{"id":161363,"date":"2024-11-04T05:48:24","date_gmt":"2024-11-03T21:48:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161363\/"},"modified":"2024-11-04T05:48:25","modified_gmt":"2024-11-03T21:48:25","slug":"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e7%b7%a9%e5%ad%98%e6%9b%b4%e6%96%b0%e7%ad%96%e7%95%a5%e7%a0%94%e7%a9%b6%ef%bc%88%e7%b7%a9%e5%ad%98%e6%9b%b4%e6%96%b0%e7%ad%96%e7%95%a5-redis%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161363\/","title":{"rendered":"\u57fa\u65bc Redis \u7684\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\u7814\u7a76\uff08\u7de9\u5b58\u66f4\u65b0\u7b56\u7565 redis\uff09"},"content":{"rendered":"<h1 id=\"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e7%b7%a9%e5%ad%98%e6%9b%b4%e6%96%b0%e7%ad%96%e7%95%a5%e7%a0%94%e7%a9%b6-WnsUuIEBho\">\u57fa\u65bc Redis \u7684\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\u7814\u7a76<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u7de9\u5b58\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u7cfb\u7d71\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u57fa\u65bc Redis \u7684\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u7de9\u5b58\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b7%a9%e5%ad%98%e6%9b%b4%e6%96%b0%e7%ad%96%e7%95%a5%ef%bc%9f-WnsUuIEBho\">\u4ec0\u9ebc\u662f\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\uff1f<\/h2>\n<p>\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\u662f\u6307\u5728\u7de9\u5b58\u7cfb\u7d71\u4e2d\uff0c\u5982\u4f55\u7ba1\u7406\u548c\u66f4\u65b0\u7de9\u5b58\u6578\u64da\u7684\u898f\u5247\u548c\u65b9\u6cd5\u3002\u6709\u6548\u7684\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\u80fd\u5920\u78ba\u4fdd\u7de9\u5b58\u4e2d\u7684\u6578\u64da\u59cb\u7d42\u4fdd\u6301\u6700\u65b0\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002\u5e38\u898b\u7684\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u4e3b\u52d5\u66f4\u65b0\uff08Write-Through\uff09<\/li>\n<li>\u5ef6\u9072\u66f4\u65b0\uff08Write-Behind\uff09<\/li>\n<li>\u904e\u671f\u7b56\u7565\uff08TTL\uff09<\/li>\n<li>LRU\uff08Least Recently Used\uff09<\/li>\n<\/ul>\n<h2 id=\"redis-%e7%b7%a9%e5%ad%98%e6%9b%b4%e6%96%b0%e7%ad%96%e7%95%a5-WnsUuIEBho\">Redis \u7de9\u5b58\u66f4\u65b0\u7b56\u7565<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u7b56\u7565\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684 Redis \u7de9\u5b58\u66f4\u65b0\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e4%b8%bb%e5%8b%95%e6%9b%b4%e6%96%b0%ef%bc%88write-through%ef%bc%89-WnsUuIEBho\">1. \u4e3b\u52d5\u66f4\u65b0\uff08Write-Through\uff09<\/h3>\n<p>\u5728\u4e3b\u52d5\u66f4\u65b0\u7b56\u7565\u4e2d\uff0c\u6240\u6709\u5c0d\u6578\u64da\u7684\u5beb\u5165\u64cd\u4f5c\u90fd\u6703\u540c\u6642\u66f4\u65b0\u7de9\u5b58\u548c\u6578\u64da\u5eab\u3002\u9019\u7a2e\u65b9\u5f0f\u78ba\u4fdd\u4e86\u7de9\u5b58\u4e2d\u7684\u6578\u64da\u59cb\u7d42\u8207\u6578\u64da\u5eab\u4fdd\u6301\u4e00\u81f4\uff0c\u4f46\u53ef\u80fd\u6703\u5f71\u97ff\u5beb\u5165\u6027\u80fd\u3002<\/p>\n<pre><code>\n# \u793a\u4f8b\uff1a\u4f7f\u7528 Redis \u7684 SET \u547d\u4ee4\u9032\u884c\u4e3b\u52d5\u66f4\u65b0\nSET user:1000 '{\"name\": \"Alice\", \"age\": 30}'\n# \u540c\u6642\u66f4\u65b0\u6578\u64da\u5eab\nUPDATE users SET name='Alice', age=30 WHERE id=1000;\n<\/code><\/pre>\n<h3 