{"id":183562,"date":"2024-11-10T05:51:19","date_gmt":"2024-11-09T21:51:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183562\/"},"modified":"2024-11-10T05:51:20","modified_gmt":"2024-11-09T21:51:20","slug":"%e4%bd%bf%e7%94%a8-redis-%e5%af%a6%e7%8f%be%e9%81%8e%e6%9c%9f%e6%95%b8%e6%93%9a%e7%9a%84%e8%bd%89%e7%a7%bb%ef%bc%88redis%e9%81%8e%e6%9c%9f%e8%bd%89%e7%a7%bb%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183562\/","title":{"rendered":"\u4f7f\u7528 Redis \u5be6\u73fe\u904e\u671f\u6578\u64da\u7684\u8f49\u79fb\uff08redis\u904e\u671f\u8f49\u79fb\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8-redis-%e5%af%a6%e7%8f%be%e9%81%8e%e6%9c%9f%e6%95%b8%e6%93%9a%e7%9a%84%e8%bd%89%e7%a7%bb%ef%bc%88redis%e9%81%8e%e6%9c%9f%e8%bd%89%e7%a7%bb%ef%bc%89-cCDpwVrskr\">\u4f7f\u7528 Redis \u5be6\u73fe\u904e\u671f\u6578\u64da\u7684\u8f49\u79fb\uff08redis\u904e\u671f\u8f49\u79fb\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u5982\u4f55\u6709\u6548\u7ba1\u7406\u548c\u5229\u7528\u6578\u64da\u6210\u70ba\u4e86\u4f01\u696d\u6210\u529f\u7684\u95dc\u9375\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u61c9\u7528\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528 Redis \u5be6\u73fe\u904e\u671f\u6578\u64da\u7684\u8f49\u79fb\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6-cCDpwVrskr\">Redis \u7684\u904e\u671f\u6a5f\u5236<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u5167\u5efa\u7684\u904e\u671f\u6a5f\u5236\uff0c\u5141\u8a31\u7528\u6236\u70ba\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u7576\u4e00\u500b\u9375\u7684\u904e\u671f\u6642\u9593\u5230\u9054\u6642\uff0cRedis \u6703\u81ea\u52d5\u5c07\u5176\u522a\u9664\u3002\u9019\u4e00\u7279\u6027\u5c0d\u65bc\u7ba1\u7406\u81e8\u6642\u6578\u64da\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\u6703\u8a71\u4fe1\u606f\u6216\u7de9\u5b58\u6578\u64da\u3002<\/p>\n<p>\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>SET mykey \"value\"\nEXPIRE mykey 60  # \u8a2d\u7f6e mykey \u5728 60 \u79d2\u5f8c\u904e\u671f\n<\/code><\/pre>\n<p>\u7136\u800c\uff0c\u5c0d\u65bc\u67d0\u4e9b\u61c9\u7528\u5834\u666f\uff0c\u50c5\u50c5\u522a\u9664\u904e\u671f\u6578\u64da\u53ef\u80fd\u4e0d\u5920\uff0c\u958b\u767c\u8005\u53ef\u80fd\u5e0c\u671b\u5c07\u9019\u4e9b\u6578\u64da\u8f49\u79fb\u5230\u5176\u4ed6\u5b58\u5132\u7cfb\u7d71\u4e2d\uff0c\u4ee5\u4fbf\u9032\u884c\u5f8c\u7e8c\u5206\u6790\u6216\u5099\u4efd\u3002<\/p>\n<h2 id=\"%e9%81%8e%e6%9c%9f%e6%95%b8%e6%93%9a%e7%9a%84%e8%bd%89%e7%a7%bb%e7%ad%96%e7%95%a5-cCDpwVrskr\">\u904e\u671f\u6578\u64da\u7684\u8f49\u79fb\u7b56\u7565<\/h2>\n<p>\u8981\u5be6\u73fe\u904e\u671f\u6578\u64da\u7684\u8f49\u79fb\uff0c\u901a\u5e38\u6709\u5e7e\u7a2e\u7b56\u7565\u53ef\u4ee5\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u4e3b\u52d5\u8f49\u79fb\uff1a<\/strong>\u5728\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u7684\u540c\u6642\uff0c\u5c07\u6578\u64da\u8907\u88fd\u5230\u53e6\u4e00\u500b\u6578\u64da\u5eab\u6216\u5b58\u5132\u7cfb\u7d71\u4e2d\u3002<\/li>\n<li><strong>\u88ab\u52d5\u8f49\u79fb\uff1a<\/strong>\u4f7f\u7528 Redis \u7684\u9375\u904e\u671f\u4e8b\u4ef6\uff0c\u7576\u9375\u904e\u671f\u6642\u89f8\u767c\u4e00\u500b\u4e8b\u4ef6\uff0c\u5c07\u6578\u64da\u8f49\u79fb\u5230\u5176\u4ed6\u5b58\u5132\u7cfb\u7d71\u3002<\/li>\n<\/ul>\n<h3 