{"id":39753,"date":"2025-05-25T22:08:27","date_gmt":"2025-05-25T14:08:27","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/39753.html"},"modified":"2025-05-25T22:08:27","modified_gmt":"2025-05-25T14:08:27","slug":"vue-ofd-pdf%e9%a2%84%e8%a7%88%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/39753.html","title":{"rendered":"vue--ofd\/pdf\u9884\u89c8\u5b9e\u73b0"},"content":{"rendered":"<h2>\u80cc\u666f<\/h2>\n<p>\u5b9e\u73b0\u9884\u89c8ofd\/pdf\u8d85\u94fe\u63a5\u529f\u80fd<\/p>\n<h2>\u4e1a\u52a1\u5b9e\u73b0<\/h2>\n<li>\n<p>pdf\u7684\u9884\u89c8<\/p>\n<p>\u5b9e\u73b0\u65b9\u5f0f&#xff1a;<\/p>\n<li>\n<p>\u76f4\u63a5\u4f7f\u7528 &lt;iframe :src&#061;&#034;${url}#navpanes&#061;0&amp;toolbar&#061;0&#034; \/&gt; \u5b9e\u73b0pdf\u7684\u9884\u89c8\u3002<\/p>\n<ul>\n<li>navpanes&#061;0 \u9690\u85cf\u4fa7\u8fb9\u680f<\/li>\n<li>toolbar&#061;0 \u9690\u85cf\u9876\u90e8\u5de5\u5177\u680f<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4f7f\u7528pdf.js&#xff0c;\u4ee3\u7801\u5148\u884c&#xff1a;<\/p>\n<p> <span class=\"token operator\">&lt;<\/span>template<span class=\"token operator\">&gt;<\/span><br \/>\n  <span class=\"token operator\">&lt;<\/span>a<span class=\"token operator\">&#8211;<\/span>tabs<br \/>\n    v<span class=\"token operator\">&#8211;<\/span><span class=\"token keyword\">if<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;props.urls.length &gt; 0&#034;<\/span><br \/>\n    <span class=\"token operator\">:<\/span><span class=\"token keyword\">default<\/span><span class=\"token operator\">&#8211;<\/span>active<span class=\"token operator\">&#8211;<\/span>key<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;activateTab&#034;<\/span><br \/>\n    type<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;card&#034;<\/span><br \/>\n    <span class=\"token keyword\">class<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;pdf-tabs&#034;<\/span><br \/>\n    &#064;change<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;tabChangeHandler&#034;<\/span><br \/>\n  <span class=\"token operator\">&gt;<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span>a<span class=\"token operator\">&#8211;<\/span>tab<span class=\"token operator\">&#8211;<\/span>pane v<span class=\"token operator\">&#8211;<\/span><span class=\"token keyword\">for<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;url in props.urls&#034;<\/span> <span class=\"token operator\">:<\/span>key<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;url&#034;<\/span> <span class=\"token operator\">:<\/span>tab<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;fileName(url)&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n      <span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;pdf-container&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span>canvas<br \/>\n          v<span class=\"token operator\">&#8211;<\/span><span class=\"token keyword\">if<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;url.endsWith(&#039;.pdf&#039;)&#034;<\/span><br \/>\n          <span class=\"token keyword\">class<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;canvas&#034;<\/span><br \/>\n          <span class=\"token operator\">:<\/span>ref<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;(el) &#061;&gt; (canvasRefs[url] &#061; el)&#034;<\/span><br \/>\n        <span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>canvas<span class=\"token operator\">&gt;<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span>a<span class=\"token operator\">&#8211;<\/span>button <span class=\"token keyword\">class<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;mb-2&#034;<\/span> type<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;link&#034;<\/span> &#064;click<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;handleDownload(url)&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n          <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">{<\/span> <span class=\"token function\">fileName<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>a<span class=\"token operator\">&#8211;<\/span>button<span class=\"token operator\">&gt;<\/span><br \/>\n      <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>a<span class=\"token operator\">&#8211;<\/span>tab<span class=\"token operator\">&#8211;<\/span>pane<span class=\"token operator\">&gt;<\/span><br \/>\n  <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>a<span class=\"token operator\">&#8211;<\/span>tabs<span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/p>\n<p><span class=\"token operator\">&lt;<\/span>script lang<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;ts&#034;<\/span> setup<span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> ref<span class=\"token punctuation\">,<\/span> watch<span class=\"token punctuation\">,<\/span> nextTick <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;vue&#039;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">as<\/span> pdfjsLib <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;pdfjs-dist&#039;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> debounce <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;lodash-es&#039;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> saveAs <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;file-saver&#039;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> EasyOFD <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;easyofd&#039;<\/span><\/p>\n<p><span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">Props<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  urls<span class=\"token operator\">?