obj.set_cookie(key,value,...)

#設(shè)置cookie
def login(request):
 if request.method=="POST":
  user=request.POST.get("user")
  pwd=request.POST.get("pwd")
  user=UserInfo.objects.filter(user=user,pwd=pwd).first()
  if user:
   obj=HttpResponse("登陸成功")
   obj.set_cookie("is_login",True)
   return obj
 return render(request,"login.html")

#獲取cookie并進(jìn)行判斷
def index(request):
 ret=request.COOKIES.get("is_login")
 if not ret:
  return redirect("/login/")
 return render(request,"index.html")

obj.delete_cookie("is_login")

def books(request):
 is_login=request.COOKIES.get("is_login")
 if not is_login:
  return_url=request.path_info #判斷是否有cookies沒有則記錄到return_url
  if return_url:
   return redirect("{}?return_url={}".format("/login/",return_url)) #將return_url加到路徑后面返回到login頁(yè)面，等到用戶驗(yàn)證登陸后直接跳轉(zhuǎn)到這個(gè)頁(yè)面
 book_list=Book.objects.all()
 return render(request,"books.html",locals())
def login(request):
 error_msg=''
 if request.method=="POST":
  user=request.POST.get("user")
  pwd=request.POST.get("pwd")
  user_au=UserInfo.objects.filter(user=user,pwd=pwd).first() #從數(shù)據(jù)庫(kù)中驗(yàn)證用戶
  if user_au:
   return_url=request.GET.get('return_url') 
   if return_url:　　　　　　　　　　　　　　　　　　　　　　　　#判斷是否有return_url
    ret=redirect(return_url)
   else:
    ret=HttpResponse("進(jìn)入其他頁(yè)面")    
   ret.set_cookie("is_login",True)      #驗(yàn)證成功則設(shè)置cookies
   return ret
  error_msg="用戶名或者密碼錯(cuò)誤"
 return render(request,"login.html",locals())

def logout(request):
 ret=redirect("/login/")
 ret.delete_cookie('is_login')
 return ret

# 獲取、設(shè)置、刪除Session中數(shù)據(jù)
request.session['k1'] #獲取
request.session.get('k1',None) #獲取
request.session['k1'] = 123 #設(shè)置
request.session.setdefault('k1',123) # 存在則不設(shè)置
del request.session['k1']

# 所有 鍵、值、鍵值對(duì)
request.session.keys()
request.session.values()
request.session.items()
request.session.iterkeys()
request.session.itervalues()
request.session.iteritems()
# 會(huì)話session的key
request.session.session_key
# 將所有Session失效日期小于當(dāng)前日期的數(shù)據(jù)刪除
request.session.clear_expired()
# 檢查會(huì)話session的key在數(shù)據(jù)庫(kù)中是否存在
request.session.exists("session_key")
# 刪除當(dāng)前會(huì)話的所有Session數(shù)據(jù)
request.session.delete() #刪除reponse sessionid，用戶已經(jīng)訪問(wèn)不了了，但是可以看到 request sessionid
# 刪除當(dāng)前的會(huì)話數(shù)據(jù)并刪除會(huì)話的Cookie。
request.session.flush() # reponse 和 request sessionid都看不到
 這用于確保前面的會(huì)話數(shù)據(jù)不可以再次被用戶的瀏覽器訪問(wèn)
 例如，django.contrib.auth.logout() 函數(shù)中就會(huì)調(diào)用它。
# 設(shè)置會(huì)話Session和Cookie的超時(shí)時(shí)間
request.session.set_expiry(value)
 * 如果value是個(gè)整數(shù)，session會(huì)在些秒數(shù)后失效。
 * 如果value是個(gè)datatime或timedelta，session就會(huì)在這個(gè)時(shí)間后失效。
 * 如果value是0,用戶關(guān)閉瀏覽器session就會(huì)失效。
 * 如果value是None,session會(huì)依賴全局session失效策略。

def books(request):
 # is_login=request.COOKIES.get("is_login")
 is_login=request.session.get("is_login")
 if not is_login:
  return_url=request.path_info
  if return_url:
   return redirect("{}?return_url={}".format("/login/",return_url))
 book_list=Book.objects.all()
 return render(request,"books.html",locals())
def login(request):
 error_msg=''
 if request.method=="POST":
  user=request.POST.get("user")
  pwd=request.POST.get("pwd")
  user_au=UserInfo.objects.filter(user=user,pwd=pwd).first()
  if user_au:
   return_url=request.GET.get('return_url')
   if return_url:
    ret=redirect(return_url)
   else:
    ret=HttpResponse("進(jìn)入其他頁(yè)面")
   # ret.set_cookie("is_login",True)
   request.session['is_login']=True
   return ret
  error_msg="用戶名或者密碼錯(cuò)誤"
 return render(request,"login.html",locals())
def logout(request):
 ret=redirect("/login/")
 # ret.delete_cookie('is_login')
 request.session.delete() #刪除Reponse sessionID
 # request.session.flush() #刪除Reponse sessionID和Request sessionID
 return ret

from django.conf import settings,global_settings
通過(guò) global_settings查看到下面信息
############
# SESSIONS #
############

# Cache to store session data if using the cache session backend.
SESSION_CACHE_ALIAS = 'default'
# Cookie name. This can be whatever you want.
SESSION_COOKIE_NAME = 'sessionid'
# Age of cookie, in seconds (default: 2 weeks).
SESSION_COOKIE_AGE = 60 * 60 * 24 * 7 * 2
# A string like ".example.com", or None for standard domain cookie.
SESSION_COOKIE_DOMAIN = None
# Whether the session cookie should be secure (https:// only).
SESSION_COOKIE_SECURE = False
# The path of the session cookie.
SESSION_COOKIE_PATH = '/'
# Whether to use the non-RFC standard httpOnly flag (IE, FF3+, others)
SESSION_COOKIE_HTTPONLY = True
# Whether to save the session data on every request.
SESSION_SAVE_EVERY_REQUEST = False
# Whether a user's session cookie expires when the Web browser is closed.
SESSION_EXPIRE_AT_BROWSER_CLOSE = False
# The module to store session data
SESSION_ENGINE = 'django.contrib.sessions.backends.db'
# Directory to store session files if using the file session module. If None,
# the backend will use a sensible default.
SESSION_FILE_PATH = None
# class to serialize session data
SESSION_SERIALIZER = 'django.contrib.sessions.serializers.JSONSerializer'

 

SESSION_ENGINE = 'django.contrib.sessions.backends.db' # 引擎（默認(rèn)）

SESSION_ENGINE = 'django.contrib.sessions.backends.cache' # 引擎
SESSION_CACHE_ALIAS = 'default'       # 使用的緩存別名（默認(rèn)內(nèi)存緩存，也可以是memcache），此處別名依賴緩存的設(shè)置

SESSION_ENGINE = 'django.contrib.sessions.backends.file' # 引擎
SESSION_FILE_PATH = None         # 緩存文件路徑，如果為None，則使用tempfile模塊獲取一個(gè)臨時(shí)地址tempfile.gettempdir()

SESSION_ENGINE = 'django.contrib.sessions.backends.cached_db'  # 引擎

SESSION_ENGINE = 'django.contrib.sessions.backends.signed_cookies' # 引擎