如何使用 Smack 4.1 创建、发送和接收 IQ 数据包答案

【问题标题】：How can I create, send and receive IQ packets using Smack 4.1如何使用 Smack 4.1 创建、发送和接收 IQ 数据包
【发布时间】：2015-07-24 13:03:31
【问题描述】：

我需要将 IQ 数据包发送到 XMPP 服务器以检索消息存档。

如何创建、发送和接收 XMPP IQ 数据包？

谢谢

PS：这个问题似乎与How Can I create,send and receive iq packets using smack(java) 重复，其实不然。近年来，Smack API 发生了很大变化。

【问题讨论】：

标签： smack

【解决方案1】：

     MyCustomIQ iq = new MyCustomIQ();
      iq.setType(IQ.Type.set);
     mConnection.sendIqWithResponseCallback(iq, new PacketListener() {
                @Override
                public void processPacket(Packet packet) throws SmackException.NotConnectedException {
                    Log.i("Send IQ with Response", "****** message " + packet);
                }
            }, new ExceptionCallback() {
                @Override
                public void processException(Exception exception) {
                  exception.printStackTrace();
                    Log.i("IO archjieve Exception",""+ exception.getMessage());
                }
            }, 5000);

      mConnection.sendPacket(new Presence(Presence.Type.available));
            PacketTypeFilter filter=new PacketTypeFilter(org.jivesoftware.smack.packet.Message.class);
            PacketListener myListener=new PacketListener(){
                public void processPacket(Packet packet){
                   if(((Message) packet).getType().equals(Message.Type.chat))
                    {
                        ((Message) packet).getBody();
                    }
                    else if(((Message) packet).getType().equals(Message.Type.normal))
                    {
                        DefaultPacketExtension pacExten=PacketUtil.packetExtensionfromCollection(packet.getExtensions(), "result", "urn:xmpp:mam:0");
                        String strMsg=pacExten.getValue("body");
                    }
                }
            }
             ;
           mConnection.addPacketListener(myListener, filter);


    //My Custom IQ
    class MyCustomIQ extends IQ {

            String token;


            protected MyCustomIQ() {
            super("query","urn:xmpp:mam:0");
            }



            @Override
            protected IQChildElementXmlStringBuilder getIQChildElementBuilder(IQChildElementXmlStringBuilder xml) {
    //  String queryId = prefix + Long.toString(new AtomicLong().incrementAndGet());
                xml.attribute("queryid",queryId);
                xml.rightAngleBracket();
                return xml;
            }


        }


//You may get the response in PacketListerener sometimes so put debug that also

【讨论】：