<\/span><span class=\"token operator\">:<\/span> string<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">const<\/span> props <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">withDefaults<\/span><span class=\"token punctuation\">(<\/span>defineProps<span class=\"token operator\">&lt;<\/span>Props<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function-variable function\">urls<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">const<\/span> url <span class=\"token operator\">&#061;<\/span> ref<span class=\"token operator\">&lt;<\/span>string<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">const<\/span> activateTab <span class=\"token operator\">&#061;<\/span> ref<span class=\"token operator\">&lt;<\/span>string<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">const<\/span> canvasRefs <span class=\"token operator\">&#061;<\/span> ref<span class=\"token operator\">&lt;<\/span>Record<span class=\"token operator\">&lt;<\/span>string<span class=\"token punctuation\">,<\/span> HTMLCanvasElement <span class=\"token operator\">|<\/span> <span class=\"token keyword\">null<\/span><span class=\"token operator\">&gt;&gt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u7c7b\u578b\u5224\u65ad<\/span><br \/>\n<span class=\"token keyword\">const<\/span> ext <span class=\"token operator\">&#061;<\/span> ref<span class=\"token operator\">&lt;<\/span>string<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;pdf&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">const<\/span> isOfd <span class=\"token operator\">&#061;<\/span> ref<span class=\"token operator\">&lt;<\/span>boolean<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">const<\/span> isPdf <span class=\"token operator\">&#061;<\/span> ref<span class=\"token operator\">&lt;<\/span>boolean<span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/  \u8bbe\u7f6e PDF.js worker \u8def\u5f84&#xff08;\u63a8\u8350\u65b9\u5f0f&#xff09;<\/span><br \/>\npdfjsLib<span class=\"token punctuation\">.<\/span>GlobalWorkerOptions<span class=\"token punctuation\">.<\/span>workerSrc <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;\/pdf.worker.min.mjs&#039;<\/span><\/p>\n<p><span class=\"token comment\">\/\/  \u4ece URL \u4e2d\u63d0\u53d6\u6587\u4ef6\u540d<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">fileName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\"><span class=\"token literal-property property\">url<\/span><span class=\"token operator\">:<\/span> string<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> string <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> decodeURL <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">decodeURIComponent<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">split<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> lastSegment <span class=\"token operator\">&#061;<\/span> decodeURL<span class=\"token punctuation\">[<\/span>decodeURL<span class=\"token punctuation\">.<\/span>length <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>    <span class=\"token keyword\">const<\/span> firstIndex <span class=\"token operator\">&#061;<\/span> lastSegment<span class=\"token punctuation\">.<\/span><span class=\"token function\">indexOf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;-&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> lastIndex <span class=\"token operator\">&#061;<\/span> lastSegment<span class=\"token punctuation\">.<\/span><span class=\"token function\">lastIndexOf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;-&#039;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>firstIndex <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span> <span class=\"token operator\">||<\/span> lastIndex <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span> <span class=\"token operator\">||<\/span> lastIndex <span class=\"token operator\">&lt;&#061;<\/span> firstIndex<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">return<\/span> lastSegment<span class=\"token punctuation\">.<\/span><span class=\"token function\">split<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;.&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token comment\">\/\/ fallback \u6587\u4ef6\u540d<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">const<\/span> name <span class=\"token operator\">&#061;<\/span> lastSegment<span class=\"token punctuation\">.<\/span><span class=\"token function\">substring<\/span><span class=\"token punctuation\">(<\/span>firstIndex <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> lastIndex<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> ext <span class=\"token operator\">&#061;<\/span> name<span class=\"token punctuation\">.<\/span><span class=\"token function\">split<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;.&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">pop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;pdf&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;ofd&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">includes<\/span><span class=\"token punctuation\">(<\/span>ext <span class=\"token operator\">??<\/span> <span class=\"token string\">&#039;&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token keyword\">return<\/span> name<span class=\"token punctuation\">.<\/span><span class=\"token function\">substring<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> name<span class=\"token punctuation\">.<\/span><span class=\"token function\">lastIndexOf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;.