•axios接受文件流,需要设置{responseType:'arraybuffer'}axios.post(apiUrl,formdata,{responseType:'arraybuf
•axios 接受文件流,需要设置 {responseType:'arraybuffer'}
axios.post(
apiUrl,
formdata,
{responseType:'arraybuffer'}
).then(res=> {
if (res.status === 200) {
let blob = new Blob([res.data], {
type: res.headers['content-type']
});
const fileName = res.headers['content-disposition'];
const title = fileName && (fileName.indexOf('filename=') !== -1) ? fileName.split('=')[1] : 'download';
require('script-loader!file-saver');
saveAs(blob, title);
}
})
.catch();
注: axios 中 response 表示服务器响应的数据类型,可以是 arraybuffer , blob, document , json , text , stream . 默认为: json
•后端发送文件:Python
from flask import send_from_directory
@admin_bp.route('/tasksothers/download', methods=["GET", "POST"])
@auth.login_required
def api_tasksothers_download():
root_path = ''
src_name = "a.sql"
upload_path = os.path.join(root_path, src_name)
print("upload_path =", upload_path)
if os.path.isfile(upload_path):
response = send_from_directory(root_path, src_name, as_attachment=True)
print("response: ",response)
response.headers["Access-Control-Expose-Headers"] = "Content-disposition"
print("response: ", response.headers)
return response
注: 如果 response.header 中没有添加 Access-Control-Expose-Headers 这个参数(代表:服务器允许浏览器访问的头(headers)的白名单),vue中就无法获取 content-disposition,即 res.headers['content-disposition'];无法找到
总结
以上所述是小编给大家给大家介绍的vue element中axios下载文件(后端Python),希望对大家有所帮助,如果大家有任何疑问欢迎给我留言,小编会及时回复大家的!
vue element vue 下载文件 vue axios