axios 送出表單同時下載下傳檔案

• vue + elementUI + axios 送出表單下載下傳檔案

// 下載下傳檔案
            download(url, requestData) {
                this.$axios({
                    method: 'post',
                    url: url,
                    data: this.$qs.stringify(requestData),
                    responseType: 'blob'
                }).then(response => {
                    var data = response.data;
                    if (!data) {
                        return
                    }
                    var content_disposition = response.headers['content-disposition'];
                    var filename = "file";
                    if (content_disposition.indexOf("filename") > -1) {
                        filename = content_disposition.split("=")[1].trim();
                        filename= decodeURI(escape(filename))
                    }
                    let url = window.URL.createObjectURL(new Blob([data]))
                    let link = document.createElement('a')
                    link.style.display = 'none'
                    link.href = url
                    link.setAttribute('download', filename)
                    document.body.appendChild(link)
                    link.click()
                }).catch((error) => {
                    this.$message.error(error.message);
                });
            }