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基于Spring Boot的云音乐平台设计与实现

news 2025/6/8 5:27:50

基于Spring Boot的云音乐平台设计与实现——集成协同过滤推荐算法的全栈项目实战

📖 文章目录

项目概述
技术选型与架构设计
数据库设计
后端核心功能实现
推荐算法设计与实现
前端交互设计
系统优化与性能提升
项目部署与测试
总结与展望

项目概述

🎯 项目背景

随着数字音乐产业的快速发展，个性化音乐推荐成为提升用户体验的关键技术。本项目基于Spring Boot框架，设计并实现了一个集成协同过滤推荐算法的云音乐平台，旨在为用户提供个性化的音乐推荐服务。

🎨 功能特性

用户管理系统：支持用户注册、登录、权限管理
音乐资源管理：音乐上传、分类、搜索功能
个性化推荐：基于协同过滤算法的智能推荐
播放历史追踪：用户行为数据收集与分析
后台管理系统：数据统计、用户管理、系统监控

🛠️ 技术亮点

采用前后端分离架构，提高系统可维护性
实现改进的协同过滤推荐算法，提升推荐准确率
集成播放行为分析，支持实时个性化推荐
响应式UI设计，支持多端适配

技术选型与架构设计

💻 技术栈

技术分类	具体技术	版本	作用描述
后端框架	Spring Boot	2.7.x	快速开发、自动配置
持久层	MyBatis	3.5.x	ORM映射、SQL优化
数据库	MySQL	8.0.x	数据存储、事务管理
前端框架	Layui	2.6.x	UI组件、表单验证
前端技术	HTML5/CSS3/JS	ES6+	用户界面、交互逻辑
构建工具	Maven	3.8.x	依赖管理、项目构建

🏗️ 系统架构

┌─────────────────────────────────────────────────────────┐
│                    表现层 (Presentation Layer)            │
├─────────────────────────────────────────────────────────┤
│  前端页面     │  管理后台     │  移动端适配     │  API接口  │
├─────────────────────────────────────────────────────────┤
│                    业务层 (Business Layer)               │
├─────────────────────────────────────────────────────────┤
│ 用户服务 │ 音乐服务 │ 推荐服务 │ 播放历史服务 │ 统计服务    │
├─────────────────────────────────────────────────────────┤
│                    数据访问层 (Data Access Layer)         │
├─────────────────────────────────────────────────────────┤
│     MyBatis Mapper     │     数据缓存     │    连接池      │
├─────────────────────────────────────────────────────────┤
│                    数据层 (Data Layer)                   │
└─────────────────────────────────────────────────────────┘
│              MySQL数据库集群              │
└─────────────────────────────────────────┘

📁 项目结构

src
├── main
│   ├── java
│   │   └── com.example.music
│   │       ├── controller     # 控制层
│   │       ├── service        # 业务层
│   │       ├── mapper         # 数据访问层
│   │       ├── entity         # 实体类
│   │       ├── config         # 配置类
│   │       ├── algorithm      # 推荐算法
│   │       └── utils          # 工具类
│   └── resources
│       ├── static             # 静态资源
│       ├── templates          # 模板文件
│       └── mapper             # SQL映射文件
└── test                       # 测试代码

数据库设计

🗄️ 核心表结构

1. 用户表 (users)

CREATE TABLE `users` (`id` int NOT NULL AUTO_INCREMENT COMMENT '用户ID',`username` varchar(50) NOT NULL COMMENT '用户名',`password` varchar(255) NOT NULL COMMENT '密码',`email` varchar(100) DEFAULT NULL COMMENT '邮箱',`role` tinyint DEFAULT '0' COMMENT '角色：0-普通用户，1-管理员',`avatar` varchar(255) DEFAULT NULL COMMENT '头像URL',`create_time` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`update_time` datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,PRIMARY KEY (`id`),UNIQUE KEY `uk_username` (`username`),KEY `idx_email` (`email`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户表';

2. 歌曲表 (songs)

CREATE TABLE `songs` (`id` int NOT NULL AUTO_INCREMENT COMMENT '歌曲ID',`name` varchar(100) NOT NULL COMMENT '歌曲名称',`singer` varchar(100) NOT NULL COMMENT '歌手',`album` varchar(100) DEFAULT NULL COMMENT '专辑',`duration` int DEFAULT NULL COMMENT '时长(秒)',`file_path` varchar(255) NOT NULL COMMENT '文件路径',`cover_image` varchar(255) DEFAULT NULL COMMENT '封面图片',`play_count` int DEFAULT '0' COMMENT '播放次数',`create_time` datetime DEFAULT CURRENT_TIMESTAMP,`update_time` datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,PRIMARY KEY (`id`),KEY `idx_singer` (`singer`),KEY `idx_name` (`name`),KEY `idx_play_count` (`play_count`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='歌曲表';