id=\"2-%e5%bb%b6%e9%81%b2%e6%9b%b4%e6%96%b0%ef%bc%88write-behind%ef%bc%89-WnsUuIEBho\">2. \u5ef6\u9072\u66f4\u65b0\uff08Write-Behind\uff09<\/h3>\n<p>\u5ef6\u9072\u66f4\u65b0\u7b56\u7565\u5141\u8a31\u61c9\u7528\u7a0b\u5e8f\u5148\u5c07\u6578\u64da\u5beb\u5165\u7de9\u5b58\uff0c\u7136\u5f8c\u5728\u5f8c\u53f0\u7570\u6b65\u66f4\u65b0\u6578\u64da\u5eab\u3002\u9019\u7a2e\u65b9\u5f0f\u63d0\u9ad8\u4e86\u5beb\u5165\u6027\u80fd\uff0c\u4f46\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002<\/p>\n<pre><code>\n# \u793a\u4f8b\uff1a\u4f7f\u7528 Redis \u7684 SET \u547d\u4ee4\u9032\u884c\u5ef6\u9072\u66f4\u65b0\nSET user:1000 '{\"name\": \"Alice\", \"age\": 30}'\n\/\/ \u5f8c\u53f0\u4efb\u52d9\u66f4\u65b0\u6578\u64da\u5eab\nUPDATE users SET name='Alice', age=30 WHERE id=1000;\n<\/code><\/pre>\n<h3 id=\"3-%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%ef%bc%88ttl%ef%bc%89-WnsUuIEBho\">3. \u904e\u671f\u7b56\u7565\uff08TTL\uff09<\/h3>\n<p>Redis \u652f\u6301\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u7576\u9375\u904e\u671f\u5f8c\uff0c\u81ea\u52d5\u5f9e\u7de9\u5b58\u4e2d\u522a\u9664\u3002\u9019\u7a2e\u7b56\u7565\u9069\u5408\u65bc\u90a3\u4e9b\u4e0d\u9700\u8981\u9577\u671f\u4fdd\u5b58\u7684\u6578\u64da\u3002<\/p>\n<pre><code>\n# \u793a\u4f8b\uff1a\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\nSET user:1000 '{\"name\": \"Alice\", \"age\": 30}'\nEXPIRE user:1000 3600  # 1\u5c0f\u6642\u5f8c\u904e\u671f\n<\/code><\/pre>\n<h3 id=\"4-lru%ef%bc%88least-recently-used%ef%bc%89-WnsUuIEBho\">4. LRU\uff08Least Recently Used\uff09<\/h3>\n<p>LRU \u662f\u4e00\u7a2e\u5e38\u898b\u7684\u7de9\u5b58\u6dd8\u6c70\u7b56\u7565\uff0c\u7576\u7de9\u5b58\u9054\u5230\u6700\u5927\u5bb9\u91cf\u6642\uff0c\u6703\u81ea\u52d5\u522a\u9664\u6700\u5c11\u4f7f\u7528\u7684\u6578\u64da\u3002Redis \u63d0\u4f9b\u4e86 LRU \u7684\u652f\u6301\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u7ba1\u7406\u7de9\u5b58\u3002<\/p>\n<pre><code>\n# \u793a\u4f8b\uff1a\u8a2d\u7f6e Redis \u7684\u6700\u5927\u5167\u5b58\u548c LRU \u6dd8\u6c70\u7b56\u7565\nCONFIG SET maxmemory 100mb\nCONFIG SET maxmemory-policy allkeys-lru\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-WnsUuIEBho\">\u7d50\u8ad6<\/h2>\n<p>\u57fa\u65bc Redis \u7684\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\u5c0d\u65bc\u63d0\u5347\u61c9\u7528\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u9078\u64c7\u5408\u9069\u7684\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5728\u6027\u80fd\u548c\u6578\u64da\u4e00\u81f4\u6027\u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u3002\u7121\u8ad6\u662f\u4e3b\u52d5\u66f4\u65b0\u3001\u5ef6\u9072\u66f4\u65b0\u3001\u904e\u671f\u7b56\u7565\u9084\u662f LRU\uff0c\u958b\u767c\u8005\u90fd\u61c9\u6839\u64da\u5177\u9ad4\u7684\u696d\u52d9\u9700\u6c42\u548c\u5834\u666f\u4f86\u9078\u64c7\u6700\u5408\u9069\u7684\u7b56\u7565\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u57fa\u65bc Redis \u7684\u7de9\u5b58\u66f4\u65b0\u7b56\u7565\uff0c\u63d0\u5347\u6578\u64da\u4e00\u81f4\u6027\u8207\u7cfb\u7d71\u6027\u80fd\uff0c\u512a\u5316\u7de9\u5b58\u7ba1\u7406\u8207\u61c9\u7528\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-161363","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161363","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=161363"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161363\/revisions"}],"predecessor-version":[{"id":161364,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161363\/revisions\/161364"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161363"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161363"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161363"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}