox/api.py          
        req.GetRequestStream().Write(formData, 0, formData.Length);
    }            
    // 發(fā)送http請(qǐng)求 并讀取響應(yīng)內(nèi)容返回
    return new StreamReader(req.GetResponse().GetResponseStream(), Encoding.GetEncoding("UTF-8")).ReadToEnd();
}

項(xiàng)目結(jié)構(gòu)

├── index.html
├── main.js
├── api
│   └── ... # 抽取出API請(qǐng)求
├── components
│   ├── playBar.vue
│   └── ...
└── store
│    └── index.js        # 整個(gè)項(xiàng)目的vuex部分
└── router
│   └── router.js        # 整個(gè)項(xiàng)目的路由
└── utils                # 一些工具類模塊
│
└── views                # 項(xiàng)目中的一些route-view

說(shuō)項(xiàng)目的路由之前，先來(lái)看一張效果圖

對(duì)于整個(gè)項(xiàng)目來(lái)說(shuō)：視圖區(qū)別在于頂部導(dǎo)航，下面的bar的是否出來(lái)取決于，當(dāng)前系統(tǒng)列表中是否有歌曲，如果有就會(huì)出現(xiàn)。

router.js核心部分

const router = new VueRouter({
  mode: "history",
  routes: [{
    path: "/index",
    component: require("../views/index"),
    children: [
      {
        path: "rage",
        component: require("../views/rage")
      },
      {
        path: "songList",
        component: require("../views/songList")
      },
      {
        path: "leaderBoard",
        component: require("../views/leaderBoard")
      },
      {
        path: "hotSinger",
        component: require("../views/hotSinger")
      }
    ]
  }, {
    name: "playerDetail",
    path: "/playerDetail/:id",
    component: require("../views/playerDetail")
  }, {
    path: "/playListDetail/:id",
    name: "playListDetail",
    component: require("../views/playListDetail")
  }, {
    path: "*", redirect: "/index/rage"
  }],
  // 讓每個(gè)頁(yè)面都滾動(dòng)到頂部，改變模式為mode: history
  scrollBehavior (to, from, savedPosition) {
    if (savedPosition) {
      return savedPosition
    } else {
      return { x: 0, y: 0 }
    }
  }
})

vuex部分

這部分，主要是歌曲這一塊，因?yàn)椴煌捻?yè)面有不同的使用到了歌曲信息，把把這部分?jǐn)?shù)據(jù)放到vuex中做統(tǒng)一的數(shù)據(jù)處理！
sotre/index.js

const store = new Vuex.Store({
  state: {
    audio: {
      "id": 0,
      "name": "歌曲名稱",
      "singer": "演唱者",
      "albumPic": "/static/player-bar.png",
      "location": "",
      "album": ""
    },
    lyric: "正在加載中。。",
    currentIndex: 0, // 當(dāng)前播放的歌曲位置
    playing: false, // 是否正在播放
    loading: false, // 是否正在加載中
    showDetail: false,
    songList: [],    // 播放列表
    currentTime: 0,
    tmpCurrentTime: 0,
    durationTime: 0,
    bufferedTime: 0,
    change: false   // 判斷是更改的時(shí)間還是播放的時(shí)間
  },
  getters: {
    audio: state => state.audio,
    playing: state => state.playing,
    loading: state => state.loading,
    showDetail: state => state.showDetail,
    durationTime: state => state.durationTime,
    currentIndex: state => state.currentIndex,
    bufferedTime: state => state.bufferedTime,
    tmpCurrentTime: state => state.tmpCurrentTime,
    songList: state => state.songList,
    change: state => state.change,
    currentTime: state => state.currentTime,
    prCurrentTime: state => {
      return state.currentTime / state.durationTime * 100
    },
    prBufferedTime: state => {
      return state.bufferedTime / state.durationTime * 100
    }
  },
  mutations: {
    play (state) {
      state.playing = true
    },
    pause (state) {
      state.playing = false
    },
    toggleDetail (state) {
      state.showDetail = !state.showDetail
    },
    setAudio (state) {
      state.audio = state.songList[state.currentIndex - 1]
    },
    setAudioIndex (state, index) {
      state.audio = state.songList[index]
      state.currentIndex = index + 1
    },
    removeAudio (state, index) {
      state.songList.splice(index, 1)
      state.audio = state.songList[index - 1]
      state.currentIndex = state.currentIndex - 1
      if (state.songList.length === 0) {
        state.audio = {
          "id": 0,
          "name": "歌曲名稱",
          "singer": "演唱者",
          "albumPic": "/static/player-bar.png",
          "location": "",
          "album": ""
        }
        state.playing = false
      }
    },
    setChange (state, flag) {
      state.change = flag
    },
    setLocation (state, location) {
      state.audio.location = location
    },
    updateCurrentTime (state, time) {
      state.currentTime = time
    },
    updateDurationTime (state, time) {
      state.durationTime = time
    },
    updateBufferedTime (state, time) {
      state.bufferedTime = time
    },
    changeTime (state, time) {
      state.tmpCurrentTime = time
    },
    openLoading (state) {
      state.loading = true
    },
    closeLoading (state) {
      state.loading = false
    },
    resetAudio (state) {
      state.currentTime = 0
    },
    playNext (state) { // 播放下一曲
      state.currentIndex++
      if (state.currentIndex > state.songList.length) {
        state.currentIndex = 1
      }
      state.audio = state.songList[state.currentIndex - 1]
    },
    playPrev (state) { // 播放上一曲
      state.currentIndex--
      if (state.currentIndex < 1) {
        state.currentIndex = state.songList.length
      }
      state.audio = state.songList[state.currentIndex - 1]
    },
    addToList (state, item) {
      var flag = false
      state.songList.forEach(function (element, index) { // 檢測(cè)歌曲重復(fù)
        if (element.id === item.id) {
          flag = true
          state.currentIndex = index + 1
        }
      })
      if (!flag) {
        state.songList.push(item)
        state.currentIndex = state.songList.length
      }
    },
    setLrc (state, lrc) {
      state.lyric = lrc
    }
  },
  // 異步的數(shù)據(jù)操作
  actions: {
    getSong ({commit, state}, id) {
      commit("openLoading")
      Axios.get(api.getSong(id)).then(res => {
        // 統(tǒng)一數(shù)據(jù)模型，方便后臺(tái)接口的改變
        var url = res.data.data[0].url
        commit("setAudio")
        commit("setLocation", url)
      })
    },
    getLrc ({commit, state}, id) {
      commit("setLrc", "[txt](加載中。。。")
      Axios.get(api.getLrc(id)).then(res => {
        // 1、先判斷是否有歌詞
        if (res.data.nolyric) {
          commit("setLrc", "[txt](⊙０⊙) 暫無(wú)歌詞")
        } else {
          console.log(res.data.lrc.lyric)
          commit("setLrc", res.data.lrc.lyric)
        }
      })
    }
  }
})

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