3. 播放历史表 (user_play_history)

CREATE TABLE `user_play_history` (`id` bigint NOT NULL AUTO_INCREMENT COMMENT '主键ID',`user_id` int NOT NULL COMMENT '用户ID',`song_id` int NOT NULL COMMENT '歌曲ID',`play_time` datetime NOT NULL COMMENT '播放时间',`play_duration` int DEFAULT '0' COMMENT '播放时长(秒)',`play_percentage` decimal(5,2) DEFAULT '0.00' COMMENT '播放完成度(%)',`device_type` varchar(20) DEFAULT 'web' COMMENT '设备类型',`ip_address` varchar(45) DEFAULT NULL COMMENT 'IP地址',`create_time` datetime DEFAULT CURRENT_TIMESTAMP,`update_time` datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,PRIMARY KEY (`id`),KEY `idx_user_id` (`user_id`),KEY `idx_song_id` (`song_id`),KEY `idx_play_time` (`play_time`),KEY `idx_user_song` (`user_id`, `song_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户播放历史表';

📊 数据库优化策略

索引优化：为高频查询字段建立复合索引
分区策略：播放历史表按月分区，提高查询效率
数据归档：历史数据定期归档，控制表大小

后端核心功能实现

🔐 用户认证与授权

JWT令牌实现

@Service
public class JwtTokenService {private static final String SECRET_KEY = "music_platform_secret";private static final long EXPIRATION_TIME = 24 * 60 * 60 * 1000; // 24小时public String generateToken(User user) {Map<String, Object> claims = new HashMap<>();claims.put("userId", user.getId());claims.put("username", user.getUsername());claims.put("role", user.getRole());return Jwts.builder().setClaims(claims).setSubject(user.getUsername()).setIssuedAt(new Date()).setExpiration(new Date(System.currentTimeMillis() + EXPIRATION_TIME)).signWith(SignatureAlgorithm.HS512, SECRET_KEY).compact();}public Claims getClaimsFromToken(String token) {return Jwts.parser().setSigningKey(SECRET_KEY).parseClaimsJws(token).getBody();}
}

权限拦截器

@Component
public class AuthInterceptor implements HandlerInterceptor {@Autowiredprivate JwtTokenService jwtTokenService;@Overridepublic boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {String token = request.getHeader("Authorization");if (StringUtils.isEmpty(token)) {throw new UnauthorizedException("未登录或token已过期");}try {Claims claims = jwtTokenService.getClaimsFromToken(token);// 将用户信息存储到ThreadLocalUserContext.setCurrentUser(claims);return true;} catch (Exception e) {throw new UnauthorizedException("token验证失败");}}
}

🎵 音乐服务实现

音乐上传与处理

@Service
@Transactional
public class MusicServiceImpl implements MusicService {@Autowiredprivate SongMapper songMapper;@Value("${file.upload.path}")private String uploadPath;public Result<Song> uploadMusic(MultipartFile file, SongUploadDTO songDTO) {try {// 1. 文件格式验证validateAudioFile(file);// 2. 保存文件String fileName = saveFile(file);// 3. 提取音频信息AudioMetadata metadata = extractAudioMetadata(file);// 4. 保存到数据库Song song = new Song();song.setName(songDTO.getName());song.setSinger(songDTO.getSinger());song.setAlbum(songDTO.getAlbum());song.setDuration(metadata.getDuration());song.setFilePath(fileName);songMapper.insert(song);return Result.success(song);} catch (Exception e) {log.error("音乐上传失败", e);return Result.error("上传失败：" + e.getMessage());}}private AudioMetadata extractAudioMetadata(MultipartFile file) throws Exception {// 使用FFmpeg或其他音频处理库提取元数据// 这里简化处理return new AudioMetadata();}
}

📈 播放历史记录服务

@Service
public class PlayHistoryServiceImpl implements PlayHistoryService {@Autowiredprivate UserPlayHistoryMapper playHistoryMapper;@Asyncpublic void recordPlayHistory(PlayHistoryDTO playDTO) {UserPlayHistory history = new UserPlayHistory();history.setUserId(playDTO.getUserId());history.setSongId(playDTO.getSongId());history.setPlayTime(new Date());history.setPlayDuration(playDTO.getPlayDuration());history.setPlayPercentage(calculatePercentage(playDTO));history.setDeviceType(playDTO.getDeviceType());history.setIpAddress(playDTO.getIpAddress());playHistoryMapper.insert(history);// 异步更新歌曲播放统计updateSongPlayStats(playDTO.getSongId());}private BigDecimal calculatePercentage(PlayHistoryDTO playDTO) {if (playDTO.getTotalDuration() == 0) {return BigDecimal.ZERO;}return BigDecimal.valueOf(playDTO.getPlayDuration()).divide(BigDecimal.valueOf(playDTO.getTotalDuration()), 2, RoundingMode.HALF_UP).multiply(BigDecimal.valueOf(100));}
}

