Django项目点击按钮出现页面URL找不到错误，请求排查

问题现象 #

点击网站按钮时触发404错误，页面提示找不到指定URL：

跟着YouTube教程开发项目，怀疑URL配置存在问题，但无法定位具体错误点。

相关代码 #

urls.py #

from django.urls import path
from . import views


urlpatterns = [
    path('login/', views.loginPage, name="login"),
    path('logout/', views.logoutUser, name="logout"),
    path('register/', views.registerPage, name="register"),

    path('', views.home, name='home'),
    path('room/<str:pk>/', views.room, name="room"),
    path('profile/<str:pk>',views.userProfile,name="user-profile"),

    path('create-room/', views.createRoom, name="create-room"),
    path('update-room/<str:pk>/', views.updateRoom, name="update-room"),
    path('delete-room/<str:pk>/', views.deleteRoom, name="delete-room"),
    path('delete-message/<str:pk>/', views.deleteMessage, name="delete-message"),
]

views.py #

from django.shortcuts import render, redirect
from django.db.models import Q
from django.http import HttpResponse
from django.contrib.auth.decorators import login_required
from django.contrib import messages
from django.contrib.auth.models import User
from django.contrib.auth import authenticate,login,logout
from .models import Room, Topic, Message
from django.contrib.auth.forms import UserCreationForm
from .forms import RoomForm


def loginPage(request):
    page = 'login'
    if request.user.is_authenticated:
        return redirect('home')

    if request.method == 'POST':
        username = request.POST.get('username').lower()
        password = request.POST.get('password')

        try:
            user = User.objects.get(username=username)
        except:
            messages.error(request,'User does not exist')

        user = authenticate(request, username=username, password=password)

        if user is not None:
            login(request, user)
            return redirect('home')
        else:
            messages.error(request,'Username OR password does not exit')

    context = {'page': page}
    return render(request, 'base/login_register.html', context)

def logoutUser(request):
    logout(request)
    return redirect('home')


def registerPage(request):
    form = UserCreationForm()

    if request.method == 'POST':
        form = UserCreationForm(request.POST)
        if form.is_valid():
            user = form.save(commit=False)
            user.username = user.username.lower()
            user.save()
            login(request, user)
            return redirect('home')
        else:
            messages.error(request,'An error occurred during registration')

    return render(request, 'base/login_register.html',{'form':form})


def home(request):
    q=request.GET.get('q') if request.GET.get('q')!= None else ''

    rooms = Room.objects.filter(
        Q(topic__name__icontains=q) |
        Q(name__icontains=q) |
        Q(description__icontains=q)
    )

    topics = Topic.objects.all()
    room_count = rooms.count()
    room_messages = Message.objects.all()

    context = {'rooms': rooms, 'topics' : topics,
               'room_count' : room_count,'room_messages': room_messages}

    return render(request, 'base/home.html', context)

def room(request,pk):
    room = Room.objects.get(id=pk)
    room_messages = room.message_set.all()
    participants = room.participants.all()
    if request.method == 'POST':
        message = Message.objects.create(
            user = request.user,
            room=room,
            body=request.POST.get('body')
        )
        room.participants.add(request.user)
        return redirect('room',pk=room.id)

    context = {'room': room,'room_messages':room_messages,
               'participants': participants}
    return render(request, 'base/room.html', context)


def userProfile(request, pk):
    user = User.objects.get(id=pk)
    context={'user':user}
    return render(request,'base/room.html',context)

@login_required(login_url='login')
def createRoom(requset):
    form = RoomForm
    if requset.method == 'POST':
        form = RoomForm(requset.POST)
        if form.is_valid():
            form.save()
            return redirect('home')

    context = {'form': form}
    return render(requset, 'base/room_form.html',context)

@login_required(login_url='login')
def updateRoom(request,pk):
    room = Room.objects.get(id=pk)
    form = RoomForm(instance=room)

    if request.user != room.host:
        return HttpResponse('Your are not allowed here!!!')

    if request.method == 'POST':
        form = RoomForm(request.POST, instance=room)
        if form.is_valid():
            form.save()
            return redirect('home')

    context = {'form': form}
    return render(request,'base/room_form.html', context)

@login_required(login_url='login')
def deleteRoom(request, pk):
    room = Room.objects.get(id=pk)

    if request.user != room.host:
        return HttpResponse('Your are not allowed here!!!')

    if request.method == 'POST':
        room.delete()
        return redirect('home')
    return render(request,'base/delete.html',{'obj': room})


@login_required(login_url='login')
def deleteMessage(request, pk):
    message = Room.objects.get(id=pk)

    if request.user != message.host:
        return HttpResponse('Your are not allowed here!!!')

    if request.method == 'POST':
        message.delete()
        return redirect('home')
    return render(request,'base/delete.html',{'obj': message})

问题排查方向 #

• 视图参数拼写错误：createRoom视图的参数写成了requset（少一个字母e），导致请求无法正确匹配视图，触发404，需改为request。
• 数据模型查询错误：deleteMessage视图中错误用Room.objects.get(id=pk)获取消息，应改为Message.objects.get(id=pk)；同时确认Message模型是否存在host字段，若不存在会引发异常导致页面异常。
• URL路径一致性：检查模板中按钮跳转的URL是否与urls.py配置匹配，比如profile/<str:pk>末尾无斜杠，若模板用硬编码路径需注意是否多写斜杠；模板中应尽量用{% url 'url-name' 参数 %}的方式生成路径，避免硬编码错误。
• 模板跳转逻辑：userProfile视图返回的是base/room.html模板，检查该模板内是否存在错误的URL跳转链接。
• 根URL配置：确认项目根urls.py是否正确包含了当前app的URL配置。

若上述排查未解决问题，可以提供模板文件或错误页面显示的具体URL路径，进一步定位问题。

内容的提问来源于stack exchange，提问作者Игорь.К FK