前端通过xlsx插件导入excel

使用的是ant-design-vue 的ui

封装好的代码：

<template>
  <div>
    <a-button type="primary" @click="btnImportClick" size="small" style="margin: 0 10px">{{ text }}</a-button>
    <input
      
      ref="upload"
      @change="readExcel($event)"
      type="file"
      accept=".xls,.xlsx"
      style="display:none;">
  </div>
</template>

<script>
import XLSX from 'xlsx'
// import { read, utils } from 'xlsx'
export default {
  name:'ImportExcel',
  data() {
    return {
      outputs:[]
    }
  },
  props:{
    text:{
      type:String,
      default: '导入'
    }

  },
  mounted() {
    // this.$refs.upload.addEventListener('change', e => {//绑定监听表格导入事件
    //   this.readExcel(e)
    // })
  },
  methods: {
    async btnImportClick(){
      this.$refs.upload.click()
      this.$emit('getExcelMsg', await this.outputs)
    },
      
    // sendMsg(){
    //   this.$emit('getExcelMsg', this.outputs)
    // },
    async readExcel(e) {//表格导入
      var that = this
      const files = e.target.files
      // console.log(files)
      if(files.length<=0){//如果没有文件名
        return false
      } else if(!/.(xls|xlsx)$/.test(files[0].name.toLowerCase())){
        this.$Message.error('上传格式不正确，请上传xls或者xlsx格式')
        return false
    }
      const fileReader = new FileReader()
      fileReader.onload = (ev) => {
    try {
        const data = ev.target.result
        const workbook = XLSX.read(data, {
        type: 'binary'
        })
        const wsname = workbook.SheetNames[0]//取第一张表
        const ws =  XLSX.utils.sheet_to_json(workbook.Sheets[wsname])//生成json表格内容
        // that.outputs = []//清空接收数据
        if(that.outputs.length != 0) {
          that.outputs = []
        }
        //编辑数据
        for(var i= 0;i<ws.length;i++){
        var sheetData = {
            address: ws[i].addr,
            value: ws[i].value,
        }
        that.outputs.push(sheetData)
        }
        this.$refs.upload.value = ''
    } catch (e) {
        return false
      }
    }
    fileReader.readAsBinaryString(files[0])
    // ----这里就是为空
    }
},
  watch:{
    outputs:{
      handler: function(oldVal, newVal){
      }
    }
  }
}
</script>

<style>

</style>

　　在其他页面调用：

 <import-excel @getExcelMsg="getExcelData"></import-excel>

　　

methods: {
    // 获取excel的值
    getExcelData(data){
      console.log('///',data)
      this.importData = data
      // console.log('---------', this.importData)
    },
}