如何在安卓上使用 Smack
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【中文标题】如何在安卓上使用 Smack【英文标题】：How to use Smack with android 【发布时间】：2015-09-01 13:00:47 【问题描述】：我有以下代码使用 smack 4.1.0 与 xmpp 服务器 im.koderoot.net 连接，此主机/服务适用于我使用 smack3.1.0 和 smacx3.1.0 的 java 应用程序，但在我使用 java 时我正在使用它抛出以下异常的罐子
09-01 18:29:18.921: E/SMACK EXCEPTION(1577): org.jivesoftware.smack.SmackException$ConnectionException: The following addresses failed: im.koderoot.net:5222 Exception: null
MainActivity.java
package com.example.zzxmpp;
import java.io.IOException;
import org.jivesoftware.smack.ConnectionListener;
import org.jivesoftware.smack.SmackException;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.tcp.XMPPTCPConnection;
import org.jivesoftware.smack.tcp.XMPPTCPConnectionConfiguration;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener
private XMPPTCPConnection mConnection;
private Button connect;
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
connect = (Button) findViewById(R.id.button1);
connect.setOnClickListener(this);
@Override
public void onClick(View v)
// TODO Auto-generated method stub
XMPPTCPConnectionConfiguration.XMPPTCPConnectionConfigurationBuilder builder = XMPPTCPConnectionConfiguration.builder();
builder.setServiceName("im.koderoot.net");
builder.setPort(5222);
builder.setResource("SmackAndroidTestClient");
builder.setUsernameAndPassword("xxxx", "xxxx");
builder.setRosterLoadedAtLogin(true);
mConnection = new XMPPTCPConnection(builder.build());
//Set ConnectionListener here to catch initial connect();
// mConnection.addConnectionListener(this);
try
mConnection.connect();
mConnection.login();
Toast.makeText(getApplicationContext(), "Sucess", Toast.LENGTH_LONG).show();
catch (SmackException e)
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(getApplicationContext(), "Smack Exception"+e, Toast.LENGTH_LONG).show();
catch (IOException e)
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(getApplicationContext(), "IO Exception"+e, Toast.LENGTH_LONG).show();
catch (XMPPException e)
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(getApplicationContext(), "XMPP Exception"+e, Toast.LENGTH_LONG).show();
我在项目中有以下 .jar 文件
smack-android-4.1.0-alpha6.jar
smack-tcp-4.1.0-alpha6.jar
minidns-0.1.1.jar
smack-sasl-provided-4.1.0-alpha6.jar
smack-core-4.1.0-alpha6.jar
smack-resolver-minidns-4.1.0-alpha6.jar
jxmpp-util-cache-0.4.0-alpha2.jar
jxmpp-core-0.4.0.jar
我自己找到了以下可行的解决方案
用 asmack-2010.05.07.jar 和 asmack-jse-buddycloud-2010.12.11.jar 替换所有 jar 文件
并将代码更改为以下
package com.demo.xmppchat;
import java.util.ArrayList;
import java.util.Collection;
import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.Roster;
import org.jivesoftware.smack.RosterEntry;
import org.jivesoftware.smack.SASLAuthentication;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
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.packet.Presence;
import org.jivesoftware.smack.util.StringUtils;
import android.app.Activity;
import android.app.ProgressDialog;
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;
public class XMPPChatDemoActivity extends Activity
public static final String HOST = "im.koderoot.net";
public static final int PORT = 5222;
//public static final String SERVICE = "slogin.oscar.aol.com";
public static final String USERNAME = "XXXXXXX";
public static final String PASSWORD = "XXXXXX";
private XMPPConnection connection;
private ArrayList<String> messages = new ArrayList<String>();
private Handler mHandler = new Handler();
private EditText recipient;
private EditText textMessage;
private ListView listview;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
recipient = (EditText) this.findViewById(R.id.toET);
textMessage = (EditText) this.findViewById(R.id.chatET);
listview = (ListView) this.findViewById(R.id.listMessages);
setListAdapter();
// Set a listener to send a chat text message
