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音乐播放器微信小程序_来一杯Java咖啡

10 人参与  2022年02月15日 18:14  分类 : 《休闲阅读》  评论

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1.准备环境

        2.1 开发工具

        IDEA2019  微信开发者工具 PostMan SQLYog

        2.2 开发环境

        Java+mysql+JavaScript+json

 2. 简介

        前后端分离,在微信开发者工具中写页面以及跳转,在数据库中写入音乐类型 专辑名称 演唱者 以及音乐的url ,通过Java 将数据库中的数据获取出来封装成 json 通过url进行传值,在前端进行解析展示出来

3.代码

        sql:创建数据库 表 插入数据

/*
SQLyog Ultimate v13.1.1 (64 bit)
MySQL - 5.7.29 : Database - wyy_music
*********************************************************************
*/

/*!40101 SET NAMES utf8 */;

/*!40101 SET SQL_MODE=''*/;

/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
CREATE DATABASE /*!32312 IF NOT EXISTS*/`wyy_music` /*!40100 DEFAULT CHARACTER SET utf8 */;

USE `wyy_music`;

/*Table structure for table `tb_music` */

DROP TABLE IF EXISTS `tb_music`;

CREATE TABLE `tb_music` (
  `music_id` int(11) NOT NULL AUTO_INCREMENT,
  `music_name` varchar(255) NOT NULL,
  `music_album_name` varchar(255) NOT NULL,
  `music_album_picUrl` varchar(255) NOT NULL,
  `music_mp3Url` varchar(255) NOT NULL,
  `music_artist_name` varchar(255) NOT NULL,
  `sheet_id` int(11) DEFAULT NULL,
  PRIMARY KEY (`music_id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;

/*Data for the table `tb_music` */

insert  into `tb_music`(`music_id`,`music_name`,`music_album_name`,`music_album_picUrl`,`music_mp3Url`,`music_artist_name`,`sheet_id`) values 
(1,'光年之外','光年之外','https://imgessl.kugou.com/stdmusic/20161229/20161229233400375274.jpg','https://webfs.ali.kugou.com/202109271010/183cab94955d96aee0120d1d4677540d/KGTX/CLTX001/f87095bff0de7c636c3a3b8aac702d76.mp3','G.E.M.邓紫棋',1),
(2,'夜空中最亮的星','世界','https://imgessl.kugou.com/stdmusic/20150719/20150719010047203836.jpg','https://webfs.tx.kugou.com/202109271011/8ac45da301d093ccdd58111ad91371eb/G202/M04/1B/13/aocBAF55G0-ADd0HAD2Y88Efqbw072.mp3','逃跑计划',1),
(3,'只要平凡','只要平凡','https://y.qq.com/music/photo_new/T002R300x300M000000K7srf1rZtOX.jpg?max_age=2592000','https://webfs.ali.kugou.com/202109271009/ac5e4c1b2e0e14cc1fc06d6ef8bbd286/KGTX/CLTX001/38aead7ed546b0736791ebb25c3a3951.mp3','张杰/张碧晨',2),
(4,'你要跳舞吗','生命因你而火热','https://imgessl.kugou.com/stdmusic/20160407/20160407002744966139.jpg','https://webfs.ali.kugou.com/202109271014/fd2f5cee5791b2ed79bd65490c5af5a7/KGTX/CLTX001/58ffa0221ed9397e7ad9b889cdbe1a4a.mp3','新裤子乐队',2);

/*Table structure for table `tb_sheet` */

DROP TABLE IF EXISTS `tb_sheet`;

CREATE TABLE `tb_sheet` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `sheet_name` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8;

/*Data for the table `tb_sheet` */

insert  into `tb_sheet`(`id`,`sheet_name`) values 
(1,'热歌榜'),
(2,'新歌榜'),
(3,'原创榜'),
(6,'抖音榜');

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

文件结构

     

我是通过druid连接的数据库

   druid.properties配置文件

driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/wyy_music?useSSL=false
username=root
password=1234

initialSize=5
maxActive=20
maxWait=2000

JdbcUtil

package com.java.util;

import com.alibaba.druid.pool.DruidDataSourceFactory;
import org.apache.commons.dbutils.QueryRunner;

import javax.sql.DataSource;
import java.io.InputStream;
import java.util.Properties;

//使用DBUtils的工具类
public class JdbcUtil {

    //声明DataSource对象
    private static DataSource dataSource;

