1.写了个简单的from表单登陆跳转，提交之后登陆页面的路径重复报错404，
1.1）urls:
from django.contrib import admin
from django.urls import path ,re_path
from app01 import views
urlpatterns = [
path('admin/', admin.site.urls),
re_path('^login.html/$',views.login),
re_path('^indexUser.html/$',views.index),
]
1.2)views代码：
def login(req):
message=''
print('userName',req.method)
print('url'+req.path)
# if req.method == "POST":
# userName = req.POST.get("userName")
# pwd = req.POST.get("pwd")
# if userName=='mufenglin' and pwd =='mufenglin':
# res = redirect('/index.html')
# res.set_cookie('userName',userName)
# return res
# else:
# message='用户名或者密码错误'
return render(req,"login.html",{'message':message})
def index(req):
#如果用户已经登陆，获取用户名
#否则返回登陆页面
print(req.COOKIES.get("userName"))
if req.COOKIES.get("csrf_token"):
userName = 'gongsunyang'
return render(req,"indexUser.html",{'userName':userName})
else:
return redirect("/login.html")
1.3form表单
<!DOCTYPE HTML>
<html>
<head>
<title>Home</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<form action="login.html" method="post">
{% csrf_token %}
<div>
<label for="user">用户名：</label>
<input id ="user" type="text" name="userName"/>
</div>
<div>
<label for="password">密码： </label>
<input id="pwd" type="password" name="pwd"/>
</div>
<div>
<input type="submit" value="登陆"/>
<span style="color:#ffd155;">{{ message }}</span>
</div>
</form>
</body>
</html>
2.操作步骤：
3.报错截图
