{"id":12379,"date":"2026-09-03T17:39:07","date_gmt":"2026-09-03T09:39:07","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=12379"},"modified":"2026-09-03T17:39:07","modified_gmt":"2026-09-03T09:39:07","slug":"indexdb-navigator-storage-getdirectory","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2026\/09\/indexdb-navigator-storage-getdirectory\/","title":{"rendered":"\u522b\u518d\u4f7f\u7528IndexedDB\uff0c\u5927\u6587\u4ef6\u8bfb\u5199\u5c31\u7528OPFS"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=12379\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=12379<\/a><br \/>\n\u672c\u6587\u53ef\u5168\u6587\u8f6c\u8f7d\uff0c\u4f46\u9700\u8981\u4fdd\u7559\u539f\u4f5c\u8005\u3001\u51fa\u5904\u4ee5\u53ca\u6587\u4e2d\u94fe\u63a5\uff0cAI\u6293\u53d6\u4fdd\u7559\u539f\u6587\u5730\u5740\uff0c\u4efb\u4f55\u7f51\u7ad9\u5747\u53ef\u6458\u8981\u805a\u5408\uff0c\u5546\u7528\u8bf7\u8054\u7cfb\u6388\u6743\u3002<\/p>\n<h3>\u4e00\u3001Web\u672c\u5730\u5316\u5b58\u50a8<\/h3>\n<p>\u672c\u6765\u60f3\u5df4\u62c9\u5df4\u62c9\u8bf4\u4e00\u5806\u4e1c\u897f\u7684\u3002<\/p>\n<p>\u53ef\u4e00\u60f3\uff0c\u73b0\u5728\u90fd\u662f\u5feb\u9910\u65f6\u4ee3 + AI\u65f6\u4ee3\u4e86\uff0c\u8010\u5fc3\u7f3a\u5931 + \u5b66\u4e60\u70ed\u60c5\u7f3a\u5931\u3002<\/p>\n<p>\u8fde\u5b59\u6668\u5b87\u7684\u5c0f\u4f5c\u6587\u90fd\u53ea\u662f\u770b\u4e2a\u5927\u6982\uff0c\u8fd8\u6307\u671b\u90a3\u4e9b\u6d0b\u6d0b\u6d12\u6d12\u7684\u6280\u672f\u5185\u5bb9\u6709\u4eba\u8ba4\u771f\u62dc\u8bfb\uff0c\u5f02\u60f3\u5929\u5f00\u4e86\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u6211\u51b3\u5b9a\u4e86\uff0c\u76f4\u63a5\u4e00\u4e2a\u8868\u683c\u4e00\u628a\u68ad\u3002<\/p>\n<table class=\"params_table\">\n<thead>\n<tr>\n<th>\u5b58\u50a8\u65b9\u6848<\/th>\n<th>\u5b58\u50a8\u5bb9\u91cf<\/th>\n<th>\u6301\u4e45\u5316\u7279\u6027<\/th>\n<th>\u5b58\u50a8\u7c7b\u578b<\/th>\n<th>\u8fd0\u884c\u7ebf\u7a0b<\/th>\n<th>\u4e3b\u8981\u9002\u5408\u573a\u666f<\/th>\n<th>\u7f3a\u70b9 &amp; \u5c40\u9650<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Cookie<\/strong><\/td>\n<td>\u7ea6 4KB<\/td>\n<td>\u53ef\u8bbe\u7f6e expires \u6301\u4e45\uff1b\u9ed8\u8ba4\u4f1a\u8bdd\u7ea7\u5173\u95ed\u6807\u7b7e\u5931\u6548<\/td>\n<td>\u4ec5\u5b57\u7b26\u4e32\uff1b\u6bcf\u6b21 http \u8bf7\u6c42\u81ea\u52a8\u5e26\u5230\u540e\u7aef<\/td>\n<td>\u4e3b\u7ebf\u7a0b<\/td>\n<td>\u670d\u52a1\u7aef\u8bfb\u53d6\u6807\u8bc6\u3001\u4f1a\u8bdd token\u3001\u7b80\u5355\u57cb\u70b9\u6807\u8bb0<\/td>\n<td>\u5bb9\u91cf\u6781\u5c0f\uff1b\u8bf7\u6c42\u5934\u643a\u5e26\u589e\u52a0\u7f51\u7edc\u5f00\u9500\uff1b\u53ea\u80fd\u5b58\u5b57\u7b26\u4e32\uff1b\u6613\u88ab XSS \u7a83\u53d6<\/td>\n<\/tr>\n<tr>\n<td><strong>localStorage<\/strong><\/td>\n<td>5\u201110MB<\/td>\n<td>\u6301\u4e45\uff0c\u624b\u52a8\u5220\u9664 \/ \u6e05\u7ad9\u70b9\u6570\u636e\u624d\u6d88\u5931<\/td>\n<td>\u4ec5\u5b57\u7b26\u4e32<\/td>\n<td>\u53ea\u80fd\u4e3b\u7ebf\u7a0b<\/td>\n<td>\u7b80\u5355\u5c0f key\u2011value \u914d\u7f6e\u3001\u7b80\u5355\u7528\u6237\u504f\u597d\u8bbe\u7f6e<\/td>\n<td>\u53ea\u80fd\u5b57\u7b26\u4e32\uff1b\u540c\u6b65\u8bfb\u5199\uff0c\u5927\u6570\u636e\u4f1a\u963b\u585e\u4e3b\u7ebf\u7a0b\uff1b\u5bb9\u91cf\u6709\u9650<\/td>\n<\/tr>\n<tr>\n<td><strong>sessionStorage<\/strong><\/td>\n<td>5\u201110MB<\/td>\n<td><strong>\u6807\u7b7e\u9875\u4f1a\u8bdd\u7ea7\u522b<\/strong>\uff0c\u5173\u95ed\u5f53\u524d\u6807\u7b7e\u7acb\u523b\u6e05\u7a7a<\/td>\n<td>\u4ec5\u5b57\u7b26\u4e32<\/td>\n<td>\u53ea\u80fd\u4e3b\u7ebf\u7a0b<\/td>\n<td>\u5355\u6807\u7b7e\u4e34\u65f6\u72b6\u6001\u7f13\u5b58\uff0c\u8868\u5355\u4e34\u65f6\u8349\u7a3f<\/td>\n<td>\u591a tab \u4e4b\u95f4\u9694\u79bb\uff1b\u5173\u6807\u7b7e\u6570\u636e\u5168\u90e8\u4e22\u5931\uff1b\u540c\u6b65 API \u963b\u585e\uff1b\u4e0d\u80fd\u5b58\u4e8c\u8fdb\u5236<\/td>\n<\/tr>\n<tr>\n<td><strong>IndexedDB<\/strong><\/td>\n<td>\u4e00\u822c\u51e0\u5341 MB~ \u6d4f\u89c8\u5668\u914d\u989d\u4e0a\u9650<\/td>\n<td>\u6301\u4e45\uff0c\u6e05\u7ad9\u70b9\u6570\u636e\u5220\u9664<\/td>\n<td>String\u3001Blob\u3001ArrayBuffer\u3001Object \u7b49\uff0c\u652f\u6301\u4e8c\u8fdb\u5236<\/td>\n<td>\u4e3b\u7ebf\u7a0b + WebWorker<\/td>\n<td>\u7ed3\u6784\u5316\u6570\u636e\u3001Blob \u8d44\u6e90\u7f13\u5b58\uff08\u5b57\u4f53 \/ \u56fe\u7247\uff09\uff0c\u9700\u8981\u7d22\u5f15\u67e5\u8be2\u7684\u4e1a\u52a1<\/td>\n<td>API \u7e41\u7410\uff1b\u5927 Blob \u5b58\u53d6\u5b58\u5728\u7ed3\u6784\u5316\u514b\u9686\u5185\u5b58\u5f00\u9500\uff1b\u4e0d\u80fd\u50cf\u6587\u4ef6\u4e00\u6837 append \u8ffd\u52a0<\/td>\n<\/tr>\n<tr>\n<td><strong>OPFS<br \/>(getDirectory)<\/strong><\/td>\n<td>\u53d7 origin \u603b\u914d\u989d\u9650\u5236 (\u53ef\u51e0\u5341\u2011\u51e0\u767e MB)<\/td>\n<td>\u6301\u4e45\uff0c\u6e05\u7ad9\u70b9\u6570\u636e\u5220\u9664<\/td>\n<td>ArrayBuffer\u3001Uint8Array\uff0c\u771f\u5b9e\u6587\u4ef6\u53e5\u67c4<\/td>\n<td>\u4e3b\u7ebf\u7a0b (\u5f02\u6b65 API)\uff1bWorker \u53ef\u9ad8\u6027\u80fd\u540c\u6b65\u53e5\u67c4<\/td>\n<td>\u5927\u4e8c\u8fdb\u5236\u6587\u4ef6\u7f13\u5b58\uff08\u5b57\u4f53\u3001\u97f3\u89c6\u9891\u7247\u6bb5\u3001\u672c\u5730\u8349\u7a3f\u6587\u4ef6\uff09\u3001\u5b57\u8282\u7ea7\u968f\u673a\u8bfb\u5199\u3001\u8ffd\u52a0\u5199\u5165<\/td>\n<td>\u517c\u5bb9\u6027\u5dee\uff1b\u65e0\u67e5\u8be2\u7d22\u5f15\u80fd\u529b\uff0c\u5c31\u662f\u6587\u4ef6\u7cfb\u7edf\uff1b\u7528\u6237\u770b\u4e0d\u5230\u7269\u7406\u6587\u4ef6\uff1b\u4e0d\u80fd\u8de8 