[JavaScript知识库]用Vue制作简易音乐播放器

body,
ul,
dl,
dd {
  margin: 0px;
  padding: 0px;
}

.wrap {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: url("images/bg.jpg") no-repeat;
  background-size: 100% 100%;
}

.play_wrap {
  width: 800px;
  height: 544px;
  position: fixed;
  left: 50%;
  top: 50%;
  margin-left: -400px;
  margin-top: -272px;
  /* background-color: #f9f9f9; */
}

.search_bar {
  height: 60px;
  background-color: #1eacda;
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 11;
}

.search_bar img {
  margin-left: 23px;
}

.search_bar input {
  margin-right: 23px;
  width: 296px;
  height: 34px;
  border-radius: 17px;
  border: 0px;
  background: url("images/zoom.png") 265px center no-repeat
    rgba(255, 255, 255, 0.45);
  text-indent: 15px;
  outline: none;
}

.center_con {
  height: 435px;
  background-color: rgba(255, 255, 255, 0.5);
  display: flex;
  position: relative;
}

.song_wrapper {
  width: 200px;
  height: 435px;
  box-sizing: border-box;
  padding: 10px;
  list-style: none;
  position: absolute;
  left: 0px;
  top: 0px;
  z-index: 1;
}

.song_stretch {
  width: 600px;
}

.song_list {
  width: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  height: 100%;
}
.song_list::-webkit-scrollbar {
  display: none;
}

.song_list li {
  font-size: 12px;
  color: #333;
  height: 40px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  width: 580px;
  padding-left: 10px;
}

.song_list li:nth-child(odd) {
  background-color: rgba(240, 240, 240, 0.3);
}

.song_list li a {
  display: block;
  width: 17px;
  height: 17px;
  background-image: url("images/play.png");
  background-size: 100%;
  margin-right: 5px;
  box-sizing: border-box;
}

.song_list li b {
  font-weight: normal;
  width: 122px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.song_stretch .song_list li b {
  width: 200px;
}

.song_stretch .song_list li em {
  width: 150px;
}

.song_list li span {
  width: 23px;
  height: 17px;
  margin-right: 50px;
}
.song_list li span i {
  display: block;
  width: 100%;
  height: 100%;
  cursor: pointer;
  background: url("images/table.png") left -48px no-repeat;
}

.song_list li em,
.song_list li i {
  font-style: normal;
  width: 100px;
}

.player_con {
  width: 400px;
  height: 435px;
  position: absolute;
  left: 200px;
  top: 0px;
}

.player_con2 {
  width: 400px;
  height: 435px;
  position: absolute;
  left: 200px;
  top: 0px;
}

.player_con2 video {
  position: absolute;
  left: 20px;
  top: 30px;
  width: 355px;
  height: 265px;
}

.disc {
  position: absolute;
  left: 73px;
  top: 60px;
  z-index: 9;
}
.cover {
  position: absolute;
  left: 125px;
  top: 112px;
  width: 150px;
  height: 150px;
  border-radius: 75px;
  z-index: 8;
}
.comment_wrapper {
  width: 180px;
  height: 435px;
  list-style: none;
  position: absolute;
  left: 600px;
  top: 0px;
  padding: 25px 10px;
}
.comment_wrapper .title {
  position: absolute;
  top: 0;
  margin-top: 10px;
}
.comment_wrapper .comment_list {
  overflow: auto;
  height: 410px;
}
.comment_wrapper .comment_list::-webkit-scrollbar {
  display: none;
}
.comment_wrapper dl {
  padding-top: 10px;
  padding-left: 55px;
  position: relative;
  margin-bottom: 20px;
}

.comment_wrapper dt {
  position: absolute;
  left: 4px;
  top: 10px;
}

.comment_wrapper dt img {
  width: 40px;
  height: 40px;
  border-radius: 20px;
}

.comment_wrapper dd {
  font-size: 12px;
}

.comment_wrapper .name {
  font-weight: bold;
  color: #333;
  padding-top: 5px;
}

.comment_wrapper .detail {
  color: #666;
  margin-top: 5px;
  line-height: 18px;
}
.audio_con {
  height: 50px;
  background-color: #f1f3f4;
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
}
.myaudio {
  width: 800px;
  height: 40px;
  margin-top: 5px;
  outline: none;
  background-color: #f1f3f4;
}
/* 旋转的动画 */
@keyframes Rotate {
  from {
    transform: rotateZ(0);
  }
  to {
    transform: rotateZ(360deg);
  }
}
/* 旋转的类名 */
.autoRotate {
  animation-name: Rotate;
  animation-iteration-count: infinite;
  animation-play-state: paused;
  animation-timing-function: linear;
  animation-duration: 5s;
}
/* 是否正在播放 */
.player_con.playing .disc,
.player_con.playing .cover {
  animation-play-state: running;
}

