SpringBoot+vue导出excel，undefind的问题解决

感谢评论区好兄弟提醒，我blod写错了，已经修改成blob

先查看后端代码

response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.setCharacterEncoding("utf-8");
response.addHeader("responseType","blob");
response.setHeader("Access-Control-Expose-Headers", "Content-Disposition");
response.setHeader("Content-Disposition", "attachment;filename=" + "订单详情"+ ".xls");
EasyExcel.write(response.getOutputStream(), Orders.class).autoCloseStream(Boolean.FALSE).sheet("订单详情").doWrite(pageInfo.getRecords());

确保数据是正常返回给前端浏览器

 如果都没写错，

那么问题出在前端的axios：

1，axios要使用原生axios，写在js文件并且调用的方法不行

错误代码，如果是我写错了求指正

//导出excel
const getOrderPageExcel = (params) => {
  return $axios({
    url: '/order/daochu',
    method: 'get',
    params,
    responseType: "blob",
    cache: true
  })
}

async daochu () {
            getOrderPageExcel({ page: this.page, pageSize: this.pageSize, number: this.input || undefined, beginTime: this.beginTime || undefined, endTime: this.endTime || undefined }).then(res => {
              console.log(res);
              let link = document.createElement("a");
              let blob = new Blob([res.data], { type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" });
              link.style.display = "none";
              link.href = URL.createObjectURL(blob);
              link.setAttribute("download", decodeURI(Date.now()+'订单详情.xls'));
              document.body.appendChild(link);
              link.click();
              document.body.removeChild(link);

            }).catch(err => {
              this.$message.error('请求出错了：' + err)
            })
          },

完整代码

daochu () {
            axios.get('/order/daochu',{
              params:{ page: this.page, pageSize: this.pageSize, number: this.input || undefined, beginTime: this.beginTime || undefined, endTime: this.endTime || undefined },
              responseType: "blob",
              contentType: 'application/json'
            }).then(res => {
              console.log(res);
              let link = document.createElement("a");
              let blob = new Blob([res.data], { type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" });
              link.style.display = "none";
              link.href = URL.createObjectURL(blob);
              link.setAttribute("download", decodeURI(Date.now()+'订单详情.xls'));
              document.body.appendChild(link);
              link.click();
              document.body.removeChild(link);

            }).catch(err => {
              this.$message.error('请求出错了：' + err)
            })
          },