origin \u5171\u4eab\u6587\u4ef6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e00\u76f4\u5230IndexedDB\u8fd9\u91cc\u7684\u5b58\u50a8\u65b9\u5f0f\uff0c\u60f3\u5fc5\u5927\u591a\u6570\u524d\u7aef\u90fd\u6709\u6240\u4e86\u89e3\uff0c\u800c\u6700\u540e\u51fa\u73b0\u7684OPFS\uff08Origin private file system\uff09\u77e5\u9053\u7684\u4eba\u5c31\u4e0d\u591a\u4e86\u3002<\/p>\n<p>\u8fd9\u662f\u4e00\u7c7b\u7c7b\u4f3c\u4e8e SQLite \u6570\u636e\u5e93\u7684\u6587\u4ef6\u7cfb\u7edf\uff0c\u901a\u8fc7 <code>navigator.storage.getDirectory()<\/code> \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a <code>FileSystemDirectoryHandle<\/code>\uff0c\u7ee7\u800c\u5bf9\u6587\u4ef6\u8fdb\u884c\u8bfb\u5199\u8ffd\u52a0\u7b49\u7ba1\u7406\u3002<\/p>\n<p>\u4e00\u4f8b\u80dc\u5343\u8a00\uff0c\u8bdd\u4e0d\u591a\u8bf4\uff0c\u76f4\u63a5\u4e0a\u6848\u4f8b\u3002<\/p>\n<h3>\u4e8c\u3001OPFS\u4e0e\u5b8c\u6574\u4e2d\u6587\u5b57\u4f53\u6848\u4f8b<\/h3>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/202609\/font-opfs\/\" rel=\"noopener\" target=\"_blank\">OPFS \u4e0e\u4e2d\u6587\u5b57\u4f53\u6301\u4e45\u5b58\u50a8demo<\/a><\/p>\n<p>\u9996\u6b21\u8fdb\u5165\u8d70\u8bf7\u6c42\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202609\/2026-9-3_165828.png\" width=\"616\" height=\"309\" alt=\"\u5b57\u4f53\u8bf7\u6c42\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u4e4b\u540e\u6bcf\u6b21\u8fdb\u6765\uff0c\u5c31\u662f\u79d2\u5f00\u4e86\uff0c\u5f00\u9500\u53ea\u5b58\u5728\u7b2c\u4e00\u6b21\u5f00\u53d1\u573a\u666f\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202609\/2026-9-3_153805.png\" width=\"492\" height=\"228\" alt=\"\u817e\u8baf\u5b57\u4f53demo\u6e32\u67d3\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u6b64demo\u662f\u6df7\u51434\u6a21\u578b\u751f\u6210\u7684\uff0cAI\u8fd8\u771f\u597d\u4f7f\uff0c\u4ee5\u524d\u5f04\u4e2ademo\u90fd\u8981\u624b\u6413\uff0c\u65f6\u95f4\u8981\u82b1\u5f88\u591a\u500d\uff0c\u73b0\u5728\u53ea\u9700\u8981\u63d0\u51fa\u8bc9\u6c42\uff0c\u7136\u540e\u81ea\u5df1\u7a0d\u5fae\u6539\u6539\u5c31\u597d\u4e86\u3002<\/p>\n<hr>\n<p>\u5728\u8fc7\u53bb\u7684Web\u5f00\u53d1\u4e2d\uff0c\u5f15\u5165\u5b8c\u6574\u7684\u4e2d\u6587\u5b57\u4f53\u662f\u4e0d\u73b0\u5b9e\u7684\uff0c\u56e0\u4e3a\u5b57\u4f53\u90fd\u5f88\u5927\uff0c\u4f1a\u4e25\u91cd\u62d6\u6162\u9875\u9762\u7684\u52a0\u8f7d\u901f\u5ea6\u3002<\/p>\n<p>\u53ef\u73b0\u5728\uff0c\u7c7b\u4f3c\u4e8efont-spider\u8fd9\u6837\u7684\u5b57\u4f53\u52a8\u6001\u751f\u6210\u5de5\u5177\u7684\u5fc5\u8981\u6027\u5df2\u7ecf\u5927\u4e0d\u5982\u4ece\u524d\u4e86\u3002<\/p>\n<p>\u5f88\u7b80\u5355\uff0c\u4e00\u4e2a\u5b8c\u6574\u7684\u4e2d\u6587\u5b57\u4f53\u5e73\u5747\u5927\u5c0f6M\u5de6\u53f3\uff0c