Android：使用ouchbase进行用户注册

Question

我一直在使用此示例作为指导，以允许用户注册我的应用程序，但它不起作用。 没有语法错误，但是由于某些原因我的应用程序无法与服务器通信。 以下是我正在使用的SignupActivity.java：

public class SignupActivity extends AppCompatActivity implements View.OnTouchListener {

public static final String DB_NAME = "myapp";

private Database mDatabase = null;

@Bind(R.id.input_name) EditText _nameText;
@Bind(R.id.input_firstname) EditText _firstnameText;
@Bind(R.id.input_lastname) EditText _lastnameText;
@Bind(R.id.input_confirmpassword) EditText _confirmpasswordText;
@Bind(R.id.input_email) EditText _emailText;
@Bind(R.id.input_password) EditText _passwordText;
@Bind(R.id.btn_signup) Button _signupButton;
@Bind(R.id.link_login) TextView _loginLink;
@Bind(R.id.ScrollViewSignup)    ScrollView _scrollLayout;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_signup);
ButterKnife.bind(this);

_signupButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        MyUtilities.hideSoftKey(SignupActivity.this,v);
        signup();
    }
});

_loginLink.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        // Finish the registration screen and return to the Login activity
        finish();
    }
});
_scrollLayout.setOnTouchListener(this);

// Create a manager
Manager manager = null;
try {
    manager = new Manager(new AndroidContext(getApplicationContext()), Manager.DEFAULT_OPTIONS);
} catch (IOException e) {
    e.printStackTrace();
}

// Create or open the database named app
Database database = null;
try {
    database = manager.getDatabase(DB_NAME);
} catch (CouchbaseLiteException e) {
    e.printStackTrace();
}

// The properties that will be saved on the document
Map<String, Object> properties = new HashMap<String, Object>();
properties.put("name", _nameText);
properties.put("password", _passwordText);
properties.put("firstname", _firstnameText);
properties.put("surname", _lastnameText);
properties.put("email", _emailText);


// Create a new document
Document document = database.createDocument();

// Save the document to the database
try {
    document.putProperties(properties);
} catch (CouchbaseLiteException e) {
    e.printStackTrace();
}

// Log the document ID (generated by the database)
// and properties
Log.d(DB_NAME, String.format("Document ID :: %s", document.getId()));
Log.d(DB_NAME, String.format("Learning %s with %s %s %s %s", (String) document.getProperty("name"), (String) document.getProperty("password"),(String) document.getProperty("firstname"),
        (String) document.getProperty("surname"), (String) document.getProperty("email") ));

// Create replicators to push & pull changes to & from Sync Gateway.
URL url = null;
try {
    url = new URL("http://serverurl:8080/REST-Model-context-root/resources/register");
} catch (MalformedURLException e) {
    e.printStackTrace();
}
Replication push = database.createPushReplication(url);
push.setContinuous(true);

// Start replicators
push.start();
}

public void signup() {

if (!validate()) {
    onSignupFailed();
    return;
}

_signupButton.setEnabled(false);

final ProgressDialog progressDialog = new ProgressDialog(SignupActivity.this,
        R.style.AppTheme_Dark_Dialog);
progressDialog.setIndeterminate(true);
progressDialog.setMessage("Creating Account...");
progressDialog.show();

String name = _nameText.getText().toString();
String email = _emailText.getText().toString();
String password = _passwordText.getText().toString();


new android.os.Handler().postDelayed(
        new Runnable() {
            public void run() {
                // On complete call either onSignupSuccess or onSignupFailed
                // depending on success
                onSignupSuccess();
                progressDialog.dismiss();
            }
        }, 3000);
}


public void onSignupSuccess() {
_signupButton.setEnabled(true);
setResult(RESULT_OK, null);
finish();
}

public void onSignupFailed() {
Toast.makeText(getBaseContext(), "Login failed", Toast.LENGTH_LONG).show();

_signupButton.setEnabled(true);
}

public boolean validate() {
boolean valid = true;

String name = _nameText.getText().toString();
String email = _emailText.getText().toString();
String password = _passwordText.getText().toString();

if (name.isEmpty() || name.length() < 3) {
    _nameText.setError("at least 3 characters");
    valid = false;
} else {
    _nameText.setError(null);
}

if (email.isEmpty() || !android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches()) {
    _emailText.setError("enter a valid email address");
    valid = false;
} else {
    _emailText.setError(null);
}

if (password.isEmpty() || password.length() < 4 || password.length() > 10) {
    _passwordText.setError("between 4 and 10 alphanumeric characters");
    valid = false;
} else {
    _passwordText.setError(null);
}

return valid;
}

@Override
public boolean onTouch(View v, MotionEvent event) {

MyUtilities.hideSoftKey(SignupActivity.this,v);
return true;
  }
}

任何想法将不胜感激！