Button send = (Button) this.findViewById(R.id.sendBtn);
send.setOnClickListener(new View.OnClickListener()
public void onClick(View view)
String to = recipient.getText().toString();
String text = textMessage.getText().toString();
Log.i("XMPPChatDemoActivity", "Sending text " + text + " to " + to);
Message msg = new Message(to, Message.Type.chat);
msg.setBody(text);
if (connection != null)
connection.sendPacket(msg);
messages.add(connection.getUser() + ":");
messages.add(text);
setListAdapter();
);
connect();
/**
* Called by Settings dialog when a connection is established 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()
@Override
public void processPacket(Packet packet)
Message message = (Message) packet;
if (message.getBody() != null)
String fromName = StringUtils.parseBareAddress(message
.getFrom());
Log.i("XMPPChatDemoActivity", "Text Recieved " + 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.listitem, messages);
listview.setAdapter(adapter);
@Override
protected void onDestroy()
super.onDestroy();
try
if (connection != null)
connection.disconnect();
catch (Exception e)
public void connect()
final ProgressDialog dialog = ProgressDialog.show(this,
"Connecting...", "Please wait...", false);
Thread t = new Thread(new Runnable()
@Override
public void run()
// Create a connection
ConnectionConfiguration connConfig = new ConnectionConfiguration(
HOST, PORT);//, SERVICE);
XMPPConnection connection = new XMPPConnection(connConfig);
try
connection.connect();
Log.i("XMPPChatDemoActivity",
"Connected to " + connection.getHost());
catch (XMPPException ex)
Log.e("XMPPChatDemoActivity", "Failed to connect to "
+ connection.getHost());
Log.e("XMPPChatDemoActivity", ex.toString());
setConnection(null);
try
SASLAuthentication.supportSASLMechanism("PLAIN", 0);
connection.login(USERNAME, PASSWORD);
Log.i("XMPPChatDemoActivity",
"Logged in as " + connection.getUser());
// Set the status to available
Presence presence = new Presence(Presence.Type.available);
connection.sendPacket(presence);
setConnection(connection);
Roster roster = connection.getRoster();
Collection<RosterEntry> entries = roster.getEntries();
for (RosterEntry entry : entries)
Log.d("XMPPChatDemoActivity",
"--------------------------------------");
Log.d("XMPPChatDemoActivity", "RosterEntry " + entry);
Log.d("XMPPChatDemoActivity",
"User: " + entry.getUser());
Log.d("XMPPChatDemoActivity",
"Name: " + entry.getName());
Log.d("XMPPChatDemoActivity",
"Status: " + entry.getStatus());
Log.d("XMPPChatDemoActivity",
"Type: " + entry.getType());
Presence entryPresence = roster.getPresence(entry
.getUser());
Log.d("XMPPChatDemoActivity", "Presence Status: "
+ entryPresence.getStatus());
Log.d("XMPPChatDemoActivity", "Presence Type: "
+ entryPresence.getType());
Presence.Type type = entryPresence.getType();
if (type == Presence.Type.available)
Log.d("XMPPChatDemoActivity", "Presence AVIALABLE");
Log.d("XMPPChatDemoActivity", "Presence : "
+ entryPresence);
catch (XMPPException ex)
Log.e("XMPPChatDemoActivity", "Failed to log in as "
+ USERNAME);
Log.e("XMPPChatDemoActivity", ex.toString());
setConnection(null);
dialog.dismiss();
);
t.start();
dialog.show();
【问题讨论】：
【参考方案1】：无法访问主机时抛出ConnectionException。
检查以下内容可能会对您有所帮助。
-
忘记在清单文件中添加权限（我经常这样做）
使用权限 android:name="android.permission.INTERNET"
-
检查它是否可以从您的 Android 设备 ping im.koderoot.net
添加 e.printStackTrace(); at exception catch 会给出更多提示
我刚刚在im.koderoot.net注册，使用smack4.1.3连接没有问题。
还有一点就是你的代码长期会导致ANR（Application Not Responding），不过这是另外一个话题了。
【讨论】：
我已经在清单文件中拥有互联网权限，我也将 smack 版本从 4.1.0 更改为 4.1.3，但仍然无法正常工作并抛出 java.lang.NoClassDefFoundError: org.jivesoftware.smack.tcp .XMPPTCPConnectionConfiguration 异常 我对程序进行了更改以使其正常运行。我使用了定制的 asmack（asmack-2010.05.07.jar 和 asmack-jse-buddycloud-2010.12.11.jar）并将代码更改为有问题的更新代码以上是关于如何在安卓上使用 Smack的主要内容，如果未能解决你的问题，请参考以下文章
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