使用scrapy和selenium在Json中迭代

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"videoCodecChangeCount": "0", "client": "native", "videoBandwidthLimitedResolution": "false", "audioSentPackets": "0", "hasVideo": "true", "hasAudio": "true", "videoCaptureQueueDelayMsPerS": "", "capturerOverusing": "0", "audioSentPacketsLost": "0", "videoFrameRate": "0", "peerPriority": "0", "p2p": "true", "videoWidthInput": "480", "videoSentPackets": "0", "component": "clientQos", "timestamp": 1584551998827, "_InternalId__": "3785297217147271e41f2d7a9d50be557b8d2a5087cb9c2", "dateParsed": "2020-03-18T10:19:58.827-07:00", "eventUuid": "b1afe45d-693c-11ea-bbb3-0a65297c9614", "videoPacketlossPercentage": 0, "audioPacketlossPercentage": 0, "packetlossPercentage": 0, "rtt": 402 }, { "messagingServer": "mantis007-pdx.tokbox.com", "streamId": "2ca0845c-d15f-40c0-bb5f-7f9e957dcd3d", "source": "https://consultas.mediclic.cl/citadoctor", "variation": "attempt", "payload": { "properties": { "audioFallbackEnabled": true, "classNames": "OT_root OT_publisher", "constraints": { "audio": true, "video": true }, "disableAudioProcessing": false, "enableRenegotiation": false, "enableStereo": false, "fitMode": "cover", "height": "160px", "insertDefaultUI": true, "insertMode": "replace", "mirror": true, "publishAudio": true, "publishVideo": true, "showControls": true, "width": "120px" } }, "clientInstanceId": "43e802f7-7931-4a34-bd6e-97bb105437b6", "action": "publish", "buildHash": "08194dfcf", "mediaServerName": "mantis007-pdx.tokbox.com", "version": "v2.16.3", "widgetType": "publisher", "p2p": "true", "messagingUrl": "wss://mantis007-pdx.tokbox.com:443/rumorwebsocketsv2", "connectionId": "d0d8e546-0a95-49d0-b008-c5bb40057244", "guid": "bbabaacb-6799-42a0-a5e6-0649f6b324bc", "apiServer": "https://api-standard.opentok.com", "clientSystemTime": "1584552311587", "component": "clientEvent", "timestamp": 1584552005073, "_InternalId__": "378529728450675588464a099b2e38ce0b738f1c33a0a5a", "dateParsed": "2020-03-18T10:20:05.073-07:00", "eventUuid": "b56904c2-693c-11ea-9fe9-0ef5f4d130be", "eventName": "publish_attempt" }, { "callType": "publisherCreated", "component": "serverEvent", "connectionId": "d0d8e546-0a95-49d0-b008-c5bb40057244", "connectionData": "doctor%3Da0H0P00000Rel4R", "eventName": "server_publisherCreated", "minBitrate": "0", "streamId": "2ca0845c-d15f-40c0-bb5f-7f9e957dcd3d", "source": "camera", "timestamp": 1584552006121, "widgetType": "publisher" }, { "messagingServer": "mantis007-pdx.tokbox.com", "streamId": "2ca0845c-d15f-40c0-bb5f-7f9e957dcd3d", "source": "https://consultas.mediclic.cl/citadoctor", "variation": "success", "payload": { "audioInputDeviceCount": 2, "audioInputDevices": [ { "deviceId": "default", "kind": "audioInput", "label": "Predeterminado - Internal Microphone (Built-in)" }, { "deviceId": "69cf5fb06a7aacb51e1dff3197c293214851902de6a8026f92d5e16d7bdca4bb", "kind": "audioInput", "label": "Internal Microphone (Built-in)" } ], "selectedAudioInputDeviceId": "default", "videoInputDeviceCount": 0, "videoInputDevices": [] }, "clientInstanceId": "43e802f7-7931-4a34-bd6e-97bb105437b6", "action": "publish", "buildHash": "08194dfcf", "mediaServerName": "mantis007-pdx.tokbox.com", "version": "v2.16.3", "widgetType": "publisher", "p2p": "true", "messagingUrl": "wss://mantis007-pdx.tokbox.com:443/rumorwebsocketsv2", "connectionId": "d0d8e546-0a95-49d0-b008-c5bb40057244", "guid": "bbabaacb-6799-42a0-a5e6-0649f6b324bc", "apiServer": "https://api-standard.opentok.com", "attemptDuration": "1200", "clientSystemTime": "1584552312786", "component": "clientEvent", "timestamp": 1584552006273, "_InternalId__": "378529728455283d431c99cc1b56ccad635caee5716fefa", "dateParsed": "2020-03-18T10:20:06.273-07:00", "eventUuid": "b6202a11-693c-11ea-9fe9-0ef5f4d130be", "eventName": "publish_success" }, { "callType": "subscriberCreated", "component": "serverEvent", "connectionId": "9093E2EF-E407-4F9B-A028-E233123C3D81", "connectionData": "paciente%3Da0H0P00000Rel4R", "eventName": "server_subscriberCreated", "streamId": "2ca0845c-d15f-40c0-bb5f-7f9e957dcd3d", "timestamp": 1584552006379, "widgetType": "subscriber" } ]

def parse(self, response): json_metrics = json.loads(response.body)['rows'] for a in json_metrics: try: if 'paciente' in a['connectionData']: valor = a.get('connectionId') except: print('exception1') for b in json_metrics: try: for key, value in b.items(): if key == 'connectionId' or key == 'remoteConnectionId' and value == valor or value is not None and 'connectionData' not in b: rtt = b.get('rtt') yield{ 'rtt': rtt } except: print('exception2')

1条回答

网友

1楼 · 发布于 2024-05-14 09:16:44

我相信，这是一个复制粘贴错误-您在JSON末尾缺少“]}”

其次，尝试以下代码：

json_info = json.loads(response.body)
total = json_info['total']
print (total)

此外，以下是如何获取“网络状态”：

for x in json_info['rows']:
    try:
        # try..except...since not all rows elements have 'networkStatus'
        print (x['networkStatus'])
    except:
        pass

下面是使用re.findall的另一种方法）：

network_statuses = re.findall( r"networkStatus.:.([^\"]+)", response.body, re.M)
print ( ",".join(network_statuses) )

这将打印“WiFi，WiFi_IPV4”-注意，这种方法不使用JSON转换，而是直接使用“response.body”

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