最近项目需求需要在vue中展示pdf,上网搜索了实现方法,找到vue-pdf这个插件非常好用,并且还有许多方法、属性能进行功能扩展。
一、安装
npm install --save vue-pdf
二、基本示例
<template> <div class="pdf"> <pdf ref="pdf" :src="pdfUrl"> </pdf> </div> </template> <script> import pdf from 'vue-pdf' export default { name: 'Pdf', components:{ pdf }, data(){ return { pdfUrl:"http://file.dakawengu.com/file/2018-05-29/20180527-tianfeng.pdf", } } </script>
只需在组件的src属性传入pdf的链接就能显示相应的pdf文件。
三、API
Props属性
:srcString/Object
pdf的链接,可以是相对、绝对地址或者是一个pdf的加载任务(后面会讲到);
:pageNumber-default:1
需要展示pdf的第几页;
:rotateNumber-default:0
pdf的旋转角度,‘90’的倍数才有效;
Events回调
@password(updatePassword,reason)
updatePassword:函数提示需要输入的密码;
reason:提示('NEED_PASSWORD' or 'INCORRECT_PASSWORD');
@progressNumber
pdf的页面的加载进度,Rang[0,1];
@page-loadedNumber
pdf某个页面加载成功回调,number为页面索引值;
@num-pagesNumber
监听pdf加载,获取pdf的页数;
@errorObject
pdf加载失败回调;
@link-clickedNumber
单机内部链接时触发;
Public methods公共方法
print(dpi,pageList)
调用浏览器打印功能;
- dpi打印的分辨率(100)
- pageList需要打印的页面array
Public static methods静态方法
createLoadingTask(src)
这个方法创建一个当前pdf的加载任务,可以作为:src使用或者公开的获取当前pdf的页面总数;
四、应用
单页pdf展示及api使用
可以进行页数切换、pdf旋转、部分打印、全部打印、显示加密pdf功能;
监听当前页面加载,加载进度;
<template> <div class="pdf"> <div class="pdf-tab"> <div class="btn-def btn-pre" @click.stop="prePage">上一页</div> <div class="btn-def btn-next" @click.stop="nextPage">下一页</div> <div class="btn-def" @click.stop="clock">顺时针</div> <div class="btn-def" @click.stop="counterClock">逆时针</div> <div class="btn-def" @click.stop="pdfPrintAll">全部打印</div> <div class="btn-def" @click.stop="pdfPrint">部分打印</div> </div> <div>{{pageNum}}/{{pageTotalNum}}</div> <div>进度:{{loadedRatio}}</div> <div>页面加载成功: {{curPageNum}}</div> <pdf ref="pdf" :src="pdfUrl" :page="pageNum" :rotate="pageRotate" @password="password" @progress="loadedRatio = $event" @page-loaded="pageLoaded($event)" @num-pages="pageTotalNum=$event" @error="pdfError($event)" @link-clicked="page = $event"> </pdf> </div> </template> <script> import pdf from 'vue-pdf' export default { name: 'Pdf', components:{ pdf }, data(){ return { pdfUrl:"http://file.dakawengu.com/file/2018-05-29/20180527-tianfeng.pdf", pageNum:1, pageTotalNum:1, pageRotate:0, // 加载进度 loadedRatio:0, curPageNum:0, } }, mounted: function() { }, methods: { prePage(){ var p = this.pageNum p = p>1?p-1:this.pageTotalNum this.pageNum = p }, nextPage(){ var p = this.pageNum p = p<this.pageTotalNum?p+1:1 this.pageNum = p }, clock(){ this.pageRotate += 90 }, counterClock(){ this.pageRotate -= 90 }, password(updatePassword, reason) { updatePassword(prompt('password is "123456"')) console.log('...reason...') console.log(reason) console.log('...reason...') }, pageLoaded(e){ this.curPageNum = e }, pdfError(error){ console.error(error) }, pdfPrintAll(){ this.$refs.pdf.print() }, pdfPrint(){ this.$refs.pdf.print(100,[1,2]) }, } } </script>
效果如下图:
展示全部pdf
上面的示例只能显示单页的pdf,并且pdf的总页数也只能在pdf加载完成后才能获取。下面介绍createLoadingTask的用法,来显示所有pdf。
<template> <div class="pdf"> <div class="pdf-tab"> <div :class="['btn-def',{'btn-active':activeIndex==index}]" v-for="(item,index) in pdfList" @click.stop="pdfClick(item.pdfUrl,index)">{{item.title}}</div> </div> <pdf v-for="i in numPages" :key="i" :src="pdfUrl" :page="i"> </pdf> </div> </template> <script> import pdf from 'vue-pdf' export default { name: 'Pdf', components:{ pdf }, data(){ return { pdfList:[ { pdfUrl:"https://dakaname.oss-cn-hangzhou.aliyuncs.com/file/2018-12-29/1546049718768.pdf", title:"你好,2019年" }, { pdfUrl:"http://file.gp58.com/file/2018-11-14/111405.pdf", title:"中信证券观点" }, { pdfUrl:"https://dakaname.oss-cn-hangzhou.aliyuncs.com/file/2018-12-28/1546003237411.pdf", title:"12月投资月刊" }, { pdfUrl:"https://dakaname.oss-cn-hangzhou.aliyuncs.com/file/2018-12-28/1546003282521.pdf", title:"丰岭资本观点" }, ], pdfUrl: '', numPages:1, activeIndex:0, } }, mounted: function() { this.pdfTask(this.pdfList[0].pdfUrl) }, methods: { pdfTask(pdfUrl){ var self = this var loadingTask = pdf.createLoadingTask(pdfUrl) loadingTask.then(pdf => { self.pdfUrl = loadingTask self.numPages = pdf.numPages }).catch((err) => { console.error('pdf加载失败') }) }, pdfClick(pdfUrl,index){ if(index == this.activeIndex)return this.activeIndex = index this.pdfUrl = null this.pdfTask(pdfUrl) }, } } </script>
效果如下图:
转自 https://blog.csdn.net/weixin_30564785/article/details/94805952