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你好我運行谷歌的聊天應用程序，並且下面是代碼Android的「無級DEFF查找錯誤：org.jivesoftware.smack.ConnectionConfiguration」
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Collection;
import javax.net.ssl.SSLContext;
import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.ConnectionConfiguration.SecurityMode;
import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.Roster;
import org.jivesoftware.smack.RosterEntry;
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.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
public class FacebookChatActivity extends Activity implements OnClickListener {
private ArrayList<String> messages = new ArrayList();
private Handler mHandler = new Handler();
private EditText mRecipient;
private EditText mSendText;
private ListView mList;
private XMPPConnection mConnection;
private String mHost, mPort, mService, mUsername, mPassword;
private ConnectionConfiguration mConnConfig;
private String TAG;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initLayout();
initGtalk();
// initFB();
//
// Create a connection
createConnection();
// login
loginToXMPP();
}
void initLayout() {
Log.i("XMPPClient", "onCreate called");
setContentView(R.layout.activity_facebook_chat);
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);
// Set a listener to send a chat text message
Button send = (Button) this.findViewById(R.id.send);
send.setOnClickListener(this);
setListAdapter();
}
void initGtalk() {
mHost = "talk.google.com";
mPort = "5222";
mService = "gmail";
mUsername = "[email protected]";
mPassword = "password";
// Set Default recipients for Gtalk
mRecipient.setText("[email protected]");
}
void initFB() {
mHost = "chat.facebook.com";
mPort = "5222";
mService = "xmpp";
mUsername = "[email protected]";
mPassword = "password";
// Set Default recipients for FB
mRecipient.setText("[email protected]");
}
void createConnection() {
mConnConfig = new ConnectionConfiguration(mHost,
Integer.parseInt(mPort), mService);
mConnConfig.setSecurityMode(SecurityMode.required);
mConnConfig.setSASLAuthenticationEnabled(true);
mConnection = new XMPPConnection(mConnConfig);
try {
mConnection.connect();
Log.i("XMPPClient",
"[SettingsDialog] Connected to " + mConnection.getHost());
} catch (XMPPException ex) {
Log.e("XMPPClient", "[SettingsDialog] Failed to connect to "
+ mConnection.getHost());
Log.e("XMPPClient", ex.toString());
setConnection(null);
}
}
void loginToXMPP() {
try {
mConnection.login(mUsername, mPassword);
Log.i("XMPPClient", "Logged in as " + mConnection.getUser());
// Set the status to available
Presence presence = new Presence(Presence.Type.available);
mConnection.sendPacket(presence);
setConnection(mConnection);
} catch (XMPPException ex) {
Log.e("XMPPClient", "[SettingsDialog] Failed to log in as "
+ mUsername);
Log.e("XMPPClient", ex.toString());
setConnection(null);
}
}
/* * Called by Settings dialog when a connection is established with the XMPP
* server
*
* @param connection*/
public void setConnection(XMPPConnection connection) {
this.mConnection = 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);
}
public void onClick(View v) {
if (v.getId() == R.id.send) {
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);
mConnection.sendPacket(msg);
messages.add(mConnection.getUser() + ":");
messages.add(text);
setListAdapter();
}
}
}
當我運行這段代碼我得到
11-26 16:20:15.283: E/dalvikvm(595): Could not find class org.jivesoftware.smack.ConnectionConfiguration', referenced from method com.example.sarojfacebookchat.FacebookChatActivity.createConnection
任何人都可以解釋我關於這個錯誤，如果需要請建議我正確的代碼。 我已經包括asmack2010.05.07.jar到我的項目
你能看到項目propeties-> java build path-> libraries標籤下添加了jar嗎？ – juned
也檢查用戶對jar的權限。 – GamDroid