为什么 leaflet.ajax.js 不显示我添加的图层

Question

我正在使用 django、leaflet 和 postgis 开发一个网络地图应用程序。我的网络应用程序可以将 OSM（openstreetmap）显示为背景地图，但我添加的图层（来自 QGIS）和点数据模型（在 geodjango 中构建）无法显示在网络应用程序中。请帮帮我。 [当然我可以在我添加的图层中看到文本格式（如json）如下：

https://i.stack.imgur.com/qYnWe.jpg

index.html的代码：

<!DOCTYPE html>
<html>
    {% load static %}
    {% load leaflet_tags %}
    <head>
        {% leaflet_js %}
        {% leaflet_css %}
    <title>Service Maps for Tourism</title>
    <style type="text/css">
        #gis {width: 80%; height: 800px;}
        </style>

        <script type="text/javascript" src= "{% static 'dist/leaflet.ajax.js' %}"> </script> 

    </head>
    <body>
<h1> سامانه نقشه گردشگری</h1>
<br/>
<script type="text/javascript">
    function our_layers(map,options){
        var datasets = new L.GeoJSON.AJAX("{% url 'name' %}",{
        });
        datasets.addTo(map);
    }
</script>

{% leaflet_map "gis" callback="window.our_Layers" %}
    </body>
</html>

views.py如下：

from django.shortcuts import render
from django.views.generic import TemplateView
from django.core.serializers import serialize
from django.http import HttpResponse
from .models import Provinces
# Create your views here.
class HomePageView(TemplateView):
    template_name= 'index.html'

def province_dataSets (request):
    provinces= serialize('geojson', Provinces.objects.all()) 
    return HttpResponse(provinces, content_type= 'json')

models.py如下：

from __future__ import unicode_literals
from django.db import models
from django.contrib.gis.db import models
from django.db.models import Manager

# Create your models here.

class TourismPoints(models.Model):
    name= models.CharField(max_length= 50)
    location= models.PointField(srid= 4326)
    objects= models.Manager()

    def __unicode__(self):
        return self.name

    class Meta:
        verbose_name_plural= "Tourism points"    

class Provinces(models.Model):
    name = models.CharField(max_length=50)
    english_name = models.CharField(max_length=40)
    geom = models.MultiPolygonField(srid=4326)

    def __unicode__(self):
        return self.name

    class Meta:
        verbose_name_plural= "Provinces"

urls.py如下：

from django.conf.urls import include, url
from .views import HomePageView, province_dataSets

from django.urls import path

urlpatterns = [
path ('', HomePageView.as_view (), name='home'),
path('province_data/', province_dataSets, name='name'),]

Answer 1

我用的是Django 2.7版本，幸好可以显示添加的图层

为什么 leaflet.ajax.js 不显示我添加的图层

why my added layers are not displayed by leaflet.ajax.js

django

leaflet

gis

geodjango