{"id":210039,"date":"2025-10-24T04:24:39","date_gmt":"2025-10-23T20:24:39","guid":{"rendered":"https:\/\/www.server.hk\/blog\/210039\/"},"modified":"2025-10-24T04:24:40","modified_gmt":"2025-10-23T20:24:40","slug":"cdn-253","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/210039\/","title":{"rendered":"CDN\u7f13\u5b58\u4f18\u5316\u5b9e\u6218\uff1a\u63d0\u5347\u547d\u4e2d\u7387\u4e0e\u6027\u80fd\u7684\u5173\u952e\u7b56\u7565"},"content":{"rendered":"<p>\u5728\u5f53\u524d\u4ee5\u901f\u5ea6\u548c\u53ef\u7528\u6027\u4e3a\u6838\u5fc3\u7684\u4e92\u8054\u7f51\u73af\u5883\u4e2d\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u7f13\u5b58\u4f18\u5316\u5df2\u6210\u4e3a\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u548c\u964d\u4f4e\u6e90\u7ad9\u538b\u529b\u7684\u5173\u952e\u6280\u672f\u3002\u5bf9\u4e8e\u4f9d\u8d56\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\u6258\u7ba1\u7684\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u548c\u5f00\u53d1\u8005\u800c\u8a00\uff0c\u638c\u63e1\u7f13\u5b58\u7b56\u7565\u4e0e\u5b9e\u73b0\u7ec6\u8282\u80fd\u663e\u8457\u63d0\u9ad8\u547d\u4e2d\u7387\u3001\u964d\u4f4e\u5e26\u5bbd\u6210\u672c\u5e76\u7f29\u77ed\u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u3001\u5e38\u89c1\u5e94\u7528\u573a\u666f\u3001\u5b9e\u6218\u7b56\u7565\u4e0e\u9009\u8d2d\u5efa\u8bae\u7b49\u65b9\u9762\u6df1\u5165\u89e3\u6790\uff0c\u5e2e\u52a9\u4f60\u628a\u63e1\u7f13\u5b58\u4f18\u5316\u7684\u6838\u5fc3\u8981\u70b9\u3002<\/p>\n<h2>\u7f13\u5b58\u539f\u7406\u4e0e\u8861\u91cf\u6307\u6807<\/h2>\n<p>CDN 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Ratio\uff09<\/strong>\uff1a\u547d\u4e2d\u8bf7\u6c42\u5360\u603b\u8bf7\u6c42\u7684\u6bd4\u4f8b\uff0c\u76f4\u63a5\u5f71\u54cd\u6e90\u7ad9\u56de\u6e90\u6d41\u91cf\u4e0e\u5ef6\u8fdf\u3002<\/li>\n<li><strong>\u7f13\u5b58\u751f\u5b58\u65f6\u95f4\uff08TTL\/Max-Age\uff09<\/strong>\uff1a\u8d44\u6e90\u5728\u8fb9\u7f18\u8282\u70b9\u88ab\u8ba4\u4e3a\u4ecd\u7136\u6709\u6548\u7684\u6301\u7eed\u65f6\u95f4\u3002<\/li>\n<li><strong>\u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09\u4e0e\u9875\u9762\u52a0\u8f7d\u65f6\u95f4<\/strong>\uff1a\u53cd\u6620\u7528\u6237\u611f\u77e5\u6027\u80fd\u3002<\/li>\n<li><strong>\u56de\u6e90\u6d41\u91cf\u4e0e\u56de\u6e90\u8bf7\u6c42\u6570<\/strong>\uff1a\u8861\u91cf\u5bf9\u6e90\u7ad9\uff08\u5982\u9999\u6e2fVPS\u6216\u6d77\u5916\u670d\u52a1\u5668\uff09\u9020\u6210\u7684\u538b\u529b\u3002<\/li>\n<\/ul>\n<h3>HTTP \u7f13\u5b58\u63a7\u5236\u5934\u89e3\u6790<\/h3>\n<p>\u8981\u63d0\u9ad8\u547d\u4e2d\u7387\uff0c\u5fc5\u987b\u7406\u89e3\u5e76\u5408\u7406\u914d\u7f6e