    //静态代码块
    static {

        try {
            //读取db.properties文件
            InputStream resourceAsStream = JdbcUtil.class.getResourceAsStream("/druid.properties");
            //创建Properties对象
            Properties properties = new Properties();
            //加载流对象
            properties.load(resourceAsStream);
            //创建数据源对象
            dataSource = DruidDataSourceFactory.createDataSource(properties);

        } catch (Exception e) {
            e.printStackTrace();
        }

    }


    //获取DButils中核心类对象QueryRunner对象
    public static QueryRunner getQueryRunner(){
        return new QueryRunner(dataSource);//此时已经连接上数据库了
    }

}

实体类层 pojo

Music类

package com.java.pojo;

import java.io.Serializable;

//实体类
public class Music implements Serializable {

    private Integer musicId;
    private String musicName;
    private String musicAlbumName;
    private String musicAlbumPicurl;
    private String musicMp3url;
    private String musicArtistName;
    private String sheetId;


    public Integer getMusicId() {
        return musicId;
    }

    public void setMusicId(Integer musicId) {
        this.musicId = musicId;
    }

    public String getMusicName() {
        return musicName;
    }

    public void setMusicName(String musicName) {
        this.musicName = musicName;
    }

    public String getMusicAlbumName() {
        return musicAlbumName;
    }

    public void setMusicAlbumName(String musicAlbumName) {
        this.musicAlbumName = musicAlbumName;
    }

    public String getMusicAlbumPicurl() {
        return musicAlbumPicurl;
    }

    public void setMusicAlbumPicurl(String musicAlbumPicurl) {
        this.musicAlbumPicurl = musicAlbumPicurl;
    }

    public String getMusicMp3url() {
        return musicMp3url;
    }

    public void setMusicMp3url(String musicMp3url) {
        this.musicMp3url = musicMp3url;
    }

    public String getMusicArtistName() {
        return musicArtistName;
    }

    public void setMusicArtistName(String musicArtistName) {
        this.musicArtistName = musicArtistName;
    }

    public String getSheetId() {
        return sheetId;
    }

    public void setSheetId(String sheetId) {
        this.sheetId = sheetId;
    }

    @Override
    public String toString() {
        return "Music{" +
                "musicId=" + musicId +
                ", musicName='" + musicName + '\'' +
                ", musicAlbumName='" + musicAlbumName + '\'' +
                ", musicAlbumPicurl='" + musicAlbumPicurl + '\'' +
                ", musicMp3url='" + musicMp3url + '\'' +
                ", musicArtistName='" + musicArtistName + '\'' +
                ", sheetId='" + sheetId + '\'' +
                '}';
    }
}

sheet类

package com.java.pojo;

public class Sheet {
    private Integer id;
    private String sheetName;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getSheetName() {
        return sheetName;
    }

    public void setSheetName(String sheetName) {
        this.sheetName = sheetName;
    }

    @Override
    public String toString() {
        return "Sheet{" +
                "id=" + id +
                ", sheetName='" + sheetName + '\'' +
                '}';
    }
}

dao层

package com.java.dao;

import com.java.pojo.Music;

import java.util.List;

public interface MusicDao {
    public List<Music> findAll();

    public Music findById(String musicId);

    public List<Music> findByMusicName(String musicName);
}
package com.java.dao;

import com.java.pojo.Sheet;

import java.util.List;

public interface SheetDao {
    public List<Sheet> getSheet();

    public void insertSheet(String sheetName);
}

dao层实现类

package com.java.dao.impl;

import com.java.dao.MusicDao;
import com.java.pojo.Music;
import com.java.util.JdbcUtil;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;

import java.sql.SQLException;
import java.util.List;

public class MusicDaoImpl implements MusicDao {
    @Override
    public List<Music> findAll() {
        String sql = "select music_id musicId,music_name musicName,music_album_name musicAlbumName," +
                "music_album_picUrl musicAlbumPicurl,music_mp3Url musicMp3url," +
                "music_artist_name musicArtistName,sheet_id sheetId from tb_music";
        QueryRunner queryRunner = JdbcUtil.getQueryRunner();
        List<Music> musicList = null;
        try {
            musicList = queryRunner.query(sql, new BeanListHandler<Music>(Music.class));
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return musicList;
    }

