Python的Bottle框架中获取制定cookie的教程
这两天为用bottle+mongodb写的一个项目加上登录功能,无奈怎么都获取不到保存的cookie,文档给出让我们这样操作cookie的代码片段:
@route('/login')
deflogin():
username=request.forms.get('username')
password=request.forms.get('password')
ifcheck_user_credentials(username,password):
response.set_cookie("account",username,secret='some-secret-key')
return"Welcome%s!Youarenowloggedin."%username
else:
return"Loginfailed."
@route('/restricted')
defrestricted_area():
username=request.get_cookie("account",secret='some-secret-key')
ifusername:
return"Hello%s.Welcomeback."%username
虽然文档上没有但是还有一种操作cookie的方式:
frombottleimportrequest,response
@route('/login',method="POST")
deflogin():
user=request.POST['user']
passwd=request.POST['passwd']
ifcheck_user_right(user,passwd):
response.COOKIES['account']=user
else:
pass
@route('/admin')
defadmin():
user=request.COOKIES['user']
ifuser:
pass
但是无论我用哪种方式操作我都无法获取cookie,为什么呢.百思不得其解.但是我的一个处理文章点击率的提醒了我,代码如下:
@route('/archrives/:aid#\d+#')
defarticle_show(aid):
db=dbconn.ConnDB()
artid=int(aid)
#获取客户端ip
remoteip=request.environ.get('REMOTE_ADDR')
artcookie=remoteip+'ip'+aid
printrequest.COOKIES.keys()
#判断cookie是否存在
ifartcookieinrequest.COOKIES.keys():
#存在则更新有效时间
response.COOKIES[artcookie]=True
response.COOKIES[artcookie]['max-age']=500
else:
#不存在则更新文章查看次数
db.posts.update({"id":artid},{"$inc":{"views":1}})
#并设置cookie
response.COOKIES[artcookie]=True
response.COOKIES[artcookie]['max-age']=500
TEMPLATE['posts']=getArtList({"id":artid})
TEMPLATE.update(setTempVar())
returntemplate('article.html',TEMPLATE)
这里是可以正常获取到cookie的,而且代码没有任何区别.唯一的区别就是用户认证是跳转了页面.所以我help了一下:
frombottleimportresponse help(response.set_cookie)
help的结果其中有两个参数一个是path,和domain:
:paramdomain:thedomainthatisallowedtoreadthecookie. (default:currentdomain) :parampath:limitsthecookietoagivenpath(default:currentpath)
明显bottle的cookie默认只在当前路径下能读取的到,所以要别的页面读取到cookie我们的代码须改成如下:
frombottleimportrequest,response
@route('/login',method="POST")
deflogin():
user=request.POST['user']
passwd=request.POST['passwd']
ifcheck_user_right(user,passwd):
response.COOKIES['account']=user
response.COOKIES['account']['path']='/admin'
else:
pass
@route('/admin')
defadmin():
user=request.COOKIES['user']
这样我们就能在别的路径下访问我们设定的cookie.