{"id":900,"date":"2026-05-20T09:54:25","date_gmt":"2026-05-20T01:54:25","guid":{"rendered":"https:\/\/junai.ai\/blog\/nextjs-caching-17\/"},"modified":"2026-05-20T09:54:25","modified_gmt":"2026-05-20T01:54:25","slug":"nextjs-caching-17","status":"publish","type":"post","link":"https:\/\/junai.ai\/blog\/nextjs-caching-17\/","title":{"rendered":"Next.js \uce90\uc2f1 \uc644\uc804 \uc815\ub9ac \u2014 4\uce35 \uce90\uc2dc"},"content":{"rendered":"\n<!-- WordPress REST API \ubc1c\ud589\uc6a9 HTML (\uc790\ub3d9 \uc0dd\uc131) -->\n<!-- WP-FEATURED-MEDIA-ID: 847 -->\n<div style=\"max-width:800px;margin:0 auto;\">\n<style>\n:root {--color-primary:#4f46e5;--color-accent:#6366f1;--color-bg:#fafbfc;--color-bg-card:#fff;--color-text:#1a202c;--color-text-muted:#64748b;--hero-start:#1e1b4b;--hero-end:#4338ca;}\n*{box-sizing:border-box;}\n.container{max-width:760px;margin:0 auto;padding:0 24px 80px;}\n.hero{background:linear-gradient(135deg,var(--hero-start) 0%,var(--hero-end) 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h2{font-size:21px;}article h3{font-size:17px;}body{font-size:16px;}}\n<\/style>\n<section class=\"hero\">\n  <span class=\"eyebrow\">Next.js \uad50\uc7ac \u00b7 17\ud3b8 \u00b7 \uce90\uc2f1<\/span>\n  <h1>Next.js \uce90\uc2f1 \uc644\uc804 \uc815\ub9ac \u2014 4\uce35 \uce90\uc2dc<\/h1>\n  <p>\uac19\uc740 \ub370\uc774\ud130\uac00 4\ubc88 \uce90\uc2dc\ub420 \uc218 \uc788\ub2e4. 4\uce35\uc758 \uc704\uce58\uc640 \ud3d0\uae30 \ubc29\ubc95.<\/p>\n  <img decoding=\"async\" src=\"https:\/\/junai.ai\/blog\/wp-content\/uploads\/2026\/05\/hero-5-78.jpg\" alt=\"Next.js 4\uce35 \uce90\uc2dc \ud750\ub984 \ucee8\uc149 \uc77c\ub7ec\uc2a4\ud2b8\">\n<\/section>\n\n<div class=\"container\">\n<article>\n\n<p>Next.js \uac00 \uac00\uc7a5 \ud5f7\uac08\ub9ac\ub294 \uc774\uc720 \uc911 \ud558\ub098 \u2014 <strong>\uac19\uc740 \ub370\uc774\ud130\uac00 \ub3d9\uc2dc\uc5d0 4\uacf3\uc5d0 \uce90\uc2dc<\/strong>\ub41c\ub2e4. \ubb34\ud6a8\ud654\ud558\uba74 \ud55c \uacf3\ub9cc \ube44\ub294\ub370 \ub2e4\ub978 \uacf3\uc5d0 \uc61b \ub370\uc774\ud130\uac00 \ub0a8\uc544 \ud654\uba74\uc774 \uc548 \ubc14\ub010\ub2e4. &#8220;\ubd84\uba85 fetch \ud588\ub294\ub370 \uc61b \uac12\uc774 \uc640\uc694&#8221; \uc758 \uc815\uccb4.<\/p>\n\n<p>16\ud3b8\uc5d0\uc11c ISR\u00b7SSG\u00b7SSR \ubaa8\ub4dc \ucc28\uc774\ub97c \ubd24\ub2e4\uba74, \uc774\ubc88\uc740 \uadf8 \ub4a4\uc5d0\uc11c \ub3c4\ub294 <strong>\uc2e4\uc81c \uce90\uc2dc 4\uce35<\/strong>\uc744 \ubcf8\ub2e4. \ud55c \ubc88 \uc678\uc6cc\ub450\uba74 \ub514\ubc84\uae45\uc774 \ud55c\uacb0 \ube68\ub77c\uc9c4\ub2e4.<\/p>\n\n<h2>1. 