我使用Java在android上安装了pubnub
并且在所有其他操作系统上，安装程序运行正常。但是在Android P上，attach侦听器始终会给出此错误-
PNStatus(category=PNBadRequestCategory, errorData=PNErrorData(information=null, throwable=PubNubException(errormsg=CLEARTEXT communication to ps.pndsn.com not permitted by network security policy, pubnubError=PubNubError(errorCode=103, errorCodeExtended=0, errorObject=null, message=HTTP Error. Please check network connectivity. Please contact support with error details if issue persists., errorString=null), jso=null, response=null, statusCode=0)), error=true, statusCode=0, operation=PNSubscribeOperation, tlsEnabled=false, uuid=null, authKey=null, origin=null, clientRequest=null, affectedChannels=[5d67fb36f4f95718bf8ec310], affectedChannelGroups=[])
设置如下-
PNConfiguration pnConfiguration = new PNConfiguration();
pnConfiguration.setLogVerbosity(PNLogVerbosity.BODY);
pnConfiguration.setPublishKey(getString(R.string.pubnub_publish_key));
pnConfiguration.setSubscribeKey(getString(R.string.pubnub_subscribe_key));
pnConfiguration.setSecure(false);
pubnub = new PubNub(pnConfiguration);
然后我附加这样的听众
pubnub.addListener(new SubscribeCallback() {
@Override
public void status(PubNub pubnub, PNStatus status) {
Log.e("Pubnub:- ", status.toString());
switch (status.getOperation()) {
// let's combine unsubscribe and subscribe handling for ease of use
case PNSubscribeOperation:
case PNUnsubscribeOperation:
// note: subscribe statuses never have traditional
// errors, they just have categories to represent the
// different issues or successes that occur as part of subscribe
switch (status.getCategory()) {
case PNConnectedCategory:
// this is expected for a subscribe, this means there is no error or issue whatsoever
case PNReconnectedCategory:
// this usually occurs if subscribe temporarily fails but reconnects. This means
// there was an error but there is no longer any issue
case PNDisconnectedCategory:
// this is the expected category for an unsubscribe. This means there
// was no error in unsubscribing from everything
case PNUnexpectedDisconnectCategory:
// this is usually an issue with the internet connection, this is an error, handle appropriately
case PNAccessDeniedCategory:
// this means that PAM does allow this client to subscribe to this
// channel and channel group configuration. This is another explicit error
default:
// More errors can be directly specified by creating explicit cases for other
// error categories of `PNStatusCategory` such as `PNTimeoutCategory` or `PNMalformedFilterExpressionCategory` or `PNDecryptionErrorCategory`
}
case PNHeartbeatOperation:
// heartbeat operations can in fact have errors, so it is important to check first for an error.
// For more information on how to configure heartbeat notifications through the status
// PNObjectEventListener callback, consult <link to the PNCONFIGURATION heartbeart config>
if (status.isError()) {
// There was an error with the heartbeat operation, handle here
} else {
// heartbeat operation was successful
}
default: {
// Encountered unknown status type
}
}
}
@Override
public void message(PubNub pubnub, PNMessageResult message) {
String messagePublisher = message.getPublisher();
System.out.println("Message publisher: " + messagePublisher);
System.out.println("Message Payload: " + message.getMessage());
System.out.println("Message Subscription: " + message.getSubscription());
System.out.println("Message Channel: " + message.getChannel());
System.out.println("Message timetoken: " + message.getTimetoken());
}
@Override
public void presence(PubNub pubnub, PNPresenceEventResult presence) {
}
@Override
public void signal(PubNub pubnub, PNSignalResult pnSignalResult) {
System.out.println("Signal publisher: " + signal.getPublisher());
System.out.println("Signal payload: " + signal.getMessage());
System.out.println("Signal subscription: " + signal.getSubscription());
System.out.println("Signal channel: " + signal.getChannel());
System.out.println("Signal timetoken: " + signal.getTimetoken());
}
@Override
public void user(PubNub pubnub, PNUserResult pnUserResult) {
// for Objects, this will trigger when:
// . user updated
// . user deleted
PNUser pnUser = pnUserResult.getUser(); // the user for which the event applies to
pnUserResult.getEvent(); // the event name
}
@Override
public void space(PubNub pubnub, PNSpaceResult pnSpaceResult) {
// for Objects, this will trigger when:
// . space updated
// . space deleted
PNSpace pnSpace = pnSpaceResult.getSpace(); // the space for which the event applies to
pnSpaceResult.getEvent(); // the event name
}
@Override
public void membership(PubNub pubnub, PNMembershipResult pnMembershipResult) {
// for Objects, this will trigger when:
// . user added to a space
// . user removed from a space
// . membership updated on a space
JsonElement data = pnMembershipResult.getData(); // membership data for which the event applies to
pnMembershipResult.getEvent(); // the event name
}
@Override
public void messageAction(PubNub pubnub, PNMessageActionResult pnActionResult) {
PNMessageAction pnMessageAction = pnActionResult.getAction();
System.out.println("Message action type: " + pnMessageAction.getType());
System.out.println("Message action value: " + pnMessageAction.getValue());
System.out.println("Message action uuid: " + pnMessageAction.getUuid());
System.out.println("Message action actionTimetoken: " + pnMessageAction.getActionTimetoken());
System.out.println("Message action messageTimetoken: " + pnMessageAction.getMessageTimetoken());]
System.out.println("Message action subscription: " + pnActionResult.getSubscription());
System.out.println("Message action channel: " + pnActionResult.getChannel());
System.out.println("Message action timetoken: " + pnActionResult.getTimetoken());
}
}）;
就像我说的那样，它在9以外的其他操作系统上都可以正常工作，并且我使用的是pubnub的最新版本，实际上我已升级到最新版本，并且上述错误是相同的。
[我注意到了其他事情，我在调试器中看到的消息仅在android版本9中运行时才显示。
isWhitelistProcess - Process is Whitelisted
我搜索了该消息，发现它是无害的警告消息。
启用TLS（SSL）可解决此错误：pnConfiguration.setSecure(true);
原因已在another Stack Overflow thread中回答。它不是特定于PubNub，而是因为您在PubNub中禁用了TLS（SSL），所以它在错误中显式调用了PubNub域。