HTTP 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TTL\uff1b\u53ef\u91c7\u7528\u6587\u4ef6\u540d\u6253\u5305\/\u6307\u7eb9\u5316\uff08hash\uff09\u5b9e\u73b0\u7248\u672c\u5316\uff0c\u907f\u514d\u590d\u6742\u7684\u7f13\u5b58\u5931\u6548\u6d41\u7a0b\u3002<\/li>\n<li><strong>\u534a\u9759\u6001\u9875\u9762<\/strong>\uff08\u5982\u5546\u54c1\u8be6\u60c5\u3001\u535a\u5ba2\u6587\u7ae0\uff09\uff1a\u53ef\u4ee5\u4f7f\u7528\u8fb9\u7f18\u7f13\u5b58\u5e76\u7ed3\u5408\u77ed TTL \u6216 Stale-While-Revalidate \u7b56\u7565\u5728\u540e\u53f0\u5f02\u6b65\u66f4\u65b0\u3002<\/li>\n<li><strong>\u4e2a\u6027\u5316\/\u79c1\u6709\u5185\u5bb9<\/strong>\uff1a\u5e94\u6807\u8bb0\u4e3a private \u5e76\u7ed5\u8fc7 CDN \u7f13\u5b58\uff0c\u6216\u4f7f\u7528\u57fa\u4e8e Cookie\/Authorization \u7684\u5206\u533a\u7f13\u5b58\u7b56\u7565\u3002<\/li>\n<\/ul>\n<h3>\u5206\u533a\u57df\u7f13\u5b58\u7b56\u7565<\/h3>\n<p>\u5bf9\u4e8e\u62e5\u6709\u5168\u7403\u7528\u6237\u7684\u7ad9\u70b9\uff08\u4f8b\u5982\u540c\u65f6\u5728\u9999\u6e2f\u3001\u7f8e\u56fd\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u7b49\u5730\u6709\u8bbf\u95ee\u91cf\uff09\uff0c\u5e94\u9488\u5bf9\u5730\u7406\u533a\u57df\u4f18\u5316\u7f13\u5b58\uff1a<\/p>\n<ul>\n<li>\u5728\u4e1c\u4e9a\u533a\u57df\uff08\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\uff09\u4f18\u5148\u4f7f\u7528\u9760\u8fd1\u7528\u6237\u7684\u8fb9\u7f18\u8282\u70b9\uff0cTTL \u53ef\u76f8\u5bf9\u8f83\u957f\u4ee5\u964d\u4f4e\u56de\u6e90\u3002<\/li>\n<li>\u5728\u5317\u7f8e\uff08\u7f8e\u56fd\u670d\u52a1\u5668\u4e3a\u6e90\uff09\u8003\u8651\u8de8\u533a\u57df\u56de\u6e90\u6210\u672c\uff0c\u4f7f\u7528\u533a\u57df\u6027\u8def\u7531\u6216\u591a\u6e90\u7ad9\u67b6\u6784\uff0c\u907f\u514d\u8de8\u6d0b\u9891\u7e41\u56de\u6e90\u3002<\/li>\n<li>\u5bf9\u6d41\u91cf\u7a81\u589e\u573a\u666f\uff08\u4fc3\u9500\u3001\u65b0\u95fb\uff09\u91c7\u7528\u9884\u70ed\/\u9884\u7f13\u5b58\u7b56\u7565\uff0c\u63d0\u524d\u5c06\u70ed\u95e8\u8d44\u6e90\u52a0\u8f7d\u5230\u8fb9\u7f18\u8282\u70b9\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u6218\u7b56\u7565\uff1a\u63d0\u5347\u547d\u4e2d\u7387\u7684\u5177\u4f53\u65b9\u6cd5<\/h2>\n<p>\u4e0b\u9762\u7ed9\u51fa\u4e00\u7cfb\u5217\u53ef\u843d\u5730\u7684\u6280\u5de7\uff0c\u7ed3\u5408\u5f00\u53d1\u8005\u548c\u8fd0\u7ef4\u5e38\u89c1\u6d41\u7a0b\uff0c\u4fbf\u4e8e\u5728\u9999\u6e2fVPS\/\u7f8e\u56fdVPS\u7b49\u5e38\u89c1\u4e3b\u673a\u4e0a\u5b9e\u65bd\u3002<\/p>\n<h3>1. \u8d44\u6e90\u6307\u7eb9\u5316\u4e0e\u957f\u671f\u7f13\u5b58<\/h3>\n<p>\u91c7\u7528 Webpack\u3001Rollup \u7b49\u6253\u5305\u5de5\u5177\u5728\u6587\u4ef6\u540d\u4e2d\u52a0\u5165\u54c8\u5e0c\uff0c\u4f8b\u5982 app.abc123.js\u3002\u914d\u5408 HTTP \u5934\u8bbe\u7f6e\uff1a<\/p>\n<ul>\n<li>Cache-Control: public, max-age=31536000, immutable<\/li>\n<li>\u8fd9\u6837\u80fd\u4f7f\u8fb9\u7f18\u8282\u70b9\u4e0e\u6d4f\u89c8\u5668\u957f\u671f\u7f13\u5b58\u9759\u6001\u8d44\u4ea7\uff0c\u663e\u8457\u63d0\u5347\u547d\u4e2d\u7387\u5e76\u51cf\u5c11\u56de\u6e90\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<h3>2. \u5206\u5c42\u7f13\u5b58\u4e0e\u77ed\u671f\/\u957f\u671f\u7ed3\u5408<\/h3>\n<p>\u5bf9\u4e8e\u9700\u8981\u9891\u7e41\u66f4\u65b0\u4f46\u53c8\u80fd\u5bb9\u5fcd\u77ed\u5ef6\u8fdf\u7684\u5185\u5bb9\uff0c\u53ef\u91c7\u7528\u5206\u5c42\u7b56\u7565\uff1a<\/p>\n<ul>\n<li>\u8fb9\u7f18\u8282\u70b9\u7f13\u5b58\u77ed TTL\uff08\u5982 60-300 \u79d2\uff09\uff0c\u5e76\u542f\u7528 Stale-While-Revalidate\uff0c\u8ba9\u65e7\u7248\u672c\u5728\u540e\u53f0\u5237\u65b0\u65f6\u7ee7\u7eed\u670d\u52a1\u3002<\/li>\n<li>\u6e90\u7ad9\u53ef\u8bbe\u7f6e\u8f83\u957f\u7684\u7f13\u5b58\u5e76\u914d\u5408 Cache Purge API \u5b9e\u65f6\u6e05\u7406\u7279\u5b9a\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<h3>3. \u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u56de\u6e90\uff08\u6761\u4ef6\u8bf7\u6c42\u4f18\u5316\uff09<\/h3>\n<p>ETag \u867d\u7136\u80fd\u51cf\u5c11\u6d41\u91cf\uff0c\u4f46\u6761\u4ef6\u8bf7\u6c42\u4ecd\u4f1a\u89e6\u53d1\u56de\u6e90\u3002\u63d0\u9ad8\u547d\u4e2d\u7387\u66f4\u6709\u6548\u7684\u505a\u6cd5\u662f\u907f\u514d\u5bf9\u9759\u6001\u8d44\u6e90\u4f7f\u7528\u5f3a\u5236\u9a8c\u8bc1\uff0c\u8f6c\u800c\u4f9d\u8d56\u7248\u672c\u5316\u4e0e\u957f TTL\uff1b\u5bf9\u9700\u8981\u9a8c\u8bc1\u7684\u8d44\u6e90\u4f7f\u7528 s-maxage \u4e0e\u4ee3\u7406\u7ea7\u63a7\u5236\u3002<\/p>\n<h3>4. \u8def\u5f84\u4e0e\u67e5\u8be2\u5b57\u7b26\u4e32\u5904\u7406<\/h3>\n<p>\u4e0d\u540c CDN \u5bf9\u67e5\u8be2\u5b57\u7b26\u4e32\u7684\u7f13\u5b58\u7b56\u7565\u4e0d\u540c\u3002\u5e38\u89c1\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li>\u5bf9\u9759\u6001\u8d44\u6e90\u5c3d\u91cf\u907f\u514d\u4f7f\u7528\u53d8\u5316\u7684\u67e5\u8be2\u53c2\u6570\uff1b\u82e5\u4e0d\u53ef\u907f\u514d\uff0c\u4f7f\u7528 CDN \u7684 Query String Whitelist\/Ignore \u529f\u80fd\u53ea\u5728\u5fc5\u8981\u53c2\u6570\u4e0a\u5206\u6d41\u3002<\/li>\n<li>\u5bf9 API \u8bf7\u6c42\u6309\u8def\u5f84\u5206\u6d41\uff0c\u4f7f\u7528 Cache key \u914d\u7f6e\uff08\u4f8b\u5982\u6309 Host + Path\uff0c\u4e0d\u5305\u542b Cookie\uff09\u4ee5\u63d0\u9ad8\u547d\u4e2d\u7387\u3002<\/li>\n<\/ul>\n<h3>5. 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