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 responsehelp(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.