function download(value) {
            var upload_path = "/download/" + value;
            let xhr=new XMLHttpRequest();
            xhr.open('POST' ,upload_path,true);
            xhr.responsenType='blob';
            xhr.onload=()=>{
                if(xhr.status==200){
                    var blob = new Blob([xhr.response]);
                    let url=window.URL || window.webkitURL || window.moxURL;
                    let downloadHref = window.URL.createObjectURL(blob);
                    let downloadLink = document.createElement('a');
                    downloadLink.href = downloadHref;
                    downloadLink.download = value;
                    downloadLink.click();
                    url.revokeObjectURL(downloadHref);
                }
            }
            xhr.send();
        }

export function exportExcel(url, params = {}) {
  return new Promise((resolve, reject) => {
    axios({
      method: "get",
      url: url, // 请求地址
      params,
      responseType: "blob" // 表明返回服务器返回的数据类型
    }).then(
      (response) => {
        resolve(response);
        console.log(response)

        let fileName = "导出单据" + Date.parse(new Date()) + ".xls";
        if (window.navigator.msSaveOrOpenBlob) {
          navigator.msSaveBlob(response, fileName);
        } else {
          let link = document.createElement("a");
 
          link.href = window.URL.createObjectURL(response);
          link.download = fileName;
          link.click();
          // 释放内存
          window.URL.revokeObjectURL(link.href);
 
        }
      },
      (err) => {
        reject(err);
      }
    );
  });
}