基於xmpp openfire smack開發之smack類庫介紹和使用[2]
關於Smack程式設計庫,前面我們提到,它是面向Java端的api,主要在PC上使用,利用它我們可以向openfire伺服器註冊使用者,傳送訊息,並且可以通過監聽器獲得此使用者的應答訊息,以及構建聊天室,分組,個人通訊錄等等。
下面我們寫幾個程式小例子測試一下。
(1)登入操作
- PPConnection.DEBUG_ENABLED = true;
- AccountManager accountManager;
- final ConnectionConfiguration connectionConfig = new ConnectionConfiguration(
- "192.168.1.78", Integer.parseInt("5222"), "csdn.shimiso.com");
- // 允許自動連線
- connectionConfig.setReconnectionAllowed(true);
- connectionConfig.setSendPresence(true);
- Connection connection = new XMPPConnection(connectionConfig);
- try {
- connection.connect();// 開啟連線
- accountManager = connection.getAccountManager();// 獲取賬戶管理類
- } catch (XMPPException e) {
- throw new IllegalStateException(e);
- }
- // 登入
- connection.login("admin", "admin","SmackTest");
- System.out.println(connection.getUser());
- connection.getChatManager().createChat("shimiso@csdn.shimiso.com",null).sendMessage("Hello word!");
執行結果:
在login中一共有三個引數,登入名,密碼,資源名,可能有人不明白資源名到底是什麼意思,其實就是客戶端的來源,客戶端的名稱,如果不寫它預設就叫smack,如果你用相同的賬戶不同的資源名和同一個人發三條訊息,那將會彈出三個視窗,而不是一個視窗。
同時smack還為我們提供了非常好的除錯工具Smack Debug,利用該工具我們可以準確的捕獲詳細的往返報文資訊。
(2)下面我們繼續寫個聊天的例子:
- PPConnection.DEBUG_ENABLED = true;
- AccountManager accountManager;
- final ConnectionConfiguration connectionConfig = new ConnectionConfiguration(
- "192.168.1.78", Integer.parseInt("5222"), "csdn.shimiso.com");
- // 允許自動連線
- connectionConfig.setReconnectionAllowed(true);
- connectionConfig.setSendPresence(true);
- Connection connection = new XMPPConnection(connectionConfig);
- try {
- connection.connect();// 開啟連線
- accountManager = connection.getAccountManager();// 獲取賬戶管理類
- } catch (XMPPException e) {
- throw new IllegalStateException(e);
- }
- // 登入
- connection.login("admin", "admin","SmackTest3");
- ChatManager chatmanager = connection.getChatManager();
- Chat newChat = chatmanager.createChat("shimiso@csdn.shimiso.com", new MessageListener() {
- public void processMessage(Chat chat, Message message) {
- if (message.getBody() != null) {
- System.out.println("Received from 【"
- + message.getFrom() + "】 message: "
- + message.getBody());
- }
- }
- });
- Scanner input = new Scanner(System.in);
- while (true) {
- String message = input.nextLine();
- newChat.sendMessage(message);
- }
執行結果:
這裡我們用Scanner來捕捉使用者在控制檯的鍵盤操作,將資訊發出,同時建立了一個MessageListener監聽,在其中強制實現processMessage方法即可捕獲發回的資訊,在初次使用上還是較為容易上手的,我們只要細心檢視API即可逐步深入下去。
(3)除了聊天以外我們經常還能想到就是廣播
需要給所有線上的使用者傳送一個通知,或者給所有線上和離線的使用者全傳送,我們先演示如何給線上使用者傳送一個廣播:
- PPConnection.DEBUG_ENABLED = false;
- AccountManager accountManager;
- final ConnectionConfiguration connectionConfig = new ConnectionConfiguration(
- "192.168.1.78", Integer.parseInt("5222"), "csdn.shimiso.com");
- // 允許自動連線
- connectionConfig.setReconnectionAllowed(true);
- connectionConfig.setSendPresence(true);
- Connection connection = new XMPPConnection(connectionConfig);
- try {
- connection.connect();// 開啟連線
- accountManager = connection.getAccountManager();// 獲取賬戶管理類
- } catch (XMPPException e) {
- throw new IllegalStateException(e);
- }
- connection.login("admin", "admin","SmackTest3");
- Message newmsg = new Message();
- newmsg.setTo("shimiso@csdn.shimiso.com");
- newmsg.setSubject("重要通知");
- newmsg.setBody("今天下午2點60分有會!");
- newmsg.setType(Message.Type.headline);// normal支援離線
- connection.sendPacket(newmsg);
- connection.disconnect();
執行結果:
將引數設定為Message.Type.normal即可支援離線廣播,openfire系統會自動判斷該使用者是否線上,如果線上就直接傳送出去,如果不線上則將資訊存入ofoffline表,現在我將shimiso使用者退出登入,再給它發訊息,我們可以進入openfire庫的ofoffline表中,非常清楚看到裡面躺著一條離線訊息記錄是發給shimiso這個使用者的
(4)那麼我們如何讓shimiso這個使用者一登陸就取到離線訊息呢?
