How to use Vue and Excel to quickly generate visual data reports
Jul 21, 2023 pm 04:51 PM
How to use Vue and Excel to quickly generate visual data reports
With the advent of the big data era, data reports have become an indispensable part of corporate decision-making. However, the traditional way of producing data reports is cumbersome and inefficient. Therefore, we need a more convenient method to generate visual data reports. This article will introduce how to use the Vue framework and Excel tables to quickly generate visual data reports, and attach corresponding code examples.
First, we need to create a Vue-based project. You can use Vue CLI to build the project. Enter the following command to install Vue CLI and create a new project:
npm install -g @vue/cli vue create data-report
After the installation is complete, enter the project folder and start the development server:
cd data-report npm run serve
Next, We need to use Excel tables to store and manage data. You can use the JavaScript-based library SheetJS to operate Excel files, convert Excel data into JSON format, and then use Vue's data binding function to display the data.
First, install the SheetJS library:
npm install xlsx
In the Vue component, import the SheetJS library and create a variable in dataexcelData for Store Excel data. Read Excel data in the mounted life cycle hook, convert it into JSON format and store it in excelData:
<script>
import * as XLSX from 'xlsx'
export default {
data() {
return {
excelData: []
}
},
mounted() {
this.loadExcelData()
},
methods: {
loadExcelData() {
const workbook = XLSX.readFile('data.xlsx')
const sheetName = workbook.SheetNames[0]
const worksheet = workbook.Sheets[sheetName]
const jsonData = XLSX.utils.sheet_to_json(worksheet, { header: 1 })
this.excelData = jsonData.slice(1)
}
}
}
</script>Next, we can start using Vue Data binding and calculated properties to display and manipulate Excel data. For example, we can use the v-for directive in the component's template to traverse excelData and display the table:
<template>
<div>
<table>
<thead>
<tr>
<th v-for="(column, index) in excelData[0]" :key="index">{{ column }}</th>
</tr>
</thead>
<tbody>
<tr v-for="(row, rowIndex) in excelData" :key="rowIndex">
<td v-for="(column, columnIndex) in row" :key="columnIndex">{{ column }}</td>
</tr>
</tbody>
</table>
</div>
</template>Through the above code, we successfully converted the Excel data to Displayed in tabular form. Next, we can use other Vue plug-ins such as Chart.js to display the data in the form of charts. Install Chart.js and Vue Chart.js plug-in:
npm install chart.js vue-chartjs
In the Vue component, import Chart.js and Vue Chart.js plug-in, and create a subclass that inherits from the Vue Chart.js plug-in for Draw diagrams. Through calculated properties, we can convert Excel data into the format required by Chart.js, and use custom chart components to display the data in the template:
<script>
import { Line } from 'vue-chartjs'
export default {
extends: Line,
data() {
return {
chartData: {}
}
},
mounted() {
this.loadChartData()
},
methods: {
loadChartData() {
// 數(shù)據(jù)轉(zhuǎn)換代碼
}
},
computed: {
chartOptions() {
// 圖表選項(xiàng)代碼
}
},
watch: {
excelData(value) {
this.loadChartData()
}
}
}
</script>With the above code, we can convert Excel data into Chart.js requires the format and plots the chart. By monitoring changes in excelData, when Excel data changes, the chart will automatically update.
Use custom chart components in templates:
<template>
<div>
<line-chart :data="chartData" :options="chartOptions"></line-chart>
</div>
</template>Through the above steps, we successfully used Vue and Excel to quickly generate visual data reports. By converting Excel data into JSON format and taking advantage of Vue's data binding and calculated property functions, we can easily display and manipulate data. By using other Vue plug-ins such as Chart.js, we can display data in the form of charts, making data reports more intuitive and easy to understand.
I hope this article is helpful to you, and I wish you happy programming!
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