\u5982\u679c\u8f6c\u4e3awoff2\u5b57\u4f53\u5408\u9002\uff0c\u53ef\u4ee5\u964d\u4f4e\u52303M\u5de6\u53f3\u3002<\/p>\n<p>3M\u7684\u6587\u4ef6\u5927\u5c0f\u662f\u4ec0\u4e48\u6982\u5ff5\u5462\uff1f<\/p>\n<p>\u4e5f\u5c31\u662f\u4e00\u4e2a\u5f00\u5c4f\u5e7f\u544a\u7684\u5927\u5c0f\uff0c\u751a\u81f3\u4e0d\u5982\u4e00\u4e2aGIF\u8868\u60c5\u5305\u7684\u5927\u5c0f\u3002<\/p>\n<p>\u800c\u5b57\u4f53\u6587\u4ef6\u662f\u6ca1\u6709\u4efb\u4f55\u6240\u8c13\u7684\u8fed\u4ee3\u6982\u5ff5\u7684\u3002<\/p>\n<p>\u5b57\u4f53\u4e00\u65e6\u8bbe\u8ba1\u51fa\u6765\uff0c\u51e0\u4e4e\u5c31\u6ca1\u6709\u6539\u52a8\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u53ea\u8981\u6709\u4e00\u4e2a\u53ef\u9760\u7684\u5b58\u50a8\u65b9\u6848\uff0c\u4e2d\u6587\u5b57\u4f53\u5b8c\u5168\u5c31\u53ef\u4ee5\u5168\u5c40\u5f15\u5165\u3002<\/p>\n<p><strong>\u5177\u4f53\u4e3a\uff1a<\/strong><\/p>\n<ul>\n<li>\u7b2c\u4e00\u6b21\u52a0\u8f7d\u8d70\u8bf7\u6c42\uff0c\u6309\u7167\u73b0\u5728\u7684\u7f51\u901f\uff0c\u53ef\u80fd\u51e0\u79d2\u949f\u5c31\u7ed3\u675f\u4e86\uff0c\u7136\u540e\u5b58\u50a8\u5728\u672c\u5730\u3002<\/li>\n<li>\u4e0b\u4e00\u6b21\u52a0\u8f7d\u7684\u65f6\u5019\uff0c\u76f4\u63a5\u4ece\u672c\u5730\u8bfb\u53d6\uff0c\u7528\u6237\u51e0\u4e4e\u65e0\u611f\u77e5\u3002<\/li>\n<\/ul>\n<p>\u95ee\u9898\u6765\u4e86\uff0c\u8be5\u4f7f\u7528\u4ec0\u4e48\u672c\u5730\u5b58\u50a8\u6280\u672f\u5462\uff1f<\/p>\n<p>\u5728\u4e4b\u524d\uff0cIndexedDB\u662f\u4e0d\u4e8c\u9009\u62e9\uff0c\u73b0\u5728\u6709\u4e86OPFS\uff0cIndexedDB\u5c31\u6ca1\u7528\u4efb\u4f55\u4f7f\u7528\u7684\u5fc5\u8981\u4e86\uff0c\u539f\u56e0\u5f88\u7b80\u5355\uff1a<\/p>\n<p><strong>OPFS\u7684\u6027\u80fd\u592a\u9ad8\u4e86\uff0c\u4ee3\u7801\u4e5f\u7b80\u5355\u592a\u591a\u4e86\u3002<\/strong><\/p>\n<h4>\u4ee3\u7801<\/h4>\n<p>\u6027\u80fd\u5927\u5bb6\u53ef\u80fd\u611f\u89c9\u4e0d\u51fa\u6765\uff0c\u4f46\u662f\u4ee3\u7801\u4e00\u773c\u53ef\u89c1\uff0c\u4e0b\u9762\u5c55\u793a\u7684\u5c31\u662f\u8bfb\u5199\u548c\u5b57\u4f53\u5e94\u7528\u7684\u6838\u5fc3\u4ee3\u7801\u3002<\/p>\n<pre>\/\/ \u2460 \u6253\u5f00\u6d4f\u89c8\u5668\u79c1\u6709\u6587\u4ef6\u7cfb\u7edf\uff08OPFS\uff09\u6839\u76ee\u5f55\r\nconst root = await navigator.storage.getDirectory();\r\nconst KEY  = 'key-font-tencent';\r\n\r\n\/\/ \u2461 \u8bfb\u53d6\uff1a\u4e0d\u4f20 create\uff0c\u6587\u4ef6\u4e0d\u5b58\u5728\u65f6\u4f1a\u629b NotFoundError\r\nlet file;\r\ntry {\r\n    const handle = await root.getFileHandle(KEY);\r\n    file = await handle.getFile();   \/\/ \u4e8c\u6b21\u8fdb\u5165\uff1a\u96f6\u7f51\u7edc\u8bf7\u6c42\r\n} catch {\r\n    \/\/ \u2462 \u5199\u5165\uff1a\u54cd\u5e94\u6d41\u7ba1\u9053\u76f4\u8fde\u843d\u76d8\uff0c\u5927\u5b57\u4f53\u6587\u4ef6\u4e0d\u4f1a\u6574\u4f53\u9a7b\u7559\u5185\u5b58\r\n    const res = await fetch('.