def init_session(self):
prefix = self.settings.get('session_prefix')
expires = self.settings.get('session_expires')
self.cookie_name = self.settings.get('cookie_name')
self.sid = self.get_secure_cookie(self.cookie_name)
self.session = Session(prefix, self.sid, expires, self.redis)
self.uid = self.session.get('uid')
class BaseHandler(tornado.web.RequestHandler):
# 初始化函数
def initialize(self):
# 当前请求时间
self.time = int(time.time())
# Current URL
self.url = self.get_route()
# Session
self.init_session()
# Version
self.app_version = self.application.__version__
# 后面的方法如果重写on_finish方法，需要调用_on_finish
def _on_finish(self):
# 更新Session
self.session.save()
# 请求逻辑处理结束时关闭数据库连接，如果不关闭可能会造成MySQL Server has gone away 2006错误
self.db.close()
# 重载on_finish
def on_finish(self):
self._on_finish()
# 重载write_error方法
def write_error(self, status_code, **kwargs):
title = "%s - %s" % (status_code, self._reason)
if status_code == 404: # 捕获404
self.render('page/error.html', title=title)
elif status_code == 500: # 500可以正常捕获，404好像不行
#print self.settings.get("serve_traceback")
msg = ''
if 'exc_info' in kwargs:
for i in kwargs['exc_info']:
#print type(i)
msg += "<p>%s</p>" % str(i)
self.render('page/error.html',
title=title,
code=status_code,
msg=msg)
else:
self.render('page/error.html',
title=title,
code=status_code,
msg=status_code)
# Log Instance
@property
def log(self):
return self.application.log
# 数据库
@property
def db(self):
return self.application.db
# Redis
@property
def redis(self):
return self.application.redis
# 返回Json
def jsonReturn(self, data):
self.set_header('Content-Type', 'application/json')
self.write(data)
# 格式化时间戳
def format_time(self, timestamp=None, format='%Y-%m-%d %H:%M:%S'):
return time.strftime(format, time.localtime(timestamp))
# Session初始化
def init_session(self):
prefix = self.settings.get('session_prefix')
expires = self.settings.get('session_expires')
self.cookie_name = self.settings.get('cookie_name')
self.sid = self.get_secure_cookie(self.cookie_name)
self.session = Session(prefix, self.sid, expires, self.redis)
self.uid = self.session.get('uid')
# 重写get_current_user
def get_current_user(self):
if not self.session.isGuest and self.session.data:
return self.session.data
else:
return None
# MD5计算
def md5(self, text):
s = hashlib.md5()
s.update(text)
return s.hexdigest()
# 获取当前路由
def get_route(self):
uri = self.request.uri.split('?')
return uri[0]
# 重写获取用户语言的方法
def get_user_locale(self):
#user_lang = self.get_argument('lang', 'zh')
default_lang = self.settings.get('default_lang')
if not self.session.isGuest: # Login
user_lang = self.session.get('lang')
else:
user_lang = default_lang # Default Language
if user_lang in ['en_US', 'zh_CN']:
return tornado.locale.get(user_lang)
else:
return tornado.locale.get(default_lang) # Default Language
# Nav UI
def get_nav(self):
return Nav().gen_nav(self.url)