Question

我已尝试在ios中实现mqtt，但我在发布mqttDidDisconnect时收到错误：＆＃34; Socket由远程peer＆＃34;关闭。是服务器上的问题还是发送请求的问题？

deletegate代码

func mqttDidPing(_ mqtt: CocoaMQTT) {
    print("mqttDidPing")
}

func mqttDidReceivePong(_ mqtt: CocoaMQTT) {
    print("mqttDidReceivePong")

}

func mqtt(_ mqtt: CocoaMQTT, didPublishAck id: UInt16) {
    print("didPublishAck : \(id)")
}

func mqtt(_ mqtt: CocoaMQTT, didPublishComplete id: UInt16) {
    print("didPublishComplete: \(id)")
}

func mqtt(_ mqtt: CocoaMQTT, didSubscribeTopic topic: String) {
    print("didSubscribeTopic: \(topic)")
}

func mqtt(_ mqtt: CocoaMQTT, didUnsubscribeTopic topic: String) {
    print("didUnsubscribeTopic: \(topic)")
}

func mqttDidDisconnect(_ mqtt: CocoaMQTT, withError err: Error?) {
    print("mqttDidDisconnect: \(err?.localizedDescription ?? "")")
}

func mqtt(_ mqtt: CocoaMQTT, didConnectAck ack: CocoaMQTTConnAck) {
    print("didConnectAck: \(ack)")
}

func mqtt(_ mqtt: CocoaMQTT, didPublishMessage message: CocoaMQTTMessage, id: UInt16) {
    print("didPublishMessage: \(message) and \(id)")
}

func mqtt(_ mqtt: CocoaMQTT, didReceiveMessage message: CocoaMQTTMessage, id: UInt16) {
    print("didReceiveMessage: \(message) and \(id)")
}

func mqtt(_ mqtt: CocoaMQTT, didReceive trust: SecTrust, completionHandler: @escaping (Bool) -> Void) {
    print("didReceive trust")
}

Answer 1

您可以检查我的问题https://github.com/emqtt/CocoaMQTT/issues/252。本质上，问题与服务器端有关，并且使用EMQX代理（从https://github.com/emqx/emqx/releases/download/v3.0.0/emqx-centos7-v3.0.0.zip下载）成功建立了连接

Answer 2

删除mqtt.willMessage = CocoaMQTTWill（topic：“ / will”，消息：“ dieout”）为我解决了此问题，因为我们的用户无法访问ACL中的/ will主题。

MQTT-in-iOS - mqttDidDisconnect：远程端口关闭套接字

2 个答案: