前端导出表格

 enterBtnClick(date) {
      let qInfo = {};//查询参数
      let data = this.$encryption(qInfo);//加密参数
      let url = `/audexport/gzlapi/exportJhgzlData?startDate=${date[0]}&endDate=${date[1]}&statusType=3`;
      this.$axios
        .post(url, data, {
          headers: {
            // "Content-Type": "application/json;charset=UTF-8"
            acode: "audreport_other_jslwjhrygz_export"
          },
          responseType: "blob" //二进制流,
        })
        .then(function(res) {
          if (!res) return;
          let blob = new Blob([res.data], {
            type: "application/vnd.ms-excel;charset=utf-8"
          });

          let url = window.URL.createObjectURL(blob);
          let aLink = document.createElement("a");
          aLink.style.display = "none";
          aLink.href = url;
          aLink.setAttribute(
            "download",
            "表名(" +
              qInfo.startDate +
              " 至 " +
              qInfo.endDate +
              ").xlsx"
          );
          document.body.appendChild(aLink);
          aLink.click();
          document.body.removeChild(aLink);
          window.URL.revokeObjectURL(url);
        })
        .catch(function(error) {
          console.log(error.message);
        });
    }
  }

加密解密

// 加密
Vue.prototype.$encryption = function (ainfo) {
    let data = Base64.encode(JSON.stringify(ainfo));
    data = Base64.encode(data);
    return data;
}

// 解密
Vue.prototype.$decryption = function (aresdata) {
    var resData = Base64.decode(aresdata);
    try {
        resData = JSON.parse(resData);
    } catch (e) {
        resData = eval("(" + resData + ")");
    }
    return resData
}

Vue.prototype.openLoading = function () {
    const loading = this.$loading({           // 声明一个loading对象
        lock: true,                             // 是否锁屏
        text: '正在加载...',                     // 加载动画的文字
        spinner: 'el-icon-loading',             // 引入的loading图标
        background: 'rgba(0, 0, 0, 0.3)',       // 背景颜色
        target: '.analysis',                    // 需要遮罩的区域
        body: true,
        customClass: 'mask'                     // 遮罩层新增类名
    })
    // setTimeout(function () {                  // 设定定时器，超时5S后自动关闭遮罩层，避免请求失败时，遮罩层一直存在的问题
    //     loading.close();                      // 关闭遮罩层
    // }, 20000)
    return loading;
}
 //关于loding调用
     let aloading = "";
	//调用时开启
     aloading = this.openLoading()
     //拿到数据时结束
     aloading.close()