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
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
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同事牛逼啊,写了个隐藏 bug,我排查了 3 天才解决问题!
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