請看如下程式碼
- PPConnection.DEBUG_ENABLED = false;
- AccountManager accountManager;
- final ConnectionConfiguration connectionConfig = new ConnectionConfiguration(
- "192.168.1.78", Integer.parseInt("5222"), "csdn.shimiso.com");
- // 允許自動連線
- connectionConfig.setReconnectionAllowed(true);
- connectionConfig.setSendPresence(false);//不要告訴伺服器自己的狀態
- Connection connection = new XMPPConnection(connectionConfig);
- try {
- connection.connect();// 開啟連線
- accountManager = connection.getAccountManager();// 獲取賬戶管理類
- } catch (XMPPException e) {
- throw new IllegalStateException(e);
- }
- connection.login("shimiso", "123","SmackTest");
- OfflineMessageManager offlineManager = new OfflineMessageManager(
- connection);
- try {
- Iterator<org.jivesoftware.smack.packet.Message> it = offlineManager
- .getMessages();
- System.out.println(offlineManager.supportsFlexibleRetrieval());
- System.out.println("離線訊息數量: " + offlineManager.getMessageCount());
- Map<String, ArrayList<Message>> offlineMsgs = new HashMap<String, ArrayList<Message>>();
- while (it.hasNext()) {
- org.jivesoftware.smack.packet.Message message = it.next();
- System.out
- .println("收到離線訊息, Received from 【" + message.getFrom()
- + "】 message: " + message.getBody());
- String fromUser = message.getFrom().split("/")[0];
- if (offlineMsgs.containsKey(fromUser)) {
- offlineMsgs.get(fromUser).add(message);
- } else {
- ArrayList<Message> temp = new ArrayList<Message>();
- temp.add(message);
- offlineMsgs.put(fromUser, temp);
- }
- }
- // 在這裡進行處理離線訊息集合......
- Set<String> keys = offlineMsgs.keySet();
- Iterator<String> offIt = keys.iterator();
- while (offIt.hasNext()) {
- String key = offIt.next();
- ArrayList<Message> ms = offlineMsgs.get(key);
- for (int i = 0; i < ms.size(); i++) {
- System.out.println("-->" + ms.get(i));
- }
- }
- offlineManager.deleteMessages();
- } catch (Exception e) {
- e.printStackTrace();
- }
- offlineManager.deleteMessages();//刪除所有離線訊息
- Presence presence = new Presence(Presence.Type.available);
- nnection.sendPacket(presence);//上線了
- nnection.disconnect();//關閉連線
執行結果:
這裡我們需要特別當心的是先不要告訴openfire伺服器你上線了,否則永遠也拿不到離線訊息,用下面英文大概意思就是在你上線之前去獲取離線訊息,這麼設計是很有道理的。
The OfflineMessageManager helps manage offline messages even before the user has sent an available presence. When a user asks for his offline messages before sending an available presence then the server will not send a flood with all the offline messages when the user becomes online. The server will not send a flood with all the offline messages to the session that made the offline messages request or to any other session used by the user that becomes online.
