纯前端实现excel模板下载与上传校验

纯前端excel模板下载与上传校验的实现方式：使用xlsx插件。

我使用的版本为：

"xlsx": "^0.18.5"

一、模板下载

Vue代码示例：

<a-table
  id="exportTable"
  :columns="exportColumns"
  style="width: 100%"
  v-show="false"
></a-table>

表格列展示代码为：

const exportColumns = [
  {
    title: "客户号码",
    dataIndex: "customerPhone",
    key: "customerPhone",
  },
  {
    title: "是否接通",
    dataIndex: "connectInfo",
    key: "connectInfo",
  },
  {
    title: "接通后状态",
    dataIndex: "communicateInfo",
    key: "communicateInfo",
  },
  {
    title: "是否愿意好评",
    dataIndex: "appraiseInfo",
    key: "appraiseInfo",
  },
  {
    title: "接触日期",
    dataIndex: "connectTime",
    key: "connectTime",
  },
  {
    title: "客户满意度分池",
    dataIndex: "satisfactionLevelInput",
    key: "satisfactionLevelInput",
  },
];

导入XLSX：

import * as XLSX from "xlsx";

导出代码为：

const download = () => {
  let workbook = XLSX.utils.table_to_book(
    document.getElementById("exportTable")
  ); //需要在table上定义一个id
  try {
    XLSX.writeFile(workbook, "模板.xlsx");
  } catch (e) {}
};

二、上传校验

自定义组件importExcel.vue，代码如下：

<template>
  <a-upload
    v-model:file-list="fileList"
    name="file"
    :customRequest="importData"
    accept=".xls,.xlsx"
    class="uploadBtn"
  >
    <a-button type="primary"> 导入文件 </a-button>
  </a-upload>
</template>
<script setup>
import * as XLSX from "xlsx";
const props = defineProps({
  oldKey: Array,
  newKey: Array,
});
const emit = defineEmits({
  finish: null,
});

const importData = (file, fileList) => {
  let reader = new FileReader();
  /*  
      reader.readAsBinaryString(file.file) 注意这个是传入的是file.file，
      刚开始传的是file、不可以、ant框架是file.file
      */
  reader.readAsBinaryString(file.file); //这个是file.file文件，可不是file……
  reader.onload = (ev) => {
    let res = ev.target.result;
    const worker = XLSX.read(res, { type: "binary" });
    // 将返回的数据转换为json对象的数据
    reader = XLSX.utils.sheet_to_json(worker.Sheets[worker.SheetNames[0]]);
    console.log(reader);
    
    emit("finish", transformKey(reader));
  };
};

//key转换
const transformKey = (list) => {
  let arrNew = [];
  list.forEach((item) => {
    let obj = {};
    props.oldKey.forEach((element, index) => {
      obj[props.newKey[index]] = item[element];
    });
    arrNew.push(obj);
  });
  return arrNew;
};
</script>
<style scoped>
.uploadBtn {
  display: inline-block;
  margin-right: 8px;
}
</style>

在页面引用该组件，自定义finish函数对字段进行上传校验和处理：

<ImportExcel :oldKey="oldKey" :newKey="newKey" @finish="finish" />

excel字段转换：

const oldKey = ref([
  "客户号码",
  "是否接通",
  "接通后状态",
  "是否愿意好评",
  "客户满意度分池",
  "接触日期",
]);
const newKey = ref([
  "customerPhone",
  "connectInfo",
  "communicateInfo",
  "appraiseInfo",
  "satisfactionLevelInput",
  "connectTime",
]);