{"id":97290,"date":"2024-10-20T16:36:18","date_gmt":"2024-10-20T08:36:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97290\/"},"modified":"2024-10-20T16:36:18","modified_gmt":"2024-10-20T08:36:18","slug":"redis-%e8%99%95%e7%90%86%e7%86%b1%e9%bb%9e%e9%ab%98%e4%b8%a6%e7%99%bc%e7%9a%84%e5%88%a9%e5%99%a8%ef%bc%88redis%e7%86%b1%e9%bb%9e%e9%ab%98%e4%b8%a6%e7%99%bc%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97290\/","title":{"rendered":"Redis \u8655\u7406\u71b1\u9ede\u9ad8\u4e26\u767c\u7684\u5229\u5668\uff08redis\u71b1\u9ede\u9ad8\u4e26\u767c\uff09"},"content":{"rendered":"<h1 id=\"redis-%e8%99%95%e7%90%86%e7%86%b1%e9%bb%9e%e9%ab%98%e4%b8%a6%e7%99%bc%e7%9a%84%e5%88%a9%e5%99%a8-NKcIQCikNt\">Redis \u8655\u7406\u71b1\u9ede\u9ad8\u4e26\u767c\u7684\u5229\u5668<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u81f3\u95dc\u91cd\u8981\u3002\u96a8\u8457\u7528\u6236\u6578\u91cf\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u8655\u7406\u9ad8\u4e26\u767c\u8acb\u6c42\u6210\u70ba\u4e86\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u56e0\u5176\u5353\u8d8a\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\uff0c\u6210\u70ba\u4e86\u8655\u7406\u71b1\u9ede\u9ad8\u4e26\u767c\u7684\u5229\u5668\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%86%b1%e9%bb%9e%e9%ab%98%e4%b8%a6%e7%99%bc%ef%bc%9f-NKcIQCikNt\">\u4ec0\u9ebc\u662f\u71b1\u9ede\u9ad8\u4e26\u767c\uff1f<\/h2>\n<p>\u71b1\u9ede\u9ad8\u4e26\u767c\u6307\u7684\u662f\u5728\u67d0\u4e9b\u7279\u5b9a\u7684\u8cc7\u6e90\u6216\u6578\u64da\u4e0a\uff0c\u51fa\u73fe\u5927\u91cf\u7684\u540c\u6642\u8acb\u6c42\uff0c\u9019\u4e9b\u8acb\u6c42\u53ef\u80fd\u6703\u5c0e\u81f4\u7cfb\u7d71\u7684\u6027\u80fd\u74f6\u9838\u3002\u8209\u4f8b\u4f86\u8aaa\uff0c\u7576\u4e00\u500b\u71b1\u9580\u5546\u54c1\u7684\u8a73\u7d30\u9801\u9762\u88ab\u5927\u91cf\u7528\u6236\u540c\u6642\u8a2a\u554f\u6642\uff0c\u5f8c\u7aef\u670d\u52d9\u5668\u53ef\u80fd\u7121\u6cd5\u627f\u53d7\u9019\u6a23\u7684\u8acb\u6c42\u91cf\uff0c\u5f9e\u800c\u5c0e\u81f4\u5ef6\u9072\u6216\u5d29\u6f70\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%84%aa%e5%8b%a2-NKcIQCikNt\">Redis \u7684\u512a\u52e2<\/h2>\n<p>Redis \u4ee5\u5176\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\u901f\u5ea6\u548c\u8c50\u5bcc\u7684\u6578\u64da\u7d50\u69cb\uff0c\u6210\u70ba\u89e3\u6c7a\u71b1\u9ede\u9ad8\u4e26\u767c\u554f\u984c\u7684\u7406\u60f3\u9078\u64c7\u3002\u4ee5\u4e0b\u662f Redis \u7684\u5e7e\u500b\u4e3b\u8981\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u5167\u5b58\u5b58\u5132\uff1a<\/strong>Redis \u5c07\u6578\u64da\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u9019\u4f7f\u5f97\u6578\u64da\u7684\u8b80\u53d6\u548c\u5beb\u5165\u901f\u5ea6\u6975\u5feb\uff0c\u901a\u5e38\u5728\u6beb\u79d2\u7d1a\u5225\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis \u4e0d\u50c5\u652f\u6301\u5b57\u7b26\u4e32\uff0c\u9084\u652f\u6301\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9019\u4f7f\u5f97\u5b83\u80fd\u5920\u9748\u6d3b\u61c9\u5c0d\u4e0d\u540c\u7684\u61c9\u7528\u5834\u666f\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u9078\u9805\uff1a<\/strong>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u6301\u4e45\u5316\u6a5f\u5236\uff0c\u80fd\u5920\u5728\u7cfb\u7d71\u91cd\u555f\u5f8c\u6062\u5fa9\u6578\u64da\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<li><strong>\u5206\u4f48\u5f0f\u67b6\u69cb\uff1a<\/strong>Redis \u652f\u6301\u4e3b\u5f9e\u8907\u88fd\u548c\u5206\u7247\uff0c\u80fd\u5920\u8f15\u9b06\u64f4\u5c55\u4ee5\u61c9\u5c0d\u66f4\u9ad8\u7684\u4e26\u767c\u8acb\u6c42\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-redis-%e8%a7%a3%e6%b1%ba%e7%86%b1%e9%bb%9e%e9%ab%98%e4%b8%a6%e7%99%bc%e5%95%8f%e9%a1%8c-NKcIQCikNt\">\u5982\u4f55\u4f7f\u7528 Redis \u89e3\u6c7a\u71b1\u9ede\u9ad8\u4e26\u767c\u554f\u984c<\/h2>\n<p>\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u4f7f\u7528 Redis \u8655\u7406\u71b1\u9ede\u9ad8\u4e26\u767c\u7684\u5e38\u898b\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e7%b7%a9%e5%ad%98-NKcIQCikNt\">1. \u4f7f\u7528\u7de9\u5b58<\/h3>\n<p>\u5c07\u71b1\u9ede\u6578\u64da\u7de9\u5b58\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\u3002\u4f8b\u5982\uff0c\u7576\u7528\u6236\u8acb\u6c42\u67d0\u500b\u71b1\u9580\u5546\u54c1\u7684\u8a73\u7d30\u4fe1\u606f\u6642\uff0c\u9996\u5148\u67e5\u8a62 Redis \u7de9\u5b58\uff0c\u5982\u679c\u5b58\u5728\u5247\u76f4\u63a5\u8fd4\u56de\uff0c\u5426\u5247\u518d\u67e5\u8a62\u5f8c\u7aef\u6578\u64da\u5eab\u4e26\u66f4\u65b0\u7de9\u5b58\u3002<\/p>\n<pre><code>if (redis.exists(\"product:123\")) {\n    return redis.get(\"product:123\");\n} else {\n    product = db.query(\"SELECT * FROM products WHERE id = 123\");\n    redis.set(\"product:123\", product);\n    return product;\n}<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96-NKcIQCikNt\">2. \u4f7f\u7528\u5206\u4f48\u5f0f\u9396<\/h3>\n<p>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0c\u5c0d\u540c\u4e00\u8cc7\u6e90\u7684\u64cd\u4f5c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002\u4f7f\u7528 Redis \u7684\u5206\u4f48\u5f0f\u9396\u53ef\u4ee5\u6709\u6548\u907f\u514d\u9019\u7a2e\u60c5\u6cc1\u3002\u901a\u904e\u8a2d\u7f6e\u9396\uff0c\u78ba\u4fdd\u540c\u4e00\u6642\u9593\u53ea\u6709\u4e00\u500b\u8acb\u6c42\u80fd\u5920\u5c0d\u8cc7\u6e90\u9032\u884c\u64cd\u4f5c\u3002<\/p>\n<pre><code>if (redis.set(\"lock:product:123\", \"locked\", \"NX\", \"EX\", 5)) {\n    \/\/ \u57f7\u884c\u64cd\u4f5c\n    redis.del(\"lock:product:123\");\n}<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97-NKcIQCikNt\">3. \u4f7f\u7528\u6d88\u606f\u968a\u5217<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u5c07\u8acb\u6c42\u653e\u5165\u6d88\u606f\u968a\u5217\u4e2d\u9032\u884c\u7570\u6b65\u8655\u7406\uff0c\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u77ac\u6642\u7684\u8acb\u6c42\u58d3\u529b\u3002Redis \u7684\u5217\u8868\u7d50\u69cb\u53ef\u4ee5\u7528\u4f5c\u7c21\u55ae\u7684\u6d88\u606f\u968a\u5217\u3002<\/p>\n<pre><code>redis.lpush(\"queue:product_updates\", product_id);<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-NKcIQCikNt\">\u7d50\u8ad6<\/h2>\n<p>Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u70ba\u89e3\u6c7a\u71b1\u9ede\u9ad8\u4e26\u767c\u554f\u984c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6709\u6548\u7684\u7b56\u7565\u3002\u901a\u904e\u5408\u7406\u5229\u7528 Redis \u7684\u7de9\u5b58\u3001\u5206\u4f48\u5f0f\u9396\u548c\u6d88\u606f\u968a\u5217\u7b49\u529f\u80fd\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u5728\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u6642\uff0c\u8003\u616e\u5230 Redis \u7684\u512a\u52e2\uff0c\u5c07\u6709\u52a9\u65bc\u69cb\u5efa\u9ad8\u6548\u7684\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u5982\u4f55\u6709\u6548\u8655\u7406\u71b1\u9ede\u9ad8\u4e26\u767c\u554f\u984c\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\uff0c\u6210\u70ba\u958b\u767c\u8005\u7684\u6700\u4f73\u5229\u5668\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-97290","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97290","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=97290"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97290\/revisions"}],"predecessor-version":[{"id":97291,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97290\/revisions\/97291"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=97290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=97290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=97290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}