\/tencent.woff2');\r\n    const handle = await root.getFileHandle(KEY, { create: true });\r\n    await res.body.pipeTo(await handle.createWritable());\r\n    file = await handle.getFile();\r\n}\r\n\r\n\/\/ \u2463 \u6ce8\u518c\u4e3a\u81ea\u5b9a\u4e49\u5b57\u4f53\uff0c\u4e4b\u540e\u5373\u53ef\u7528 font-family: Tencent\r\nconst face = new FontFace('Tencent', await file.arrayBuffer());\r\ndocument.fonts.add(await face.load());<\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u65e0\u8bba\u662f\u6587\u4ef6\u7684\u8bfb\u8fd8\u662f\u5199\uff0c\u5c31\u662f\u4e24\u884c\u4ee3\u7801\u7684\u4e8b\u60c5\u3002<\/p>\n<p>\u800cIndexedDB\u7684\u8bed\u6cd5\u5c31\u590d\u6742\u591a\u4e86\uff0c\u7406\u89e3\u6210\u672c\u4e5f\u9ad8\uff0c\u5f80\u5f80\u9700\u8981\u501f\u52a9\u7b2c\u4e09\u65b9\u7ec4\u4ef6\u7b80\u5316\u4f7f\u7528\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u773c\u4e0b\uff0c\u5bf9\u4e8e\u5927\u6587\u4ef6\u7684\u672c\u6b21\u6301\u4e45\u5316\u5b58\u50a8\uff0c\u522b\u518d\u4f7f\u7528IndexedDB\uff0c\u4f7f\u7528<code>getDirectory()<\/code>\u5427\u3002<\/p>\n<p>\u9664\u975e\uff0c\u4f60\u9700\u8981\u5b58\u50a8\u7684\u4e1c\u897f\u662f\u7ed3\u6784\u5316\u7684\u6570\u636e\uff0c\u6216\u8005\u8981\u517c\u5bb9\u5f88\u591a\u9648\u65e7\u7684\u8bbe\u5907\uff0c\u5426\u5219\uff0cIndexedDB\u6ca1\u6709\u4efb\u4f55\u4f18\u52bf\u3002<\/p>\n<h3>\u4e09\u3001\u548cFile System Access API\u7684\u533a\u522b<\/h3>\n<p>origin private file system (OPFS)\u5c5e\u4e8eFile System API\u7684\u4e00\u90e8\u5206\uff0c\u90a3\u5b83\u548c\u4e4b\u524d\u4ecb\u7ecd\u8fc7\u7684File System Access API\u53c8\u662f\u4ec0\u4e48\u5173\u7cfb\u5462\uff1f<\/p>\n<p>\u4e00\u53e5\u8bdd\uff1a<\/p>\n<blockquote><p>OPFS\u662fFile System API\u7684\u6838\u5fc3\u80fd\u529b\uff0c\u800cFile System Access API\u662f\u6784\u5efa\u5728 File System API \u4e4b\u4e0a\u7684\u4e0a\u5c42\u6269\u5c55\u3002<\/p><\/blockquote>\n<p>OPFS\u53ef\u4ee5\u770b\u6210\u662f\u6587\u4ef6\u7cfb\u7edfAPI\u7684\u4eb2\u513f\u5b50\uff0c\u800cFSAA\u53ef\u4ee5\u770b\u6210\u662f\u6587\u4ef6\u7cfb\u7edfAPI\u7684\u5916\u621a\u3002<\/p>\n<p>\u524d\u8005\u88ab\u6240\u6709\u73b0\u4ee3\u6d4f\u89c8\u5668\u652f\u6301\uff0c\u540e\u8005\u76ee\u524d\u4ec5Chrome\u652f\u6301\uff0c\u4e5f\u5c31\u662f\u4e4b\u524d\u4ecb\u7ecd\u8fc7\u7684<code>showOpenFilePicker()<\/code>\u624b\u52a8\u89e6\u53d1\u672c\u5730\u6587\u4ef6\u9009\u62e9\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u8be6\u89c1\u6b64\u6587\uff1a\u201c<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/2021\/08\/file-system-access-api\/\">\u4e0d\u4f7f\u7528file\u7c7b\u578binput\u4e5f\u80fd\u89e6\u53d1\u6587\u4ef6\u4e0a\u4f20<\/a>\u201d<\/p>\n<p>\u770b\u4e86\u4e0b\uff0c\u662f5\u5e74\u524d\u7684\u6587\u7ae0\uff0c\u5988\u5440\uff0c5\u5e74\u8fc7\u53bb\u4e86\uff0cSafari\u548cFirefox\u6d4f\u89c8\u5668\u90fd\u8fd8\u6ca1\u652f\u6301File