android - 解析中に Android Google-Shopping API が強制終了する

Question

動作していると思われる次の静的メソッドを使用して、Google-Shopping API にリクエストを送信しようとしています。

public static String GET_TITLE(String url) throws JSONException {

    InputStream is = null;
    String result = "";
    JSONObject jArray = null;

    // http post
    try {
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(url);
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity entity = response.getEntity();
            is = entity.getContent();

    } catch(Exception e) {
            Log.e("log_tag", "Error in http connection "+e.toString());
    }

私が渡している URL は次のとおりです。

次に、同じ方法でこの応答 (問題が発生すると思われる場所) を解析しようとします。

    try {
        jArray = new JSONObject(result);            
    } catch(JSONException e){
        Log.e("log_tag", "Error parsing data "+e.toString());
    }

    JSONObject itemObject = jArray.getJSONObject("items");
    JSONObject productObject = itemObject.getJSONObject("product");

    String attributeGoogleId = productObject.getString("googleId");
    String attributeProviderId = productObject.getString("providerId");
    String attributeTitle = productObject.getString("title");*/
    String attributePrice = productObject.getString("price");
    JSONObject popupObject = productObject.getJSONObject("popup");

        return attributeTitle;
    }

これはとてもイライラします。シンプルであるべきだとわかっていますが、どこを見てもうまく動作しません。HTC Desire でテストしているので、エラーの原因が正確にはわかりません。起動時に「無効なコマンドラインパラメーター」エラーが発生しますが、それは別の問題です。とにかく、事前に感謝します!

編集：

最初のものは、URL に問題があるように見えます。変更して、違いがあるかどうかを確認する必要がありますか?

04-01 12:09:05.142: ERROR/log_tag(24968): Error in http connection java.net.UnknownHostException: www.googleapis.com
04-01 12:09:05.142: ERROR/log_tag(24968): Error converting result java.lang.NullPointerException
04-01 12:09:05.142: ERROR/log_tag(24968): Error parsing data org.json.JSONException: End of input at character 0 of 
04-01 12:09:05.142: DEBUG/AndroidRuntime(24968): Shutting down VM
04-01 12:09:05.142: WARN/dalvikvm(24968): threadid=1: thread exiting with uncaught exception (group=0x400259f8)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): FATAL EXCEPTION: main
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=0, result=-1, data=Intent {     act=com.google.zxing.client.android.SCAN flg=0x80000 (has extras) }} to activity     {com.spectrum.stock/com.spectrum.stock.CaptureActivity}: java.lang.NullPointerException
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at android.app.ActivityThread.deliverResults(ActivityThread.java:3734)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3776)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at android.app.ActivityThread.access$2800(ActivityThread.java:135)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2166)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at android.os.Handler.dispatchMessage(Handler.java:99)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at android.os.Looper.loop(Looper.java:144)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at android.app.ActivityThread.main(ActivityThread.java:4937)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at java.lang.reflect.Method.invokeNative(Native Method)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at java.lang.reflect.Method.invoke(Method.java:521)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at dalvik.system.NativeStart.main(Native Method)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): Caused by: java.lang.NullPointerException
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at com.spectrum.stock.JSONResponse.GET_TITLE(JSONResponse.java:61)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at com.spectrum.stock.CaptureActivity.onActivityResult(CaptureActivity.java:78)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at android.app.Activity.dispatchActivityResult(Activity.java:3931)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): at android.app.ActivityThread.deliverResults(ActivityThread.java:3730)
04-01 12:09:05.152: ERROR/AndroidRuntime(24968): ... 11 more
04-01 12:09:05.162: WARN/ActivityManager(96):    Force finishing activity com.spectrum.stock/.CaptureActivity