&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> name<br \/>\n  <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#039;unknown&#039;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u83b7\u53d6\u6587\u4ef6\u7c7b\u578b<\/span><br \/>\n<span class=\"token keyword\">const<\/span> <span class=\"token function-variable function\">getFileType<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\"><span class=\"token literal-property property\">url<\/span><span class=\"token operator\">:<\/span> string<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">const<\/span> decodeURL <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">decodeURIComponent<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">)<\/span><br \/>\n  ext<span class=\"token punctuation\">.<\/span>value <span class=\"token operator\">&#061;<\/span> decodeURL<span class=\"token punctuation\">.<\/span><span class=\"token function\">endsWith<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;.pdf&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">?<\/span> <span class=\"token string\">&#039;pdf&#039;<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;ofd&#039;<\/span><br \/>\n  isPdf<span class=\"token punctuation\">.<\/span>value <span class=\"token operator\">&#061;<\/span> ext<span class=\"token punctuation\">.<\/span>value <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;pdf&#039;<\/span><br \/>\n  isOfd<span class=\"token punctuation\">.<\/span>value <span class=\"token operator\">&#061;<\/span> ext<span class=\"token punctuation\">.<\/span>value <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;ofd&#039;<\/span><br \/>\n  isPdf<span class=\"token punctuation\">.<\/span>value <span class=\"token operator\">?<\/span> <span class=\"token function\">loadAndRenderPdf<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">loadAndRenderOfd<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/  \u4e0b\u8f7d\u6587\u4ef6<\/span><br \/>\n<span class=\"token keyword\">const<\/span> handleDownload <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">debounce<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\"><span class=\"token literal-property property\">url<\/span><span class=\"token operator\">:<\/span> string<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">saveAs<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">,<\/span> <span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span><span class=\"token function\">fileName<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">)<\/span><span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">.<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>ext<span class=\"token punctuation\">.<\/span>value<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">300<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/  \u52a0\u8f7d\u5e76\u6e32\u67d3 PDF<\/span><br \/>\n<span class=\"token keyword\">async<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">loadAndRenderPdf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\"><span class=\"token literal-property property\">pdfUrl<\/span><span class=\"token operator\">:<\/span> string<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> canvas <span class=\"token operator\">&#061;<\/span> canvasRefs<span class=\"token punctuation\">.<\/span>value<span class=\"token punctuation\">[<\/span>pdfUrl<span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>canvas<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span><\/p>\n<p>    <span class=\"token keyword\">const<\/span> loadingTask <span class=\"token operator\">&#061;<\/span> pdfjsLib<span class=\"token punctuation\">.<\/span><span class=\"token function\">getDocument<\/span><span class=\"token punctuation\">(<\/span>pdfUrl<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> pdf <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> loadingTask<span class=\"token punctuation\">.<\/span>promise<br \/>\n    <span class=\"token keyword\">const<\/span> page <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> pdf<span class=\"token punctuation\">.<\/span><span class=\"token function\">getPage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">const<\/span> viewport <span class=\"token operator\">&#061;<\/span> page<span class=\"token punctuation\">.<\/span><span class=\"token function\">getViewport<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span> <span class=\"token literal-property property\">scale<\/span><span class=\"token operator\">:<\/span> <span class=\"token number\">1.3<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    canvas<span class=\"token punctuation\">.<\/span>height <span class=\"token operator\">&#061;<\/span> viewport<span class=\"token punctuation\">.<\/span>height<br \/>\n    canvas<span class=\"token punctuation\">.<\/span>width <span class=\"token operator\">&#061;<\/span> viewport<span class=\"token punctuation\">.<\/span>width<\/p>\n<p>    <span class=\"token keyword\">const<\/span> context <span class=\"token operator\">&#061;<\/span> canvas<span class=\"token punctuation\">.<\/span><span class=\"token function\">getContext<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;2d&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>context<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span><\/p>\n<p>    <span class=\"token keyword\">const<\/span> renderContext <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token literal-property property\">canvasContext<\/span><span class=\"token operator\">:<\/span> context<span class=\"token punctuation\">,<\/span><br \/>\n      viewport<span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">await<\/span> page<span class=\"token punctuation\">.