.play_bar {
  position: absolute;
  left: 200px;
  top: -10px;
  z-index: 10;
  transform: rotate(-25deg);
  transform-origin: 12px 12px;
  transition: 1s;
}
/* 播放杆 转回去 */
.player_con.playing .play_bar {
  transform: rotate(0);
}
/* 搜索历史列表 */
.search_history {
  position: absolute;
  width: 296px;
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.3);
  list-style: none;
  right: 23px;
  top: 50px;
  box-sizing: border-box;
  padding: 10px 20px;
  border-radius: 17px;
}
.search_history li {
  line-height: 24px;
  font-size: 12px;
  cursor: pointer;
}
.switch_btn {
  position: absolute;
  right: 0;
  top: 0;
  cursor: pointer;
}
.right_line {
  position: absolute;
  left: 0;
  top: 0;
}
.video_con video {
  position: fixed;
  width: 800px;
  height: 546px;
  left: 50%;
  top: 50%;
  margin-top: -273px;
  transform: translateX(-50%);
  z-index: 990;
}
.video_con .mask {
  position: fixed;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  z-index: 980;
  background-color: rgba(0, 0, 0, 0.8);
}
.video_con .shutoff {
  position: fixed;
  width: 40px;
  height: 40px;
  background: url("images/shutoff.png") no-repeat;
  left: 50%;
  margin-left: 400px;
  margin-top: -273px;
  top: 50%;
  z-index: 995;
}

思路：

（1）搜索音乐。通过input输入框进行歌名或者关键字搜索，用v-model获取和设置表单的关键字“query”（<input?type="text"?autocomplete="off"?v-model="query"?@keyup.enter="searchMusic"?/>）；

鼠标回车后查询，在js中定义searchMusic的方法，得到搜索音乐的api（https://autumnfish.cn/search?keywords=），注意这里和上一个天气预报的一致，需要另存this，首先打印出response。得到其接口地址位置：如下

?

这里response?.data.result.songs,

即搜索音乐的js方法为：

searchMusic:?function()?{

????????var?that?=?this;

????????axios.get("https://autumnfish.cn/search?keywords="?+?this.query).then(

??????????function(response)?{

???

????????????that.musicList?=?response.data.result.songs;

????????????console.log(response.data.result.songs);

??????????},

??????????function(err)?{}

????????);

??????},

获取data数据为：query：“ ”

（2）歌曲播放。通过点击歌曲列表中的播放小图标进行播放，需要获取播放列表的url。通过v-for根据数据生成表单（<li?v-for="item?in??musicList">，）歌曲播放需要获取歌曲地址https://autumnfish.cn/song/url?id=，歌曲播放方法中传入musicId做为参数，同上打印出地址：为response.data.data[0].url，同时data中传入musicList以数组形式存储：??musicList:?[]，给表单前面的小图标a通过@click点击绑定事件=“playMusic（item.id）”，传入歌名item.name。

 // 歌曲播放
      playMusic: function(musicId) {
        //   console.log(musicId);
        var that = this;
        // 获取歌曲地址
        axios.get("https://autumnfish.cn/song/url?id=" + musicId).then(
          function(response) {
            // console.log(response);
            // console.log(response.data.data[0].url);
            that.musicUrl = response.data.data[0].url;
          },
          function(err) {}
        );

（3）??歌曲详情获取。即歌曲封面获取。api为："https://autumnfish.cn/song/detail?ids="，获取封面地址为response.data.songs[0].al.picUrl;同时在放置详情的div中放置?<img?:src="musicCover"?class="cover?autoRotate"?/>，css中旋转的设置如下：

/* 旋转的类名 */
.autoRotate {
  animation-name: Rotate;
  animation-iteration-count: infinite;
  animation-play-state: paused;
  animation-timing-function: linear;
  animation-duration: 5s;
}

（4）歌曲评论获取。方法同（2）。这里留言用户头像同3。

（5）歌曲播放和歌曲暂停。这里设置播放设置html中cssplaying：isplaying，播放则js中方法isplaying为TRUE，暂停则为FALSE，同时设置黑胶碟片和封面都为autoRotate，设置旋转和播放杆。

/* 播放杆 转回去 */
.player_con.playing .play_bar {
  transform: rotate(0);

（6）播放mv。通过mvid=0来确定网易云a中是否存在其MV，若存在则显示图标，并且允许播放。

HTML：
  <div class="audio_con">

                <audio ref='audio' @play="play" @pause="pause" :src="musicUrl" controls autoplay loop
                    class="myaudio"></audio>
            </div>

js：
 // 播放mv
      playMV: function(mvid) {
        var that = this;
        axios.get("https://autumnfish.cn/mv/url?id=" + mvid).then(
          function(response) {
            // console.log(response);
            console.log(response.data.data.url);
            that.isShow = true;
            that.mvUrl = response.data.data.url;
          },
          function(err) {}
        );
      },