4\uce35 \uce90\uc2dc \ud55c\ub208\uc5d0<\/h2>\n\n<div class=\"tablewrap\">\n<table>\n<thead><tr><th>\uce35<\/th><th>\uc704\uce58<\/th><th>\uc218\uba85<\/th><th>\ubaa9\uc801<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>Request Memoization<\/td><td data-label=\"\uc704\uce58\">\uc11c\ubc84 \u00b7 \ud55c \uc694\uccad \ub0b4<\/td><td data-label=\"\uc218\uba85\">\uc694\uccad \ub05d\ub098\uba74 \ud3d0\uae30<\/td><td data-label=\"\ubaa9\uc801\">\uac19\uc740 \uc694\uccad\uc5d0\uc11c fetch \uc911\ubcf5 \uc81c\uac70<\/td><\/tr>\n<tr><td>Data Cache<\/td><td data-label=\"\uc704\uce58\">\uc11c\ubc84 \u00b7 \uc601\uad6c (\uc9c0\uc815 \uc2dc\uac04)<\/td><td data-label=\"\uc218\uba85\">revalidate \ub610\ub294 \ud3d0\uae30 \ud638\ucd9c<\/td><td data-label=\"\ubaa9\uc801\">fetch \uacb0\uacfc \uc7ac\uc0ac\uc6a9<\/td><\/tr>\n<tr><td>Full Route Cache<\/td><td data-label=\"\uc704\uce58\">\uc11c\ubc84 \u00b7 \uc601\uad6c<\/td><td data-label=\"\uc218\uba85\">revalidate \ub610\ub294 \uc7ac\ubc30\ud3ec<\/td><td data-label=\"\ubaa9\uc801\">SSG\u00b7ISR HTML \ud1b5\uc9f8 \uce90\uc2dc<\/td><\/tr>\n<tr><td>Router Cache<\/td><td data-label=\"\uc704\uce58\">\ube0c\ub77c\uc6b0\uc800 \uba54\ubaa8\ub9ac<\/td><td data-label=\"\uc218\uba85\">\uc138\uc158 \ub610\ub294 5\ubd84<\/td><td data-label=\"\ubaa9\uc801\">\ub4a4\ub85c\uac00\uae30\u00b7\ud398\uc774\uc9c0 \uc804\ud658 \ube60\ub974\uac8c<\/td><\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\n<p>\uc694\uccad\uc774 \ub4e4\uc5b4\uc624\uba74 \u2014 <strong>\uc704\uc5d0\uc11c \uc544\ub798\ub85c<\/strong> \uac80\uc0ac. Router Cache \uc5d0 \uc788\uc73c\uba74 \uc989\uc2dc \uc751\ub2f5, \uc5c6\uc73c\uba74 Full Route Cache, \uadf8 \uc548\uc5d0\uc11c fetch \ud638\ucd9c\uc740 Data Cache, \uac19\uc740 \uc694\uccad \ub0b4 \uc911\ubcf5\uc740 Memoization. 4\ub2e8 \ucf64\ubcf4.<\/p>\n\n<h2>2. Request Memoization \u2014 \uc790\ub3d9 \uc911\ubcf5 \uc81c\uac70<\/h2>\n\n<p>\ud55c \ud398\uc774\uc9c0 \ub80c\ub354\ub9c1 \uc911\uc5d0 <strong>\uac19\uc740 fetch \uac00 \uc5ec\ub7ec \ubc88<\/strong> \uc77c\uc5b4\ub098\ub294 \uacbd\uc6b0.<\/p>\n\n<div class=\"code-block\">\/\/ app\/page.tsx\nimport { getUser } from &#8216;@\/lib\/api&#8217;;\n\nasync function Header() {\n  const user = await getUser();   \/\/ \u2460 \ud638\ucd9c\n  return &lt;div&gt;{user.name}&lt;\/div&gt;;\n}\n\nasync function Sidebar() {\n  const user = await getUser();   \/\/ \u2461 \uac19\uc740 \ud638\ucd9c, \uc790\ub3d9\uc73c\ub85c \u2460\uc758 \uacb0\uacfc \uc7ac\uc0ac\uc6a9\n  return &lt;div&gt;{user.email}&lt;\/div&gt;;\n}\n\nexport default function HomePage() {\n  return (\n    &lt;&gt;\n      &lt;Header \/&gt;\n      &lt;Sidebar \/&gt;\n    &lt;\/&gt;\n  );\n}<\/div>\n\n<p>\ub450 \ucef4\ud3ec\ub10c\ud2b8\uac00 \uac19\uc740 <code>getUser()<\/code> \ub97c \ubd80\ub974\uc9c0\ub9cc <strong>\uc2e4\uc81c fetch \ub294 \ud55c \ubc88\ub9cc<\/strong>. Next \uac00 \uc790\ub3d9\uc73c\ub85c \uce90\uc2dc\ud574\uc11c \ub450 \ubc88\uc9f8 \ud638\ucd9c\uc5d0 \uadf8\ub300\ub85c \ub3cc\ub824\uc900\ub2e4. React \uc758 <code>cache()<\/code> \ud568\uc218 + fetch \uc790\ub3d9 \ub3d9\uc791.