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How to use Layui to develop a music sharing platform that supports music playback and downloading

王林Original: 2023-10-27 11:03:28808browse

With the rapid development of the Internet, the dissemination and sharing of music has become an integral part of people's lives. part. The development of a music sharing platform that supports music playback and downloading can meet the needs of users and provide musicians with a platform to display and promote their works. This article will introduce how to use Layui to develop a music sharing platform that supports music playback and downloading, and provide specific code examples.

Build the project infrastructure

First, we need to build a basic project structure. In this project, we use Layui as the front-end framework, and the back-end file server. The project structure is as follows:

index.html
js folder
- layui.js
- jquery.js
- main.js
##css folder
- main.css
music folder

In index.html, we first need to add a reference to the Layui framework. Use the following code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>音乐分享平台</title>
  <link rel="stylesheet" href="css/layui.css">
  <link rel="stylesheet" href="css/main.css">
</head>
<body>
  <!-- 页面内容 -->
  <script src="js/jquery.js"></script>
  <script src="js/layui.js"></script>
  <script src="js/main.js"></script>
</body>
</html>

Next, we need to design the page layout for the platform. We use Layui's layout component to layout the page. In index.html, you can use the following code:

<!-- 页面内容 -->
<div class="layui-container">
  <div class="layui-row">
    <div class="layui-col-md6">
      <div class="title">音乐列表</div>
      <ul id="musicList" class="layui-nav layui-nav-tree"></ul>
    </div>
    <div class="layui-col-md6">
      <div class="title">音乐播放器</div>
      <audio id="musicPlayer" src=""></audio>
      <div class="button-group">
        <button id="playButton" class="layui-btn layui-btn-primary">播放</button>
        <button id="pauseButton" class="layui-btn layui-btn-primary">暂停</button>
        <button id="downloadButton" class="layui-btn layui-btn-primary">下载</button>
      </div>
    </div>
  </div>
</div>

In the above code, we use Layui's grid system for page layout. The music list is on the left, the music player is on the right, and the play, pause, and download buttons are at the bottom.

In main.js, we use jQuery to send a request to obtain the music list and render it to the page. The code is as follows:

$(function() {
  // 请求音乐列表
  $.get("http://localhost:8080/api/music/list", function(res) {
    if (res.code === 0) {
      var musicList = res.data;
      var html = "";
      for (var i = 0; i < musicList.length; i++) {
        html += '<li class="layui-nav-item" data-url="' + musicList[i].url + '">' + musicList[i].name + '</li>';
      }
      $("#musicList").html(html);
    }
  });

  // 点击音乐列表播放音乐
  $("#musicList").on("click", "li", function() {
    var url = $(this).data("url");
    $("#musicPlayer").attr("src", url);
  });

  // 点击播放按钮播放音乐
  $("#playButton").click(function() {
    $("#musicPlayer")[0].play();
  });

  // 点击暂停按钮暂停音乐
  $("#pauseButton").click(function() {
    $("#musicPlayer")[0].pause();
  });

  // 点击下载按钮下载音乐
  $("#downloadButton").click(function() {
    var url = $("#musicPlayer").attr("src");
    window.open(url);
  });
});

In the above code, we send a GET request to obtain the music list and render the list to the music list in the page. Then, according to the user's click event, set the path of the music player to implement the play, pause and download functions of music.

In the backend, we need to develop an interface to return the music list. In this example, we use Node.js and Express framework for backend development. The specific code is as follows:

const express = require("express");
const app = express();

app.get("/api/music/list", (req, res) => {
  // 从数据库或文件获取音乐列表数据
  const musicList = [
    { name: "音乐1", url: "http://localhost:8080/music/music1.mp3" },
    { name: "音乐2", url: "http://localhost:8080/music/music2.mp3" },
    { name: "音乐3", url: "http://localhost:8080/music/music3.mp3" }
  ];

  res.json({ code: 0, data: musicList });
});

app.use("/music", express.static(__dirname + "/music"));

app.listen(8080, () => {
  console.log("Server is running");
});

In the above code, we used the Express framework to create a simple interface

/api/music/list, which returned a music list. At the same time, we map the /music path to the directory where the music files are stored through the express.static middleware so that the music files can be accessed through the URL.

So far, we have completed the example of using Layui to develop a music sharing platform that supports music playback and downloading. In actual development, corresponding modifications and improvements need to be made according to needs. I hope this article can be helpful to developers who use Layui to develop music sharing platforms.

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中间件 jquery layui html 前端框架 express Static 接口 JS 事件

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