接入vnpy_binance，连接报错

[zjokerxxx]

基础环境：海外云服务，操作系统为windows server2019
软件版本：vnpy_binance==2021.10.27
操作步骤：打开Vntrader，点击左上角System，点击Connect，填写key和secret，服务器选择TESTNET，代理地址为空，代理端口为0，点击Connect
报错如下：
`
The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\vnpy_rest\rest_client.py"
, line 274, in _process_request
response: Response = await self._get_response(request)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\vnpy_rest\rest_client.py"
, line 256, in _get_response
cr: ClientResponse = await self.session.request(
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiohttp\client.py", line
574, in _request
conn = await self._connector.connect(
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiohttp\connector.py", li
ne 544, in connect
proto = await self._create_connection(req, traces, timeout)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiohttp\connector.py", li
ne 911, in _create_connection
_, proto = await self._create_direct_connection(req, traces, timeout)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiohttp\connector.py", li
ne 1235, in _create_direct_connection
raise last_exc
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiohttp\connector.py", line 1204, in _create_direct_connection
transp, proto = await self._wrap_create_connection(
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\aiohttp\connector.py", line 994, in _wrap_create_connection
raise ClientConnectorCertificateError(req.connection_key, exc) from exc
aiohttp.client_exceptions.ClientConnectorCertificateError: Cannot connect to host testnet.binancefuture.com:443 ssl:True [SSLCertVerificationError: (1, '[SSL: CERTIFICATE
_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:997)')]
`

[xldistance]

改rest_client.py里面的代码

    async def _get_response(self, request: Request) -> Response:
        """
        发送请求到服务器，并返回处理结果对象
        """
        request = self.sign(request)
        url = self._make_full_url(request.path)
        if not self.session:
            # 限制超时300秒，连接池数量300
            timeout = ClientTimeout(total=300)
            connector = TCPConnector(limit=300, verify_ssl=False)
            self.session: ClientSession = ClientSession(trust_env=True, timeout=timeout, connector=connector)
        try:
            async with self.session.request(
                    request.method,
                    url,
                    headers=request.headers,
                    params=request.params,
                    data=request.data,
                    proxy=self.proxy,
                    verify_ssl=False,
            ) as client:
                text: str = await client.text()
                status_code = client.status
        except Exception as error:
            LOG_EXCEPTION(f"交易接口：{self.gateway_name}，rest api收到错误请求回报，错误信息：{error}")
            save_connection_status(self.gateway_name, False)
            request.response = Response(0, "")
            return request.response

        request.response = Response(status_code, text)
        return request.response

[zjokerxxx]

问题已经解决，问题原因是因为SSL证书验证问题，币安使用的根证书是亚马逊的，而非我们常用的签发机构，所以只需要下载亚马逊的根证书，并安装在机器上即可解决SSL证书校验问题。