Django 前后台交互注意

from django.http import JsonResponse
def test(request):
    result = {"status":"错误","data":"","city":"北京"}
    return return JsonResponse(result)

 上述代码容易乱码，改成以下中文成功

from django.http import HttpResponse
import json

def test(request):
    result = {"status":"错误","data":"","city":"北京"}
    #json返回为中文
    return HttpResponse(json.dumps(result,ensure_ascii=False),content_type="application/json,charset=utf-8")

下面是交互的类型 

from django.shortcuts import render

def main_page(request):
    return render(request, 'index.html')

#########################html#################################

from django.shortcuts import render

def main_page(request):
    data = [1,2,3,4]
    return render(request, 'index.html', {'data': data})
#########################js#################################
# -*- coding: utf-8 -*-
 
import json
from django.shortcuts import render
 
def main_page(request):
    list = ['view', 'Json', 'JS']
    return render(request, 'index.html', {
            'List': json.dumps(list),
        })

#views.py中返回的函数中的值要用 json.dumps() 处理
#在网页上要加一个 safe 过滤器。

var List = {{ List|safe }};

######################网页前台使用Ajax发送请求，后台处理数据后返回数据给前台，前台不刷新网页动态加载数据#############################3
def scene_update_view(request):
    if request.method == "POST":
            name = request.POST.get('name')
            status = 0
            result = "Error!"
            return HttpResponse(json.dumps({
                "status": status,
                "result": result
            }))

js 

 function getSceneId(scece_name, td) {
            var post_data = {
                "name": scece_name,
            };

            $.ajax({
                url: {% url 'scene_update_url' %},
                type: "POST",
                data: post_data,
                success: function (data) {
                    data = JSON.parse(data);
                    if (data["status"] == 1) {
                        setSceneTd(data["result"], scece_name, td);
                    } else {
                        alert(data["result"]);
                    }
                }
            });
        }