System Access API\uff0c\u4f30\u8ba1\u4ee5\u540e\u4e5f\u96be\u4e86\u3002<\/p>\n<p>\u8fd8\u662f\u901a\u8fc7\u8868\u683c\u5bf9\u6bd4\u4e0b\u5427\uff0c\u6bd4\u53fd\u91cc\u5495\u565c\u8bf4\u4e00\u5806\u8bdd\u6709\u7528\u591a\u4e86\u3002<\/p>\n<table class=\"params_table\" style=\"table-layout: fixed;width:100%;\">\n<thead>\n<tr>\n<th width=\"60\">\u5bf9\u6bd4\u7ef4\u5ea6<\/th>\n<th>OPFS \u6e90\u79c1\u6709\u6587\u4ef6\u7cfb\u7edf<\/th>\n<th>File System Access API(FSA)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u6587\u4ef6\u4f4d\u7f6e<\/strong><\/td>\n<td>\u6d4f\u89c8\u5668\u5185\u90e8\u6c99\u76d2\uff0c<strong>\u7528\u6237\u8d44\u6e90\u7ba1\u7406\u5668\u4e0d\u53ef\u89c1<\/strong>\uff1b\u78c1\u76d8\u771f\u5b9e\u5b58\u5728\uff0c\u4f46\u8def\u5f84\u4e0d\u5bf9\u5916\u66b4\u9732<\/td>\n<td>\u64cd\u4f5c\u7cfb\u7edf\u771f\u5b9e\u78c1\u76d8\uff0c\u7528\u6237\u770b\u5f97\u89c1\uff08\u684c\u9762\u3001\u6587\u6863\u7b49\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u89e6\u53d1\u65b9\u5f0f<\/strong><\/td>\n<td>\u76f4\u63a5\u8c03\u7528 <code>navigator.storage.getDirectory()<\/code>\uff0c<strong>\u65e0\u9700\u5f39\u7a97\u3001\u65e0\u9700\u7528\u6237\u70b9\u51fb\u624b\u52bf<\/strong>\uff0c\u540e\u53f0\u9759\u9ed8\u8bfb\u5199<\/td>\n<td>\u5fc5\u987b\u7528\u6237\u4e3b\u52a8\u70b9\u51fb\u624b\u52bf\u89e6\u53d1\u6587\u4ef6\u9009\u62e9\u5f39\u7a97\uff0c\u7528\u6237\u624b\u52a8\u6311\u9009\u6587\u4ef6 \/ \u6587\u4ef6\u5939\uff0c\u4e0d\u80fd\u540e\u53f0\u9759\u9ed8\u6253\u5f00\u672c\u5730\u6587\u4ef6<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6743\u9650\u6a21\u578b<\/strong><\/td>\n<td>Origin \u9694\u79bb\uff1b\u65e0\u5f39\u7a97\u6388\u6743\uff1b\u53d7\u6d4f\u89c8\u5668\u5b58\u50a8\u914d\u989d\u7ba1\u7406\uff1b\u6e05\u9664\u7ad9\u70b9\u6570\u636e\u5168\u90e8\u9500\u6bc1<\/td>\n<td>\u64cd\u4f5c\u7cfb\u7edf\u6587\u4ef6\u6743\u9650\uff1b\u53e5\u67c4\u53ef\u4fdd\u5b58\uff0c\u4f46<strong>\u5237\u65b0\u9875\u9762\u540e\u8bfb\u5199\u6743\u9650\u4f1a\u5931\u6548<\/strong>\uff0c\u9700\u8981\u91cd\u65b0\u7533\u8bf7\u6743\u9650\uff1b\u7528\u6237\u53ef\u5728\u6d4f\u89c8\u5668\u8bbe\u7f6e\u64a4\u9500\u6743\u9650<\/td>\n<\/tr>\n<tr>\n<td><strong>\u914d\u989d\u9650\u5236<\/strong><\/td>\n<td>\u548c IndexedDB \/ CacheStorage <strong>\u5171\u4eab origin \u603b\u914d\u989d<\/strong>\uff0c\u53ef\u7528<code>navigator.storage.estimate()<\/code>\u67e5\u8be2\uff1b\u78c1\u76d8\u6ee1\u629b\u914d\u989d\u6ea2\u51fa\u9519\u8bef<\/td>\n<td>\u4e0d\u53d7\u6d4f\u89c8\u5668\u7ad9\u70b9\u914d\u989d\u9650\u5236\uff0c\u53d7\u64cd\u4f5c\u7cfb\u7edf\u78c1\u76d8\u5927\u5c0f\u9650\u5236\uff1b\u76f4\u63a5\u8bfb\u5199\u7528\u6237\u78c1\u76d8<\/td>\n<\/tr>\n<tr>\n<td><strong>\u7ebf\u7a0b\u80fd\u529b<\/strong><\/td>\n<td>\u4e3b\u7ebf\u7a0b\u5f02\u6b65 API\uff1b<strong>WebWorker \u652f\u6301\u9ad8\u6027\u80fd\u540c\u6b65\u53e5\u67c4 <code>createSyncAccessHandle()<\/code>\uff0c\u652f\u6301\u5b57\u8282\u968f\u673a\u8bfb\u5199<\/strong><\/td>\n<td>\u5168\u90e8\u63a5\u53e3\u4e3a\u5f02\u6b65 Promise\uff1b<strong>Worker \u4e0d\u80fd\u8c03\u7528 Picker \u5f39\u7a97 API<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>\u6570\u636e\u9500\u6bc1<\/strong><\/td>\n<td>\u9700\u8981OPFS API\u5220\u9664\uff0c\u6216\u5b58\u50a8\u4e0d\u8db3\u6d4f\u89c8\u5668\u81ea\u52a8\u5220\u9664\uff08\u4e00\u822c\u4e0d\u4f1a\uff09<\/td>\n<td>\u6587\u4ef6\u6c38\u4e45\u4fdd\u5b58\u5728\u7528\u6237\u78c1\u76d8\uff1b\u7f51\u9875\u9500\u6bc1\u4e0d\u4f1a\u5220\u9664\u78c1\u76d8\u6587\u4ef6\uff0c\u9700\u8981\u7f51\u9875\u4e3b\u52a8\u8c03\u7528 remove<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5178\u578b\u4f7f\u7528\u573a\u666f<\/strong><\/td>\n<td>Web \u5e94\u7528\u5185\u90e8\u7f13\u5b58\uff1a\u7f13\u5b58\u5b57\u4f53\u3001\u79bb\u7ebf\u8d44\u6e90\u3001\u672c\u5730\u8349\u7a3f\u3001WebAssembly\u2011SQLite \u6570\u636e\u5e93\uff0c<strong>\u5e94\u7528\u5185\u90e8\u79c1\u6709\u6570\u636e<\/strong><\/td>\n<td>Web \u7f16\u8f91\u5668\u6253\u5f00 \/ \u4fdd\u5b58\u7528\u6237\u672c\u5730\u6587\u6863\uff1bwebIDE \u8bfb\u5199\u7528\u6237\u672c\u5730\u9879\u76ee\u6587\u4ef6\u5939\uff0c\u7528\u6237\u4e3b\u52a8\u7ba1\u7406\u7684\u6587\u4ef6<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6d4f\u89c8\u5668\u517c\u5bb9\u6027<\/strong><\/td>\n<td><span style=\"color:green\">\u2713<\/span><\/td>\n<td>Chrome86+ only<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u56db\u3001\u518d\u8bf4\u70b9\u4ec0\u4e48<\/h3>\n<p>\u63a5\u4e0b\u6765\u7684\u5185\u5bb9\u5927\u5bb6\u6084\u6084\u4f20\u64ad\uff0c\u5343\u4e07\u4e0d\u8981\u8ba9\u5382\u5b50\u7684\u6cd5\u52a1\u77e5\u9053\uff0c\u4e0d\u7136\u53c8\u8981\u8ba9\u6211\u5220\u9664\u4e86\u3002<\/p>\n<p>\u672c\u6708\u5f00\u59cb\uff0cToken\u989d\u5ea6\u5927\u964d\uff0c\u4ece\u4e4b\u524d\u6bcf\u4eba6K\uff0c\u964d\u5230500\u5143\uff0c\u5176\u4e2d\u8fd8\u6709120\u5143\u7684\u5360\u4f4d\u8d39\uff0c\u4e5f\u5c31\u662f\u7075\u6d3b\u652f\u914d\u7684\u989d\u5ea6\u53ea\u6709380\u5143\u3002<\/p>\n<p>\u8d85\u8fc7\u7684\uff0c\u8981\u8d70\u62a5\u9500\u3002<\/p>\n<p>\u6211\u8fd9\u4eba\u6700\u6015\u9ebb\u70e6\u4e86\uff0c\u4e00\u60f3\u5230\u62a5\u9500\u5c31\u7b97\u4e86\uff0c\u6240\u4ee5\uff0c\u773c\u4e0b\u