Django中的JSONField即使在POST请求之后仍然保持为空

Question

我有一个模型在Django有一个JSONField。如果我使用Django Rest UI通过浏览器发布POST，那么数据将毫无问题地输入到模型中。但是，当我在应用程序中使用Python的requests.post时，除了JSONField数据之外的所有数据都存储在模型中

这是我的模型

from django.db import models
from django.contrib.postgres.fields import JSONField
class Scans(models.Model):
    Name = models.CharField(max_length=20)
    Server = models.CharField(max_length=20)
    Results = JSONField(default=dict)
    Report_Url = models.URLField(max_length=30)`

这是我的序列化程序

from rest_framework import serializers 
from .models import Scans   
class ScansSerializer(serializers.ModelSerializer):
    class Meta:
        model = Scans
        fields = '__all__'

这是我的看法

class ScansData(APIView):
    def get(self, request):
        scans = Scans.objects.all()
        serializer = ScansSerializer(scans, many=True)
        return Response(serializer.data, status=status.HTTP_200_OK)

    def post(self, request):
        serializer = ScansSerializer(data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        else:
            return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

    def delete(self, request):
        scans = Scans.objects.all()
        scans.delete()
        return Response(status=status.HTTP_204_NO_CONTENT)

这是我的要求

data = {
    "Name": "dodo",
    "Server": "ubuntu",
    "Report_Url": "https://127.0.0.1:8000/about/"
}
jsonval = {
    "Results": {
        "Severity_High": 8,
        "Severity_Medium": 7,
        "Severity_Low": 5
    }
}
requests.post('http://127.0.0.1:8000/scans/', data=data, json=jsonval)

网址

urlpatterns = [    
path('scans/', ScansData.as_view()),
]

使用requests.post后看到的内容

{
    "id": 10,
    "Name": "dodo",
    "Server": "ubuntu",
    "Results": {},
    "Report_Url": "https://127.0.0.1:8000/about/"
}

Answer 1

非常感谢Suh和Sachin！我终于能够解决这个问题了，原来json.dumps确实是关键。以下是我为解决这个问题所做的

jsonval = {
    "Results": {
        "Severity_High": 8,
        "Severity_Medium": 7,
        "Severity_Low": 5
    }
}

data = {
    "Name": "dodo",
    "Server": "ubuntu",
    "Results": json.dumps(jsonval["Results"]),
    "Report_Url": "https://127.0.0.1:8000/about/"
}
requests.post('http://127.0.0.1:8000/scans/', data=data)

Answer 2

数据={ “名称”：“渡渡鸟”， “服务器”：“ubuntu”， “报告Url”：“https://127.0.0.1:8000/about/ “结果”：{ “严重程度高”：8， “严重性/中等”：7， “严重程度低”：5 } } requests.post（'http://127.0.0.1:8000/scans/'，data=data）

Answer 3

尝试使用此格式的数据

data = {
    "Name": "dodo",
    "Server": "ubuntu",
    "Report_Url": "https://127.0.0.1:8000/about/",
    "Results": json.dumps({
        "Severity_High": 8,
        "Severity_Medium": 7,
        "Severity_Low": 5
    })
}

并删除jsonvalue

requests.post('http://127.0.0.1:8000/scans/', data=data)