Question

我正在尝试将一些值从前端发送到Django应用程序。我想操纵这些值然后重定向到另一个视图，但似乎Django没有重定向也没有渲染任何东西。

这是我的urls.py

from django.conf.urls import url
from . import settings
from personality_form import views

urlpatterns = [
    url(r'^$', views.home, name="home"),
    url(r'^apiLogin/(?P<_id>\d+)$', views.apiLogin,name="apiLogin"),
    url(r'^formulario/(?P<_id>\d+)$', views.formulario, name="formulario"),
]

这是我的views.py

from django.shortcuts import render, redirect
from personality_form.models import *
from personality_form.forms import *
from django.views.decorators.csrf import csrf_exempt

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

def formulario(request, _id):
    if (request.method == 'POST'):
        form = personalityForm(request.POST)
    else:
        form = personalityForm()

    return render(request, 'formulario.html', {'form': form})

@csrf_exempt
def apiLogin(request, _id):
    if (request.method == 'POST'):        
        return redirect('/formulario/'+_id)

这是我用来从前面发送POST请求的javascript函数。

function test() {
            var http = new XMLHttpRequest();
            http.open('POST', '/apiLogin/1234', true);
            http.setRequestHeader('Content-type', 'application/json');
            var payload = {userID: "1234", access: "4567"};
            var params = JSON.stringify(payload);

            // Send request
            http.send(params);
        }

我尝试将POST发送到apiLogin视图。我检查它是否正在进入该视图但是当我尝试重定向到公式视图时，它输入公式代码但似乎不执行渲染指令。我试图更改渲染的重定向功能，但不显示新的html。

有没有理由不重定向网址并改变前端？

我正在使用Django 1.11和Python 3.6。

Answer 1

您必须稍微更改代码。在api_login()中，使用参数创建反向网址。然后在JavaScript中更改窗口URL本身以重定向。

首先，在def apiLogin(request, _id)：

中

from django.core.urlresolvers import reverse
from django.http import JsonResponse

@csrf_exempt
def apiLogin(request, _id):
    if (request.method == 'POST'):        
        #create a url string using reverse.
        url = reverse('formulario' , kwargs = {'_id' : _id})
        #if the above way doesn't work then try: url = request.build_absolute_uri(reverse('formulario' , kwargs = {'_id' : _id}))
        #Now simply return a JsonResponse. Ideally while dealing with ajax, Json is preferred. 
        return JsonResponse(status = 302 , data = {'success' : url })

然后在你的JavaScript中：

function test() {
    var http = new XMLHttpRequest();
    //The onreadystatechange function is called every time the readyState changes.
    //4: request finished and response is ready
    //basically the below function gets called every time your the response of you request request is returned from the server.
    http.onreadystatechange = function() {
        if (this.readyState == 4 && this.status == 302) {
            var json = JSON.parse(this.responseText); 
            console.log(json.success);
            //following line would actually change the url of your window.  
            window.location.href = json.success; 
        }
    };
    http.open('POST', '/apiLogin/1234', true);
    http.setRequestHeader('Content-type', 'application/json');
    var payload = {userID: "1234", access: "4567"};
    var params = JSON.stringify(payload);

    // Send request
    http.send(params);     
}

我希望这有效。如果没有，请检查控制台内打印的内容。如果它工作，那么只需删除控制台语句。

希望这会有所帮助。感谢。

Django在收到POST请求后没有重定向

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