1.关键点：

• blob
• 乱码
• 传参

2.参考资料：处理blob文件流和乱码问题

https://blog.csdn.net/qq_41512902/article/details/125680531

https://blog.csdn.net/qq_38804584/article/details/109238794

3.我的代码：axios发请求下载excel

js代码

    download_dlt_report(method,url,data,headers){
      axios({
          method: "post",
          url: 'https://dltapi.wistron.com/dlt/skillcard/download', // 请求地址
          data:{
            "plantCode":"P1",
            "currentPage": 1,
            "pageSize": 10
          },
          headers:{
              'Content-Type': 'application/json',
              'Authorization': "Bearer ********************************************",
          },
          responseType: "blob" // 表明返回服务器返回的数据类型
          // responseType: "arraybuffer",
        }).then(
          (response) => {
            console.log('response',response)
            let fileName = "skillcard" + Date.parse(new Date()) + ".xlsx";
            if (window.navigator.msSaveOrOpenBlob) {
              navigator.msSaveBlob(response, fileName);
            } else {
              let link = document.createElement("a");
              link.href = window.URL.createObjectURL(new Blob([response.data],{type: "application/vnd.ms-excel"}));
              link.download = fileName;
              link.click();
              window.URL.revokeObjectURL(link.href);
            }
          },
          (err) => {
            reject(err);
          }
        );
    },