Carga y análisis de front-end de Excel para operar datos como cadena json

Primero importe los módulos dependientes:

npm install xlsx --save

Introducido en main.js

import XLSX from 'xlsx'
Vue.prototype.XLSX = XLSX;

abrir dialogo

<el-button type="primary" @click="showPlanDialogVisible = true">上传计划</el-button>

caja de diálogo

<!--      上传计划对话框-->
      <el-dialog
        title="上传计划"
        :visible.sync="showPlanDialogVisible"
        width="21.3%"
        center>
        <el-upload
          ref="upload"
          drag
          action
          accept=".xls,.xlsx"
          :on-exceed="exceed"
          :limit="1"
          :on-remove="remove"
          :http-request="uploadFile">
          <i class="el-icon-upload"></i>
          <div class="el-upload__text">
            将文件拖到此处，或
            <em>点击上传</em>
          </div>
          <div class="el-upload__tip" slot="tip">1次只能上传1个xls文件，且不超过10M</div>
        </el-upload>
        <span slot="footer">
          <el-button @click="cancel">取 消</el-button>
          <el-button type="primary" @click="uploadPlan">确 定</el-button>
        </span>
      </el-dialog>

parte js

export default {
    data() {
       return {
         showPlanDialogVisible: false,
         fileList: [],   // excel文件列表
       }
    },
    methods: {
      //解析excel
    uploadFile(params) {
      const _file = params.file;
      const fileReader = new FileReader();
      fileReader.onload = (ev) => {
        try {
          const data = ev.target.result;
          const workbook = XLSX.read(data, { type: 'binary' });
          for (let sheet in workbook.Sheets) {
            //循环读取每个文件
            const sheetArray = XLSX.utils.sheet_to_json(workbook.Sheets[sheet]);
            //若当前sheet没有数据，则continue
            if(sheetArray.length === 0){
              continue;
            }
            console.log("读取文件", sheetArray);
            this.fileList = sheetArray;
            // for(let item in sheetArray){
            //   let rowTable = {};
            //   //这里的rowTable的属性名注意要与上面表格的prop一致
            //   //sheetArray的属性名与上传的表格的列名一致
            //   rowTable.name = sheetArray[item].station_name;
            //   // rowTable.age = sheetArray[item].;
            //   this.fileList.push(rowTable)
            // }
          }
        } catch (e) {
          this.$message.warning('文件类型不正确！');
        }
      };
      fileReader.readAsBinaryString(_file);
    },
    //上传1个以上文件时弹窗提示错误
    exceed: function() {
      this.$message.error("最多只能上传1个xls文件");
    },
    //删除文件
    remove() {
      this.fileList = [];
    },
    // 取消上传
    cancel() {
      this.showPlanDialogVisible = false;
      this.$refs.upload.clearFiles(); // 点击取消清空上传文件位置的列表文件
      this.$message.info('已取消');
    },
    // 上传文件
    uploadPlan() {
      if (this.fileList.length === 0) return this.$message.error('请选择要上传的文件!')
      console.log(this.fileList)
      this.$axios({
        method: 'post',
        url:'/api/get_station_profiles',
        data:JSON.stringify(this.fileList),
      }).then(res => {
        console.log('上传文件:', res);
        if (res.data.code !== 200) return this.$message.error('上传失败!');
        this.showPlanDialogVisible = false;
        this.$refs.upload.clearFiles();
        this.planData()
      });
    },
    }
}