Django实现省市县级联菜单
1、创建工程mymenu和项目menu。
2、改变mymenu中setting.py的DIRS，STATICFILES_DIRS
'DIRS': [BASE_DIR + "/templates"], #后面若无数据，不可以加逗号
STATICFILES_DIRS = (
os.path.join(BASE_DIR,'static'),
)
3、在menu中建立views.py和models.py并建立相关代码
models.py代码：
from django.db import models
# Create your models here.
# 建立城市自关联数据库表
class AreaInfo(models.Model):
aid=models.IntegerField(default=0)
atitle = models.CharField(max_length=30)
aParent = models.IntegerField(null=True,blank=True)
def __str__(self):
return self.atitle
class Meta:
db_table = 'areas' # 指定表名称views.py代码：
from django.shortcuts import render,HttpResponse
from django.http import JsonResponse
from menu import models
from .models import AreaInfo
# Create your views here.
# 级联菜单
def getAreas(request):
return render(request,'getAreas.html')
#获得省份
def getProvince(request):
provinces = AreaInfo.objects.filter(aParent = 0)
res = []
for i in provinces:
res.append( [i.aid , i.atitle] )
return JsonResponse({'provinces':res})
#获得城市
def getCity(request):
city_id = request.GET.get('city_id')
cities = AreaInfo.objects.filter(aParent=city_id)
res = []
for i in cities:
res.append([i.aid, i.atitle])
return JsonResponse({'cities':res})
#获得区 县
def getDistrict(request):
district_id = request.GET.get('district_id')
cities = AreaInfo.objects.filter(aParent=district_id)
res = []
for i in cities:
res.append([i.aid, i.atitle])
return JsonResponse({'district': res})
def test(request):
# models.AreaInfo.objects.create(aid='1',atitle='陕西省',aParent='0')
# models.AreaInfo.objects.create(aid='2', atitle='山西省',aParent='0')
# models.AreaInfo.objects.create(aid='101', atitle='渭南市',aParent='1')
# models.AreaInfo.objects.create(aid='102', atitle='宝鸡市', aParent='1')
# models.AreaInfo.objects.create(aid='201', atitle='吕梁市', aParent='2')
# models.AreaInfo.objects.create(aid='202', atitle='忻州市', aParent='2')
# models.AreaInfo.objects.create(aid='10101', atitle='渭南1', aParent='101')
# models.AreaInfo.objects.create(aid='10102', atitle='渭南2', aParent='101')
# models.AreaInfo.objects.create(aid='10201', atitle='宝鸡1', aParent='102')
# models.AreaInfo.objects.create(aid='10202', atitle='宝鸡2', aParent='102')
# models.AreaInfo.objects.create(aid='20101', atitle='吕梁1', aParent='201')
# models.AreaInfo.objects.create(aid='20102', atitle='吕梁2', aParent='201')
# models.AreaInfo.objects.create(aid='20201', atitle='忻州1', aParent='202')
# models.AreaInfo.objects.create(aid='20202', atitle='忻州2', aParent='202')
# models.AreaInfo.objects.all().delete()
# result = models.AreaInfo.objects.all()
# for row in result:
# print(row.aid, row.atitle, row.aParent)
# 输出省
# provinces = AreaInfo.objects.filter(aParent='0')
# res = []
# for i in provinces:
# res.append([i.aid, i.atitle])
# print(res) #输出省
#根据省的aParent输出市
# a=1
# city_id = request.GET.get(a)
# print('city_id',city_id)
# cities = models.AreaInfo.objects.filter(aParent=a)
# # for row in cities:
# # print(row.aid,row.atitle)
# res = []
# for i in cities:
# res.append([i.aid, i.atitle])
# print(res)
# 根据市的aParent输出县
# district_id = request.GET.get('district_id')
# cities = AreaInfo.objects.filter(aParent=101)
# res = []
# for i in cities:
# res.append([i.aid, i.atitle])
# print(res)
# return JsonResponse({'district': res})
return HttpResponse('tianjiachenggong！！！')
4、建立getAreas.html代码
省市县菜单
注意：js的引用
5、项目目录：
6、数据库内容：
7、最后结果：
参考自：https://www.cnblogs.com/Lin-Yi/p/7550067.html