我开始学习android的编程。我正在尝试将Android应用程序连接到启用SSL的服务器。我以文章为例。（http://adblogcat.com/ssl-sockets-android-and-server-using-a-certificate/）。我发生错误，程序以“不幸停止”字样终止
这是我的代码：
public class MainActivity extends ActionBarActivity {
/* Called when the activity is first created. */
EditText iptxt;
Button sendbtn;
TextView logtxt;
EditText porttxt;
EditText cmdtxt;
// port to use
private String ip_address;
private int port = 1992;
private String cmdstr = null;
private SSLSocket socket = null;
private BufferedWriter out = null;
private BufferedReader in = null;
private final String TAG = "TAG";
private String keystorepass = "mypasswordisCOOL!";
private String keypassword = "mypasswordRULEZ@";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iptxt = (EditText) findViewById(R.id.iptxt);
porttxt = (EditText) findViewById(R.id.porttxt);
cmdtxt = (EditText) findViewById(R.id.cmdtxt);
logtxt = (TextView) findViewById(R.id.logtxt);
sendbtn = (Button) findViewById(R.id.sendbtn);
sendbtn.setClickable(true);
sendbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (iptxt.getText().toString().equals(null) || porttxt.getText().toString().equals(null)) {
Toast.makeText(v.getContext(), "Please enter an IP address or Port number", Toast.LENGTH_LONG).show();
} else {
cmdstr = cmdtxt.getText().toString();
if (cmdstr == null) {
Toast.makeText(v.getContext(), "No command was entered", Toast.LENGTH_LONG).show();
}
Log.i(TAG, "makes it to here");
port = Integer.parseInt(porttxt.getText().toString());
ip_address = iptxt.getText().toString();
try {
KeyStore ks = KeyStore.getInstance("BKS");
InputStream key = v.getResources().openRawResource(R.raw.mykeyandroid);
ks.load(key,keystorepass.toCharArray());
SSLSocketFactory socketFactory = new SSLSocketFactory(ks);
socketFactory.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
socket = (SSLSocket)
socketFactory.createSocket(new Socket(ip_address,port), ip_address, port, false);
socket.startHandshake();
out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
chat(cmdstr);
key.close();
in.close();
out.close();
socket.close();
} catch (UnknownHostException e) {
Toast.makeText(v.getContext(), "Unknown host", Toast.LENGTH_SHORT).show();
Log.i(TAG, "Unknown host");
//System.exit(1);
} catch (IOException e) {
Toast.makeText(v.getContext(), "No I/O", Toast.LENGTH_SHORT).show();
Log.i(TAG, "No I/O");
e.printStackTrace();
//System.exit(1);
} catch (KeyStoreException e) {
Toast.makeText(v.getContext(), "Keystore ks error", Toast.LENGTH_SHORT).show();
Log.i(TAG, "Keystore ks error");
//System.exit(-1);
} catch (NoSuchAlgorithmException e) {
Toast.makeText(v.getContext(), "No such algorithm for ks.load", Toast.LENGTH_SHORT).show();
Log.i(TAG, "No such algorithm for ks.load");
e.printStackTrace();
//System.exit(-1);
} catch (CertificateException e) {
Toast.makeText(v.getContext(), "certificate missing", Toast.LENGTH_SHORT).show();
Log.i(TAG, "certificate missing");
e.printStackTrace();
//System.exit(-1);
} catch (KeyManagementException e) {
Toast.makeText(v.getContext(), "KeyManagementException", Toast.LENGTH_SHORT).show();
Log.i(TAG, "key management exception");
e.printStackTrace();
//System.exit(-1);
} catch (UnrecoverableKeyException e) {
Toast.makeText(v.getContext(), "UnrecoverableKeyException", Toast.LENGTH_SHORT).show();
Log.i(TAG,"unrecoverableKeyException");
e.printStackTrace();
}
}
}
});
}
public void chat(String temp){
String message = temp;
String line = "";
// send id of the device to match with the image
try {
out.write(message);
out.flush();
} catch (IOException e2) {
Log.i(TAG,"Read failed");
System.exit(1);
}
// receive a ready command from the server
try {
line = in.readLine();
logtxt.setText("SERVER SAID: " + line);
} catch (IOException e1) {
Log.i(TAG,"Read failed");
System.exit(1);
}
}
}
这是日志：
06-05 22:30:17.553 543-543/ru.nightvolks.nvclienttls.application D/dalvikvm﹕ Not late-enabling CheckJNI (already on)
06-05 22:30:17.874 543-543/ru.nightvolks.nvclienttls.application W/ActivityThread﹕ Application ru.nightvolks.nvclienttls.application is waiting for the debugger on port 8100...
06-05 22:30:17.903 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ Sending WAIT chunk
06-05 22:30:18.163 543-550/ru.nightvolks.nvclienttls.application I/dalvikvm﹕ Debugger is active
06-05 22:30:18.305 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ Debugger has connected
06-05 22:30:18.305 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ waiting for debugger to settle...
06-05 22:30:18.502 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ waiting for debugger to settle...
06-05 22:30:18.702 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ waiting for debugger to settle...
06-05 22:30:18.912 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ waiting for debugger to settle...
06-05 22:30:19.114 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ waiting for debugger to settle...
06-05 22:30:19.312 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ waiting for debugger to settle...
06-05 22:30:19.516 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ waiting for debugger to settle...
06-05 22:30:19.717 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ waiting for debugger to settle...
06-05 22:30:19.918 543-543/ru.nightvolks.nvclienttls.application I/System.out﹕ debugger has settled (1340)
06-05 22:30:21.642 543-543/ru.nightvolks.nvclienttls.application D/gralloc_goldfish﹕ Emulator without GPU emulation detected.
06-05 22:30:21.722 543-543/ru.nightvolks.nvclienttls.application W/TextLayoutCache﹕ computeValuesWithHarfbuzz -- need to force to single run
06-05 22:30:43.273 543-543/ru.nightvolks.nvclienttls.application I/TAG﹕ makes it to here
06-05 22:30:43.273 543-543/ru.nightvolks.nvclienttls.application D/AndroidRuntime﹕ Shutting down VM
06-05 22:30:43.282 543-543/ru.nightvolks.nvclienttls.application W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x409961f8)
从文章中获取的服务器代码。请帮助我纠正错误。