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个性化音乐推荐系统

article 2025/3/14 23:16:06

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 models

class 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, SentimentAnalysis

class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = '__all__'

class MusicSerializer(serializers.ModelSerializer):
    class Meta:
        model = Music
        fields = '__all__'

2.创建视图（MyApp/views.py）

from rest_framework import serializers
from .models import User, Music, UserBehavior, SentimentAnalysis

class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = '__all__'

class MusicSerializer(serializers.ModelSerializer):
    class Meta:
        model = Music
        fields = '__all__'

3.配置URL路由（MyApp/urls.py）

from django.urls import path
from .views import MusicListView

urlpatterns = [
    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, Music

def 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>