基于smack的即时聊天系统之文件传输功能实现

来源：互联网发布：残棋破解软件编辑：程序博客网时间：2024/05/21 07:04

功能实现流程为：

1.文件发送方用户登录

2.确定文件的接收方和待发送文件路径

3.获取连接

4.根据连接获取文件接收方的完整jid（例如user@192.168.1.34/MiniQQ 2.3.6），其中MiniQQ 2.3.6为文件接收方用户客户端的resource，必须获取到，否则文件无法发送

5.发送文件

实现代码为：

<span style="font-size:18px;">public int TransFile(String toUser, String fileDir) {// final int flag[] = new int[] { 0 };Connection conn = this.connection;ServiceDiscoveryManager serviceDiscoveryManager = new ServiceDiscoveryManager(conn);// System.out.println(conn.toString());// System.out.println(this.sessionManager.getConnection().toString());if (!toUser.contains("@")) {toUser = toUser + "@" + this.connection.getServiceName();}// toUser = toUser +"/Spark 2.6.3";Roster roster = connection.getRoster();Presence pre = roster.getPresence(toUser);toUser = pre.getFrom();if (!toUser.contains("/")) {//toUser = toUser + "/MiniQQ 2.3.6";toUser = toUser + "/MiniQQ 2.3.6";}System.out.println("向发送文件：" + toUser);// System.out.println(toUser);if (pre == null) {System.out.println("用户不存在");return -1;}FileTransferManager transferManager = new FileTransferManager(conn);final File file = new File(fileDir);final OutgoingFileTransfer transfer = transferManager.createOutgoingFileTransfer(toUser);// FutureTask<Integer> task = new FutureTask<Integer>();FutureTask<Integer> task = new FutureTask<>(new Callable<Integer>() {@Overridepublic Integer call() throws Exception {int flag = 0;try {transfer.sendFile(file, "Sending");while (!transfer.isDone()) {try {Thread.sleep(10L);} catch (InterruptedException e) {e.printStackTrace();}if (transfer.getStatus() == FileTransfer.Status.in_progress) {System.out.println(transfer.getProgress());// flag[0] = 0;} else {if (transfer.getStatus() == FileTransfer.Status.error) {System.out.println("file transport failed");//// flag[0] = -1;flag = -1;// return ;}if (transfer.getStatus() == FileTransfer.Status.refused) {System.out.println("file transport was refused");// flag[0] = -1;flag = -1;// return ;}}}} catch (XMPPException e1) {e1.printStackTrace();// return ;}return flag;}});SwingUtilities.invokeLater(task);int flagRes = 0;while (true) {if (task.isDone()) {try {flagRes = task.get();} catch (InterruptedException e) {e.printStackTrace();} catch (ExecutionException e) {e.printStackTrace();}break;}}return flagRes;}</span>

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