您需要遵循xep-0136
http://xmpp.org/extensions/xep-0136.html
对于smack,您需要通过以下方式获得:
public void loadArchiveMessages(Jid jid, XMPPTCPConnection xmppTcpConnection){
try {
MamManager mamManager=MamManager.getInstanceFor(xmppTcpConnection);
MamManager.MamQueryResult mamQueryResult = mamManager.queryArchive(jid);
List<Forwarded> forwardedMessages=mamQueryResult.forwardedMessages;
Iterator<Forwarded> forwardedIterator=forwardedMessages.iterator();
while (forwardedIterator.hasNext()){
Forwarded forwarded=forwardedIterator.next();
Stanza stanza=forwarded.getForwardedStanza();
if (stanza instanceof Message) {
String messageId=stanza.getStanzaId();
xmppTcpConnection.processMessage((Message) stanza);
}
}
} catch (XMPPException.XMPPErrorException e) {
e.printStackTrace();
} catch (SmackException.NotLoggedInException e) {
e.printStackTrace();
} catch (SmackException.NotConnectedException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (SmackException.NoResponseException e) {
e.printStackTrace();
}
}