編集: 変更後の LogCat からのエラーログ。

04-01 15:00:33.912: ERROR/QualcommCameraHardware(67): native_access_parm: error (No such file or directory): fd 30, type 1, length 32, status 0
04-01 15:00:34.002: ERROR/QualcommCameraHardware(67): num_buffers = 4
04-01 15:00:34.002: ERROR/QualcommCameraHardware(67): num_buffers = 8
04-01 15:00:34.082: ERROR/mm-camera 8x vfe(67): vfe_util_updaterollofftbl: sensor doesn't support rolloff correction by VFE
04-01 15:00:35.022: ERROR/mm-camera-af(67): af_algo_preview: FAILED....
04-01 15:00:37.872: ERROR/mm-camera-af(67): af_algo_preview: FAILED....
04-01 15:00:38.052: ERROR/mm-camera 8x-vfe(67): Received VFE Stop ACK!!! ctrlCmd is NULL
04-01 15:00:38.482: ERROR/QualcommCameraHardware(67): native_access_parm: error (No such file or directory): fd 30, type 1, length 32, status 0
04-01 15:00:38.542: ERROR/QualcommCameraHardware(67): num_buffers = 4
04-01 15:00:38.542: ERROR/QualcommCameraHardware(67): num_buffers = 8
04-01 15:00:38.602: ERROR/mm-camera 8x vfe(67): vfe_util_updaterollofftbl: sensor doesn't support rolloff correction by VFE
04-01 15:00:39.182: ERROR/mm-camera-af(67): af_algo_preview: FAILED....
04-01 15:00:41.662: ERROR/mm-camera-af(67): af_algo_preview: FAILED....
04-01 15:00:44.742: ERROR/mm-camera-af(67): af_algo_preview: FAILED....
04-01 15:00:47.422: ERROR/ImapServer(351): catch exception
04-01 15:00:47.422: ERROR/ImapServer(351): java.lang.NumberFormatException: unable to parse 'BASE64' as integer
04-01 15:00:47.422: ERROR/ImapServer(351): at java.lang.Integer.parse(Integer.java:433)
04-01 15:00:47.422: ERROR/ImapServer(351): at java.lang.Integer.parseInt(Integer.java:422)
04-01 15:00:47.422: ERROR/ImapServer(351): at java.lang.Integer.parseInt(Integer.java:382)
04-01 15:00:47.422: ERROR/ImapServer(351): at java.lang.Integer.valueOf(Integer.java:682)
04-01 15:00:47.422: ERROR/ImapServer(351): at com.htc.android.mail.server.ImapServer.getTheDisplaySize(ImapServer.java:2810)
04-01 15:00:47.422: ERROR/ImapServer(351): at com.htc.android.mail.server.ImapServer.processFetchInfo(ImapServer.java:2694)
04-01 15:00:47.422: ERROR/ImapServer(351): at com.htc.android.mail.server.ImapServer.fetchInfo(ImapServer.java:2531)
04-01 15:00:47.422: ERROR/ImapServer(351): at com.htc.android.mail.server.ImapServer.refresh(ImapServer.java:1348)
04-01 15:00:47.422: ERROR/ImapServer(351): at com.htc.android.mail.RequestController$MainRequestQueueThread.run(RequestController.java:570)
04-01 15:00:47.622: ERROR/log_tag(26112): Error in http connection java.net.UnknownHostException: www.googleapis.com
04-01 15:00:47.632: ERROR/log_tag(26112): Error parsing data org.json.JSONException: End of input at character 0 of 
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): FATAL EXCEPTION: main
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=0, result=-1, data=Intent { act=com.google.zxing.client.android.SCAN flg=0x80000 (has extras) }} to activity {com.spectrum.stock/com.spectrum.stock.CaptureActivity}: java.lang.NullPointerException
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at android.app.ActivityThread.deliverResults(ActivityThread.java:3734)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3776)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at android.app.ActivityThread.access$2800(ActivityThread.java:135)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2166)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at android.os.Handler.dispatchMessage(Handler.java:99)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at android.os.Looper.loop(Looper.java:144)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at android.app.ActivityThread.main(ActivityThread.java:4937)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at java.lang.reflect.Method.invokeNative(Native Method)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at java.lang.reflect.Method.invoke(Method.java:521)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at dalvik.system.NativeStart.main(Native Method)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): Caused by: java.lang.NullPointerException
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at com.spectrum.stock.JSONResponse.GET_TITLE(JSONResponse.java:63)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at com.spectrum.stock.CaptureActivity.onActivityResult(CaptureActivity.java:78)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at android.app.Activity.dispatchActivityResult(Activity.java:3931)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112): at android.app.ActivityThread.deliverResults(ActivityThread.java:3730)
04-01 15:00:47.642: ERROR/AndroidRuntime(26112):     ... 11 more
04-01 15:00:48.272: ERROR/JavaBinder(96): !!! FAILED BINDER TRANSACTION !!!
04-01 15:00:48.282: ERROR/JavaBinder(96): !!! FAILED BINDER TRANSACTION !!!
04-01 15:00:48.282: ERROR/JavaBinder(96): !!! FAILED BINDER TRANSACTION !!!
04-01 15:00:48.282: ERROR/JavaBinder(96): !!! FAILED BINDER TRANSACTION !!!
04-01 15:00:48.282: ERROR/JavaBinder(96): !!! FAILED BINDER TRANSACTION !!!

score 0 · Accepted Answer

In the above the result value is "" since the "Inputstream is" is not being converted to String. to convert it to string use following method and try


    public static String convertStreamToString(InputStream is) {
            StringBuilder sb = new StringBuilder();
            try{
                BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
                String line = null;
                while ((line = reader.readLine()) != null) {
                    sb.append(line).append("\n");
                }
                is.close();
            } catch(OutOfMemoryError om){
                //Constants.TEXT_NETWORKERROR = Constants.MSG_ERROR_CONNECTION;
                om.printStackTrace();
            } catch(Exception ex){
                //Constants.TEXT_NETWORKERROR = Constants.MSG_ERROR_CONNECTION;
                ex.printStackTrace();
            }
            return sb.toString();
        }//convertStreamToString()


Minor changes in your code to handle NullpointerException

try {
        jArray = new JSONObject(result);  
JSONObject itemObject = jArray.getJSONObject("items");
    JSONObject productObject = itemObject.getJSONObject("product");

    String attributeGoogleId = productObject.getString("googleId");
    String attributeProviderId = productObject.getString("providerId");
    String attributeTitle = productObject.getString("title");*/
    String attributePrice = productObject.getString("price");
    JSONObject popupObject = productObject.getJSONObject("popup");

        return attributeTitle;          
    } catch(JSONException e){
        Log.e("log_tag", "Error parsing data "+e.toString());
return null;
    }


    }

score 0 · Accepted Answer

この質問への答えは別の場所で見つかりました。リクエストが正常に送信されたときに応答が null になるのを止めたいくつかのことを変更しただけで機能したので、それはほんの些細なことだったと思います。

android - 解析中に Android Google-Shopping API が強制終了する

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