Files
MediaCrawler/cache/redis_cache.py
程序员阿江(Relakkes) 157ddfb21b i18n: translate all Chinese comments, docstrings, and logger messages to English
Comprehensive translation of Chinese text to English across the entire codebase:

- api/: FastAPI server documentation and logger messages
- cache/: Cache abstraction layer comments and docstrings
- database/: Database models and MongoDB store documentation
- media_platform/: All platform crawlers (Bilibili, Douyin, Kuaishou, Tieba, Weibo, Xiaohongshu, Zhihu)
- model/: Data model documentation
- proxy/: Proxy pool and provider documentation
- store/: Data storage layer comments
- tools/: Utility functions and browser automation
- test/: Test file documentation

Preserved: Chinese disclaimer header (lines 10-18) for legal compliance

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-26 23:27:19 +08:00

97 lines
2.9 KiB
Python

# -*- coding: utf-8 -*-
# Copyright (c) 2025 relakkes@gmail.com
#
# This file is part of MediaCrawler project.
# Repository: https://github.com/NanmiCoder/MediaCrawler/blob/main/cache/redis_cache.py
# GitHub: https://github.com/NanmiCoder
# Licensed under NON-COMMERCIAL LEARNING LICENSE 1.1
#
# 声明:本代码仅供学习和研究目的使用。使用者应遵守以下原则:
# 1. 不得用于任何商业用途。
# 2. 使用时应遵守目标平台的使用条款和robots.txt规则。
# 3. 不得进行大规模爬取或对平台造成运营干扰。
# 4. 应合理控制请求频率,避免给目标平台带来不必要的负担。
# 5. 不得用于任何非法或不当的用途。
#
# 详细许可条款请参阅项目根目录下的LICENSE文件。
# 使用本代码即表示您同意遵守上述原则和LICENSE中的所有条款。
# -*- coding: utf-8 -*-
# @Author : relakkes@gmail.com
# @Name : Programmer AJiang-Relakkes
# @Time : 2024/5/29 22:57
# @Desc : RedisCache implementation
import pickle
import time
from typing import Any, List
from redis import Redis
from cache.abs_cache import AbstractCache
from config import db_config
class RedisCache(AbstractCache):
def __init__(self) -> None:
# Connect to redis, return redis client
self._redis_client = self._connet_redis()
@staticmethod
def _connet_redis() -> Redis:
"""
Connect to redis, return redis client, configure redis connection information as needed
:return:
"""
return Redis(
host=db_config.REDIS_DB_HOST,
port=db_config.REDIS_DB_PORT,
db=db_config.REDIS_DB_NUM,
password=db_config.REDIS_DB_PWD,
)
def get(self, key: str) -> Any:
"""
Get the value of a key from the cache and deserialize it
:param key:
:return:
"""
value = self._redis_client.get(key)
if value is None:
return None
return pickle.loads(value)
def set(self, key: str, value: Any, expire_time: int) -> None:
"""
Set the value of a key in the cache and serialize it
:param key:
:param value:
:param expire_time:
:return:
"""
self._redis_client.set(key, pickle.dumps(value), ex=expire_time)
def keys(self, pattern: str) -> List[str]:
"""
Get all keys matching the pattern
"""
return [key.decode() for key in self._redis_client.keys(pattern)]
if __name__ == '__main__':
redis_cache = RedisCache()
# basic usage
redis_cache.set("name", "Programmer AJiang-Relakkes", 1)
print(redis_cache.get("name")) # Relakkes
print(redis_cache.keys("*")) # ['name']
time.sleep(2)
print(redis_cache.get("name")) # None
# special python type usage
# list
redis_cache.set("list", [1, 2, 3], 10)
_value = redis_cache.get("list")
print(_value, f"value type:{type(_value)}") # [1, 2, 3]