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个性化音乐推荐系统

news 2025/5/24 18:18:31

python、pycharm、Django、Mysql都已经安装好了！

2025/3/13

一.打开CMD，安装Mysql驱动

pip install mysqlclient

二.项目初始化：

1.创建Django项目：

django-admin startproject project1
cd project1

2.创建应用：

python manage.py startapp MyApp

3.项目配置（均在settings.py中进行）：

（1）.添加应用

INSTALLED_APPS = [...'MyApp,
]

（2）.配置数据库（MySQL）：

DATABASES = {'default': {'ENGINE': 'django.db.backends.mysql','NAME': 'music_recommendation',    # 数据库名称'USER': 'root','PASSWORD': 'your_password','HOST': 'localhost','PORT': '3306',}
}

2025/3/14

一、数据库设计与迁移

1、定义模型（MyApp/models.py）

from django.db import modelsclass User(models.Model):username = models.CharField(max_length=100, unique=True)password = models.CharField(max_length=100)# 其他用户字段...class Music(models.Model):title = models.CharField(max_length=200)artist = models.CharField(max_length=100)audio_features = models.JSONField()  # 存储MFCC等特征lyrics = models.TextField()# 其他音乐字段...class UserBehavior(models.Model):user = models.ForeignKey(User, on_delete=models.CASCADE)music = models.ForeignKey(Music, on_delete=models.CASCADE)play_count = models.IntegerField(default=0)favorite = models.BooleanField(default=False)timestamp = models.DateTimeField(auto_now_add=True)class SentimentAnalysis(models.Model):user = models.ForeignKey(User, on_delete=models.CASCADE)music = models.ForeignKey(Music, on_delete=models.CASCADE)sentiment = models.CharField(max_length=50)  # 如"happy", "sad"timestamp = models.DateTimeField(auto_now_add=True)

2、生成迁移文件并执行

python manage.py makemigrations
python manage.py migrate

打开CMD，切换到Django项目目录

二、后端API开发

1.创建序列化器（MyApp/serializers.py）

from rest_framework import serializers
from .models import User, Music, UserBehavior, SentimentAnalysisclass UserSerializer(serializers.ModelSerializer):class Meta:model = Userfields = '__all__'class MusicSerializer(serializers.ModelSerializer):class Meta:model = Musicfields = '__all__'

2.创建视图（MyApp/views.py）

from rest_framework import serializers
from .models import User, Music, UserBehavior, SentimentAnalysisclass UserSerializer(serializers.ModelSerializer):class Meta:model = Userfields = '__all__'class MusicSerializer(serializers.ModelSerializer):class Meta:model = Musicfields = '__all__'

3.配置URL路由（MyApp/urls.py）

from django.urls import path
from .views import MusicListViewurlpatterns = [path('music/', MusicListView.as_view(), name='music-list'),
]

4.集成推荐算法

在MyApp/Recommendation.py中实现混合推荐算法

from .models import UserBehavior, Musicdef recommend_music(user_id):# 协同过滤 + 内容推荐逻辑# 返回推荐音乐ID列表return [1, 2, 3]  # 示例数据

三、前端开发

1.创建Vue项目

从CMD窗口切换到要创建项目的目录

npm install -g @vue/cli
vue create music-recommendation-frontend
cd music-recommendation-frontend

2.安装依赖

npm install axios vue-router

3.创建推荐页面组件（`src/views/Recommendation.vue`）

<template><div><h1>个性化推荐</h1><div v-for="music in recommendedMusics" :key="music.id"><h3>{{ music.title }}</h3><p>歌手: {{ music.artist }}</p></div></div>
</template><script>
import axios from 'axios'export default {data() {return {recommendedMusics: []}},mounted() {axios.get('http://localhost:8000/core/music/').then(response => {this.recommendedMusics = response.data})}
}
</script>