Python中如何实现音乐的分布式缓存深度好文

pip install redis

import redis

# 连接到本地Redis实例
r = redis.Redis(host='localhost', port=6379, db=0)

# 测试连接
try:
    r.ping()
    print("Connected to Redis")
except redis.ConnectionError:
    print("Could not connect to Redis")

import redis
import base64

# 连接到Redis
r = redis.Redis(host='localhost', port=6379, db=0)

# 读取音乐文件
with open('music.mp3', 'rb') as f:
    music_data = f.read()

# 将音乐文件编码为Base64
encoded_music = base64.b64encode(music_data).decode('utf-8')

# 存储到Redis
r.set('music:file', encoded_music)

# 从Redis读取音乐文件
encoded_music_from_redis = r.get('music:file')
if encoded_music_from_redis:
    decoded_music = base64.b64decode(encoded_music_from_redis)
    with open('music_from_redis.mp3', 'wb') as f:
        f.write(decoded_music)
    print("Music file retrieved and saved successfully")
else:
    print("Music file not found in Redis")

import redis
import os

# 连接到Redis
r = redis.Redis(host='localhost', port=6379, db=0)

# 读取音乐文件路径
music_path = 'music.mp3'

# 存储文件路径到Redis
r.set('music:path', music_path)

# 从Redis读取文件路径
music_path_from_redis = r.get('music:path').decode('utf-8')

# 读取音乐文件
if os.path.exists(music_path_from_redis):
    with open(music_path_from_redis, 'rb') as f:
        music_data = f.read()
    print("Music file retrieved successfully")
else:
    print("Music file not found at the specified path")

import redis
import os

# 连接到Redis
r = redis.Redis(host='localhost', port=6379, db=0)

# 获取热门歌曲路径
def get_hot_song_path(song_id):
    key = f'song:{song_id}:path'
    song_path = r.get(key)
    if song_path:
        return song_path.decode('utf-8')
    else:
        # 从数据库中获取路径并存储到Redis
        song_path = get_song_path_from_db(song_id)
        if song_path:
            r.set(key, song_path)
        return song_path

# 从文件系统读取音乐文件
def get_music_file(song_id):
    song_path = get_hot_song_path(song_id)
    if song_path and os.path.exists(song_path):
        with open(song_path, 'rb') as f:
            return f.read()
    else:
        return None

# 示例：获取歌曲ID为123的音乐文件
music_data = get_music_file(123)
if music_data:
    print("Music file retrieved successfully")
else:
    print("Music file not found")