scrapy https proxy 403错误-在curl中工作

import random
from scrapy.downloadermiddlewares.httpproxy import HttpProxyMiddleware

class MyProxyMiddleware(HttpProxyMiddleware):
    def __init__(self, proxy_list):
        self.proxy_list = proxy_list

    @classmethod
    def from_crawler(cls, crawler):
        return cls(crawler.settings.getlist('PROXY_LIST'))

    def process_request(self, request, spider):
        proxy = random.choice(self.proxy_list)
        request.meta['proxy'] = proxy

DOWNLOADER_MIDDLEWARES = {
    'your_project_name.middlewares.MyProxyMiddleware': 543,
}

PROXY_LIST = [
    'http://proxy1.example.com:8888',
    'http://proxy2.example.com:8888',
    'http://proxy3.example.com:8888',
    # 添加更多的代理地址
]