vue修改excel数据后再导出
要修改Excel数据并导出,您需要使用以下步骤:
- 将Excel文件导入Vue组件中。您可以使用第三方库如
xlsx或file-saver来实现这一点。例如,使用xlsx库:
import * as XLSX from 'xlsx';
export default {
data() {
return {
workbook: null,
sheetName: null
}
},
methods: {
handleFileUpload(e) {
const file = e.target.files[0];
const reader = new FileReader();
reader.onload = (evt) => {
const data = evt.target.result;
this.workbook = XLSX.read(data, {type: 'binary'});
this.sheetName = this.workbook.SheetNames[0];
};
reader.readAsBinaryString(file);
}
}
}
- 将Excel表格渲染到页面上。您可以使用
vue-xlsx-table或手动渲染表格。例如,手动渲染:
<template>
<table>
<thead>
<tr>
<th v-for="col in columns" :key="col">{{ col }}</th>
</tr>
</thead>
<tbody>
<tr v-for="(row, index) in rows" :key="index">
<td v-for="(cell, j) in row" :key="'cell' + j">{{ cell }}</td>
</tr>
</tbody>
</table>
</template>
<script>
export default {
props: ['sheetData'],
computed: {
columns() {
if (!this.sheetData) return [];
const firstRow = Object.keys(this.sheetData[0]);
return firstRow;
},
rows() {
if (!this.sheetData) return [];
return this.sheetData.map(row => Object.values(row));
}
}
}
</script>
- 使表格可编辑。您可以使用
vue2-handsontable或手动实现编辑。例如,手动实现:
<template>
<table>
<thead>
<tr>
<th v-for="col in columns" :key="col">{{ col }}</th>
</tr>
</thead>
<tbody>
<tr v-for="(row, index) in rows" :key="index">
<td v-for="(cell, j) in row" :key="'cell' + j" @input="updateCell(index, j, $event.target.value)" :contenteditable="true">{{ cell }}</td>
</tr>
</tbody>
</table>
</template>
<script>
export default {
props: ['sheetData'],
methods: {
updateCell(rowIndex, colIndex, value) {
this.sheetData[rowIndex][Object.keys(this.sheetData[rowIndex])[colIndex]] = value;
}
}
}
</script>
- 导出修改后的数据。您可以使用以下代码将修改后的数据导出为Excel文件:
import * as XLSX from 'xlsx';
import { saveAs } from 'file-saver';
export default {
props: ['workbook', 'sheetName', 'sheetData'],
methods: {
exportExcel() {
const sheet = XLSX.utils.json_to_sheet(this.sheetData);
this.workbook.Sheets[this.sheetName] = sheet;
const wbout = XLSX.write(this.workbook, { bookType: 'xlsx', type: 'binary' });
saveAs(new Blob([this.s2ab(wbout)], { type: 'application/octet-stream' }), 'modified_data.xlsx');
},
s2ab(s) {
const buf = new ArrayBuffer(s.length);
const view = new Uint8Array(buf);
for (let i = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
return buf;
}
}
}
将该方法绑定到“导出”按钮或其他事件,并传递当前的工作簿、表格名称和修改后的数据
原文地址: https://www.cveoy.top/t/topic/hbVO 著作权归作者所有。请勿转载和采集!