{"id":183056,"date":"2024-11-10T01:34:20","date_gmt":"2024-11-09T17:34:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183056\/"},"modified":"2024-11-10T01:34:21","modified_gmt":"2024-11-09T17:34:21","slug":"%e5%af%a6%e7%8f%beredis%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%e7%9a%84%e5%a4%9a%e7%b7%9a%e7%a8%8b%e6%96%b9%e6%a1%88%ef%bc%88redis%e9%81%8e%e6%9c%9f-%e5%a4%9a%e7%b7%9a%e7%a8%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183056\/","title":{"rendered":"\u5be6\u73feRedis\u904e\u671f\u7b56\u7565\u7684\u591a\u7dda\u7a0b\u65b9\u6848\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09"},"content":{"rendered":"<h1 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id=\"%e5%af%a6%e7%8f%be%e5%a4%9a%e7%b7%9a%e7%a8%8b%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%e7%9a%84%e7%a4%ba%e4%be%8b-vbvwrOLGqh\">\u5be6\u73fe\u591a\u7dda\u7a0b\u904e\u671f\u7b56\u7565\u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Python\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u591a\u7dda\u7a0b\u4f86\u5be6\u73feRedis\u7684\u904e\u671f\u9375\u522a\u9664\uff1a<\/p>\n<pre><code>\nimport redis\nimport threading\nimport time\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\ndef delete_expired_keys():\n    while True:\n        # \u7372\u53d6\u6240\u6709\u9375\n        keys = r.keys('*')\n        for key in keys:\n            # \u6aa2\u67e5\u9375\u662f\u5426\u904e\u671f\n            if r.ttl(key) == -1:\n                continue\n            elif r.ttl(key) == 0:\n                r.delete(key)\n                print(f\"Deleted expired key: {key.decode('utf-8')}\")\n        time.sleep(1)  # \u6bcf\u79d2\u6aa2\u67e5\u4e00\u6b21\n\n# \u5275\u5efa\u591a\u500b\u7dda\u7a0b\nthreads = []\nfor i in range(5):\n    t = threading.Thread(target=delete_expired_keys)\n    threads.append(t)\n    t.start()\n\n# \u7b49\u5f85\u6240\u6709\u7dda\u7a0b\u5b8c\u6210\nfor t in threads:\n    t.join()\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e94\u500b\u7dda\u7a0b\uff0c\u6bcf\u500b\u7dda\u7a0b\u90fd\u6703\u5b9a\u671f\u6aa2\u67e5\u4e26\u522a\u9664\u904e\u671f\u7684\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u904e\u671f\u9375\u7684\u522a\u9664\u6548\u7387\uff0c\u6e1b\u5c11\u5167\u5b58\u7684\u6d6a\u8cbb\u3002<\/p>\n<h2 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