{"id":194901,"date":"2024-11-13T10:31:21","date_gmt":"2024-11-13T02:31:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194901\/"},"modified":"2024-11-13T10:31:23","modified_gmt":"2024-11-13T02:31:23","slug":"%e7%94%a8redis%e6%8b%af%e6%95%91%e6%ad%bb%e9%8e%96%e4%b8%80%e6%ac%a1%e6%88%90%e5%8a%9f%e7%9a%84%e5%98%97%e8%a9%a6%ef%bc%88redis%e8%a7%a3%e6%b1%ba%e6%ad%bb%e9%8e%96%e5%95%8f%e9%a1%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194901\/","title":{"rendered":"\u7528Redis\u62ef\u6551\u6b7b\u9396\u4e00\u6b21\u6210\u529f\u7684\u5617\u8a66\uff08redis\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\uff09"},"content":{"rendered":"

\u7528Redis\u62ef\u6551\u6b7b\u9396\u4e00\u6b21\u6210\u529f\u7684\u5617\u8a66\uff08redis\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\uff09<\/h1>\n

\u5728\u73fe\u4ee3\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6b7b\u9396\u662f\u4e00\u500b\u5e38\u898b\u4e14\u68d8\u624b\u7684\u554f\u984c\u3002\u7576\u591a\u500b\u9032\u7a0b\u6216\u7dda\u7a0b\u76f8\u4e92\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u8cc7\u6e90\u6642\uff0c\u7cfb\u7d71\u5c07\u7121\u6cd5\u7e7c\u7e8c\u904b\u884c\uff0c\u9019\u5c0d\u65bc\u4efb\u4f55\u4f9d\u8cf4\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u61c9\u7528\u4f86\u8aaa\u90fd\u662f\u4e00\u500b\u707d\u96e3\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u4e00\u4e9b\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\u7684\u6709\u6548\u65b9\u6cd5\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u4f86\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u969b\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u6b7b\u9396\uff1f<\/h2>\n

\u6b7b\u9396\u662f\u6307\u5169\u500b\u6216\u591a\u500b\u9032\u7a0b\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\uff0c\u56e0\u70ba\u7af6\u722d\u8cc7\u6e90\u800c\u9020\u6210\u7684\u4e00\u7a2e\u4e92\u76f8\u7b49\u5f85\u7684\u60c5\u6cc1\u3002\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u6240\u6709\u9032\u7a0b\u90fd\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\uff0c\u5c0e\u81f4\u7cfb\u7d71\u7684\u6027\u80fd\u4e0b\u964d\u751a\u81f3\u5d29\u6f70\u3002\u6b7b\u9396\u901a\u5e38\u767c\u751f\u5728\u591a\u7dda\u7a0b\u6216\u591a\u9032\u7a0b\u7684\u74b0\u5883\u4e2d\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u6216\u8cc7\u6e90\u9396\u5b9a\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n

Redis\u7684\u7279\u6027<\/h2>\n

Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u5b83\u7684\u9ad8\u6548\u6027\u548c\u9748\u6d3b\u6027\u4f7f\u5176\u6210\u70ba\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\u7684\u4e00\u500b\u7406\u60f3\u9078\u64c7\u3002Redis\u7684\u539f\u5b50\u6027\u64cd\u4f5c\u548c\u7c21\u55ae\u7684\u6578\u64da\u7d50\u69cb\u4f7f\u5f97\u5b83\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6e90\uff0c\u5f9e\u800c\u6e1b\u5c11\u6b7b\u9396\u7684\u767c\u751f\u3002<\/p>\n

\u4f7f\u7528Redis\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\u7684\u65b9\u6cd5<\/h2>\n

1. \u4f7f\u7528\u5206\u5e03\u5f0f\u9396<\/h3>\n

\u5206\u5e03\u5f0f\u9396\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u9632\u6b62\u591a\u500b\u9032\u7a0b\u540c\u6642\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\u3002Redis\u63d0\u4f9b\u4e86\u7c21\u55ae\u7684\u5206\u5e03\u5f0f\u9396\u5be6\u73fe\uff0c\u901a\u904eSETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n

