Javascript 在Django视图中传递列表或数组(作为参数)

Javascript 在Django视图中传递列表或数组(作为参数),javascript,python,ajax,django,Javascript,Python,Ajax,Django,如何在Django视图中使用传递值列表/数组? 我试过这样的方法: def to_csv(request): g_data = request.GET.getlist('json_data') g_header = request.GET.get('header') g_info = request.GET.get('info') response = HttpResponse(content_type='text/csv') response['Cont

如何在Django视图中使用传递值列表/数组? 我试过这样的方法:

def to_csv(request):
    g_data = request.GET.getlist('json_data')
    g_header = request.GET.get('header')
    g_info = request.GET.get('info')
    response = HttpResponse(content_type='text/csv')
    response['Content-Disposition'] = 'attachment; filename="somefilename.csv"'

    list_header = [[g_info, '', '', '', '', '', '', ''],
                   ['Municipality', 'Barangay', 'Total Number of Structures', 'Total Not Affected', 'Total Affected',
                    'Low', 'Medium', 'High', 'Total Affected %']]
    disclaimer = [
        'Disclaimer: The information....',
        '', '', '', '', '', '']

    for val in g_data:
        perc = (val[4] / float(val[2])) * 100
        st_perc = str(round(perc, 2))
        val.append(st_perc)
        list_header.append(val)

    list_header.append(disclaimer)

    writer = csv.writer(response)
    writer.writerows(list_header)
    return response
在我使用AJAX的JavaScript代码中:

function to_csv(json_data, header, info){
 $.ajax({
    url: "/to_csv/",
    headers: {
    Accept : "text/csv; charset=utf-8",
    "Content-Type": "text/csv; charset=utf-8"
    },
    type: "GET",
    data: {
        'json_data': json_data,
        'header': header,
        'info':info
    },

问题是,它无法获取传递的数据g_data

通过使用json.loads解决此问题:

g_data = json.loads(request.GET.get('json_data'))

将数据发送到服务器并要求它创建CSV,这似乎是一种浪费,因为您可以在javascript中轻松地创建CSV。服务器上的负载越小,响应越快

假设你的链接是

<a href="" id="download_link">Download CSV</a>
function to_csv(json_data, header, info){
    var s = "data:text/csv,"
    for (var key in json_data) {
        if (json_data.hasOwnProperty(key)) {
            s += json_data[key];
        }
    }
}