在vue-element-admin中导入excel的基础上，利用el-tabs + el-table显示所有sheet表格数据。只能显示简单的数据格式，不能显示合并的单元格。先记一下；留着自己之后看。
component组件
<template>
<div>
<input ref="excel-upload-input" class="excel-upload-input" type="file" accept=".xlsx, .xls" @change="handleClick">
<el-button :loading="loading" style="margin-left:16px;" size="mini" type="primary" @click="handleUpload">
导入文件
</el-button>
</div>
</template>
<script>
import XLSX from 'xlsx'
export default {
props: {
beforeUpload: Function, // eslint-disable-line
onSuccess: Function// eslint-disable-line
},
data() {
return {
loading: false,
editableTabs: []
}
},
methods: {
handleDrop(e) {
e.stopPropagation()
e.preventDefault()
if (this.loading) return
const files = e.dataTransfer.files
if (files.length !== 1) {
this.$message.error('Only support uploading one file!')
return
}
const rawFile = files[0] // only use files[0]
if (!this.isExcel(rawFile)) {
this.$message.error('Only supports upload .xlsx, .xls, .csv suffix files')
return false
}
this.upload(rawFile)
e.stopPropagation()
e.preventDefault()
},
handleDragover(e) {
e.stopPropagation()
e.preventDefault()
e.dataTransfer.dropEffect = 'copy'
},
handleUpload() {
this.$refs['excel-upload-input'].click()
},
handleClick(e) {
const files = e.target.files
const rawFile = files[0] // only use files[0]
if (!rawFile) return
this.upload(rawFile)
},
upload(rawFile) {
this.editableTabs = []
this.$refs['excel-upload-input'].value = null // fix can't select the same excel
if (!this.beforeUpload) {
this.readerData(rawFile)
return
}
const before = this.beforeUpload(rawFile)
if (before) {
this.readerData(rawFile)
}
},
readerData(rawFile) {
this.loading = true
return new Promise((resolve, reject) => {
const reader = new FileReader()
reader.onload = e => {
const data = e.target.result
const workbook = XLSX.read(data, { type: 'array' })
console.log("workbook", workbook)
// 循环获取sheets中的数据
for (let i = 0, length = workbook.SheetNames.length; i < length; i++) {
let sheetName = workbook.SheetNames[i]
let worksheet = workbook.Sheets[sheetName]
let header = this.getHeaderRow(worksheet)
let results = XLSX.utils.sheet_to_json(worksheet)
this.editableTabs.push({
title: sheetName,
name: i + '',
header: header,
results: results,
})
}
console.log(" editableTabs", this.editableTabs)
this.onSuccess && this.onSuccess(this.editableTabs)
this.loading = false
resolve()
}
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
},
isExcel(file) {
return /\.(xlsx|xls|csv)$/.test(file.name)
}
}
}
</script>
<style scoped>
.excel-upload-input {
display: none;
z-index: -9999;
}
</style>
.vue文件
<template>
<div class="app-container">
<upload-excel-component :on-success="handleSuccess" :before-upload="beforeUpload" />
<el-tabs type="border-card" v-model="activeName" style="margin-top:20px">
<el-tab-pane :key="item.name" v-for="item in editableTabs" :label="item.title" :name="item.name">
<el-table :data="item.results" border highlight-current-row style="width: 100%;margin-top:20px;">
<el-table-column v-for="column of item.header" :key="column" :prop="column" :label="column" />
</el-table>
</el-tab-pane>
</el-tabs>
</div>
</template>
<script>
import UploadExcelComponent from '@/components/UploadExcelSheets/index.vue'
export default {
name: 'UploadExcel',
components: { UploadExcelComponent },
data() {
return {
editableTabs: [],
activeName: '0',
}
},
methods: {
beforeUpload(file) {
const isLt1M = file.size / 1024 / 1024 < 1
if (isLt1M) {
return true
}
this.$message({
message: 'Please do not upload files larger than 1m in size.',
type: 'warning'
})
return false
},
handleSuccess(list) {
this.editableTabs = list;
}
}
}
</script>
效果
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