拿到離線訊息處理完畢之後刪除離線訊息offlineManager.deleteMessages() 接著通知伺服器上線了。
(5)下面我們來看看如何來傳送檔案
- PPConnection.DEBUG_ENABLED = false;
- AccountManager accountManager;
- final ConnectionConfiguration connectionConfig = new ConnectionConfiguration(
- "192.168.1.78", Integer.parseInt("5222"), "csdn.shimiso.com");
- // 允許自動連線
- connectionConfig.setReconnectionAllowed(true);
- connectionConfig.setSendPresence(true);
- Connection connection = new XMPPConnection(connectionConfig);
- try {
- connection.connect();// 開啟連線
- accountManager = connection.getAccountManager();// 獲取賬戶管理類
- } catch (XMPPException e) {
- throw new IllegalStateException(e);
- }
- connection.login("admin", "admin","Rooyee");
- Presence pre = connection.getRoster().getPresence("shimiso@csdn.shimiso.com");
- System.out.println(pre);
- if (pre.getType() != Presence.Type.unavailable) {
- // 建立檔案傳輸管理器
- FileTransferManager manager = new FileTransferManager(connection);
- // 建立輸出的檔案傳輸
- OutgoingFileTransfer transfer = manager
- .createOutgoingFileTransfer(pre.getFrom());
- // 傳送檔案
- transfer.sendFile(new File("E:\\Chrysanthemum.jpg"), "圖片");
- while (!transfer.isDone()) {
- if (transfer.getStatus() == FileTransfer.Status.in_progress) {
- // 可以呼叫transfer.getProgress();獲得傳輸的進度
- System.out.println(transfer.getStatus());
- System.out.println(transfer.getProgress());
- System.out.println(transfer.isDone());
- }
- }
- }
執行結果:
在這裡我們需要特別注意的是,跨資源是無法傳送檔案的,看connection.login("admin", "admin","Rooyee");這個程式碼就明白了,必須是“域名和資源名”完全相同的兩個使用者才可以互發檔案,否則永遠都沒反應,如果不清楚自己所用的客戶端的資源名,可以藉助前面提到的SmackDebug工具檢視往返資訊完整報文,在to和from中一定可以看到。
如果我們自己要寫檔案接收例子的話,參考程式碼如下:
- FileTransferManager transfer = new FileTransferManager(connection);
- transfer.addFileTransferListener(new RecFileTransferListener());
- public class RecFileTransferListener implements FileTransferListener {
- public String getFileType(String fileFullName) {
- if (fileFullName.contains(".")) {
- return "." + fileFullName.split("//.")[1];
- } else {
- return fileFullName;
- }
- }
- @Override
- public void fileTransferRequest(FileTransferRequest request) {
- System.out.println("接收檔案開始.....");
- final IncomingFileTransfer inTransfer = request.accept();
- final String fileName = request.getFileName();
- long length = request.getFileSize();
- final String fromUser = request.getRequestor().split("/")[0];
- System.out.println("檔案大小:" + length + " " + request.getRequestor());
- System.out.println("" + request.getMimeType());
- try {
- JFileChooser chooser = new JFileChooser();
- chooser.setCurrentDirectory(new File("."));
- int result = chooser.showOpenDialog(null);
- if (result == JFileChooser.APPROVE_OPTION) {
- final File file = chooser.getSelectedFile();
- System.out.println(file.getAbsolutePath());
- new Thread() {
- public void run() {
- try {
- System.out.println("接受檔案: " + fileName);
- inTransfer
- .recieveFile(new File(file
- .getAbsolutePath()
- + getFileType(fileName)));
- Message message = new Message();
- message.setFrom(fromUser);
- message.setProperty("REC_SIGN", "SUCCESS");
- message.setBody("[" + fromUser + "]傳送檔案: "
- + fileName + "/r/n" + "儲存位置: "
- + file.getAbsolutePath()
- + getFileType(fileName));
- if (Client.isChatExist(fromUser)) {
- Client.getChatRoom(fromUser)
- .messageReceiveHandler(message);
- } else {
- ChatFrameThread cft = new ChatFrameThread(
- fromUser, message);
- cft.start();
- }
- } catch (Exception e2) {
- e2.printStackTrace();
- }
- }
- }.start();
