How to use Vue and Excel to implement batch editing and import of data

How to use Vue and Excel to implement batch editing and import of data

In daily work, we often need to process a large amount of data, including batch editing and import of data. In order to improve efficiency and reduce the possibility of errors, we can use Vue and Excel to implement this function. This article will introduce in detail how to use Vue and Excel to implement batch editing and import of data, and attach code examples.

First, we need to install the necessary dependency packages. In the Vue project, we can run the following command through the command line to install dependencies:

npm install --save xlsx vue-xlsx

Next, we need to create a component for Excel file upload. In this component, we can use the Vue-xlsx library to process Excel files. Here is a simple example:

<template>
  <div>
    <input type="file" @change="handleFileUpload" />
    <table>
      <thead>
        <tr>
          <th v-for="column in columns" :key="column">{{ column }}</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="row in data" :key="row.id">
          <td v-for="column in columns" :key="column">{{ row[column] }}</td>
        </tr>
      </tbody>
    </table>
  </div>
</template>

<script>
import { read, utils } from 'xlsx'

export default {
  data() {
    return {
      file: null,
      columns: [],
      data: []
    }
  },
  methods: {
    handleFileUpload(event) {
      this.file = event.target.files[0]

      const reader = new FileReader()

      reader.onload = (e) => {
        const workbook = read(e.target.result, { type: 'binary' })

        const worksheet = workbook.Sheets[workbook.SheetNames[0]]
        const jsonData = utils.sheet_to_json(worksheet, { header: 1 })

        this.columns = jsonData[0]
        this.data = jsonData.slice(1)
      }

      reader.readAsBinaryString(this.file)
    }
  }
}
</script>

<style scoped>
table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 8px;
  border: 1px solid #ddd;
}
</style>

In this component, we use an <input> tag to receive the uploaded Excel file. In the handleFileUpload method, we use FileReader to read the Excel file and use the xlsx library to convert the Excel file into JSON format data. Then, we assign the column names and data to the columns and data variables respectively, and display them in the template.

Next, we can use this Excel file upload component in other components, such as a data batch editing page. On this page, we can edit the imported data and support batch import into the database. The following is a simple example:

<template>
  <div>
    <excel-upload @upload="handleUpload" />
    <table>
      <thead>
        <tr>
          <th v-for="column in columns" :key="column">{{ column }}</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="row in data" :key="row.id">
          <td v-for="column in columns" :key="column">
            <input v-model="row[column]" />
          </td>
        </tr>
      </tbody>
    </table>
    <button @click="handleBatchUpdate">批量更新</button>
  </div>
</template>

<script>
import ExcelUpload from '@/components/ExcelUpload'

export default {
  components: {
    ExcelUpload
  },
  data() {
    return {
      columns: [],
      data: []
    }
  },
  methods: {
    handleUpload(uploadData) {
      this.columns = uploadData.columns
      this.data = uploadData.data
    },
    handleBatchUpdate() {
      // 批量更新到数据库的逻辑
    }
  }
}
</script>

<style scoped>
table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 8px;
  border: 1px solid #ddd;
}

input {
  width: 100%;
  padding: 4px;
  box-sizing: border-box;
}
</style>

In this page, we use the Excel file upload component created previously and listen to its upload event. When the upload is completed, we assign the uploaded column names and data to the columns and data variables respectively, and then display them in the template. At the same time, we have also added a "Batch Update" button to batch update the edited data into the database. This can be implemented using corresponding logic according to actual needs.

Through the above code examples, we can easily use Vue and Excel to implement batch editing and import functions of data. This not only improves work efficiency, but also reduces the possibility of errors. I hope this article can be helpful to everyone.

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