django使用ajax

html：
<script type="text/javascript" src="static/js/main.js"></script><script>
     function AjaxTest(){
         $.ajax({
             url:"/test_sql",
             type:'POST',
             data:{host:$('#IPhost').val(),user:$('#username').val(),passwd:$('#passwd').val(),dbname:$('#dbname').val()},
             success: function (arg) {
                alert(arg["massage"]);
             }
         });
     }
</script>
views：

from django.http import JsonResponse

def test_sql(request):
    host=request.POST.get("host")
    user=request.POST.get("user")
    passwd=request.POST.get("passwd")
    dbname=request.POST.get("dbname")
    result=test_connect(host, user, passwd, dbname)
    massage=JsonResponse({"massage":result})
    return massage