id=\"%e4%b8%bb%e5%8b%95%e8%bd%89%e7%a7%bb%e7%a4%ba%e4%be%8b-cCDpwVrskr\">\u4e3b\u52d5\u8f49\u79fb\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4e3b\u52d5\u8f49\u79fb\u7684\u793a\u4f8b\uff0c\u4f7f\u7528 Python \u548c Redis \u7684\u5ba2\u6236\u7aef\u5eab\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u8a2d\u7f6e\u6578\u64da\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\nkey = \"session:12345\"\nvalue = {\"user_id\": 1, \"data\": \"some data\"}\nr.set(key, value)\nr.expire(key, 60)  # 60\u79d2\u5f8c\u904e\u671f\n\n# \u4e3b\u52d5\u8f49\u79fb\u6578\u64da\ndef transfer_data(key):\n    value = r.get(key)\n    if value:\n        # \u5c07\u6578\u64da\u8f49\u79fb\u5230\u5176\u4ed6\u5b58\u5132\u7cfb\u7d71\uff08\u4f8b\u5982 MySQL\uff09\n        # \u9019\u88e1\u53ef\u4ee5\u6dfb\u52a0\u6578\u64da\u5eab\u63d2\u5165\u7684\u4ee3\u78bc\n        print(f\"Transferring data for key: {key}, value: {value}\")\n\n# \u8a2d\u7f6e\u4e00\u500b\u5b9a\u6642\u4efb\u52d9\u4f86\u6aa2\u67e5\u904e\u671f\u9375\nimport time\n\nwhile True:\n    time.sleep(10)  # \u6bcf10\u79d2\u6aa2\u67e5\u4e00\u6b21\n    if not r.exists(key):\n        transfer_data(key)\n        break\n<\/code><\/pre>\n<h3 id=\"%e8%a2%ab%e5%8b%95%e8%bd%89%e7%a7%bb%e7%a4%ba%e4%be%8b-cCDpwVrskr\">\u88ab\u52d5\u8f49\u79fb\u793a\u4f8b<\/h3>\n<p>\u88ab\u52d5\u8f49\u79fb\u53ef\u4ee5\u901a\u904e Redis \u7684\u767c\u5e03\/\u8a02\u95b1\u529f\u80fd\u4f86\u5be6\u73fe\u3002\u7576\u9375\u904e\u671f\u6642\uff0cRedis \u6703\u767c\u9001\u4e00\u500b\u4e8b\u4ef6\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8a02\u95b1\u9019\u500b\u4e8b\u4ef6\u4e26\u57f7\u884c\u8f49\u79fb\u64cd\u4f5c\u3002<\/p>\n<pre><code>import redis\n\ndef handle_expired_event(message):\n    key = message['data']\n    # \u5c07\u6578\u64da\u8f49\u79fb\u5230\u5176\u4ed6\u5b58\u5132\u7cfb\u7d71\n    print(f\"Key expired: {key}. Transferring data...\")\n\n# \u9023\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u8a02\u95b1\u904e\u671f\u4e8b\u4ef6\np = r.pubsub()\np.psubscribe('__keyevent@0__:expired')\n\nfor message in p.listen():\n    if message['type'] == 'pmessage':\n        handle_expired_event(message)\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-cCDpwVrskr\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528 Redis \u5be6\u73fe\u904e\u671f\u6578\u64da\u7684\u8f49\u79fb\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u5229\u7528\u81e8\u6642\u6578\u64da\u3002\u7121\u8ad6\u662f\u4e3b\u52d5\u8f49\u79fb\u9084\u662f\u88ab\u52d5\u8f49\u79fb\uff0c\u958b\u767c\u8005\u90fd\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u7b56\u7565\u3002\u9019\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u7528\u6027\uff0c\u9084\u80fd\u70ba\u5f8c\u7e8c\u7684\u6578\u64da\u5206\u6790\u548c\u5099\u4efd\u63d0\u4f9b\u4fbf\u5229\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Redis \u5be6\u4f8b\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528 Redis \u5be6\u73fe\u904e\u671f\u6578\u64da\u7684\u8f49\u79fb\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u8207\u8cc7\u6e90\u6700\u4f73\u5316\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-183562","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=183562"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183562\/revisions"}],"predecessor-version":[{"id":183563,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183562\/revisions\/183563"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}