    @Override
    public Music findById(String musicId) {
        String sql = "select music_id musicId,music_name musicName,music_album_name musicAlbumName," +
                "music_album_picUrl musicAlbumPicurl,music_mp3Url musicMp3url," +
                "music_artist_name musicArtistName,sheet_id sheetId from tb_music where music_id = ?";
        QueryRunner queryRunner = JdbcUtil.getQueryRunner();
        Music music = null;
        try {
            music = queryRunner.query(sql, new BeanHandler<Music>(Music.class), musicId);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return music;
    }

    @Override
    public List<Music> findByMusicName(String musicName) {
        String sql = "select music_id musicId,music_name musicName,music_album_name musicAlbumName," +
                "music_album_picUrl musicAlbumPicurl,music_mp3Url musicMp3url," +
                "music_artist_name musicArtistName,sheet_id sheetId from tb_music where music_name like ?";
        QueryRunner queryRunner = JdbcUtil.getQueryRunner();
        List<Music> musicList = null;
        try {
            musicList = queryRunner.query(sql, new BeanListHandler<Music>(Music.class), "%" + musicName + "%");
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return musicList;
    }
}
package com.java.dao.impl;

import com.java.dao.SheetDao;
import com.java.pojo.Sheet;
import com.java.util.JdbcUtil;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanListHandler;

import java.sql.SQLException;
import java.util.List;

public class SheetDaoImpl implements SheetDao {
    @Override
    public List<Sheet> getSheet() {
        String sql = "select id,sheet_name sheetName from tb_sheet";
        QueryRunner queryRunner = JdbcUtil.getQueryRunner();
        List<Sheet> query = null;
        try {
            query = queryRunner.query(sql, new BeanListHandler<Sheet>(Sheet.class));

        } catch (SQLException e) {
            e.printStackTrace();
        }
        return query;
    }

    @Override
    public void insertSheet(String sheetName) {
        String sql = "insert into tb_sheet(sheet_name) values (?)";
        QueryRunner queryRunner = JdbcUtil.getQueryRunner();
        try {
            int update = queryRunner.update(sql,sheetName);
        } catch (SQLException e) {
            e.printStackTrace();
        }

    }
}

service层

package com.java.service;

import com.java.pojo.Music;

import java.util.List;

public interface MusicService {
    public List<Music> findAll();

    public Music findById(String musicId);

    public List<Music> findByMusicName(String musicName);

    public Music nextSong(String musicId);

    public Music lastSong(String musicId);
}
package com.java.service;

import com.java.pojo.Sheet;

import java.util.List;

public interface SheetService {
    public List<Sheet> getSheet();

    public void addSheet(String sheetName);
}
package com.java.service.impl;

import com.java.dao.MusicDao;
import com.java.dao.impl.MusicDaoImpl;
import com.java.pojo.Music;
import com.java.service.MusicService;

import java.util.List;

public class MusicServiceImpl implements MusicService {
    @Override
    public List<Music> findAll() {
        MusicDao musicDao = new MusicDaoImpl();
        List<Music> musicList = musicDao.findAll();
        return musicList;
    }

    @Override
    public Music findById(String musicId) {
        MusicDao musicDao = new MusicDaoImpl();
        Music music = musicDao.findById(musicId);
        return music;
    }

    @Override
    public List<Music> findByMusicName(String musicName) {
        MusicDao musicDao = new MusicDaoImpl();
        List<Music> musicNameList = musicDao.findByMusicName(musicName);
        return musicNameList;
    }

    @Override
    public Music nextSong(String musicId) {
        MusicDao musicDao = new MusicDaoImpl();
        List<Music> musicList = musicDao.findAll();
        if (musicList.size()>0){
            int currentIndex = 0;
            for (int i = 0; i < musicList.size(); i++) {
                if (musicList.get(i).getMusicId().equals(Integer.parseInt(musicId))){
                    currentIndex = i;
                    break;
                }
            }
            int nextSongIndex = currentIndex == musicList.size() -1 ? 0 : currentIndex+1;
            return musicList.get(nextSongIndex);
        }else {
            throw new RuntimeException("歌曲列表不存在");
        }
    }

