django:request

g dfn HttpRequest对象拥有的属性和方法：

        self.GET = QueryDict(mutable=True)  #GET请求的参数字典集合
        self.POST = QueryDict(mutable=True)  #POST请求的参数字典集合
        self.COOKIES = {}  #获取cookie
        self.META = {}  #获取META
        self.FILES = MultiValueDict()

        self.path = ''  #获取请求路径
        self.path_info = ''
        self.method = None  #请求方法类型
        self.resolver_match = None
        self._post_parse_error = False
        self.content_type = None  #获取content_type
        self.content_params = None

get_host(self):  #获取host
get_port(self)：#获取端口port
get_full_path(self, force_append_slash=False): #获取全路径