音乐播放器思路如上。实现效果如下：

?全部代码如下：

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>昂疑云音乐</title>
    <link rel="stylesheet" href="music.css">
</head>

<body>
    <div class="wrap">
        <div class="play_wrap" id="player">
            <div class="search_bar">
                <img src="images/player_title.png" />
                <input type="text" autocomplete="off" v-model="query" @keyup.enter="searchMusic" />
            </div>

            <div class="center_con">
                <div class="song_wrapper">
                    <ul class="song_list">
                        <li v-for="item in  musicList">

                            <a href="javascript:;" @click="playMusic(item.id)"></a>
                            <b>{{item.name}}</b>
                            <span v-if="item.mvid!=0" @click="playMV(item.mvid)"><i></i></span>

                        </li>
                    </ul>
                    <img src="images/line.png" class="switch_btn" alt="">
                </div>
                <div class="player_con" :class="{playing:isPlaying}">
                    <img src="images/player_bar.png" class="play_bar" />
                    <!-- 黑胶碟片 -->
                    <img src="images/disc.png" class="disc autoRotate" />
                    <img :src="musicCover" class="cover autoRotate" />
                </div>



                <div class="comment_wrapper">

                    <h5 class='title'>热门留言</h5>
                    <div class="comment_list">

                        <dl v-for="item in hotComments">
                            <dt><img :src="item.user.avatarUrl"></dt>
                            <dd class="name">{{item.nickname}}</dd>
                            <dd class="detail">
                                {{ item.content}}
                            </dd>
                        </dl>
                    </div>
                    <img src="images/line.png" class="right_line">
                </div>
            </div>
            <div class="audio_con">

                <audio ref='audio' @play="play" @pause="pause" :src="musicUrl" controls autoplay loop
                    class="myaudio"></audio>
            </div>
            <div class="video_con" v-show="isShow" style="display:none;">
                <video :src="mvUrl" controls="controls"></video>
                <div class="mask" @click="hide"></div>

            </div>
        </div>

    </div>
    <!-- 开发环境版本，包含了有帮助的命令行警告 -->
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    <!-- 官网提供的 axios 在线地址 -->
    <script src="https://unpkg.com/axios/dist/axios.min.js"></script>
    <script src="music.js"></script>

</body>

</html>

var app = new Vue({
    el: "#player",
    data: {
      // 查询关键字
      query: "",
      // 歌曲数组
      musicList: [],
      // 歌曲地址
      musicUrl: "",
      // 歌曲封面
      musicCover: "",
      // 歌曲评论
      hotComments: [],
      // 动画播放状态
      isPlaying: false,
      // 遮罩层的显示状态
      isShow: false,
      // mv地址
      mvUrl: ""
    },
    methods: {
      // 歌曲搜索
      searchMusic: function() {
        var that = this;
        axios.get("https://autumnfish.cn/search?keywords=" + this.query).then(
          function(response) {
            // console.log(response);
            that.musicList = response.data.result.songs;
            console.log(response.data.result.songs);
          },
          function(err) {}
        );
      },
      // 歌曲播放
      playMusic: function(musicId) {
        //   console.log(musicId);
        var that = this;
        // 获取歌曲地址
        axios.get("https://autumnfish.cn/song/url?id=" + musicId).then(
          function(response) {
            // console.log(response);
            // console.log(response.data.data[0].url);
            that.musicUrl = response.data.data[0].url;
          },
          function(err) {}
        );
  
        // 歌曲详情获取
        axios.get("https://autumnfish.cn/song/detail?ids=" + musicId).then(
          function(response) {
            // console.log(response);
            // console.log(response.data.songs[0].al.picUrl);
            that.musicCover = response.data.songs[0].al.picUrl;
          },
          function(err) {}
        );
  
        // 歌曲评论获取
        axios.get("https://autumnfish.cn/comment/hot?type=0&id=" + musicId).then(
          function(response) {
            // console.log(response);
            // console.log(response.data.hotComments);
            that.hotComments = response.data.hotComments;
          },
          function(err) {}
        );
      },
      // 歌曲播放
      play: function() {
        // console.log("play");
        this.isPlaying = true;
      },
      // 歌曲暂停
      pause: function() {
        // console.log("pause");
        this.isPlaying = false;
      },
      // 播放mv
      playMV: function(mvid) {
        var that = this;
        axios.get("https://autumnfish.cn/mv/url?id=" + mvid).then(
          function(response) {
            // console.log(response);
            console.log(response.data.data.url);
            that.isShow = true;
            that.mvUrl = response.data.data.url;
          },
          function(err) {}
        );
      },
      // 隐藏
      hide: function() {
        this.isShow = false;
      }
    }
  });
  

不得不说音乐播放部分动态的css设置真的太神奇了！！