flask 下载本地文件

下载本地文件就是找到文件路径  调用flask自带的send_file(路径)下载， 并返回

flask:

# 下载文件

from flask import send_file
@task_mgm.route('/taskinfo_download=<string:filename>')
@sso_wrapper
def taskinfo_download(filename):

UPLOAD_FOLDER = 'app/controls/task_mgm/task_files/'
ROOT_FOLDER = os.path.join(os.getcwd(), UPLOAD_FOLDER)  # 整合绝对路径
response = make_response(send_file(ROOT_FOLDER + filename))
return response

js:

// 下载文件
$("#download").click(function () {
    if(confirm('确定下载？')){
        var filename = $('#download').val();
        // $.get('/task_mgm/taskinfo_download='+filename)
        if(filename){
            window.location.href='/task_mgm/taskinfo_download='+filename
        }
        else {
            alert('下载失败')
        }
    }
});