{"id":184302,"date":"2024-11-10T12:05:19","date_gmt":"2024-11-10T04:05:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/184302\/"},"modified":"2024-11-10T12:05:20","modified_gmt":"2024-11-10T04:05:20","slug":"%e4%bd%bf%e7%94%a8redis%e5%92%8c%e5%a4%9a%e7%b7%9a%e7%a8%8b%e9%80%b2%e8%a1%8c%e5%ae%9a%e6%9c%9f%e9%81%8e%e6%9c%9f%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\/184302\/","title":{"rendered":"\u4f7f\u7528Redis\u548c\u591a\u7dda\u7a0b\u9032\u884c\u5b9a\u671f\u904e\u671f\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8redis%e5%92%8c%e5%a4%9a%e7%b7%9a%e7%a8%8b%e9%80%b2%e8%a1%8c%e5%ae%9a%e6%9c%9f%e9%81%8e%e6%9c%9f%ef%bc%88redis%e9%81%8e%e6%9c%9f-%e5%a4%9a%e7%b7%9a%e7%a8%8b%ef%bc%89-JJXkMmhnRy\">\u4f7f\u7528Redis\u548c\u591a\u7dda\u7a0b\u9032\u884c\u5b9a\u671f\u904e\u671f\uff08redis\u904e\u671f \u591a\u7dda\u7a0b\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u5834\u666f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u7684\u904e\u671f\u529f\u80fd\u4ee5\u53ca\u591a\u7dda\u7a0b\u6280\u8853\u4f86\u5be6\u73fe\u5b9a\u671f\u904e\u671f\u7684\u64cd\u4f5c\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7684\u6027\u80fd\u548c\u97ff\u61c9\u901f\u5ea6\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6-JJXkMmhnRy\">Redis\u7684\u904e\u671f\u6a5f\u5236<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u9375\u7684\u904e\u671f\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u8a2d\u7f6e\u4e00\u500b\u9375\u7684\u751f\u5b58\u6642\u9593\uff08TTL\uff09\u3002\u7576\u9375\u7684\u751f\u5b58\u6642\u9593\u5230\u671f\u5f8c\uff0cRedis\u6703\u81ea\u52d5\u522a\u9664\u8a72\u9375\u3002\u9019\u4e00\u7279\u6027\u5c0d\u65bc\u9700\u8981\u5b9a\u671f\u6e05\u7406\u904e\u671f\u6578\u64da\u7684\u61c9\u7528\u5834\u666f\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p>\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>SET mykey \"Hello\"\nEXPIRE mykey 10  # \u8a2d\u7f6emykey\u572810\u79d2\u5f8c\u904e\u671f\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u9375\u201cmykey\u201d\u5c07\u572810\u79d2\u5f8c\u81ea\u52d5\u522a\u9664\u3002Redis\u9084\u63d0\u4f9b\u4e86\u5176\u4ed6\u76f8\u95dc\u547d\u4ee4\uff0c\u5982TTL\uff08\u67e5\u8a62\u5269\u9918\u751f\u5b58\u6642\u9593\uff09\u548cPERSIST\uff08\u79fb\u9664\u904e\u671f\u6642\u9593\uff09\u7b49\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e7%b7%9a%e7%a8%8b%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-JJXkMmhnRy\">\u591a\u7dda\u7a0b\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u55ae\u7dda\u7a0b\u7684\u8655\u7406\u65b9\u5f0f\u53ef\u80fd\u6703\u6210\u70ba\u6027\u80fd\u74f6\u9838\u3002\u591a\u7dda\u7a0b\u6280\u8853\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u61c9\u7528\u7684\u8655\u7406\u80fd\u529b\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u9032\u884c\u5927\u91cf\u6578\u64da\u64cd\u4f5c\u7684\u60c5\u6cc1\u4e0b\u3002\u4f7f\u7528\u591a\u7dda\u7a0b\u4f86\u8655\u7406Redis\u7684\u904e\u671f\u64cd\u4f5c\uff0c\u53ef\u4ee5\u6e1b\u5c11\u5ef6\u9072\u4e26\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%a4%9a%e7%b7%9a%e7%a8%8b%e9%80%b2%e8%a1%8credis%e9%81%8e%e6%9c%9f%e6%93%8d%e4%bd%9c-JJXkMmhnRy\">\u4f7f\u7528\u591a\u7dda\u7a0b\u9032\u884cRedis\u904e\u671f\u64cd\u4f5c<\/h2>\n<p>\u5728\u5be6\u73fe\u591a\u7dda\u7a0b\u7684Redis\u904e\u671f\u64cd\u4f5c\u6642\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