{"id":167693,"date":"2024-11-06T04:16:25","date_gmt":"2024-11-05T20:16:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/167693\/"},"modified":"2024-11-06T04:16:26","modified_gmt":"2024-11-05T20:16:26","slug":"%e5%88%a9%e7%94%a8redis%e5%af%a6%e7%8f%be%e7%86%b1%e9%bb%9e%e6%95%b8%e6%93%9a%e7%b7%a9%e5%ad%98%e9%98%b2%e6%ad%a2%e6%93%8a%e7%a9%bf%ef%bc%88redis%e7%86%b1%e9%bb%9e%e6%95%b8%e6%93%9a%e6%93%8a%e7%a9%bf","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/167693\/","title":{"rendered":"\u5229\u7528Redis\u5be6\u73fe\u71b1\u9ede\u6578\u64da\u7de9\u5b58\u9632\u6b62\u64ca\u7a7f\uff08redis\u71b1\u9ede\u6578\u64da\u64ca\u7a7f\uff09"},"content":{"rendered":"

\u5229\u7528Redis\u5be6\u73fe\u71b1\u9ede\u6578\u64da\u7de9\u5b58\u9632\u6b62\u64ca\u7a7f\uff08redis\u71b1\u9ede\u6578\u64da\u64ca\u7a7f\uff09<\/h1>\n

\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u6578\u64da\u7684\u9ad8\u6548\u5b58\u53d6\u662f\u7cfb\u7d71\u6027\u80fd\u7684\u95dc\u9375\u3002\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u589e\u52a0\uff0c\u67d0\u4e9b\u6578\u64da\u53ef\u80fd\u6703\u6210\u70ba\u201c\u71b1\u9ede\u201d\uff0c\u5373\u5728\u77ed\u6642\u9593\u5167\u88ab\u5927\u91cf\u8acb\u6c42\u3002\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u82e5\u5f8c\u7aef\u6578\u64da\u5eab\u7121\u6cd5\u627f\u53d7\u5982\u6b64\u9ad8\u7684\u8acb\u6c42\u91cf\uff0c\u4fbf\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u5eab\u7684\u64ca\u7a7f\uff0c\u9032\u800c\u5f71\u97ff\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u80fd\u5920\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u71b1\u9ede\u6578\u64da\u7684\u7de9\u5b58\uff0c\u9632\u6b62\u6578\u64da\u5eab\u64ca\u7a7f\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u71b1\u9ede\u6578\u64da\u64ca\u7a7f\uff1f<\/h2>\n

\u71b1\u9ede\u6578\u64da\u64ca\u7a7f\u662f\u6307\u5728\u9ad8\u4e26\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u67d0\u4e9b\u7279\u5b9a\u7684\u6578\u64da\u56e0\u70ba\u672a\u88ab\u7de9\u5b58\u800c\u76f4\u63a5\u8acb\u6c42\u5f8c\u7aef\u6578\u64da\u5eab\uff0c\u5c0e\u81f4\u6578\u64da\u5eab\u77ac\u9593\u627f\u53d7\u5927\u91cf\u8acb\u6c42\uff0c\u6700\u7d42\u53ef\u80fd\u9020\u6210\u6578\u64da\u5eab\u5d29\u6f70\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u67d0\u4e9b\u71b1\u9580\u5546\u54c1\u3001\u71b1\u9580\u6587\u7ae0\u6216\u7279\u5b9a\u7528\u6236\u8cc7\u6599\u7b49\u60c5\u6cc1\u4e0b\u3002<\/p>\n

Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

Redis\u662f\u4e00\u7a2e\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\u7531\u65bc\u5176\u9ad8\u6548\u7684\u5167\u5b58\u5b58\u53d6\u7279\u6027\uff0cRedis\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u7cfb\u7d71\u4e2d\u3002\u4f7f\u7528Redis\u4f5c\u70ba\u7de9\u5b58\u5c64\uff0c\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n

\u5982\u4f55\u5229\u7528Redis\u9632\u6b62\u71b1\u9ede\u6578\u64da\u64ca\u7a7f<\/h2>\n

