本文实例讲述了Django项目开发中cookies和session的常用操作。分享给大家供大家参考，具体如下：
COOKIES操作
检查cookies是否存在:
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request.COOKIES.has_key('<cookie_name>') |
获取cookies:
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request.COOKIES.get('visits', '1')if 'last_visit' in request.COOKIES: request.COOKIES['last_visit'] |
设置cookies:
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response.set_cookie('<cookie_name>', value) |
SESSION操作
获取session:
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fav_color = request.session.get('fav_color', 'red')fav_color = request.session['fav_color'] |
设置session:
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request.session['visits'] = visits |
删除session:
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del request.session['fav_color'] |
如果给出的key 在会话中不存在，将抛出 KeyError。
判断包含session:
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'fav_color' in request.session |
清除session数据库
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python manage.py clearsessions |
附：Django基于自定义cookies 的登录，注册，退出功能示例：
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#注册def regist(req): if req.method == 'POST': uf = UserForm(req.POST) if uf.is_valid(): #获得表单数据 username = uf.cleaned_data['username'] password = uf.cleaned_data['password'] #添加到数据库 User.objects.create(username= username,password=password) return HttpResponse('regist success!!') else: uf = UserForm() return render_to_response('regist.html',{'uf':uf}, context_instance=RequestContext(req))#登陆def login(req): if req.method == 'POST': uf = UserForm(req.POST) if uf.is_valid(): #获取表单用户密码 username = uf.cleaned_data['username'] password = uf.cleaned_data['password'] #获取的表单数据与数据库进行比较 user = User.objects.filter(username__exact = username,password__exact = password) if user: #比较成功，跳转index response = HttpResponseRedirect('/online/index/') #将username写入浏览器cookie,失效时间为3600 response.set_cookie('username',username,3600) return response else: #比较失败，还在login return HttpResponseRedirect('/online/login/') else: uf = UserForm() return render_to_response('login.html',{'uf':uf},context_instance=RequestContext(req))#登陆成功def index(req): username = req.COOKIES.get('username','') return render_to_response('index.html' ,{'username':username})#退出def logout(req): response = HttpResponse('logout !!') #清理cookie里保存username response.delete_cookie('username') return response |
希望本文所述对大家基于Django框架的Python程序设计有所帮助。
原文链接：https://blog.csdn.net/win_turn/article/details/52997641
