How to associate and filter table data through Vue and Excel
Introduction:
With the growing demand for data analysis and processing, Excel tables have become the most commonly used data processing in all walks of life. One of the tools. Modern data processing requirements require us to combine Excel tables with other front-end frameworks to achieve more flexible and efficient data association and filtering functions. This article will introduce how to associate and filter tabular data through Vue and Excel.
1. Preparation
Before starting, we need to install and configure the following tools and libraries:
npm install vue
npm install exceljs
npm install xlsx
2. Implement logic
Next, we will implement the association and filtering functions of table data through the following steps.
<template> <div> <input type="file" @change="importExcel" accept=".xlsx,.xls" /> <button @click="filterData">筛选</button> </div> </template> <script> import { writeFile } from 'xlsx'; export default { methods: { importExcel(event) { const files = event.target.files; const reader = new FileReader(); reader.onload = (e) => { const data = new Uint8Array(e.target.result); const workbook = XLSX.read(data, { type: 'array' }); const worksheet = workbook.Sheets[workbook.SheetNames[0]]; const jsonData = XLSX.utils.sheet_to_json(worksheet, { header: 1 }); // 存储Excel数据 this.excelData = jsonData; }; reader.readAsArrayBuffer(files[0]); }, filterData() { // 根据筛选条件过滤数据 // ... }, }, }; </script>
In the above code, we use the importExcel
method to convert the imported Excel file into JSON data and store it in the Vue component's excelData
in properties.
<template> <div> <input type="file" @change="importExcel" accept=".xlsx,.xls" /> <button @click="filterData">筛选</button> <input v-model="filterValue" placeholder="请输入筛选条件" /> <button @click="applyFilter">确认</button> <table> <thead> <tr> <th v-for="(header, index) in excelData[0]" :key="index">{{ header }}</th> </tr> </thead> <tbody> <tr v-for="(row, index) in filteredData" :key="index"> <td v-for="(cell, index) in row" :key="index">{{ cell }}</td> </tr> </tbody> </table> </div> </template> <script> export default { data() { return { excelData: [], filteredData: [], filterValue: '', }; }, methods: { importExcel(event) { // ... }, filterData() { // ... }, applyFilter() { // 根据筛选条件过滤数据 this.filteredData = this.excelData.filter((row) => { return row.some((cell) => { return cell.toString().includes(this.filterValue); }); }); }, }, }; </script>
In the above code, we added an input box and confirmation button. The user can enter the filter conditions in the input box, and then click the confirmation button to trigger the applyFilter
method. The applyFilter
method filters data based on filter conditions by traversing the excelData
array, and stores the results in the filteredData
attribute.
Summary:
Through the above steps, we successfully implemented the association and filtering functions of table data through Vue and Excel. By importing Excel files and filtering functions, we can process and analyze large amounts of data more flexibly and efficiently. Hope this article helps you!
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