SETNX lock_key unique_lock_value\nEXPIRE lock_key 10\n<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0cSETNX\u547d\u4ee4\u6703\u5617\u8a66\u8a2d\u7f6e\u4e00\u500b\u9396\uff0c\u5982\u679c\u9396\u5df2\u7d93\u5b58\u5728\uff0c\u5247\u8fd4\u56de0\u3002EXPIRE\u547d\u4ee4\u5247\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u9632\u6b62\u56e0\u70ba\u67d0\u500b\u9032\u7a0b\u5d29\u6f70\u800c\u5c0e\u81f4\u9396\u7121\u6cd5\u91cb\u653e\u7684\u60c5\u6cc1\u3002<\/p>\n
2. \u4f7f\u7528\u8d85\u6642\u6a5f\u5236<\/h3>\n
\u5728\u7372\u53d6\u9396\u6642\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u8d85\u6642\u6a5f\u5236\uff0c\u9632\u6b62\u6b7b\u9396\u7684\u767c\u751f\u3002\u5982\u679c\u4e00\u500b\u9032\u7a0b\u5728\u7372\u53d6\u9396\u5f8c\u8d85\u904e\u4e00\u5b9a\u6642\u9593\u4ecd\u672a\u91cb\u653e\u9396\uff0c\u5247\u81ea\u52d5\u91cb\u653e\u9396\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u4e0d\u6703\u56e0\u70ba\u67d0\u500b\u9032\u7a0b\u7684\u5931\u6557\u800c\u5c0e\u81f4\u6574\u500b\u7cfb\u7d71\u7684\u505c\u6eef\u3002<\/p>\n
if (getLock(\"lock_key\", \"unique_lock_value\", 10)) {\n    \/\/ \u57f7\u884c\u696d\u52d9\u908f\u8f2f\n    releaseLock(\"lock_key\", \"unique_lock_value\");\n}\n<\/code><\/pre>\n
3. \u4f7f\u7528Lua\u8173\u672c\u539f\u5b50\u64cd\u4f5c<\/h3>\n
Redis\u652f\u6301Lua\u8173\u672c\uff0c\u53ef\u4ee5\u5c07\u591a\u500b\u64cd\u4f5c\u5c01\u88dd\u5728\u4e00\u500b\u539f\u5b50\u64cd\u4f5c\u4e2d\u57f7\u884c\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5728\u64cd\u4f5c\u904e\u7a0b\u4e2d\u51fa\u73fe\u6b7b\u9396\u7684\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Lua\u8173\u672c\u7684\u793a\u4f8b\uff1a<\/p>\n
local lock = redis.call(\"GET\", KEYS[1])\nif lock == ARGV[1] then\n    return redis.call(\"DEL\", KEYS[1])\nelse\n    return 0\nend\n<\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
\u6b7b\u9396\u554f\u984c\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u662f\u4e0d\u53ef\u907f\u514d\u7684\uff0c\u4f46\u901a\u904e\u4f7f\u7528Redis\u7684\u5206\u5e03\u5f0f\u9396\u3001\u8d85\u6642\u6a5f\u5236\u548cLua\u8173\u672c\u7b49\u7279\u6027\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u6b7b\u9396\u7684\u767c\u751f\u3002\u9019\u4e9b\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 \u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u69cb\u5efa\u7a69\u5b9a\u7684\u61c9\u7528\u74b0\u5883\u3002\u7121\u8ad6\u662f \u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f \u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u5982\u4f55\u5229\u7528Redis\u6709\u6548\u89e3\u6c7a\u6b7b\u9396\u554f\u984c\uff0c\u5206\u4eab\u4e00\u6b21\u6210\u529f\u7684\u5617\u8a66\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\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-194901","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194901","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=194901"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194901\/revisions"}],"predecessor-version":[{"id":194902,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194901\/revisions\/194902"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194901"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194901"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}