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次のエラーが発生しています。CloudMQTTでMQTT WebSocket接続に失敗しました
'WSS://m12.cloudmqtt.com:39297/MQTT' へのWebSocket接続に失敗しました:>接続確立中にエラー:ネットを:: ERR_CONNECTION_TIMED_OUT
私はからcloudmqttに接続しようとしていますパホクライアント。
client = new Paho.MQTT.Client("m12.cloudmqtt.com", Number(39297), "client_1");
// set callback handlers
client.onConnectionLost = onConnectionLost;
client.onMessageArrived = onMessageArrived;
// connect the client
var options = {
useSSL: true,
userName: "[email protected]",
password: "lM#$Ffg67OR",
cleanSession: true,
onSuccess:onConnect,
onFailure:doFail
}
//client.connect({onSuccess:onConnect});
client.connect(options);
// called when the client connects
function onConnect() {
// Once a connection has been made, make a subscription and send a message.
debugger;
console.log("onConnect");
client.subscribe("outTopic");
message = new Paho.MQTT.Message("Hello");
message.destinationName = "World";
client.send(message);
}
function doFail(){
debugger;
console.log("dofail");
}
// called when the client loses its connection
function onConnectionLost(responseObject) {
if (responseObject.errorCode !== 0) {
console.log("onConnectionLost:"+responseObject.errorMessage);
}
}
// called when a message arrives
function onMessageArrived(message) {
console.log("onMessageArrived:"+message.payloadString);
var msg = message.payloadString;
debugger;
}
私はプログラム関数doFail()がトリガされたときに起動しますか? 何が問題なのですか?