asmack杂记

asmack的代码以及jar可以从 http://code.google.com/p/asmack/downloads/list 下载.

在android中创建一个service用来管理连接以及处理报文.

创建连接代码如下 ,其中server_ip是jabber服务器的ip, 可以是域名.

?? ???? Log.i(TAG, "ConnectManager in...");
??????? ConnectionConfiguration connConfig = new ConnectionConfiguration(server_ip);
??????? // connConfig.setSecurityMode(SecurityMode.disabled);
??????? connConfig.setSecurityMode(SecurityMode.required);
??????? connConfig.setSASLAuthenticationEnabled(false);
??????? connConfig.setCompressionEnabled(false);
?? ??? ?mConnection = new XMPPConnection(connConfig);

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连接到服务器代码:

?? ???? if (!isConnect()) {
?? ??? ??? ?Log.i(TAG, "Connect to server now...");
?? ???????? try {
?? ???????????? // Connect to the server
?? ??????? ??? ?mConnection.connect();
?? ???????????? Log.i(TAG, "connect success!!!");
?? ???????? } catch (XMPPException e) {
?? ???????????? Log.e(TAG, "connect failed!", e);
?? ???????? }
?? ??? ?}

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判断是否连接上:

??? mConnection.isConnected();

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登录到服务器代码, 需要用户名和密码:

?? ???? if (!isLogin()) {
?? ??? ??? ?Log.i(TAG, "Login to server now...");
?? ??? ??? ?try {
?? ??? ??? ??? ?mConnection.login(username, passwd);
?? ??? ??? ??? ?Log.i(TAG, "login success!!!");
?? ??? ??? ?} catch (XMPPException e) {
?? ??? ??? ??? ?Log.e(TAG, "login failed!", e);
?? ??? ??? ?}
?? ??? ?}

判断是否登录上:

??? ?mConnection.isAuthenticated();

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添加连接监听代码:

??????? mConnection.addConnectionListener(new ConnectionListener() {
??????????? public void connectionClosed() {
??????????????? // TODO
??????????? }

??????????? public void connectionClosedOnError(Exception e) {
??????????????? // TODO
??????????? }

??????????? public void reconnectingIn(int seconds) {
??????????????? // Ignore
??????????? }

??????????? public void reconnectionFailed(Exception e) {
??????????????? // Ignore
??????????? }

??????????? public void reconnectionSuccessful() {
??????????????? // Ignore
??????????? }
??????? });

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添加包监听代码, 以名单列表为例:

????? PacketFilter rosterFilter = new PacketTypeFilter(RosterPacket.class);
????? mConnection.addPacketListener(new RosterPacketListener(), rosterFilter);

???? 其中 RosterPacket类是继承Packet类的,? 除此之外还有 IQ,? Message,? Presence, AuthMechanism, Response五种类型的包.

可以使用OrFilter来同时处理多种类型的包. 以下代码用来接收所有的包:

?? ???? PacketFilter rosterPF = new PacketTypeFilter(RosterPacket.class);
?? ??? ?PacketFilter IQPF = new PacketTypeFilter(IQ.class);
?? ??? ?PacketFilter MSGPF = new PacketTypeFilter(Message.class);
?? ??? ?PacketFilter PresencePF = new PacketTypeFilter(Presence.class);
?? ??? ?PacketFilter AMPF = new PacketTypeFilter(AuthMechanism.class);
?? ??? ?PacketFilter REPF = new PacketTypeFilter(Response.class);
?? ??? ?
?? ??? ?OrFilter allPF = new OrFilter(rosterPF, IQPF);
?? ??? ?allPF.addFilter(MSGPF);
?? ??? ?allPF.addFilter(PresencePF);
?? ??? ?allPF.addFilter(AMPF);
?? ??? ?allPF.addFilter(REPF);
?? ??? ?PacketListener myListener = new PacketListener() {
?? ??? ??? ?public void processPacket(Packet pk) {
?? ??? ??? ??? ?Log.i(TAG, "receive message : " + pk.toString());
?? ??? ??? ?}
?? ??? ?};
?? ??? ?mConnection.addPacketListener(myListener, allPF);

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以下是使用asmac过程中遇到的问题以及解决方法:

1)??? java.net.SocketException: Bad address family?

解决方法, 在类中加入如下代码:

?? static {
?? ??? ?java.lang.System.setProperty("java.net.preferIPv4Stack", "true");
?? ??? ?java.lang.System.setProperty("java.net.preferIPv6Addresses", "false");
?? ?}

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2) java.security.KeyStoreException: KeyStore jks implementation not found

解决方法, 在创建ConnectionConfiguration 时指定证书位置及类型:

??????? connConfig.setTruststorePath("/system/etc/security/cacerts.bks");
??????? connConfig.setTruststoreType("bks");

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