<\/p>\n\n<div class=\"databox\">\n<strong>\ube44\ubc00 \u2014 URL+\uc635\uc158 \ud0a4 \ub9e4\uce6d<\/strong> \u2014 \uac19\uc740 fetch URL + \uac19\uc740 \ud5e4\ub354\u00b7\uba54\uc11c\ub4dc\uba74 \uc911\ubcf5 \uc81c\uac70. <code>fetch<\/code> \uac00 \uc544\ub2cc \ud568\uc218(<code>db.query<\/code>\u00b7<code>axios<\/code>)\ub294 \uc790\ub3d9 \uc548 \ub428. \uadf8 \uacbd\uc6b0 React \uc758 <code>cache(fn)<\/code> \uc73c\ub85c \uac10\uc2f8 \uba85\uc2dc.\n<\/div>\n\n<h2>3. Data Cache \u2014 fetch \uacb0\uacfc \uc601\uad6c \uc800\uc7a5<\/h2>\n\n<p>16\ud3b8\uc5d0\uc11c \ubcf8 <code>force-cache<\/code>\u00b7<code>revalidate<\/code> \uc758 \uc2e4\uc81c \ub3d9\uc791\uce35.<\/p>\n\n<div class=\"code-block\">\/\/ \uc601\uad6c \uce90\uc2dc (\uc218\ub3d9 \ud3d0\uae30\uae4c\uc9c0)\nfetch(url, { cache: &#8216;force-cache&#8217; });\n\n\/\/ 60\ucd08\ub9c8\ub2e4 \uac31\uc2e0\nfetch(url, { next: { revalidate: 60 } });\n\n\/\/ \ud0dc\uadf8 \ubd99\uc5ec\uc11c \uba85\uc2dc\uc801 \ud3d0\uae30 \uac00\ub2a5\nfetch(url, { next: { tags: [&#8216;posts&#8217;] } });\n\n\/\/ \uce90\uc2dc \uc548 \ud568 (Next 15 \uae30\ubcf8)\nfetch(url, { cache: &#8216;no-store&#8217; });<\/div>\n\n<p>\uc704\uce58\ub294 \ube4c\ub4dc\ub41c \uc11c\ubc84 \uba54\ubaa8\ub9ac \ub610\ub294 \ub514\uc2a4\ud06c. Vercel \uac19\uc740 \uc11c\ubc84\ub9ac\uc2a4 \ud658\uacbd\uc5d0\uc120 \uc0ac\uc6a9\uc790 \uac00\uae4c\uc6b4 \uc5e3\uc9c0\uc5d0 \ubd84\uc0b0 \uc800\uc7a5. \uac19\uc740 fetch \uac00 \uc5ec\ub7ec \uc694\uccad\uc5d0 \uac78\uccd0 \uc7ac\uc0ac\uc6a9\ub41c\ub2e4.<\/p>\n\n<h2>4. Full Route Cache \u2014 \ud398\uc774\uc9c0 \ud1b5\uc9f8 HTML<\/h2>\n\n<p>SSG\u00b7ISR \ud398\uc774\uc9c0\uac00 \uce90\uc2dc\ub418\ub294 \uc704\uce58. \ube4c\ub4dc \ud0c0\uc784\uc5d0 HTML \uc744 \ub9cc\ub4e4\uc5b4 \ub514\uc2a4\ud06c\uc5d0 \uc800\uc7a5.<\/p>\n\n<div class=\"code-block\">\/\/ app\/blog\/[slug]\/page.tsx\nexport const revalidate = 3600;   \/\/ 1\uc2dc\uac04\ub9c8\ub2e4\n\nexport default async function PostPage({ params }) {\n  const { slug } = await params;\n  const post = await fetchPost(slug);\n  return &lt;article&gt;{post.body}&lt;\/article&gt;;\n}<\/div>\n\n<p>\ud55c \uc2dc\uac04 \ub3d9\uc548\uc740 \uac19\uc740 HTML \uc774 \ubaa8\ub4e0 \uc0ac\uc6a9\uc790\uc5d0\uac8c. \uc0ac\uc6a9\uc790 \ubcc4\ub85c \ub2e4\ub978 \ub370\uc774\ud130\ub97c \ubcf4\uc5ec\uc918\uc57c \ud558\uba74 \ud398\uc774\uc9c0\uc5d0 <code>cookies()<\/code>\u00b7<code>headers()<\/code> \uac19\uc740 \ub3d9\uc801 \ud568\uc218\ub97c \ubd80\ub974\uba74 \uc790\ub3d9\uc73c\ub85c Full Route Cache \ube44\ud65c\uc131\ud654.