如何在vue项目里面展示 pdf文件
首先下载 pdfjs-dist 这个插件 注意版本 "pdfjs-dist": "^2.4.456" 一定要这个版本 要不然会报错
在然后在 component 里面添加一个 空白的.vue文件
复制下面的代码
注意:url 是在public 里面的 静态资源
访问 public 里面的 资源 不需要跨域
<template> <div class="canvas-container"> <canvas v-for="page in pages" :id="'the-canvas'+page" :key="page"> </canvas> </div> </template> <script> import PDFJS from 'pdfjs-dist'; import workerSrc from 'pdfjs-dist/build/pdf.worker.entry' PDFJS.workerSrc = workerSrc; export default { name: 'Pdf', data() { return { pages: [] }; }, // props:{ // str:String, // }, created() { let url = "/report.pdf" this._loadFile(url); }, methods: { _renderPage (num) { this.pdfDoc.getPage(num).then((page) => { let canvas = document.getElementById('the-canvas' + num) var vp = page.getViewport({scale: 1}); let ctx = canvas.getContext('2d') let dpr = window.devicePixelRatio || 1 let bsr = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1 let ratio = dpr / bsr let viewport = page.getViewport({scale: window.innerWidth / vp.width}); canvas.width = viewport.width * ratio canvas.height = viewport.height * ratio canvas.style.width = viewport.width + 'px' ctx.setTransform(ratio, 0, 0, ratio, 0, 0) let renderContext = { canvasContext: ctx, viewport: viewport } page.render(renderContext) if (this.pages > num) { this._renderPage(num + 1) } }) }, _loadFile (url) { PDFJS.getDocument(url).promise.then((pdf) => { this.pdfDoc = pdf this.pages = this.pdfDoc.numPages this.$nextTick(() => { this._renderPage(1); }); }); } } }; </script> <style lang="scss" scoped> .canvas-container{ margin: 0 auto; canvas{ height: 100vh; } } </style>