使django ajax视图返回一个文件

from django.http import HttpResponse

@csrf_exempt
def download_file(request):
    # 处理Ajax请求并返回文件
    file_path = '/path/to/file.pdf'  # 文件路径
    with open(file_path, 'rb') as file:
        response = HttpResponse(file.read(), content_type='application/pdf')
        response['Content-Disposition'] = 'attachment; filename="file.pdf"'
        return response

$.ajax({
    url: '/download_file/',
    type: 'GET',
    success: function(data) {
        // 处理响应数据
        var blob = new Blob([data], {type: 'application/pdf'});
        var link = document.createElement('a');
        link.href = window.URL.createObjectURL(blob);
        link.download = 'file.pdf';
        link.click();
    }
});