非英语文本正在转换为垃圾值

Question

在我的项目中，正在处理json以接收并向服务器发送响应。它适用于English个字母。

现在的问题是，当使用非英文字母（泰卢固语，泰米尔语或印地语）时，会自动将其转换为服务器端数据库中的垃圾值（??????????）。

调用服务器的示例方法：

        AsyncHttpClient mNewCaller = new AsyncHttpClient();
        mNewCaller.setTimeout(DEFAULT_TIMEOUT);

        final ProgressDialog mpd = new ProgressDialog(mContext);
        mpd.setTitle("Please wait");
        mpd.setMessage("Signing in");
        mpd.setCancelable(false);
        RequestParams mParams = new RequestParams();
        mParams.add(Constants.JSON_HEADER, obj1.toString());
        mParams.add(Constants.JSON_BODY, obj2.toString());
        // Pref.setValue(getApplicationContext(), Constants.PREF_IMEIID, uid);
        Log.e("login", mParams.toString());
        LayoutInflater layoutInflater = LayoutInflater.from(mContext);
        View promptView = layoutInflater.inflate(R.layout.device_name, null);
        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(mContext);
        alertDialogBuilder.setView(promptView);
        final EditText code = (EditText) promptView.findViewById(R.id.deviceName);
        alertDialogBuilder.setCancelable(false).setPositiveButton("Ok", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                authCode = code.getText().toString();
                sendDName(authCode, mContext);
            }
        }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.cancel();
            }
        });
        alertD = alertDialogBuilder.create();
        Constants.EMAIL_ID = email;

        String url = DynamicURL;
        mNewCaller.get(Login.DynamicURL, mParams, new JsonHttpResponseHandler() {

            @Override
            public void onStart() {
                super.onStart();
                if (mpd != null) {
                    mpd.show();
                }
            }

            @Override
            public void onSuccess(int statusCode, Header[] headers, String responseString) {
                super.onSuccess(statusCode, headers, responseString);
                Log.e("frag", responseString + " " + statusCode);
                if (mpd != null) {
                    mpd.dismiss();
                }
                if (responseString.equalsIgnoreCase("NODEVICENAME")) {
                    alertD.show();
                }
            }

            @Override
            public void onSuccess(int statusCode, Header[] headers, JSONObject response) {
                super.onSuccess(statusCode, headers, response);
                Constants.EMAIL_ID = email;
                Log.e("frag", response.toString() + " " + statusCode);
                JSONArray jAry = null;
                if (mpd != null) {
                    mpd.dismiss();
                }
                if (response.has(Constants.STATUS)) {
                    try {
                        if (response.getString(Constants.STATUS).equalsIgnoreCase("TABLOGINFAILED")) {
                            Snack.show(mContext, "Wrong email or password");
                            // Toast.makeText(getApplicationContext(), "Wrong email or password", Toast.LENGTH_LONG).show();
                            return;
                        }

                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                    try {
                        if (response.getString(Constants.STATUS).equalsIgnoreCase("NODEVICENAME")) {
                            alertD.show();
                            return;
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }

                try {
                    Constants.DEVICE_NAME = response.getString(Constants.DEVICENAME);
                    Constants.CUSTOMER_ID = response.getString("customerid");
                    jAry = response.getJSONArray(Constants.CAMPAIGN_LIST);

                    if (response.has("otpenabled")) {
                        Constants.OTP_ENABLED = response.getBoolean("otpenabled");
                        Constants.OTP_ENABLED = false;
                    }

                    Constants.PREF_JSONARRAY = jAry.toString();
                } catch (JSONException e) {
                    e.printStackTrace();
                }

                Constants.login = 1;
                intent = new Intent(Login.this, Home.class);
                startActivity(intent);
            }

            @Override
            public void onSuccess(int statusCode, Header[] headers, JSONArray response) {
                super.onSuccess(statusCode, headers, response);
                Log.e("frag", response.toString() + " " + statusCode);
                if (mpd != null) {
                    mpd.dismiss();
                }
                Log.e("frag", response.toString());
            }

            @Override
            public void onFailure(int statusCode, Header[] headers, String responseString, Throwable throwable) {
                super.onFailure(statusCode, headers, responseString, throwable);
                Log.e("frag", responseString + " " + statusCode);

                if (statusCode == 500) {

                    //   Snack.show(mContext, "Please try again with a valid email id");
                    new SweetAlertDialog(Login.this, SweetAlertDialog.ERROR_TYPE)
                            .setTitleText("User does not exist")
                            .setContentText("Please try again with a valid email id")
                            .show();

                }

                if (mpd != null) {
                    mpd.dismiss();
                }
                /*if (responseString.equalsIgnoreCase("FALSE")) {
                    alertD.show();
                }*/
            }

            @Override
            public void onFailure(int statusCode, Header[] headers, Throwable throwable, JSONObject errorResponse) {
                super.onFailure(statusCode, headers, throwable, errorResponse);
                Log.e("frag", statusCode + " failed obj");

                try {

                    if (statusCode == 0) {

                        new SweetAlertDialog(Login.this, SweetAlertDialog.ERROR_TYPE)
                                .setTitleText("Server Down")
                                .setContentText("Please try again later")
                                .show();

                    } else if (errorResponse.getString(Constants.STATUS).equalsIgnoreCase("NODEVICENAME")) {
                        alertD.show();
                        return;
                    } else if (errorResponse.getString(Constants.STATUS).equalsIgnoreCase("TABLOGINFAILED")) {
                        // Snack.show(mContext, "Please check your email or password");
                        new SweetAlertDialog(Login.this, SweetAlertDialog.ERROR_TYPE)
                                .setTitleText("Incorrect login details")
                                .setContentText("Please check your email or password")
                                .show();
                    } else {

                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }

                // Snack.show(mContext, "Wrong email or password");
                if (mpd != null) {
                    mpd.dismiss();
                }
            }

            @Override
            public void onFailure(int statusCode, Header[] headers, Throwable throwable, JSONArray
                    errorResponse) {
                super.onFailure(statusCode, headers, throwable, errorResponse);
                Log.e("frag", errorResponse.toString() + " " + statusCode);
                Snack.show(mContext, "Wrong email or password");
                if (mpd != null) {
                    mpd.dismiss();
                }
            }
        });