- } else {
- System.out.println("拒絕接受檔案: " + fileName);
- request.reject();
- Message message = new Message();
- message.setFrom(fromUser);
- message.setBody("拒絕" + fromUser + "傳送檔案: " + fileName);
- message.setProperty("REC_SIGN", "REJECT");
- if (Client.isChatExist(fromUser)) {
- Client.getChatRoom(fromUser).messageReceiveHandler(message);
- } else {
- ChatFrameThread cft = new ChatFrameThread(fromUser, message);
- cft.start();
- }
- }
- /*
- * InputStream in = inTransfer.recieveFile();
- *
- * String fileName = "r"+inTransfer.getFileName();
- *
- * OutputStream out = new FileOutputStream(new
- * File("d:/receive/"+fileName)); byte[] b = new byte[512];
- * while(in.read(b) != -1) { out.write(b); out.flush(); }
- *
- * in.close(); out.close();
- */
- } catch (Exception e) {
- e.printStackTrace();
- }
- System.out.println("接收檔案結束.....");
- }
- }
(6)使用者列表
- **
- * 返回所有組資訊 <RosterGroup>
- *
- * @return List(RosterGroup)
- */
- public static List<RosterGroup> getGroups(Roster roster) {
- List<RosterGroup> groupsList = new ArrayList<RosterGroup>();
- Collection<RosterGroup> rosterGroup = roster.getGroups();
- Iterator<RosterGroup> i = rosterGroup.iterator();
- while (i.hasNext())
- groupsList.add(i.next());
- return groupsList;
- }
- /**
- * 返回相應(groupName)組裡的所有使用者<RosterEntry>
- *
- * @return List(RosterEntry)
- */
- public static List<RosterEntry> getEntriesByGroup(Roster roster,
- String groupName) {
- List<RosterEntry> EntriesList = new ArrayList<RosterEntry>();
- RosterGroup rosterGroup = roster.getGroup(groupName);
- Collection<RosterEntry> rosterEntry = rosterGroup.getEntries();
- Iterator<RosterEntry> i = rosterEntry.iterator();
- while (i.hasNext())
- EntriesList.add(i.next());
- return EntriesList;
- }
- /**
- * 返回所有使用者資訊 <RosterEntry>
- *
- * @return List(RosterEntry)
- */
- public static List<RosterEntry> getAllEntries(Roster roster) {
- List<RosterEntry> EntriesList = new ArrayList<RosterEntry>();
- Collection<RosterEntry> rosterEntry = roster.getEntries();
- Iterator<RosterEntry> i = rosterEntry.iterator();
- while (i.hasNext())
- EntriesList.add(i.next());
- return EntriesList;
- }
(7)使用者頭像的獲取
使用VCard,很強大,具體自己看API吧,可以看看VCard傳回來XML的組成,含有很多資訊的
- **
- * 獲取使用者的vcard資訊
- * @param connection
- * @param user
- * @return
- * @throws XMPPException
- */
- public static VCard getUserVCard(XMPPConnection connection, String user) throws XMPPException
- {
- VCard vcard = new VCard();
- vcard.load(connection, user);
- return vcard;
- }
- /**
- * 獲取使用者頭像資訊
- */
- public static ImageIcon getUserImage(XMPPConnection connection, String user) {
- ImageIcon ic = null;
- try {
- System.out.println("獲取使用者頭像資訊: "+user);
- VCard vcard = new VCard();
- vcard.load(connection, user);
- if(vcard == null || vcard.getAvatar() == null)
- {
- return null;
- }
- ByteArrayInputStream bais = new ByteArrayInputStream(
- vcard.getAvatar());
- Image image = ImageIO.read(bais);
- ic = new ImageIcon(image);
- System.out.println("圖片大小:"+ic.getIconHeight()+" "+ic.getIconWidth());
- } catch (Exception e) {
- e.printStackTrace();
- }
- return ic;
- }
(8)組操作和使用者分組操作
- **
- * 新增一個組
- */
- public static boolean addGroup(Roster roster,String groupName)
- {
- try {
- roster.createGroup(groupName);
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }
- }
- /**
- * 刪除一個組
- */
- public static boolean removeGroup(Roster roster,String groupName)
- {
- return false;
- }
- /**
- * 新增一個好友 無分組