前端交互设计

🎨 现代化UI实现

1. 响应式登录界面

/* 渐变背景与毛玻璃效果 */
body {background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);min-height: 100vh;display: flex;align-items: center;justify-content: center;
}.login-card {background: rgba(255, 255, 255, 0.95);backdrop-filter: blur(20px);border-radius: 20px;padding: 40px 30px;box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);animation: slideUp 0.8s ease-out;
}@keyframes slideUp {from {opacity: 0;transform: translateY(30px);}to {opacity: 1;transform: translateY(0);}
}

2. 播放历史追踪

class PlayHistoryTracker {constructor() {this.trackingInterval = null;this.startTime = null;this.currentSong = null;}startTracking(songInfo) {this.currentSong = songInfo;this.startTime = Date.now();// 每30秒记录一次播放进度this.trackingInterval = setInterval(() => {this.recordProgress();}, 30000);}recordProgress() {if (!this.currentSong || !this.startTime) return;const playDuration = Math.floor((Date.now() - this.startTime) / 1000);const totalDuration = this.currentSong.duration;const playPercentage = Math.min((playDuration / totalDuration) * 100, 100);// 只记录播放时长超过5秒的记录if (playDuration > 5) {this.sendPlayHistory({songId: this.currentSong.id,playDuration: playDuration,playPercentage: playPercentage.toFixed(2),deviceType: this.getDeviceType(),timestamp: new Date().toISOString()});}}sendPlayHistory(data) {fetch('/api/play-history/record', {method: 'POST',headers: {'Content-Type': 'application/json','Authorization': localStorage.getItem('token')},body: JSON.stringify(data)}).catch(error => {console.warn('播放历史记录失败:', error);});}getDeviceType() {const userAgent = navigator.userAgent.toLowerCase();if (/mobile|android|iphone|ipad/.test(userAgent)) {return 'mobile';}return 'web';}stopTracking() {if (this.trackingInterval) {clearInterval(this.trackingInterval);this.trackingInterval = null;}// 记录最终播放记录if (this.currentSong && this.startTime) {this.recordProgress();}this.currentSong = null;this.startTime = null;}
}// 全局播放追踪器
const playTracker = new PlayHistoryTracker();

3. 个人中心数据可视化

class PersonalCenter {constructor() {this.initializeCharts();this.loadUserStats();}async loadUserStats() {try {const response = await fetch('/api/user/stats', {headers: {'Authorization': localStorage.getItem('token')}});const stats = await response.json();this.updateStatsCards(stats.data);this.renderPlayTimeChart(stats.data.playTimeData);this.renderGenreChart(stats.data.genreData);} catch (error) {console.error('加载用户统计失败:', error);}}updateStatsCards(stats) {document.getElementById('total-plays').textContent = stats.totalPlays;document.getElementById('total-songs').textContent = stats.totalSongs;document.getElementById('total-duration').textContent = this.formatDuration(stats.totalDuration);document.getElementById('avg-completion').textContent = stats.avgCompletion + '%';}renderPlayTimeChart(data) {const ctx = document.getElementById('playTimeChart').getContext('2d');new Chart(ctx, {type: 'line',data: {labels: data.map(d => d.date),datasets: [{label: '播放时长(分钟)',data: data.map(d => d.duration),borderColor: '#667eea',backgroundColor: 'rgba(102, 126, 234, 0.1)',tension: 0.4}]},options: {responsive: true,plugins: {legend: {display: false}},scales: {y: {beginAtZero: true}}}});}formatDuration(seconds) {const hours = Math.floor(seconds / 3600);const minutes = Math.floor((seconds % 3600) / 60);return `${hours}小时${minutes}分钟`;}
}

系统优化与性能提升

⚡ 数据库优化

1. 索引优化策略

-- 播放历史表复合索引
CREATE INDEX idx_user_time ON user_play_history(user_id, play_time DESC);
CREATE INDEX idx_song_time ON user_play_history(song_id, play_time DESC);-- 用户相似度计算专用索引
CREATE INDEX idx_user_song_weight ON user_play_history(user_id, song_id, play_percentage);-- 分区策略 - 按月分区
ALTER TABLE user_play_history PARTITION BY RANGE (YEAR(play_time)*100 + MONTH(play_time)) (PARTITION p202401 VALUES LESS THAN (202402),PARTITION p202402 VALUES LESS THAN (202403),-- ... 更多分区PARTITION pmax VALUES LESS THAN MAXVALUE
);

