How to use Vue and Excel to automatically filter and export data

How to use Vue and Excel to automatically filter and export data

With the advent of the Internet and big data era, data analysis and export have become an important task. As a common data processing tool, Excel is widely used. This article will introduce how to use Vue and Excel to realize automatic filtering and export of data, and attach code examples. Hope it can be helpful to readers.

First, we need to introduce the related libraries of Vue and Excel. In a Vue project, you can use npm or yarn to install these libraries. The specific operations are as follows:

// 安装vue和vue-router库
npm install vue
npm install vue-router

// 安装exceljs库
npm install exceljs

After the installation is completed, introduce these libraries into the Vue entry file (usually main.js):

import Vue from 'vue'
import VueRouter from 'vue-router'
import ExcelJS from 'exceljs'

Vue.use(VueRouter)

Vue.prototype.$ExcelJS = ExcelJS

Next, we need to create a page to display the data , and implement data filtering and export functions. You can create a new component named DataExport.vue and implement related functions in this component. First, we need to add a table for displaying data to the template:

<template>
  <div>
    <table>
      <thead>
        <tr>
          <th>姓名</th>
          <th>性别</th>
          <th>年龄</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="item in filteredData" :key="item.id">
          <td>{{ item.name }}</td>
          <td>{{ item.sex }}</td>
          <td>{{ item.age }}</td>
        </tr>
      </tbody>
    </table>
    <button @click="exportData">导出数据</button>
  </div>
</template>

Then, in the Script part, we need to define the data and filtering methods:

<script>
export default {
  data() {
    return {
      data: [
        { id: 1, name: '张三', sex: '男', age: 25 },
        { id: 2, name: '李四', sex: '女', age: 30 },
        { id: 3, name: '王五', sex: '男', age: 28 },
        // 此处省略其他数据
      ],
      filter: {
        name: '',
        sex: '',
        age: ''
      }
    }
  },
  computed: {
    filteredData() {
      let filteredData = this.data

      if (this.filter.name) {
        filteredData = filteredData.filter(item => item.name.includes(this.filter.name))
      }

      if (this.filter.sex) {
        filteredData = filteredData.filter(item => item.sex === this.filter.sex)
      }

      if (this.filter.age) {
        filteredData = filteredData.filter(item => item.age === parseInt(this.filter.age))
      }

      return filteredData
    }
  },
  methods: {
    exportData() {
      const workbook = new this.$ExcelJS.Workbook()
      const worksheet = workbook.addWorksheet('数据')

      // 添加表头
      worksheet.addRow(['姓名', '性别', '年龄'])

      // 添加数据
      this.filteredData.forEach(item => {
        worksheet.addRow([item.name, item.sex, item.age])
      })

      // 导出Excel文件
      workbook.xlsx.writeBuffer().then(buffer => {
        const blob = new Blob([buffer], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' })
        const url = URL.createObjectURL(blob)

        const link = document.createElement('a')
        link.href = url
        link.download = '数据导出.xlsx'
        link.click()
      })
    }
  }
}
</script>

In the above code, we define A data array containing some data. The filter object is used to store filter conditions entered by the user. Automatic filtering of data is achieved through the computed property filteredData. In the exportData method, use the ExcelJS library to create an Excel workbook, import the filtered data into the worksheet, and then export the Excel file.

Finally, introduce and use the DataExport component in the page that uses this component:

<template>
  <div>
    <!-- 此处省略其他内容 -->
    <DataExport/>
  </div>
</template>

<script>
import DataExport from './DataExport.vue'

export default {
  components: {
    DataExport
  },
  // 此处省略其他代码
}
</script>

At this point, we have completed the automatic filtering and exporting of data using Vue and Excel. Readers can adjust and optimize the code according to their actual needs. I hope this article can be helpful to everyone, thank you for reading!

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