django-添加文章&admin后台管理
通过表单形式与后端交互：
前端表单：
add.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>添加文章</title>
</head>
<body>
<form action="/add/" method="post" enctype="multipart/form-data">#上传图片时，一定要加上enctype属性
<p>title :<input name="title"></p>
</p>content :<input name="content"></p>
</p><select name="nav_id">
{% for nav in replace %}
<option value="{{ nav.id }}">{{ nav.name }}</option>
{% endfor %}
</select></p>
</p><input type="file" name="img"></p>
</p><input type="submit" value="提交"></p>
</form>
</body>
</html>注意：
settings.py
MIDDLEWARE = [
‘django.middleware.security.SecurityMiddleware‘,
‘django.contrib.sessions.middleware.SessionMiddleware‘,
‘django.middleware.common.CommonMiddleware‘,
# ‘django.middleware.csrf.CsrfViewMiddleware‘, #是防止重复提交，若访问报403禁止访问，注释掉这行数据；或者在add文件中加上{%csrf_token%}
‘django.contrib.auth.middleware.AuthenticationMiddleware‘,
‘django.contrib.messages.middleware.MessageMiddleware‘,
‘django.middleware.clickjacking.XFrameOptionsMiddleware‘,
]后端：
views.py
def add_article(request):
#若方法是get,则返回添加页
if request.method == ‘GET‘:
return render(request,‘add.html‘)
#若方式是post,则获取数据，放到数据库
else:
title = request.POST.get(‘title‘)
content = request.POST.get(‘content‘)
nav_id = request.POST.get(‘nav_id‘)
img = request.FILES.get(‘img‘)
models.Article.objects.create(title=title,content=content,
nav_id=nav_id,img=img)#把数据存到数据库
return HttpResponseRedirect(‘/index‘)#提交后，页面跳转重定向urls.py
urlpatterns = [
path(‘admin/‘, admin.site.urls),
path(‘index/‘, views.index),
path(‘info/<int:id>‘, views.info),
path(‘nav/<int:id>‘, views.nav_article),
path(‘add/‘, views.add_article)
]admin后台管理
1、添加管理员账号：python manage.py createsuperuser （命令），也可在pycharm中快捷操作
2、