<\/p>\n\n<h2>5. Router Cache \u2014 \ube0c\ub77c\uc6b0\uc800 \uba54\ubaa8\ub9ac<\/h2>\n\n<p>\uc720\uc77c\ud558\uac8c <strong>\ud074\ub77c\uc774\uc5b8\ud2b8 \uce21<\/strong> \uce90\uc2dc. \uc0ac\uc6a9\uc790\uac00 \ud55c \ubc88 \ubcf8 \ud398\uc774\uc9c0\ub97c \ub2e4\uc2dc \uac08 \ub54c \uc989\uc2dc \ubcf4\uc5ec\uc8fc\ub824\uace0 React \uac00 \uba54\ubaa8\ub9ac\uc5d0 \ub4e4\uace0 \uc788\ub2e4.<\/p>\n\n<p>\uc608 \u2014 \ube14\ub85c\uadf8 \ubaa9\ub85d \u2192 \uae00 \ud074\ub9ad \u2192 \ub4a4\ub85c\uac00\uae30. \ub4a4\ub85c\uac00\uae30 \uc2dc \uc11c\ubc84 fetch \uc5c6\uc774 \uc989\uc2dc \ubaa9\ub85d \ud45c\uc2dc. 5\ubd84 \ub610\ub294 \uc138\uc158 \ub3d9\uc548 \uc720\ud6a8.<\/p>\n\n<div class=\"warnbox\">\n<strong>\uac00\uc7a5 \ud5f7\uac08\ub9ac\ub294 \uacf3<\/strong> \u2014 \uc11c\ubc84\uc5d0\uc11c <code>revalidatePath<\/code> \ud638\ucd9c\ud588\ub294\ub370 \ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0\uc120 \uc61b \ub370\uc774\ud130\uac00 \ubcf4\uc774\ub294 \ud604\uc0c1. Router Cache \uac00 \ud074\ub77c\uc774\uc5b8\ud2b8 \uba54\ubaa8\ub9ac\uc5d0 \ub0a8\uc544 \uc788\uc5b4\uc11c. \uac15\uc81c \uc0c8\ub85c\uace0\uce68 \ub610\ub294 <code>router.refresh()<\/code> \ud638\ucd9c\ub85c \ud3d0\uae30.\n<\/div>\n\n<h3>\ud3d0\uae30 \ubc29\ubc95 \u2014 4\uac00\uc9c0 \ub3c4\uad6c<\/h3>\n\n<div class=\"tablewrap\">\n<table>\n<thead><tr><th>\ub3c4\uad6c<\/th><th>\ub300\uc0c1<\/th><th>\uc5b8\uc81c<\/th><\/tr><\/thead>\n<tbody>\n<tr><td><code>revalidatePath('\/posts')<\/code><\/td><td data-label=\"\ub300\uc0c1\">\ud574\ub2f9 \uacbd\ub85c\uc758 Data + Full Route Cache<\/td><td data-label=\"\uc5b8\uc81c\">\uae00 \ubc1c\ud589 \ud6c4<\/td><\/tr>\n<tr><td><code>revalidateTag('posts')<\/code><\/td><td data-label=\"\ub300\uc0c1\">\ud0dc\uadf8 \ubd99\uc740 \ubaa8\ub4e0 Data Cache<\/td><td data-label=\"\uc5b8\uc81c\">\uc5ec\ub7ec \ud398\uc774\uc9c0\uc5d0 \uc601\ud5a5 \uc8fc\ub294 \uae00 \uc218\uc815<\/td><\/tr>\n<tr><td><code>router.refresh()<\/code><\/td><td data-label=\"\ub300\uc0c1\">\ud604\uc7ac \ud398\uc774\uc9c0\uc758 Router Cache<\/td><td data-label=\"\uc5b8\uc81c\">\ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0\uc11c \uc11c\ubc84 \ubcc0\uacbd \ubc18\uc601<\/td><\/tr>\n<tr><td>\uc7ac\ubc30\ud3ec<\/td><td data-label=\"\ub300\uc0c1\">\ubaa8\ub4e0 \ube4c\ub4dc \uce90\uc2dc<\/td><td data-label=\"\uc5b8\uc81c\">\uc2a4\ud0a4\ub9c8 \ubcc0\uacbd\u00b7\uc804\uba74 \uac31\uc2e0<\/td><\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\n<p>Server Action \uc548\uc5d0\uc11c <code>revalidatePath<\/code> + \ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0\uc11c <code>router.refresh()<\/code> \uac00 \uac19\uc774 \uc77c\uc5b4\ub098\uc57c \uc9c4\uc9dc \uae54\ub054\ud55c \uac31\uc2e0. \ud55c \ucabd\ub9cc \ud558\uba74 \uc61b \ub370\uc774\ud130\uac00 \uc5b4\ub514\uc120\uac00 \ub0a8\uc544 \ud5f7\uac08\ub9b0\ub2e4.