Object of type 'QuerySet' is not JSON serializable

在Django框架中，我們不能直接將QuerySet對象通過 HttpResponse(json.dumps(QeurySet))返回給前端Ajax....

否則會報錯：Object of type 'QuerySet' is not JSON serializable

 

因此需要序列號后才能返回給前端Ajax....

from django.core import serializers

def ajax_value(request):
    ajax_testvalue = serializers.serialize("json", models.MonitorData02DB.objects.all().order_by("-id")[:1])
    return HttpResponse(ajax_testvalue)