依赖
npm install xlsx
dom
<template>
<div class='test_container'>
<el-card>
<input
type="file"
ref="input1"
accept=".png,.jpg"
@change='handleChange'>
<input
type="file"
ref="input2"
accept=".xlsx, .xls"
@change='handleChange'>
<el-button @click="upload(0)">上传图片</el-button>
<el-button @click="upload(1)" :loading='loading'>上传excel</el-button>
<div class="show">
<p>图片展示区域</p>
<img width="200" :src="src" alt="">
<p>上传的excel展示区域</p>
<el-table
:data="result"
style="width: 100%"
border
stripe
id="table"
ref="table"
v-show="result.length > 0">
<el-table-column
v-for="item in header"
:key="item"
:prop="item"
:label="item">
</el-table-column>
</el-table>
</div>
</el-card>
</div>
</template>
js
<script>
import * as XLSX from 'xlsx'
export default {
name: 'test',
data () {
return {
src: '',
uploadLimit: 1,
loading: false,
result: [],
header: []
}
},
created () {
console.log(XLSX)
},
methods: {
upload (val) {
if (val === 0) {
this.$refs.input1.click()
return
}
this.$refs.input2.click()
},
handleChange (e) {
const files = e.target.files[0]
// 判断类型
const fileType = this.judgeType(files)
if (fileType === 'isImage') {
// 处理图片文件
this.handleImage(files)
} else if (fileType === 'isExcel') {
// 处理excel文件资源
this.handleExecl(files)
}
},
judgeType (file) {
const imageReg = /\.(png|jpg)$/
const excelReg = /\.(xlsx|xls|csv)$/
if (imageReg.test(file.name)) return 'isImage'
if (excelReg.test(file.name)) return 'isExcel'
throw new Error('file type is not image/excel!')
},
handleImage (file) {
// 判断上传大小
if (!this.beforeUpload(file.size)) return
const form = new FormData()
form.append('file',file)
// 将form传到后端
this.src = URL.createObjectURL(file)
},
handleExecl (file) {
console.log(file)
// 判断上传大小
if (!this.beforeUpload(file.size)) return
this.readerData(file)
},
beforeUpload (size) {
const mb = size / 1024/ 1024
const isLimit = mb < 1
if (isLimit) {
return true
}
this.$message.warning(`Please do not up upload larger than ${this.uploadLimit} M`)
return false
},
readerData (rawFile) {
this.loading = true
// 处理并获取数据
const reader = new FileReader() // 读取文本文件
// 加载完后触发
reader.onload = e => {
const data = e.target.result
const workbook = XLSX.read(data, { type: 'array' })
const firstSheetName = workbook.SheetNames[0]
const worksheet = workbook.Sheets[firstSheetName]
this.header = this.getHeaderRow(worksheet) // 获取表头 ['id', 'title', 'name', 'age']
/**
* result:
* [
* {id: 1, title: 2, name: 3, age: 4, __rowNum__: 1}
* ]
*/
this.result = XLSX.utils.sheet_to_json(worksheet)
this.loading = true
}
reader.readAsArrayBuffer(rawFile)
},
getHeaderRow(sheet) {
const headers = []
const range = XLSX.utils.decode_range(sheet['!ref'])
let C
const R = range.s.r
/* start in the first row */
for (C = range.s.c; C <= range.e.c; ++C) { /* walk every column in the range */
const cell = sheet[XLSX.utils.encode_cell({ c: C, r: R })]
/* find the cell in the first row */
let hdr = 'UNKNOWN ' + C // <-- replace with your desired default
if (cell && cell.t) hdr = XLSX.utils.format_cell(cell)
headers.push(hdr)
}
return headers
}
}
}
</script>