<\/p>\n\n<h3>\uc694\uc57d \u2014 17\ud3b8 \uc88c\ud45c<\/h3>\n\n<p>\uc5ec\uae30\uae4c\uc9c0 \uc815\ub9ac. Next.js \uce90\uc2f1 4\uce35 \u2014 <strong>Request Memoization<\/strong>(\uc694\uccad \ub0b4), <strong>Data Cache<\/strong>(fetch \uacb0\uacfc \uc601\uad6c), <strong>Full Route Cache<\/strong>(\ud398\uc774\uc9c0 HTML \ud1b5\uc9f8), <strong>Router Cache<\/strong>(\ube0c\ub77c\uc6b0\uc800 \uba54\ubaa8\ub9ac). \uc704\uc5d0\uc11c \uc544\ub798\ub85c \uac80\uc0ac. \ud3d0\uae30\ub294 <code>revalidatePath<\/code>\u00b7<code>revalidateTag<\/code>\u00b7<code>router.refresh<\/code>\u00b7\uc7ac\ubc30\ud3ec 4\uac00\uc9c0. &#8220;\uc61b \ub370\uc774\ud130\uac00 \ubcf4\uc5ec\uc694&#8221; \uc758 90% \uac00 Router Cache \ub610\ub294 \ud3d0\uae30 \ub204\ub77d. \ub2e4\uc74c \ud3b8\uc5d0\uc11c <strong>\ud658\uacbd\ubcc0\uc218<\/strong>\ub85c \ube44\ubc00 \uc124\uc815.<\/p>\n\n<div class=\"cta\">\n<h3>\ub2e4\uc74c \ud3b8 \uc608\uace0 \u2014 \ud658\uacbd\ubcc0\uc218 \ub2e4\ub8e8\uae30<\/h3>\n<p>.env.local\u00b7NEXT_PUBLIC \uaddc\uce59\u00b7\uc2e4\uc218 \ubc29\uc9c0. 18\ud3b8.<\/p>\n<\/div>\n\n<div class=\"footer-nav\">\n\uc2dc\ub9ac\uc988 \u00b7 <a href=\"https:\/\/junai.ai\/blog\/category\/nextjs\/\">\uc27d\uac8c \ubc30\uc6b0\ub294 Next.js<\/a> \u00b7 \uc774\uc804: <a href=\"https:\/\/junai.ai\/blog\/nextjs-isr-ssg-ssr-16\/\">Ch.16 ISR\u00b7SSG\u00b7SSR<\/a>\n<\/div>\n\n<\/article>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Next.js \uce90\uc2f1 4\uce35 \u2014 Memoization\u00b7Data\u00b7Full Route\u00b7Router. \uac01 \uce35 \ub3d9\uc791\uacfc \ud3d0\uae30 4\uc885. \uad50\uc7ac 17\ud3b8.<\/p>\n","protected":false},"author":1,"featured_media":847,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-900","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nextjs"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/posts\/900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/comments?post=900"}],"version-history":[{"count":0,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/posts\/900\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/media\/847"}],"wp:attachment":[{"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/media?parent=900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/categories?post=900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/junai.ai\/blog\/wp-json\/wp\/v2\/tags?post=900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}