从POST请求打印数据时，请request.post.get（）在Django应用中返回无返回

Question

我正在构建一个电子商务网络应用程序。我正在尝试使用一些库存HTML产品卡代码构建“添加到购物车”功能，并将事件侦听器添加到“添加到购物车”按钮中。我最初尝试使用按钮中的点击事件，但是我无法从HTML产品页面中提取产品数量和产品名称。然后，我尝试在按钮周围使用表单标签，然后使用Post方法发布产品名称和产品数量。当请求到达我的服务器时，我正在尝试访问数据（最初仅将其打印出来，以便我可以决定如何将其发布到我的数据库中） request.post.get（'产品数量'）返回的值是“无”。当我打印请求时，印刷结果为b'{'product name'：，'产品数量'：。我似乎找不到访问此数据以供进一步使用的方法。代码如下：

{% block scripts %}
<script src="/static/js/addToCart.js" defer></script>
{% endblock %}
{% block content %}
<h1>Get Smart Products</h1>
<div class="container">
    <ul>
    {% for product in product_list %}
        <div class="container">
            <img src="/media/{{product.product_image}}">
            <li>{{ product.name }}</li>
            <li>{{ product.category }}</li>
            <li>{{ product.price }}</li>
            <li>{{ product.description }}</li>
            
            <input type="hidden" value="{{ product.name }}" id="prod_name">
            <label for="Quantity">Quantity</label>
            <div class="input-group text-center mb-3" style="width:130px;">
                <button class="input-group-text decrement-btn">-</button>
                <input type="text" name="quantity" class="form-control qty-input text-center" value="1" id="quantity-btn">
                <button class="input-group-text increment-btn">+</button>
            </div>
            <form action="" method="post">
                {% csrf_token %}<button class="btn btn-danger addToCartBtn" id="addToCartBtn">Add to cart</button>
            </form>
            
        </div>
    {% endfor %}
    </ul>
</div>
{% endblock %}

JS代码

axios.defaults.xsrfCookieName = 'csrftoken'
axios.defaults.xsrfHeaderName = "X-CSRFTOKEN"

document.getElementById("addToCartBtn").addEventListener("click", function(e){
    e.preventDefault();
    const product_input = document.getElementById("prod_name").value
    const product_quantity = Number(document.getElementById("quantity-btn").value)
    console.log(product_input,product_quantity)
    axios.post('/ecomm/addToCart/', {'Product Name': product_input, 'Product Quantity':product_quantity}).then((response)=>{
        console.log(response)
    })
})

DJANGO APP。查看代码

from django.shortcuts import render
from django.http import HttpResponse, HttpResponseRedirect, JsonResponse
import requests
from requests_oauthlib import OAuth1
import json
from .models import Product


# Create your views here.
def index(request):
    return render(request, 'home.html', {})

def fin_ed_tech(request):
    product_list = Product.objects.all()
    return render(request, 'get_smart.html', {'product_list': product_list})

def person_pod(request):
    return render(request, 'person_pod_essentials.html', {})

def exoskel_maint(request):
    return render(request, 'exoskeletonal_maintenance.html', {})

def outer_mind_clothing(request):
    return render(request, 'clothing_for_the_outer_mind_wall.html', {})

def about(request):
    return render(request, 'about.html', {})

def search(request):
    return render(request, 'search.html', {})

def search_products(request):

    # print(request.GET.get('query'))
    query = request.GET.get('query')
    
    if Product.objects.filter(name__contains=query):
        db_vars = Product.objects.filter(name__contains=query)
        print(db_vars)
        db_data = list(db_vars.values())
        return JsonResponse({'db_data': db_data})
    else:    
        auth = OAuth1("793746cd4fcf40bda3e1bc6b5b31b277", "e99e19abfa7347cabbf2591bbf8f48e1")
        endpoint = f"http://api.thenounproject.com/icon/{query}"

        API_response = requests.get(endpoint, auth=auth)
        print(API_response.content)
        JSON_API_response = json.loads(API_response.content)
        image_url = JSON_API_response['icon']['preview_url']

        return JsonResponse({'url':image_url})
        # return render(request, 'search_results.html', {})

def addToCart(request):
    if request.method == 'POST':
        prod_name = request.POST.get('Product Name')
        print(prod_name)

    return HttpResponseRedirect('get_smart/')

def Cart(request):
    pass

错误，当涉及到这里使用的所有语言和技术时，我会发现

None
[05/Jul/2022 21:21:09] "POST /ecomm/addToCart/ HTTP/1.1" 302 0
Not Found: /ecomm/addToCart/get_smart/
[05/Jul/2022 21:21:09] "GET /ecomm/addToCart/get_smart/ HTTP/1.1" 404 4124

我是初学者，因此我感谢所有建议的建议。谢谢你！

Answer 1

您的字段不在您提交的表格之外。您必须这样的内部写入它们：

{% block scripts %}
<script src="/static/js/addToCart.js" defer></script>
{% endblock %}
{% block content %}
<h1>Get Smart Products</h1>
<div class="container">
   <ul>
      {% for product in product_list %}
      <div class="container">
         <img src="/media/{{product.product_image}}">
         <li>{{ product.name }}</li>
         <li>{{ product.category }}</li>
         <li>{{ product.price }}</li>
         <li>{{ product.description }}</li>
         <form action="" method="post">
            <input type="hidden" value="{{ product.name }}" id="prod_name" name="Product Quantity">
            <label for="Quantity">Quantity</label>
            <div class="input-group text-center mb-3" style="width:130px;">
               <button class="input-group-text decrement-btn">-</button>
               <input type="text" name="quantity" class="form-control qty-input text-center" value="1" id="quantity-btn">
               <button class="input-group-text increment-btn">+</button>
            </div>
            {% csrf_token %}<button class="btn btn-danger addToCartBtn" id="addToCartBtn">Add to cart</button>
         </form>
      </div>
      {% endfor %}
   </ul>
</div>
{% endblock %}

另外，我建议发布产品ID胜于其名称。