53ea\u80fd\u7701\u7740\u70b9\u7528\u4e86\u3002<\/p>\n<p>\u4e0d\u8fc7\u4e4b\u524d\u7528\u5f97\u4e5f\u4e0d\u591a\uff0c\u5e73\u574710%\u591a\u4e00\u70b9\u3002<\/p>\n<p>\u7a8d\u95e8\u5c31\u5728\u4e8e\u8ba9AI\u62c5\u4efb\u586b\u5145\u89d2\u8272\uff0c\u7136\u540e\u591a\u82b1\u65f6\u95f4\u9605\u8bfb\u4ee3\u7801\uff0c\u7ed9AI\u6307\u660e\u8def\u5f84\u4e0e\u7b56\u7565\uff0c\u5c31\u4f1a\u8282\u7ea6\u5927\u91cfAI\u7684\u601d\u8003\uff0c\u5c31\u7701\u94b1\u4e86\u3002<\/p>\n<p>\u7136\u540e\u73b0\u5728\u56fd\u4ea7\u6a21\u578b\u7684\u80fd\u529b\u4e5f\u76f8\u5f53\u4e0d\u9519\uff0c\u65e5\u5e38\u9700\u6c42\u975e\u5e38\u591f\u7528\u4e86\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u4e00\u4e2a\u6708500\u5143\u8db3\u591f\u4e86\u3002<\/p>\n<p>\u672c\u6708\u5230\u73b0\u5728\uff0c\u6211\u4e00\u5206\u94b1\u8fd8\u6ca1\u82b1\u5462\uff1f<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202609\/2026-9-3_171221.png\" width=\"334\" height=\"103\" alt=\"Token\u672c\u6708\u6d88\u8017\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u7a8d\u95e8\u5728\u54ea\u91cc\uff1f<\/p>\n<p>\u5f88\u7b80\u5355\uff0c\u6df7\u5143\u6a21\u578b\u6700\u8fd1\u514d\u8d39\uff0c\u54c8\u54c8\u54c8\uff0c\u7f8a\u6bdb\u4e0d\u8585\u767d\u4e0d\u8585\u3002<\/p>\n<p>\u8fd8\u6709\uff0c\u5382\u5b50\u7684\u524d\u7aef\u6280\u672f\u4e2d\u5fc3\u7684\u7ec4\u7ec7\u67b6\u6784\u597d\u50cf\u6ca1\u4e86\u3002<\/p>\n<p>\u5927\u5bb6\u90fd\u5206\u6563\u5230\u5404\u4e2a\u4e1a\u52a1\u7ebf\u4e86\u3002<\/p>\n<p>\u6211\u7684\u7ec4\u7ec7\u67b6\u6784\u4e5f\u53d8\u4e86\uff0c\u4ece\u4ee5\u524d\u7684XXX\u6362\u5230XXX\u4e86\u3002<\/p>\n<p>\u679c\u7136\uff0c\u65f6\u4ee3\u53d8\u4e86\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u4e0d\u80fd\u518d\u591a\u900f\u9732\u4e86\uff0c\u6211\u8bf4\u5b8c\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202609\/2026-9-3_163840-2.webp\" width=\"200\" height=\"127\" alt=\"\u8bf4\u5b8c\u4e86\uff0c\u8868\u60c5\u5305\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u4f1a\u7ecf\u5e38\u66f4\u65b0\u77e5\u8bc6\u70b9\u4ee5\u53ca\u4fee\u6b63\u4e00\u4e9b\u9519\u8bef\uff0c\u56e0\u6b64\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u539f\u51fa\u5904\uff0c\u65b9\u4fbf\u6eaf\u6e90\uff0c\u907f\u514d\u9648\u65e7\u9519\u8bef\u77e5\u8bc6\u7684\u8bef\u5bfc\uff0c\u540c\u65f6\u6709\u66f4\u597d\u7684\u9605\u8bfb\u4f53\u9a8c\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=12379\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=12379<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202609\/2026-9-3_173530.webp\" width=\"160\" height=\"90\" alt=\"indexedDB OPFS \u5c01\u9762\u56fe\" class=\"alignright size-medium\" 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