2. 缓存策略

@Service
public class CacheService {@Autowiredprivate RedisTemplate<String, Object> redisTemplate;private static final String USER_SIMILARITY_KEY = "user:similarity:{}:{}";private static final String HOT_SONGS_KEY = "songs:hot";private static final String USER_RECOMMENDATIONS_KEY = "user:recommendations:{}";/*** 缓存用户相似度*/public void cacheUserSimilarity(Integer userId1, Integer userId2, Double similarity) {String key = USER_SIMILARITY_KEY.replace("{}", userId1.toString()).replace("{}", userId2.toString());redisTemplate.opsForValue().set(key, similarity, Duration.ofHours(6));}/*** 缓存热门歌曲*/@Scheduled(fixedRate = 3600000) // 每小时更新public void updateHotSongsCache() {List<Song> hotSongs = songMapper.findHotSongs(100);redisTemplate.opsForValue().set(HOT_SONGS_KEY, hotSongs, Duration.ofHours(1));}/*** 缓存用户推荐*/public void cacheUserRecommendations(Integer userId, List<Song> recommendations) {String key = USER_RECOMMENDATIONS_KEY.replace("{}", userId.toString());redisTemplate.opsForValue().set(key, recommendations, Duration.ofMinutes(30));}
}

🔄 异步处理优化

@Configuration
@EnableAsync
public class AsyncConfig {@Bean(name = "taskExecutor")public ThreadPoolTaskExecutor taskExecutor() {ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();executor.setCorePoolSize(10);executor.setMaxPoolSize(20);executor.setQueueCapacity(100);executor.setThreadNamePrefix("async-task-");executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());executor.initialize();return executor;}
}@Service
public class AsyncRecommendationService {@Async("taskExecutor")@Retryable(value = Exception.class, maxAttempts = 3)public CompletableFuture<List<Song>> generateRecommendationsAsync(Integer userId) {List<Song> recommendations = recommendationService.generateRecommendations(userId, 30);cacheService.cacheUserRecommendations(userId, recommendations);return CompletableFuture.completedFuture(recommendations);}
}

项目部署与测试

🚀 Docker部署配置

# Dockerfile
FROM openjdk:11-jre-slimMAINTAINER developer@musicplatform.comVOLUME /tmpCOPY target/music-platform-1.0.jar app.jarEXPOSE 8080ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]

# docker-compose.yml
version: '3.8'
services:mysql:image: mysql:8.0environment:MYSQL_ROOT_PASSWORD: root123MYSQL_DATABASE: music_platformvolumes:- mysql_data:/var/lib/mysql- ./sql/init.sql:/docker-entrypoint-initdb.d/init.sqlports:- "3306:3306"redis:image: redis:6.2-alpineports:- "6379:6379"volumes:- redis_data:/dataapp:build: .ports:- "8080:8080"depends_on:- mysql- redisenvironment:SPRING_PROFILES_ACTIVE: prodDB_HOST: mysqlREDIS_HOST: redisvolumes:mysql_data:redis_data:

🧪 单元测试

@SpringBootTest
@Transactional
class RecommendationServiceTest {@Autowiredprivate RecommendationService recommendationService;@MockBeanprivate UserPlayHistoryMapper playHistoryMapper;@Testvoid testCalculateUserSimilarity() {// 准备测试数据Integer userId1 = 1;Integer userId2 = 2;List<UserPlayHistory> user1History = createMockPlayHistory(userId1);List<UserPlayHistory> user2History = createMockPlayHistory(userId2);when(playHistoryMapper.findByUserId(userId1)).thenReturn(user1History);when(playHistoryMapper.findByUserId(userId2)).thenReturn(user2History);// 执行测试double similarity = recommendationService.calculateUserSimilarity(userId1, userId2);// 验证结果assertThat(similarity).isBetween(0.0, 1.0);}@Testvoid testGenerateRecommendations() {Integer userId = 1;int limit = 10;List<Song> recommendations = recommendationService.generateRecommendations(userId, limit);assertThat(recommendations).hasSize(limit);assertThat(recommendations).allMatch(song -> song.getId() != null);}private List<UserPlayHistory> createMockPlayHistory(Integer userId) {// 创建模拟播放历史数据return Arrays.asList(createPlayHistory(userId, 1, 180, new BigDecimal("85.5")),createPlayHistory(userId, 2, 240, new BigDecimal("92.0")),createPlayHistory(userId, 3, 150, new BigDecimal("78.2")));}
}

📊 性能测试

@Component
public class PerformanceMonitor {private final MeterRegistry meterRegistry;public PerformanceMonitor(MeterRegistry meterRegistry) {this.meterRegistry = meterRegistry;}@EventListenerpublic void handleRecommendationGenerated(RecommendationGeneratedEvent event) {Timer.Sample sample = Timer.start(meterRegistry);sample.stop(Timer.builder("recommendation.generation.time").description("推荐算法执行时间").register(meterRegistry));meterRegistry.counter("recommendation.generated.count","user_type", event.isNewUser() ? "new" : "existing").increment();}
}