XMPP和Android执行doInBackground（）时出错 [英] XMPP and Android An error occured while executing doInBackground()

问题描述

我是XMPP的新手请指导我如何使用android在xmpp中发送和接收iq数据包。这是我的代码。当我调试我的代码时它会给我这个日志错误



06-12 16：08：22.032：E / AndroidRuntime（4063）：致命异常： AsyncTask＃1

06-12 16：08：22.032：E / AndroidRuntime（4063）：java.lang.RuntimeException：执行doInBackground时发生错误（）

06-12 16：08：22.032：E / AndroidRuntime（4063）：在android.os.AsyncTask $ 3.done（AsyncTask.java:299）

06-12 16:08： 22.032：E / AndroidRuntime（4063）：at java.util.concurrent.FutureTask.finishCompletion（FutureTask.java:352)

06-12 16：08：22.032：E / AndroidRuntime（4063）： at java.util.concurrent.FutureTask.setException（FutureTask.java:219)

06-12 16：08：22.032：E / AndroidRuntime（4063）：at java.util.concurrent.FutureTask。 run（FutureTask.java:239）

06-12 16：08：22.032：E / AndroidRuntime（4063）：在android.os.AsyncTask $ SerialExecutor $ 1.run（AsyncTask.java:230）

06-12 16：08：22.032：E / AndroidRuntime（4063）：at java.util.concurrent.ThreadPoolExecutor.runWorker（Thre adPoolExecutor.java:1080)

06-12 16：08：22.032：E / AndroidRuntime（4063）：at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:573）

06-12 16：08：22.032：E / AndroidRuntime（4063）：at java.lang.Thread.run（Thread.java:856)

06-12 16 ：08：22.032：E / AndroidRuntime（4063）：引起：java.lang.ClassCastException：java.lang.Object []无法强制转换为java.lang.String []

06-12 16：08：22.032：E / AndroidRuntime（4063）：at com.example.xmppclient.MyTask.doInBackground（MyTask.java:1）

06-12 16：08：22.032：E / AndroidRuntime （4063）：在android.os.AsyncTask $ 2.call（AsyncTask.java:287)

06-12 16：08：22.032：E / AndroidRuntime（4063）：at java.util.concurrent .FutureTask.run（FutureTask.java:234）

06-12 16：08：22.032：E / AndroidRuntime（4063）：... 4更多

06- 12 16：08：23.982：I / Choreographer（4063）：跳过98帧！应用程序可能在其主线程上做了太多工作。

06-12 16：08：25.391：I / Choreographer（4063）：跳过59帧！应用程序可能在其主线程上做了太多工作。



这是我的代码

 protected String doInBackground （String ... urls）
 {
 String host =web.vlivetech.com; //getText(R.id.host）; 
 String port =5222; //getText(R.id.port）; 
 String service =web.vlivetech.com; //getText(R.id.service）; 
 String username =has12345; //getText(R.id.userid）; 
 String password =123; //getText(R.id.password）; 
 
 //创建连接
 ConnectionConfiguration connConfig = 
 new ConnectionConfiguration（host，Integer.parseInt（port），service）; 
 XMPPConnection connection = new XMPPConnection（connConfig）; 
 
 try {
 connection.connect（）; 
 Log.i（XMPPClient，[SettingsDialog]已连接到+ connection.getHost（））; 
} catch（XMPPException ex）{
 Log.e（XMPPClient，[SettingsDialog]无法连接到+ connection.getHost（））; 
 MainActivity.setConnection（null）; 
} 
试试{
 connection.login（用户名，密码）; 
 Log.i（XMPPClient，登录为+ connection.getUser（））; 
 
 //将状态设置为可用
 Presence presence = new Presence（Presence.Type.available）; 
 connection.sendPacket（在场）; 
 MainActivity.setConnection（connection）; 
} catch（XMPPException ex）{
 Log.e（XMPPClient，[SettingsDialog]无法以+ username身份登录）; 
 MainActivity.setConnection（null）; 
} 
 
