django写用户登录判定并跳转制定页面的实例
1. 首先看要设置登陆的界面 book/view.py
@user_util.my_login #相当于 select_all=my_login(select_all)
def select_all(request):
# 查询所有的书
book_list = BookInfo.objects.all()
# 返回
return render(request, 'book/book_list.html', {'book_list': book_list})
@user_util.my_login #相当于 select_by_id=my_login(select_by_id)
def select_by_id(request,book_id):
bookinfo=BookInfo.objects.get(id=book_id)
return render(request,'book/book_detail.html',{'bookinfo':bookinfo})
@user_util.my_login 是在utils/user_utils.py里面写的装饰器
使用session判定是否登录：login_user_id = args[0].session.get(‘login_user_id')
#登陆用的装饰器
def my_login(func):
def inner(*args,**kwargs):
login_user_id = args[0].session.get('login_user_id')
if login_user_id:
return func(*args,**kwargs)
else:
return redirect(reverse('user:login'))
return inner
2. 设置登录模块的界面
设置session键值对进行存储： request.session[‘login_user_id']=user[0].id
def login(request):
#获取cookie
remember_user_name=request.COOKIES.get('remember_user_name','')
return render(request, "user/login.html",{'remember_user_name':remember_user_name})
def login_handler(request):
# 判断请求方式
if request.method == "GET":
request_info = request.GET
else:
request_info = request.POST
# 获取属性
user_name = request_info.get("user_name",'').strip()
user_pwd = request_info.get("user_pwd",'').strip()
remember = request_info.get("remember")
user_pwd = my_md5(user_pwd)
user=User.objects.filter(name=user_name, pwd=user_pwd)
#print(user[0].id)
# 查询
if len(user) != 0:
#将登陆信息保存到session
request.session['login_user_id']=user[0].id
resp=HttpResponseRedirect(reverse("book:index"))
#记住用户名
if remember=='1':
resp.set_cookie('remember_user_name',user_name,3600*24*7)
else:
resp.set_cookie('remember_user_name',user_name,0)
return resp
# 转发
#return book_views.index(request)
# 重定向
#return HttpResponseRedirect(reverse("book:index"))
else:
return HttpResponseRedirect(reverse("user:login"))
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