<\/span><span class=\"token function\">render<\/span><span class=\"token punctuation\">(<\/span>renderContext<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>promise<br \/>\n  <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;PDF \u6e32\u67d3\u5931\u8d25:&#039;<\/span><span class=\"token punctuation\">,<\/span> error<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/  \u6807\u7b7e\u9875\u5207\u6362\u65f6\u52a0\u8f7d PDF<\/span><br \/>\n<span class=\"token keyword\">async<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">tabChangeHandler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\"><span class=\"token literal-property property\">key<\/span><span class=\"token operator\">:<\/span> string<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  url<span class=\"token punctuation\">.<\/span>value <span class=\"token operator\">&#061;<\/span> key<br \/>\n  activateTab<span class=\"token punctuation\">.<\/span>value <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fileName<\/span><span class=\"token punctuation\">(<\/span>key<span class=\"token punctuation\">)<\/span><\/p>\n<p>  <span class=\"token keyword\">await<\/span> <span class=\"token function\">nextTick<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u7b49\u5f85 DOM \u66f4\u65b0<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>key<span class=\"token punctuation\">.<\/span><span class=\"token function\">endsWith<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;.pdf&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">await<\/span> <span class=\"token function\">loadAndRenderPdf<\/span><span class=\"token punctuation\">(<\/span>key<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/  \u9875\u9762\u521d\u59cb\u5316\u65f6\u81ea\u52a8\u52a0\u8f7d\u7b2c\u4e00\u4e2a PDF<\/span><br \/>\n<span class=\"token function\">watch<\/span><span class=\"token punctuation\">(<\/span><br \/>\n  <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> props<span class=\"token punctuation\">.<\/span>urls<span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">newUrls<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>newUrls <span class=\"token operator\">&amp;&amp;<\/span> newUrls<span class=\"token punctuation\">.<\/span>length <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;newUrls:&#039;<\/span><span class=\"token punctuation\">,<\/span> newUrls<span class=\"token punctuation\">)<\/span><br \/>\n      url<span class=\"token punctuation\">.<\/span>value <span class=\"token operator\">&#061;<\/span> newUrls<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><br \/>\n      activateTab<span class=\"token punctuation\">.<\/span>value <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fileName<\/span><span class=\"token punctuation\">(<\/span>newUrls<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token keyword\">await<\/span> <span class=\"token function\">nextTick<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token function\">getFileType<\/span><span class=\"token punctuation\">(<\/span>newUrls<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token punctuation\">{<\/span> <span class=\"token literal-property property\">immediate<\/span><span class=\"token operator\">:<\/span> <span class=\"token boolean\">true<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>script<span class=\"token operator\">&gt;<\/span><\/p>\n<p><span class=\"token operator\">&lt;<\/span>style lang<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;less&#034;<\/span> scoped<span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token punctuation\">.<\/span>canvas <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token literal-property property\">border<\/span><span class=\"token operator\">:<\/span> 1px solid #<span class=\"token number\">000<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token literal-property property\">width<\/span><span class=\"token operator\">:<\/span> <span class=\"token number\">100<\/span><span class=\"token operator\">%<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u54cd\u5e94\u5f0f\u5bbd\u5ea6<\/span><br \/>\n  <span class=\"token literal-property property\">border<\/span><span class=\"token operator\">:<\/span> 1px solid #<span class=\"token number\">000<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">.<\/span>pdf<span class=\"token operator\">&#8211;<\/span>container <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token literal-property property\">display<\/span><span class=\"token operator\">:<\/span> flex<span class=\"token punctuation\">;<\/span><br \/>\n  flex<span class=\"token operator\">&#8211;<\/span>direction<span class=\"token operator\">:<\/span> column<span class=\"token punctuation\">;<\/span><br \/>\n  align<span class=\"token operator\">&#8211;<\/span>items<span class=\"token operator\">:<\/span> start<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token literal-property property\">gap<\/span><span class=\"token operator\">:<\/span> 12px<span class=\"token punctuation\">;<\/span><br \/>\n  max<span class=\"token operator\">&#8211;<\/span>width<span class=\"token operator\">:<\/span> <span class=\"token number\">100<\/span><span class=\"token operator\">%<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9650\u5236\u6700\u5927\u5bbd\u5ea6<\/span><br \/>\n  max<span class=\"token operator\">&#8211;<\/span>height<span class=\"token operator\">:<\/span> 400px<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token literal-property property\">overflow<\/span><span class=\"token operator\">:<\/span> auto<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>style<span class=\"token operator\">&gt;<\/span><\/p>\n<p>\u8bf4\u4e00\u4e0b\u91cd\u70b9:<\/p>\n<p>\u95ee\u9898\u4e00&#xff1a; \u901a\u8fc7\u547d\u4ee4pnpm install pdf.js\u5b89\u88c5\u540e&#xff0c;\u901a\u5e38\u51fa\u73b0\u5f15\u7528\u95ee\u9898&#xff1b;Cannot resolve pdf.worker.entry\u3002\u4ee3\u7801\u4e2d\u4f7f\u7528\u7684\u7248\u672c&#034;pdfjs-dist&#034;: &#034;^5.2.133&#034;<\/p>\n<p> <span class=\"token keyword\">import<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">as<\/span> pdfjsLib <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;pdfjs-dist&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> pdfjsWorker <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;pdfjs-dist\/build\/pdf.worker.entry&#039;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>pdfjsLib<span class=\"token punctuation\">.