XMPP——Smack[4]状态，心情，头像更改
这里写完，最基本的IM功能也就完了，
还剩下个发送接收文件，离线消息扩展等等
呵呵，三天时间，看的不是很深入，欢迎大家补充呀
1. 修改自身状态
包括上线，隐身，对某人隐身，对某人上线
public static void updateStateToAvailable(XMPPConnection connection) { Presence presence = new Presence(Presence.Type.available); connection.sendPacket(presence); } public static void updateStateToUnAvailable(XMPPConnection connection) { Presence presence = new Presence(Presence.Type.unavailable); connection.sendPacket(presence); } public static void updateStateToUnAvailableToSomeone(XMPPConnection connection,String userName) { Presence presence = new Presence(Presence.Type.unavailable); presence.setTo(userName); connection.sendPacket(presence); } public static void updateStateToAvailableToSomeone(XMPPConnection connection,String userName) { Presence presence = new Presence(Presence.Type.available); presence.setTo(userName); connection.sendPacket(presence); }
2. 心情修改
/** * 修改心情 * @param connection * @param status */ public static void changeStateMessage(XMPPConnection connection,String status) { Presence presence = new Presence(Presence.Type.available); presence.setStatus(status); connection.sendPacket(presence); }
3. 修改用户头像
有点麻烦，主要是读入图片文件，编码，传输之
public static void changeImage(XMPPConnection connection,File f) throws XMPPException, IOException { VCard vcard = new VCard(); vcard.load(connection); byte[] bytes; bytes = getFileBytes(f); String encodedImage = StringUtils.encodeBase64(bytes); vcard.setAvatar(bytes, encodedImage); vcard.setEncodedImage(encodedImage); vcard.setField("PHOTO", "<TYPE>image/jpg</TYPE><BINVAL>" + encodedImage + "</BINVAL>", true); ByteArrayInputStream bais = new ByteArrayInputStream( vcard.getAvatar()); Image image = ImageIO.read(bais); ImageIcon ic = new ImageIcon(image); vcard.save(connection); } private static byte[] getFileBytes(File file) throws IOException { BufferedInputStream bis = null; try { bis = new BufferedInputStream(new FileInputStream(file)); int bytes = (int) file.length(); byte[] buffer = new byte[bytes]; int readBytes = bis.read(buffer); if (readBytes != buffer.length) { throw new IOException("Entire file not read"); } return buffer; } finally { if (bis != null) { bis.close(); } } }
4. 补充，用户状态的监听
即对方改变头像，状态，心情时，更新自己用户列表，其实这里已经有smack实现的监听器
final Roster roster = Client.getRoster(); roster.addRosterListener( new RosterListener() { @Override public void entriesAdded(Collection<String> arg0) { // TODO Auto-generated method stub System.out.println("--------EE:"+"entriesAdded"); } @Override public void entriesDeleted(Collection<String> arg0) { // TODO Auto-generated method stub System.out.println("--------EE:"+"entriesDeleted"); } @Override public void entriesUpdated(Collection<String> arg0) { // TODO Auto-generated method stub System.out.println("--------EE:"+"entriesUpdated"); } @Override public void presenceChanged(Presence arg0) { // TODO Auto-generated method stub System.out.println("--------EE:"+"presenceChanged"); } });
下一篇主要是文件传输和接收