详解如何实现在Vue中导入Excel文件

以将此Excel导出为json数据为例

一、安装依赖

npm install file-saver --save
npm install xlsx --save
npm install script-loader --save-dev

二、template中

<span>导入表格</span>
<input id="upload" type="file" @change="importfxx()"  accept=".csv, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel" />

三、script中js代码

methods:{
   // 处理导入Excel中日期问题
    formatDate(numb, format) {
      const time = new Date((numb - 1) * 24 * 3600000 + 1);
      time.setYear(time.getFullYear() - 70);
      const year = time.getFullYear() + "";
      const month = time.getMonth() + 1 + "";
      const date = time.getDate() - 1 + "";
      if (format && format.length === 1) {
        return year + format + month + format + date;
      }
      return (
        year +
        (month < 10 ? "0" + month : month) +
        (date < 10 ? "0" + date : date)
      );
    },

    // 导入Excel
    importfxx() {
      let _this = this;
      let f = event.currentTarget.files[0];
      let rABS = false; //是否将文件读取为二进制字符串

      let reader = new FileReader();
      //if (!FileReader.prototype.readAsBinaryString) {
      FileReader.prototype.readAsBinaryString = function (f) {
        let binary = "";
        let rABS = false; //是否将文件读取为二进制字符串
        let wb; //读取完成的数据
        let outdata;
        let reader = new FileReader();
        reader.onload = function (e) {
          let bytes = new Uint8Array(reader.result);
          let length = bytes.byteLength;
          for (let i = 0; i < length; i++) {
            binary += String.fromCharCode(bytes[i]);
          }
          let XLSX = require("xlsx");
          if (rABS) {
            wb = XLSX.read(btoa(fixdata(binary)), {
              //手动转化
              type: "base64",
            });
          } else {
            wb = XLSX.read(binary, {
              type: "binary",
            });
          }
          outdata = XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[0]]); //outdata就是你想要的东西

          const keyObj = {
            序号: "id",
            情况跟踪: "track",
            日期: "date",
            标题: "title",
            状态: "status",
            结果: "result",
            预警: "warning",
          };

          outdata.forEach((item) => {
            // 将中文的键名替换成英文的
            for (let k in keyObj) {
              let newKey = keyObj[k];
              if (newKey) {
                item[newKey] = item[k];
                delete item[k];
              }
            }
            item["date"] = _this.formatDate(item["date"], "-");
          });
          console.log(outdata);
        };
        reader.readAsArrayBuffer(f);
      };
      if (rABS) {
        reader.readAsArrayBuffer(f);
      } else {
        reader.readAsBinaryString(f);
      }
    },
}

如上操作之后，打印结果是如下

到此这篇关于详解如何实现在Vue中导入Excel文件的文章就介绍到这了,更多相关Vue导入Excel文件内容请搜索猪先飞以前的文章或继续浏览下面的相关文章希望大家以后多多支持猪先飞！

原文出处：https://segmentfault.com/a/1190000041332472