u5275\u5efa\u591a\u500b\u7dda\u7a0b\uff0c\u6bcf\u500b\u7dda\u7a0b\u8ca0\u8cac\u8655\u7406\u4e00\u90e8\u5206\u6578\u64da\u3002<\/li>\n<li>\u4f7f\u7528Redis\u7684\u904e\u671f\u529f\u80fd\u4f86\u8a2d\u7f6e\u6bcf\u500b\u9375\u7684\u751f\u5b58\u6642\u9593\u3002<\/li>\n<li>\u5728\u7dda\u7a0b\u4e2d\u5b9a\u671f\u6aa2\u67e5\u548c\u522a\u9664\u904e\u671f\u7684\u9375\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Python\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u591a\u7dda\u7a0b\u4f86\u8655\u7406Redis\u7684\u904e\u671f\u64cd\u4f5c\uff1a<\/p>\n<pre><code>import redis\nimport threading\nimport time\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\ndef set_key(key, value, ttl):\n    r.set(key, value)\n    r.expire(key, ttl)\n\ndef check_expired_keys():\n    while True:\n        # \u7372\u53d6\u6240\u6709\u9375\n        keys = r.keys()\n        for key in keys:\n            if r.ttl(key) == -1:  # \u5982\u679c\u9375\u6c92\u6709\u904e\u671f\u6642\u9593\n                continue\n            if r.ttl(key) == 0:  # \u5982\u679c\u9375\u5df2\u7d93\u904e\u671f\n                r.delete(key)\n        time.sleep(5)  # \u6bcf5\u79d2\u6aa2\u67e5\u4e00\u6b21\n\n# \u5275\u5efa\u7dda\u7a0b\nthread = threading.Thread(target=check_expired_keys)\nthread.start()\n\n# \u8a2d\u7f6e\u4e00\u4e9b\u9375\nset_key('key1', 'value1', 10)\nset_key('key2', 'value2', 20)\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u7dda\u7a0b\u4f86\u5b9a\u671f\u6aa2\u67e5\u904e\u671f\u7684\u9375\uff0c\u4e26\u522a\u9664\u5b83\u5011\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5373\u4f7f\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u904e\u671f\u7684\u9375\u4e5f\u80fd\u5920\u88ab\u53ca\u6642\u6e05\u7406\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-JJXkMmhnRy\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528Redis\u7684\u904e\u671f\u529f\u80fd\u7d50\u5408\u591a\u7dda\u7a0b\u6280\u8853\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u61c9\u7528\u7684\u6027\u80fd\u548c\u6578\u64da\u7ba1\u7406\u6548\u7387\u3002\u901a\u904e\u5408\u7406\u8a2d\u8a08\u904e\u671f\u7b56\u7565\u548c\u591a\u7dda\u7a0b\u8655\u7406\uff0c\u53ef\u4ee5\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u4fdd\u6301\u826f\u597d\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u8cc7\u6e90\u5229\u7528\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9019\u7a2e\u65b9\u6cd5\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c\u5176\u4ed6\u670d\u52d9\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528Redis\u548c\u591a\u7dda\u7a0b\u6280\u8853\u5be6\u73fe\u9ad8\u6548\u7684\u5b9a\u671f\u904e\u671f\u7ba1\u7406\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6027\u80fd\u548c\u7cfb\u7d71\u6548\u7387\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-184302","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184302","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=184302"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184302\/revisions"}],"predecessor-version":[{"id":184303,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/184302\/revisions\/184303"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=184302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=184302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=184302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}