Intelligent splicing of Vue and Excel: How to realize automatic modification and export of data

Intelligent splicing of Vue and Excel: How to realize automatic modification and export of data

Introduction:
In work and study, we often need to process a large amount of data, and Excel, as a powerful Spreadsheet software has become one of our most commonly used tools. Now, with the rapid development of front-end technology, we can use the powerful functions of the Vue framework to intelligently splice with Excel to realize automatic modification and export of data, which greatly improves the efficiency of work and learning. This article will introduce how to use Vue and Excel to automatically modify and export data.

1. How to use Vue to obtain and modify Excel data
In Vue, you can read and modify Excel files through the vue-xlsx plug-in. First, we need to install the vue-xlsx plug-in through npm:

npm install vue-xlsx --save

Then introduce and register vue-xlsx in main.js:

import VueXlsx from 'vue-xlsx'
Vue.use(VueXlsx)

Next, we can use # in the Vue component ##Component to read Excel files and bind the data to Vue's data. For example, we have an Excel file named "excelData.xlsx", which contains a worksheet named "Sheet1". We can read the data like this:

<template>
  <div>
    <xlsx-read file="excelData.xlsx" sheet="Sheet1" v-model="excelData"></xlsx-read>
  </div>
</template>

<script>
export default {
  data() {
    return {
      excelData: []
    }
  }
}
</script>

At this time,

excelData will be bound to a two-dimensional array, where each row represents a row of data in the Excel table. You can display the data or perform other operations by traversing excelData.

If we want to modify the data in the Excel file and update it to the page in real time, we can use the

component. For example, we have a button that, when clicked, will write "Hello World" to the first row and column of the Excel file:

<template>
  <div>
    <xlsx-write file="excelData.xlsx" sheet="Sheet1" :data="excelData">
      <button @click="updateData">修改数据</button>
    </xlsx-write>
  </div>
</template>

<script>
export default {
  data() {
    return {
      excelData: []
    }
  },
  methods: {
    updateData() {
      this.excelData[0][0] = "Hello World"
    }
  }
}
</script>

In the above code, clicking the button triggers

updateData method, you can modify the data to "Hello World" and automatically update it to the Excel file.

2. How to use Vue to export Excel files

In addition to reading and modifying Excel data, we can also use Vue to export Excel files. In Vue, we can use the xlsx-style plug-in to implement the export function. First, you need to install the xlsx-style plug-in through npm:

npm install xlsx-style --save

Then introduce the following code in main.js:

import 'xlsx-style'
import FileSaver from 'file-saver'
Object.defineProperty(Vue.prototype, '$fileSaver', { value: FileSaver })

In the Vue component, we can use the following code to export the Excel file:

<template>
  <div>
    <button @click="exportData">导出数据</button>
  </div>
</template>

<script>
export default {
  methods: {
    exportData() {
      const ws_name = "Sheet1"
      const wb = XLSX.utils.book_new()
      const ws_data = this.excelData
      const ws = XLSX.utils.aoa_to_sheet(ws_data)

      /* 添加表格样式 */
      const cellStyles = {
        'font': { 'bold': true },
        'fill': { 'fgColor': { 'rgb': "FFFF0000" } },
        'alignment': { 'horizontal': "center" }
      }
      ws['A1'].s = cellStyles

      XLSX.utils.book_append_sheet(wb, ws, ws_name)
      XLSX.writeFile(wb, '导出数据.xlsx')
    }
  }
}
</script>

In the above code, by clicking the button to trigger the

exportData method, excelData can be exported to an Excel file named "Export Data.xlsx". In addition, by setting the cellStyles object, we can also customize the exported table style.

Conclusion:

Through the intelligent splicing of Vue and Excel, we can realize automatic modification and export of data, which greatly improves the efficiency of work and study. I hope this article can help you make better use of front-end technology to process data.

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