序列化
1.对象
对于Django的Queryset<Queryset [object,object,object]>这种关于django的Querysetset对象这种是不能用python的json方法，需要用到django的 serializers模块
传递给 serialize 方法的参数有二点：
a.个序列化目标格式，
b.一个是序列号的对象QuerySet. (事实上，第二个参数可以是任何可迭代的Django Model实例，但它很多情况下就是一个QuerySet).
from django.conf.urls import url from django.contrib import admin from app01 import views from app02 import views as v2 from app03 import views as v3 urlpatterns = [ url(r'^xuliehua/', v3.xuliehua), url(r'^get_data/', v3.get_data), ]
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h1>用户列表</h1> <table id="tb"> </table> <script src="/static/jquery-3.1.1.js/"></script> <script> $(function () { initData() }); //页面执行完毕，自动执行函数 function initData() { $.ajax({ url:'/get_data/', type:'GET', dataType:'JSON', success:function (arg) { //$('#tb').append(arg); if (arg.status){ //console.log(arg.data); var v = JSON.parse(arg.data); console.log(v); } } }) } </script> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> {% for row in user_list %} <tr> <td>{{ row.id }}</td> <td>{{ row.username }}</td> <td>{{ row.email }}</td> </tr> {% endfor %} </body> </html>
from django.shortcuts import render,HttpResponse from app01 import models import json def xuliehua(request): return render(request,'xuliehua.html') def get_data(request): from django.core import serializers ret ={'status':True,'data':None} try: # 1.对象转字符串（序列化） user_list = models.UserInfo.objects.all() # QuerySet【obj,obj,obj】 ret['data'] = serializers.serialize("json",user_list) # 通过Django 内置序列化 except Exception as e: ret['status'] = False result = json.dumps(ret) return HttpResponse(result)
2.字典
关于python一些内置一些类型（例如：字典，列表，元祖。。。）的序列化，就用json 就可以了
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>用户列表</h1>
<table id="tb">
</table>
<script src="/static/jquery-3.1.1.js/"></script>
<script>
$(function () {
initData()
});
//页面执行完毕，自动执行函数
function initData() {
$.ajax({
url:'/get_data/',
type:'GET',
dataType:'JSON',
success:function (arg) {
//$('#tb').append(arg);
if (arg.status){
console.log(arg.data);
//var v = JSON.parse(arg.data);
//console.log(v);
}
}
})
}
</script>
</body>
</html>
from django.shortcuts import render,HttpResponse from app01 import models import json def xuliehua(request): return render(request,'xuliehua.html') def get_data(request): from django.core import serializers ret ={'status':True,'data':None} try: # 2.字典转字符串（序列化） user_list = models.UserInfo.objects.all().values('id','username') ret['data'] = list(user_list) # user_list最外面querySet,里面是字典；list(user_list)相当于把querySet list化 except Exception as e: ret['status'] = False result = json.dumps(ret) return HttpResponse(result)
3.元组
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h1>用户列表</h1> <table id="tb"> </table> <script src="/static/jquery-3.1.1.js/"></script> <script> $(function () { initData() }); //页面执行完毕，自动执行函数 function initData() { $.ajax({ url:'/get_data/', type:'GET', dataType:'JSON', success:function (arg) { //$('#tb').append(arg); if (arg.status){ console.log(arg.data); //var v = JSON.parse(arg.data); //console.log(v); } } }) } </script> </body> </html>
from django.shortcuts import render,HttpResponse from app01 import models import json def xuliehua(request): return render(request,'xuliehua.html') def get_data(request): from django.core import serializers ret ={'status':True,'data':None} try: # 3.元组转字符串（序列化） user_list = models.UserInfo.objects.all().values_list('id', 'username') ret['data'] = list(user_list) # user_list最外面querySet,里面是元组；list(user_list)相当于把querySet list化 except Exception as e: ret['status'] = False result = json.dumps(ret) return HttpResponse(result)
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