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')

def login ():

username = request .forms .get('username ')

password = request .forms .get('password ')

if check_user_credentials(username, password):

response .set_cookie("account", username, secret= 'some-secret-key')

return "Welcome %s!You are now logged in." % username

else :

return "Login failed."

@route('/restricted')

def restricted_area ():

username = request .get_cookie("account", secret= 'some-secret-key')

if username:

return "Hello %s.Welcome back." % username

虽然文档上没有但是还有一种操作cookie的方式:

from bottle import request, response

@route('/login', method="POST")

def login():

user = request.POST['user']

passwd = request.POST['passwd']

if check_user_right(user,passwd):

response.COOKIES['account'] = user

else:

pass

@route('/admin')

def admin():

user = request.COOKIES['user']

if user:

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+#')

def article_show(aid):

db = dbconn.ConnDB()

artid = int(aid)

# 获取客户端ip

remoteip = request.environ.get('REMOTE_ADDR')

artcookie = remoteip+'ip'+aid

print request.COOKIES.keys()

# 判断cookie是否存在

if artcookie in request.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())

return template('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:

from bottle import response

help(response.set_cookie)

help的结果其中有两个参数一个是path,和domain:

:param domain: the domain that is allowed to read the cookie.

(default: current domain)

:param path: limits the cookie to a given path (default: current path)

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:

from bottle import request, response

@route('/login', method="POST")

def login():

user = request.POST['user']

passwd = request.POST['passwd']

if check_user_right(user,passwd):

response.COOKIES['account'] = user

response.COOKIES['account']['path'] = '/admin'

else:

pass

@route('/admin')

def admin():

user = request.COOKIES['user']

这样我们就能在别的路径下访问我们设定的cookie.