- */
- public static boolean addUser(Roster roster,String userName,String name)
- {
- try {
- roster.createEntry(userName, name, null);
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }
- }
- /**
- * 新增一個好友到分組
- * @param roster
- * @param userName
- * @param name
- * @return
- */
- public static boolean addUser(Roster roster,String userName,String name,String groupName)
- {
- try {
- roster.createEntry(userName, name,new String[]{ groupName});
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }
- }
- /**
- * 刪除一個好友
- * @param roster
- * @param userName
- * @return
- */
- public static boolean removeUser(Roster roster,String userName)
- {
- try {
- if(userName.contains("@"))
- {
- userName = userName.split("@")[0];
- }
- RosterEntry entry = roster.getEntry(userName);
- System.out.println("刪除好友:"+userName);
- System.out.println("User: "+(roster.getEntry(userName) == null));
- roster.removeEntry(entry);
- return true;
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- }
- }
(9)使用者查詢
- public static List<UserBean> searchUsers(XMPPConnection connection,String serverDomain,String userName) throws XMPPException
- {
- List<UserBean> results = new ArrayList<UserBean>();
- System.out.println("查詢開始..............."+connection.getHost()+connection.getServiceName());
- UserSearchManager usm = new UserSearchManager(connection);
- Form searchForm = usm.getSearchForm(serverDomain);
- Form answerForm = searchForm.createAnswerForm();
- answerForm.setAnswer("Username", true);
- answerForm.setAnswer("search", userName);
- ReportedData data = usm.getSearchResults(answerForm, serverDomain);
- Iterator<Row> it = data.getRows();
- Row row = null;
- UserBean user = null;
- while(it.hasNext())
- {
- user = new UserBean();
- row = it.next();
- user.setUserName(row.getValues("Username").next().toString());
- user.setName(row.getValues("Name").next().toString());
- user.setEmail(row.getValues("Email").next().toString());
- System.out.println(row.getValues("Username").next());
- System.out.println(row.getValues("Name").next());
- System.out.println(row.getValues("Email").next());
- results.add(user);
- //若存在,則有返回,UserName一定非空,其他兩個若是有設,一定非空
- }
- return results;
- }
(10)修改自身狀態
包括上線,隱身,對某人隱身,對某人上線
- ublic static void updateStateToAvailable(XMPPConnection connection)
- {
- Presence presence = new Presence(Presence.Type.available);
- nnection.sendPacket(presence);
- public static void updateStateToUnAvailable(XMPPConnection connection)
- {
- Presence presence = new Presence(Presence.Type.unavailable);
- nnection.sendPacket(presence);
- }
- public static void updateStateToUnAvailableToSomeone(XMPPConnection connection,String userName)
- {
- Presence presence = new Presence(Presence.Type.unavailable);
- presence.setTo(userName);
- nnection.sendPacket(presence);
- }
- public static void updateStateToAvailableToSomeone(XMPPConnection connection,String userName)
- {
- Presence presence = new Presence(Presence.Type.available);
- presence.setTo(userName);
- nnection.sendPacket(presence);
- }
(11)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);
- }
(12)修改使用者頭像
有點麻煩,主要是讀入圖片檔案,編碼,傳輸之
- 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();
- }
- }
- }
(13)使用者狀態的監聽
即對方改變頭像,狀態,心情時,更新自己使用者列表,其實這裡已經有smack實現的監聽器
- nal 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");
- }
- });
轉載請標明出處http://blog.csdn.net/shimiso
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