我正在尝试使用 Android 中的 XMPP 客户端连接并登录到 ejabberd 服务器。XMPP 客户端连接到服务器，但没有登录。我收到异常消息作为No response from the server。我不知道问题出在哪里。
以下是代码：
XMPP 客户端.java
package org.apache.android.xmpp;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.filter.MessageTypeFilter;
import org.jivesoftware.smack.filter.PacketFilter;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.util.StringUtils;
import java.util.ArrayList;
public class XMPPClient extends Activity {
private ArrayList<String> messages = new ArrayList();
private Handler mHandler = new Handler();
private SettingsDialog mDialog;
private EditText mRecipient;
private EditText mSendText;
private ListView mList;
private XMPPConnection connection;
/**
* Called with the activity is first created.
*/
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
Log.i("XMPPClient", "onCreate called");
setContentView(R.layout.main);
mRecipient = (EditText) this.findViewById(R.id.recipient);
Log.i("XMPPClient", "mRecipient = " + mRecipient);
mSendText = (EditText) this.findViewById(R.id.sendText);
Log.i("XMPPClient", "mSendText = " + mSendText);
mList = (ListView) this.findViewById(R.id.listMessages);
Log.i("XMPPClient", "mList = " + mList);
setListAdapter();
// Dialog for getting the xmpp settings
mDialog = new SettingsDialog(this);
// Set a listener to show the settings dialog
Button setup = (Button) this.findViewById(R.id.setup);
setup.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
mHandler.post(new Runnable() {
public void run() {
mDialog.show();
}
});
}
});
// Set a listener to send a chat text message
Button send = (Button) this.findViewById(R.id.send);
send.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String to = mRecipient.getText().toString();
String text = mSendText.getText().toString();
Log.i("XMPPClient", "Sending text [" + text + "] to [" + to + "]");
Message msg = new Message(to, Message.Type.chat);
msg.setBody(text);
connection.sendPacket(msg);
messages.add(connection.getUser() + ":");
messages.add(text);
setListAdapter();
}
});
}
/**
* Called by Settings dialog when a connection is establised with the XMPP server
*
* @param connection
*/
public void setConnection
(XMPPConnection
connection) {
this.connection = connection;
if (connection != null) {
// Add a packet listener to get messages sent to us
PacketFilter filter = new MessageTypeFilter(Message.Type.chat);
connection.addPacketListener(new PacketListener() {
public void processPacket(Packet packet) {
Message message = (Message) packet;
if (message.getBody() != null) {
String fromName = StringUtils.parseBareAddress(message.getFrom());
Log.i("XMPPClient", "Got text [" + message.getBody() + "] from [" + fromName + "]");
messages.add(fromName + ":");
messages.add(message.getBody());
// Add the incoming message to the list view
mHandler.post(new Runnable() {
public void run() {
setListAdapter();
}
});
}
}
}, filter);
}
}
private void setListAdapter
() {
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
R.layout.multi_line_list_item,
messages);
mList.setAdapter(adapter);
}
}
SettingDialog.java
package org.apache.android.xmpp;
import android.app.Dialog;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.packet.Presence;
/**
* Gather the xmpp settings and create an XMPPConnection
*/
public class SettingsDialog extends Dialog implements android.view.View.OnClickListener {
private XMPPClient xmppClient;
public SettingsDialog(XMPPClient xmppClient) {
super(xmppClient);
this.xmppClient = xmppClient;
}
protected void onStart() {
super.onStart();
setContentView(R.layout.settings);
getWindow().setFlags(4, 4);
setTitle("XMPP Settings");
Button ok = (Button) findViewById(R.id.ok);
ok.setOnClickListener(this);
}
public void onClick(View v) {
String host = "10.0.2.2";//getText(R.id.host);
String port = "5222";//getText(R.id.port);
String service = "@domain";//getText(R.id.service);
final String username = "userid@domain";//getText(R.id.userid);
final String password = "password";//getText(R.id.password);
// Create a connection
ConnectionConfiguration connConfig =
new ConnectionConfiguration(host, Integer.parseInt(port), service);
final XMPPConnection connection = new XMPPConnection(connConfig);
new Thread(new Runnable()
{
public void run()
{
try {
connection.connect();
Log.i("XMPPClient", "[SettingsDialog] Connected to " + connection.getHost());
} catch (XMPPException ex) {
Log.e("XMPPClient", "[SettingsDialog] Failed to connect to " + connection.getHost());
Log.e("XMPPClient", ex.toString());
xmppClient.setConnection(null);
}
try {
connection.login(username, password);
Log.i("XMPPClient", "Logged in as " + connection.getUser());
// Set the status to available
Presence presence = new Presence(Presence.Type.available);
connection.sendPacket(presence);
xmppClient.setConnection(connection);
} catch (XMPPException ex) {
Log.e("XMPPClient", "[SettingsDialog] Failed to log in as " + username);
Log.e("XMPPClient", ex.toString());
xmppClient.setConnection(null);
}
}
}).start();
dismiss();
}
private String getText(int id) {
EditText widget = (EditText) this.findViewById(id);
return widget.getText().toString();
}
}
请任何人都可以提供帮助。