    @Override
    public Music lastSong(String musicId) {
        MusicDao musicDao = new MusicDaoImpl();
        List<Music> musicList = musicDao.findAll();
        if (musicList.size()>0){
            int currentIndex = 0;
            for (int i = 0; i < musicList.size(); i++) {
                if (musicList.get(i).getMusicId().equals(Integer.parseInt(musicId))){
                    currentIndex = i;
                    break;
                }
            }
            int lastSongIndex = currentIndex == 0 ? musicList.size()-1 : currentIndex-1;
            return musicList.get(lastSongIndex);
        }else {
            throw new RuntimeException("歌曲列表不存在");
        }
    }
}
package com.java.service.impl;

import com.java.dao.SheetDao;
import com.java.dao.impl.SheetDaoImpl;
import com.java.pojo.Sheet;
import com.java.service.SheetService;

import java.util.List;

public class SheetServiceImpl implements SheetService {
    @Override
    public List<Sheet> getSheet() {
        SheetDao sheetDao = new SheetDaoImpl();
        List<Sheet> sheet = sheetDao.getSheet();
        return sheet;
    }

    @Override
    public void addSheet(String sheetName) {
        SheetDao sheetDao = new SheetDaoImpl();
        sheetDao.insertSheet(sheetName);
    }
}

web层

package com.java.web;

import com.java.service.SheetService;
import com.java.service.impl.SheetServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/addSheetServlet")
public class AddSheetServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setCharacterEncoding("utf-8");
        SheetService sheetService = new SheetServiceImpl();
        String sheetName = request.getParameter("sheetName");
        sheetService.addSheet(sheetName);
    }
}
package com.java.web;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.java.dao.impl.MusicDaoImpl;
import com.java.pojo.Music;
import com.java.service.MusicService;
import com.java.service.impl.MusicServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@WebServlet("/musicFindAllServlet")
public class MusicFindAllServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //设置字符集
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=utf-8");
        //
        MusicService musicService = new MusicServiceImpl();
        List<Music> musicList = musicService.findAll();

        ObjectMapper objectMapper = new ObjectMapper();
        String jsonMusic = objectMapper.writeValueAsString(musicList);

        response.getWriter().write(jsonMusic);
    }
}
package com.java.web;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.java.pojo.Music;
import com.java.service.MusicService;
import com.java.service.impl.MusicServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/musicFindByIdServlet")
public class MusicFindByIdServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=utf-8");
        //
        MusicService musicService = new MusicServiceImpl();
        String musicId = request.getParameter("musicId");
        Music music = musicService.findById(musicId);

        ObjectMapper objectMapper = new ObjectMapper();
        String s = objectMapper.writeValueAsString(music);

        response.getWriter().write(s);
    }
}
package com.java.web;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.java.pojo.Music;
import com.java.service.MusicService;
import com.java.service.impl.MusicServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@WebServlet("/musicFindByMusicNameServlet")
public class MusicFindByMusicNameServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=utf-8");

        MusicService musicService = new MusicServiceImpl();
        String musicName = request.getParameter("musicName");
        List<Music> musicList = musicService.findByMusicName(musicName);
        ObjectMapper objectMapper = new ObjectMapper();
        String s = objectMapper.writeValueAsString(musicList);
        response.getWriter().write(s);
    }
}
package com.java.web;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.java.pojo.Music;
import com.java.service.MusicService;
import com.java.service.impl.MusicServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/musicLastSongServlet")
public class MusicLastSongServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=utf-8");

        String musicId = request.getParameter("musicId");
        MusicService musicService = new MusicServiceImpl();
        Music music = musicService.lastSong(musicId);
        ObjectMapper objectMapper = new ObjectMapper();
        String s = objectMapper.writeValueAsString(music);
        response.getWriter().write(s);
    }
}
package com.java.web;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.java.pojo.Music;
import com.java.service.MusicService;
import com.java.service.impl.MusicServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/musicNextSongServlet")
public class MusicNextSongServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=utf-8");

        String musicId = request.getParameter("musicId");
        MusicService musicService = new MusicServiceImpl();
        Music music = musicService.nextSong(musicId);
        ObjectMapper objectMapper = new ObjectMapper();
        String s = objectMapper.writeValueAsString(music);
        response.getWriter().write(s);
    }
}
package com.java.web;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.java.pojo.Sheet;
import com.java.service.SheetService;
import com.java.service.impl.SheetServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@WebServlet("/sheetServlet")
public class SheetServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=utf-8");

        SheetService sheetService = new SheetServiceImpl();
        List<Sheet> sheet = sheetService.getSheet();
        String s = new ObjectMapper().writeValueAsString(sheet);

        response.getWriter().write(s);
    }
}

接下来就是前端页面

在微信开发者工具中的文件结构是这样

前端的代码比较复杂这里就不过多整理了 如果有小伙伴想要源码可以加一下交流群

 下面是效果展示

 

 

 

 

 

 

 

 

 


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