java - Android smack 4.1 连接问题

Question

我正在尝试使用 Smack 在 android 中与 GoogleTalk 建立连接。我已经按照互联网上的许多教程示例进行操作，但我似乎仍然无法使其正常工作。

public static final String HOST = "talk.google.com";

public static final int PORT = 5222;
public static final String SERVICE = "gmail.com";
public static final String USERNAME = "myemail@gmail.com";
public static final String PASSWORD = "mypassword";

我的上述凭据是正确的...

 XMPPTCPConnectionConfiguration.Builder connConfig = XMPPTCPConnectionConfiguration.builder();
   connConfig.setSecurityMode(ConnectionConfiguration.SecurityMode.required);
   connConfig.setUsernameAndPassword(USERNAME, PASSWORD);
   connConfig.setServiceName(SERVICE);
   connConfig.setHost(HOST);
   connConfig.setPort(PORT);
   connConfig.setDebuggerEnabled(true);
   //setCompressionEnabled(false).build();
   //(HOST, PORT, SERVICE);
   XMPPTCPConnection connection = new  XMPPTCPConnection(connConfig.build());
     try {
       connection.connect();
       Log.i("XMPPChatDemoActivity",  "[SettingsDialog] Connected to "+connection.getHost());
     } catch (XMPPException ex) {
         Log.e("XMPPChatDemoActivity",  "[SettingsDialog] Failed to connect to "+ connection.getHost());
         Log.e("XMPPChatDemoActivity", ex.toString());
         setConnection(null);
     }
     catch(SmackException ex){
         Log.e("XMPPChatDemoActivity",  "[SettingsDialog] Failed to connect to "+ connection.getHost());
         Log.e("XMPPChatDemoActivity", ex.toString());
         setConnection(null);
     }
     catch(IOException ex){
         Log.e("XMPPChatDemoActivity",  "[SettingsDialog] Failed to connect to "+ connection.getHost());
         Log.e("XMPPChatDemoActivity", ex.toString());
         setConnection(null);
     }

我得到 java.lang.ExceptionInInitializeError

在这条线上

XMPPTCPConnectionConfiguration.Builder connConfig = XMPPTCPConnectionConfiguration.builder();//第 184 行

这是完整的堆栈跟踪:

 FATAL EXCEPTION: Thread-120
java.lang.ExceptionInInitializerError
at com.example.samsungchatexample.MainActivity$4.run(MainActivity.java:184)
at java.lang.Thread.run(Thread.java:856)
Caused by: java.lang.ExceptionInInitializerError
at org.jivesoftware.smack.SmackConfiguration.getVersion(SmackConfiguration.java:96)
at org.jivesoftware.smack.ConnectionConfiguration.<clinit>(ConnectionConfiguration.java:38)

Caused by: java.lang.ExceptionInInitializerError
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:217)
at org.jivesoftware.smack.SmackInitialization.loadSmackClass(SmackInitialization.java:213)
at org.jivesoftware.smack.SmackInitialization.parseClassesToLoad(SmackInitialization.java:193)
at org.jivesoftware.smack.SmackInitialization.processConfigFile(SmackInitialization.java:163)
at org.jivesoftware.smack.SmackInitialization.processConfigFile(SmackInitialization.java:148)
at org.jivesoftware.smack.SmackInitialization.<clinit>(SmackInitialization.java:116)

Caused by: java.lang.NoClassDefFoundError: javax.naming.directory.InitialDirContext
at org.jivesoftware.smack.util.dns.javax.JavaxResolver.<clinit>(JavaxResolver.java:50)

有人可以帮我解决这个问题吗？我已经在 KitKat 和 JellyBean 上测试过了两者都有相同的异常，因此这不是操作系统版本上下文的故障。我错过了什么？

Answer 1

我在使用 SMACK 4.1 建立连接时确实遇到了问题。当我包含下面提到的所有这些库时，我就成功地建立了连接。试一试 :) 希望你成功。

1. jxmpp-core-0.4.1
2. jxmpp-util-cache-0.4.1
3. minidns-0.1.1
4. smack-android-4.1.0.jar
5. smack-android-extensions-4.1.0
6. smack-core-4.1.0
7. smack-extensions-4.1.0
8. smack-im-4.1.0
9. smack-tcp-4.1.0