1. \u8a2d\u7f6e\u5408\u7406\u7684\u7de9\u5b58\u7b56\u7565<\/h3>\n

\u5728\u4f7f\u7528Redis\u9032\u884c\u7de9\u5b58\u6642\uff0c\u9996\u5148\u9700\u8981\u8a2d\u7f6e\u5408\u7406\u7684\u7de9\u5b58\u7b56\u7565\u3002\u53ef\u4ee5\u6839\u64da\u696d\u52d9\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u7de9\u5b58\u904e\u671f\u6642\u9593\uff0c\u907f\u514d\u6578\u64da\u9577\u6642\u9593\u4f54\u7528\u5167\u5b58\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u4e00\u4e9b\u7d93\u5e38\u8b8a\u52d5\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u8f03\u77ed\u7684\u904e\u671f\u6642\u9593\uff0c\u800c\u5c0d\u65bc\u7a69\u5b9a\u7684\u6578\u64da\u5247\u53ef\u4ee5\u8a2d\u7f6e\u8f03\u9577\u7684\u904e\u671f\u6642\u9593\u3002<\/p>\n

2. \u4f7f\u7528\u4e92\u65a5\u9396<\/h3>\n

\u5728\u9ad8\u4e26\u767c\u8acb\u6c42\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e92\u65a5\u9396\u4f86\u9632\u6b62\u591a\u500b\u8acb\u6c42\u540c\u6642\u67e5\u8a62\u5f8c\u7aef\u6578\u64da\u5eab\u3002\u7576\u4e00\u500b\u8acb\u6c42\u6b63\u5728\u67e5\u8a62\u6578\u64da\u6642\uff0c\u5176\u4ed6\u8acb\u6c42\u53ef\u4ee5\u7b49\u5f85\uff0c\u76f4\u5230\u8a72\u8acb\u6c42\u5b8c\u6210\u4e26\u5c07\u6578\u64da\u7de9\u5b58\u5230Redis\u4e2d\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\u3002<\/p>\n

\n# \u4f7f\u7528Redis\u7684SETNX\u547d\u4ee4\u5be6\u73fe\u4e92\u65a5\u9396\ndef get_data(key):\n    lock_key = f\"lock:{key}\"\n    if redis.setnx(lock_key, 1):  # \u5617\u8a66\u7372\u53d6\u9396\n        try:\n            data = redis.get(key)\n            if not data:\n                # \u5f9e\u6578\u64da\u5eab\u7372\u53d6\u6578\u64da\n                data = fetch_from_db(key)\n                redis.set(key, data, ex=60)  # \u8a2d\u7f6e\u7de9\u5b58\n            return data\n        finally:\n            redis.delete(lock_key)  # \u91cb\u653e\u9396\n    else:\n        # \u7b49\u5f85\u9396\u91cb\u653e\n        time.sleep(0.1)\n        return get_data(key)\n<\/code><\/pre>\n
3. \u71b1\u9ede\u6578\u64da\u9810\u71b1<\/h3>\n
\u5c0d\u65bc\u9810\u6e2c\u5230\u7684\u71b1\u9ede\u6578\u64da\uff0c\u53ef\u4ee5\u5728\u7cfb\u7d71\u555f\u52d5\u6642\u6216\u6578\u64da\u66f4\u65b0\u6642\u4e3b\u52d5\u5c07\u5176\u52a0\u8f09\u5230Redis\u4e2d\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5728\u9ad8\u4e26\u767c\u8acb\u6c42\u6642\u76f4\u63a5\u67e5\u8a62\u5f8c\u7aef\u6578\u64da\u5eab\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u6578\u64da\u5eab\u7684\u58d3\u529b\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u71b1\u9ede\u6578\u64da\u7684\u64ca\u7a7f\u554f\u984c\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\u662f\u4e0d\u53ef\u5ffd\u8996\u7684\u6311\u6230\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e\u7de9\u5b58\u7b56\u7565\u3001\u4f7f\u7528\u4e92\u65a5\u9396\u4ee5\u53ca\u9810\u71b1\u71b1\u9ede\u6578\u64da\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5229\u7528Redis\u4f86\u9632\u6b62\u6578\u64da\u5eab\u7684\u64ca\u7a7f\uff0c\u5f9e\u800c\u63d0\u5347\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u53d6\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u9999\u6e2fVPS<\/a>\u548c\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5229\u7528Redis\u5be6\u73fe\u71b1\u9ede\u6578\u64da\u7de9\u5b58\uff0c\u9632\u6b62\u6578\u64da\u64ca\u7a7f\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\uff0c\u78ba\u4fdd\u9ad8\u6548\u6578\u64da\u8a2a\u554f\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-167693","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167693","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=167693"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167693\/revisions"}],"predecessor-version":[{"id":167694,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167693\/revisions\/167694"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=167693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=167693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=167693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}