vue预览本地pdf文件方法之vue-pdf组件使用

npm install --save vue-pdf

<div class="pdf" v-show="fileType === 'pdf'">
<p class="arrow">
    <span @click="changePdfPage(0)" class="turn" 
             :class="{grey: currentPage==1}">Preview</span>
    {{currentPage}} / {{pageCount}}
    <span @click="changePdfPage(1)" class="turn" 
            :class="{grey: currentPage==pageCount}">Next</span>
</p>                              
<pdf  :src="pdfSrc" :page="currentPage" @num-pages="pageCount=$event" 
        @page-loaded="currentPage=$event"   @loaded="loadPdfHandler">
</pdf>
</div>

// 改变PDF页码,val传过来区分上一页下一页的值,0上一页,1下一页
      changePdfPage (val) {
        // console.log(val)
        if (val === 0 && this.currentPage > 1) {
          this.currentPage--
          // console.log(this.currentPage)
        }
        if (val === 1 && this.currentPage < this.pageCount) {
          this.currentPage++
          // console.log(this.currentPage)
        }
      },
 
      // pdf加载时
      loadPdfHandler (e) {
        this.currentPage = 1 // 加载的时候先加载第一页
      },

<template>
    <div>
        <div style="text-align: left;">
        <H2>行业资料</H2>
        <el-divider>
        </el-divider>
        <el-container>
            <el-aside width="300px" style="border: 1px solid #eee;height: 1000px; background-color: #D3DCE6;">
                <div class="myTree">
                <el-tree default-expand-all :props="defaultProps" :data="tableData"  @node-click="handleNodeClick"></el-tree>
                </div>
            </el-aside>
            <el-container  style="border: 1px solid #eee;margin-left: 10px;">
                <div class="pdf" v-show="fileType === 'pdf'">
                    <p class="arrow">
                        <span :class="{grey: currentPage==1}" @click="changePdfPage(0)" class="turn">Preview</span>
                        {{currentPage}} / {{pageCount}}
                        <span :class="{grey: currentPage==pageCount}" @click="changePdfPage(1)" class="turn">Next</span>
                    </p>
                    <pdf
                            :page="currentPage"
                            :src="pdfSrc"
                            @loaded="loadPdfHandler"
                            @num-pages="pageCount=$event"
                            @page-loaded="currentPage=$event">
                    </pdf>
                </div>
            </el-container>
        </el-container>
        </div>
    </div>
</template>

<script>
  import pdf from 'vue-pdf'
 
  export default {
    name: "IndustryInformation",
    components: {pdf},
    data(){
      return {
        currentPage: 0, // pdf文件页码
        pageCount: 0, // pdf文件总页数
        fileType: 'pdf', // 文件类型
        pdfSrc: '',  // pdf文件地址
        defaultProps: {
          children: 'children',
          label: 'name'
        },
 
        tableData: [{
          id: 1,
          name: '道路工程资料',
          children:[
            {
              id: 2,
              name: '公路工程资料编制概述',
              children:[
                {
                  id: 21,
                  name: '路面工程部分分项划分表',
                  src: '/1.pdf',
                },
                {
                  id: 13,
                  name: '一般建设项目单位工程划分表',
                  src: '/2.pdf',
                },
                {
                  id: 14,
                  name: '路基工程部分分项划分表',
                  src: '/3.pdf',
                },
                {
                  id: 33,
                  name: '桥梁工程部分分项划分表',
                  src: '/4.pdf',
                },
                {
                  id: 34,
                  name: '隧道工程部分分项划分表',
                  src: '/5.pdf',
                }
              ]
            },
            {
              id: 3,
              name: '公路工程竣工资料',
              children:[
                {
                  id: 7,
                  name: '公路工程竣工文件编排层次',
                  src: '/5.pdf',
                },
                {
                  id: 8,
                  name: '工程洽商记录表',
                  src: '/4.pdf',
                },
                {
                  id: 9,
                  name: '工程设计表更、洽商一览表',
                  src: '/3.pdf',
                }
              ]
            }
          ]}]
      }
    },
    methods:{
      // 改变PDF页码,val传过来区分上一页下一页的值,0上一页,1下一页
      changePdfPage(val) {
        // console.log(val)
        if (val === 0 && this.currentPage > 1) {
          this.currentPage--
          // console.log(this.currentPage)
        }
        if (val === 1 && this.currentPage < this.pageCount) {
          this.currentPage++
          // console.log(this.currentPage)
        }
      },
 
      // pdf加载时
      loadPdfHandler(e) {
        this.currentPage = 1 // 加载的时候先加载第一页
      },
 
      handleNodeClick(data) {
        this.pdfSrc = data.src;
      }
 
    }
  }
</script>

<style scoped>
    .myTree /deep/ .el-tree {
        position: relative;
        cursor: default;
        color: #606266;
        background-color: #D3DCE6;
    }
</style>