返回null; 
} 

解决方案

3.done（AsyncTask.java:299）

06-12 16：08：22.032：E / AndroidRuntime（4063）：at java.util.concurrent.FutureTask.finishCompletion（FutureTask.java:352)

06-12 16：08：22.032：E / AndroidRuntime （4063）：at java.util.concurrent.FutureTask.setException（FutureTask.java:219)

06-12 16：08：22.032：E / AndroidRuntime（4063）：at java.util。 concurrent.FutureTask.run（FutureTask.java:239）

06-12 16：08：22.032：E / AndroidRuntime（4063）：在android.os.AsyncTask

SerialExecutor

1.run（AsyncTask.java:230)

06-12 16：08：22.032：E / AndroidRuntime（4063）：at java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1080)

06-12 16：08：22.032：E / AndroidRuntime（4063）：at java.util.concurrent.ThreadPoolExecutor

I am new to XMPP please guide me how to send and receive iq packets in xmpp using android. Here is my code. when i debug my code it will give me this log error

06-12 16:08:22.032: E/AndroidRuntime(4063): FATAL EXCEPTION: AsyncTask #1
06-12 16:08:22.032: E/AndroidRuntime(4063): java.lang.RuntimeException: An error occured while executing doInBackground()
06-12 16:08:22.032: E/AndroidRuntime(4063): at android.os.AsyncTask$3.done(AsyncTask.java:299)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.FutureTask.run(FutureTask.java:239)
06-12 16:08:22.032: E/AndroidRuntime(4063): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.lang.Thread.run(Thread.java:856)
06-12 16:08:22.032: E/AndroidRuntime(4063): Caused by: java.lang.ClassCastException: java.lang.Object[] cannot be cast to java.lang.String[]
06-12 16:08:22.032: E/AndroidRuntime(4063): at com.example.xmppclient.MyTask.doInBackground(MyTask.java:1)
06-12 16:08:22.032: E/AndroidRuntime(4063): at android.os.AsyncTask$2.call(AsyncTask.java:287)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
06-12 16:08:22.032: E/AndroidRuntime(4063): ... 4 more
06-12 16:08:23.982: I/Choreographer(4063): Skipped 98 frames! The application may be doing too much work on its main thread.
06-12 16:08:25.391: I/Choreographer(4063): Skipped 59 frames! The application may be doing too much work on its main thread.

Here is my code

protected String doInBackground(String... urls) 
	     {  
        String host = "web.vlivetech.com";                                  //getText(R.id.host);
        String port =  "5222";                                             //getText(R.id.port);
        String service = "web.vlivetech.com";                             //getText(R.id.service);
        String username =  "has12345";                                   //getText(R.id.userid);
        String password =   "123";                                      //getText(R.id.password);

        // Create a connection
	        ConnectionConfiguration connConfig =
	        		new ConnectionConfiguration(host, Integer.parseInt(port), service);
	        XMPPConnection connection = new XMPPConnection(connConfig);

	        try {
	            connection.connect();
	            Log.i("XMPPClient", "[SettingsDialog] Connected to " + connection.getHost());
	        } catch (XMPPException ex) {
	            Log.e("XMPPClient", "[SettingsDialog] Failed to connect to " + connection.getHost());
	            MainActivity.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);
	            MainActivity.setConnection(connection);
	        } catch (XMPPException ex) {
	            Log.e("XMPPClient", "[SettingsDialog] Failed to log in as " + username);
	            MainActivity.setConnection(null);
	        }

	      return null;
	    }

解决方案

3.done(AsyncTask.java:299)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.FutureTask.run(FutureTask.java:239)
06-12 16:08:22.032: E/AndroidRuntime(4063): at android.os.AsyncTask

SerialExecutor

1.run(AsyncTask.java:230)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
06-12 16:08:22.032: E/AndroidRuntime(4063): at java.util.concurrent.ThreadPoolExecutor

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