<\/span>GlobalWorkerOptions<span class=\"token punctuation\">.<\/span>workerSrc <span class=\"token operator\">&#061;<\/span> pdfjsWorker<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u89e3\u51b3\u65b9\u6848&#xff1a;<\/p>\n<li>\u5c06\u6587\u4ef6\u4ecenode_modules\/pdfjs-dist\/build\/pdf.worker.min.mjs\u79fb\u52a8\u81f3\u9879\u76ee\u7684public\/pdf.worker.min.mjs&#xff0c;\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4 cp node_modules\/pdfjs-dist\/build\/pdf.worker.min.mjs public\/pdf.worker.min.mjs<\/li>\n<li>\u4fee\u6539\u5f15\u7528&#xff1a;<span class=\"token keyword\">import<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">as<\/span> pdfjsLib <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;pdfjs-dist&#039;<\/span><span class=\"token punctuation\">;<\/span>\n<p>pdfjsLib<span class=\"token punctuation\">.<\/span>GlobalWorkerOptions<span class=\"token punctuation\">.<\/span>workerSrc <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;\/pdf.worker.min.mjs&#039;<\/span>\n <\/li>\n<p>ps: \u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\u5305\u542b\u4e86\u6587\u4ef6\u7684\u4e0b\u8f7d\u529f\u80fd&#xff0c;\u9700\u8981\u5b89\u88c5 &#034;file-saver&#034;: &#034;^2.0.5&#034;,<\/p>\n<\/li>\n<\/li>\n<li>\n<p>ofd\u7684\u9884\u89c8<\/p>\n<p>\u5b9e\u73b0\u65b9\u5f0f&#xff1a;easyofd \u5b89\u88c5\u7684\u4f9d\u8d56&#xff1a;pnpm -i jszip x2js jb2 opentype.js easyofd \u4e1a\u52a1\u5b9e\u73b0&#xff1a;<\/p>\n<p> <span class=\"token operator\">&lt;<\/span>template<span class=\"token operator\">&gt;<\/span><br \/>\n  <span class=\"token operator\">&lt;<\/span>div ref<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;containerRef&#034;<\/span> style<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;width: 100%; height: 800px;&#034;<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/p>\n<p><span class=\"token operator\">&lt;<\/span>script setup<span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> EasyOFD <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#034;easyofd&#034;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> ref<span class=\"token punctuation\">,<\/span> onMounted <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;vue&#039;<\/span><\/p>\n<p><span class=\"token keyword\">const<\/span> containerRef <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">ref<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token function\">onMounted<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>containerRef<span class=\"token punctuation\">.<\/span>value<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;OFD \u5bb9\u5668\u4e0d\u5b58\u5728&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token keyword\">const<\/span> ofd <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">EasyOFD<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;myOFD&#039;<\/span><span class=\"token punctuation\">,<\/span> containerRef<span class=\"token punctuation\">.<\/span>value<span class=\"token punctuation\">)<\/span><\/p>\n<p>  <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> response <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> <span class=\"token function\">fetch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/files\/sample.ofd&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> blob <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">blob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    ofd<span class=\"token punctuation\">.<\/span><span class=\"token function\">loadFromBlob<\/span><span class=\"token punctuation\">(<\/span>blob<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;OFD \u52a0\u8f7d\u5931\u8d25:&#039;<\/span><span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>script<span class=\"token operator\">&gt;<\/span><\/p>\n<p><span class=\"token operator\">&lt;<\/span>style lang<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;less&#034;<\/span> scoped<span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u9690\u85cf\u53f3\u4fa7\u7684ppi\u6a21\u5757&#xff0c;\u51cf\u5c11\u7a7a\u767d<\/span><br \/>\n<span class=\"token operator\">:<\/span><span class=\"token function\">deep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">#myOFD<span class=\"token operator\">&#8211;<\/span>ppi<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token literal-property property\">display<\/span><span class=\"token operator\">:<\/span> none<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/ \u589e\u52a0\u8fb9\u6846<\/span><br \/>\n<span class=\"token operator\">:<\/span><span class=\"token function\">deep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">#myOFD<span class=\"token operator\">&#8211;<\/span>ofd<span class=\"token operator\">&#8211;<\/span>canvas<\/span><span class=\"token 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