两种方式实现

1 使用最后时间判断

class Throttle(MiddlewareMixin):

    VIEW_LIMIT = {}

    def process_request(self,requst):

        # 限制访问次数

        # 1分钟内只允许访问3次

        remote_addr = requst.META['REMOTE_ADDR']

        print(self.VIEW_LIMIT)

        if remote_addr not in self.VIEW_LIMIT:

            self.VIEW_LIMIT[remote_addr] = {

                "count":1,

                "limit_time": datetime.datetime.now()+datetime.timedelta(minutes=1), #下一分钟

            }

            # print(self.VIEW_LIMIT)

        else:

            # 访问次数判断

            count = self.VIEW_LIMIT[remote_addr]["count"];

            # count = count+1

            # self.VIEW_LIMIT[remote_addr]["count"] = count

            # print(self.VIEW_LIMIT)

            # 判断时间和次数

            now = datetime.datetime.now()

            if count>3 and now<=self.VIEW_LIMIT[remote_addr]["limit_time"]:

                # 限制访问

                print("拒绝访问")

                return HttpResponse("访问限制!")

            else:

                if now>self.VIEW_LIMIT[remote_addr]["limit_time"]:

                    # 重新设置ip 访问

                    self.VIEW_LIMIT[remote_addr] = {

                        "count": 1,

                        "limit_time": datetime.datetime.now() + datetime.timedelta(minutes=1),

                    }

                else:

                    # 一分钟内, 次数+1

                    self.VIEW_LIMIT[remote_addr]['count'] = count+1

2 使用访问历史判断

import time

class HistoryThrottle(MiddlewareMixin):

    VISIT_DICT = {}

    def process_request(self,request):

        # 记录访问历史

        remote_ip = request.META.get('REMOTE_ADDR')

        if not self.VISIT_DICT.get(remote_ip):

            self.VISIT_DICT[remote_ip]= []

        history = self.VISIT_DICT[remote_ip]

        history_new = []

        now =time.time()

        for k in history:

            if now-k<=60:

                history_new.append(k)

        #清空数组

        del history[:]

        history_new.append(now)

        self.VISIT_DICT[remote_ip] = history_new

        if len(history_new)>3:

            print("拒绝访问")

            return HttpResponse("访问限制!")



        print(self.VISIT_DICT)