我一直在努力通过 Smack 和 Openfire 服务器与 XMPP 聊天。我的问题如下:
每当用户向另一个用户发送消息时,该消息都会在另一个用户处正确接收。但是任何回复都不会出现在第一条消息的发件人处。所以用户 1 成功发送给用户 2。然后,用户 2 无法向用户 1 发送任何回复。另一方面,如果我重新启动并让用户再次登录,用户 2 可以发送给用户 1,但反之则不行。
我想说的是,只有聊天的发起者可以发送消息,接收者不能回复。
我的代码看起来像这样
package xmpp;
public class XMPPClient{
private static final int packetReplyTimeout = 500; // millis
private XMPPConnection connection;
private ChatManager chatManager;
private MessageListener messageListener;
private ConnectionConfiguration config;
private MyTimer t = MyTimer.getInstance();
private ArrayList<String> threadPool = new ArrayList<String>();
public XMPPClient()
{
SmackConfiguration.setPacketReplyTimeout(packetReplyTimeout);
//define openfire server information
config = new ConnectionConfiguration("localhost",5222);
config.setSASLAuthenticationEnabled(false);
config.setSecurityMode(SecurityMode.disabled);
connection = new XMPPConnection(config);
//connect to server
t.start("Connecting to server...");
try {
connection.connect();
} catch (XMPPException e) {
System.err.println("Failed to connect to server! Connect to VPN!\t"+e.getMessage());
System.exit(0);
}
t.end("Connection took ");
//setup chat mechanism
chatManager = connection.getChatManager();
chatManager.addChatListener(
new ChatManagerListener() {
@Override
public void chatCreated(Chat chat, boolean createdLocally)
{
if (!createdLocally)
chat.addMessageListener(new MyMessageListener());
}
});
}
public boolean login(String userName, String password, String resource) {
t.start("Logging in...");
try {
if (connection!=null && connection.isConnected())
connection.login(userName, password, resource);
//set available presence
setStatus(true);
}
catch (XMPPException e) {
if(e.getMessage().contains("auth")){
System.err.println("Invalid Login Information!\t"+e.getMessage());
}
else{
e.printStackTrace();
}
return false;
}
t.end("Logging in took ");
return true;
}
public void setStatus(boolean available) {
if(available)
connection.sendPacket(new Presence(Presence.Type.available));
else
connection.sendPacket(new Presence(Presence.Type.unavailable));
}
public void sendMessage(String message, String buddyJID) throws XMPPException {
System.out.println(String.format("Sending mesage '%1$s' to user %2$s", message, buddyJID));
boolean chatExists = false;
Chat c = null;
for(String tid : threadPool)
{
if((c = chatManager.getThreadChat(tid)) != null)
{
if(c.getParticipant().equals(buddyJID))
{
if(checkAvailability(buddyJID))
{
chatExists = true;
break;
}
else
{
threadPool.remove(tid);
break;
}
}
}
}
if (chatExists)
{
Chat chat = c;
chat.sendMessage(message);
}
else
{
Chat chat = chatManager.createChat(buddyJID, messageListener);
threadPool.add(chat.getThreadID()); System.out.println(chat.getThreadID());
chat.sendMessage(message);
}
}
public void createEntry(String user, String name) throws Exception {
System.out.println(String.format("Creating entry for buddy '%1$s' with name %2$s", user, name));
Roster roster = connection.getRoster();
roster.createEntry(user, name, null);
}
public boolean checkAvailability(String jid)
{
System.out.print("Checking availability for: "+jid+"=");
System.out.println(connection.getRoster().getPresence(jid).isAvailable());
return connection.getRoster().getPresence(jid).isAvailable();
}
public void disconnect() {
if (connection!=null && connection.isConnected()) {
setStatus(false);
connection.disconnect();
}
}
}
import org.jivesoftware.smack.packet.Message;
public class MyMessageListener implements MessageListener {
@Override
public void processMessage(Chat chat, Message message) {
String from = message.getFrom();
String body = message.getBody();
System.out.println(String.format("Received message '%1$s' from %2$s", body, from));
}
}
我不确定问题是什么。有什么建议么?示例代码?
谢谢 <3