Abrufen von Produktinformationen wie Name, Preis usw. mithilfe der Barcode-Nummer
Ich entwickle eine App, die verwendetbarcode
um die Produktinformationen von Artikeln nach dem Scannen der zu erhaltenbarcode
.
Ich möchte nicht, dass der Benutzer installiertZXing barcode
app separat so habe ich die eingebettetZXing
Code in mein Projekt. So konnte ich die erhaltenbarcode ID number
.
Ich möchte das bekommenProduktinformation mögenName, Hersteller, Preis etc mit der Barcode-Nummer mitgoogle search api zum Einkaufen.
Hier ist der Code, den ich verwendet habe
<code>public class JSONExampleActivity extends Activity { TextView httpStuff; DefaultHttpClient client; JSONObject json; final static String URL = "https://www.googleapis.com/shopping/search"; String upc = "/v1/public/products?country=US&q=691464717759&restrictBy=gtin=691464717759"; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); httpStuff = (TextView) findViewById(R.id.tvHttp); client = new DefaultHttpClient(); new Read().execute("items"); } public JSONObject products(String upc) throws ClientProtocolException, IOException, JSONException { StringBuilder url = new StringBuilder(URL); url.append(upc); HttpGet get = new HttpGet(url.toString()); HttpResponse r = client.execute(get); int status = r.getStatusLine().getStatusCode(); if (status == 200) { HttpEntity e = r.getEntity(); String data = EntityUtils.toString(e); JSONObject timeline = new JSONObject(data); return timeline; } else { Toast.makeText(JSONExampleActivity.this, "error", Toast.LENGTH_SHORT); return null; } } public class Read extends AsyncTask<String, Integer, String> { @Override protected String doInBackground(String... params) { // TODO Auto-generated method stub try { json = products(upc); return json.getString(params[0]); } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } @Override protected void onPostExecute(String result){ httpStuff.setText(result); } } </code>
Aber ich bekomme keinen Text in httpStuff.
Dies ist der Logcat:
<code>D/SntpClient(61): request time failed: java.net.SocketException: Address family not supported by protocol W/System.err(793): org.apache.http.conn.ConnectTimeoutException: Connect to /209.85.175.95:443 timed out W/System.err(793): at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:121) W/System.err(793): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:143) W/System.err(793): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) W/System.err(793): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) W/System.err(793): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:359) W/System.err(793): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) W/System.err(793): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) W/System.err(793): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) W/System.err(793): at com.android.example.jsonexample.JSONExampleActivity.products(JSONExampleActivity.java:53) W/System.err(793): at com.android.example.jsonexample.JSONExampleActivity$Read.doInBackground(JSONExampleActivity.java:77) W/System.err(793): at com.android.example.jsonexample.JSONExampleActivity$Read.doInBackground(JSONExampleActivity.java:1) W/System.err(793): at android.os.AsyncTask$2.call(AsyncTask.java:185) W/System.err(793): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306) W/System.err(793): at java.util.concurrent.FutureTask.run(FutureTask.java:138) W/System.err(793): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) W/System.err(793): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) W/System.err(793): at java.lang.Thread.run(Thread.java:1019) D/SntpClient(61): request time failed: java.net.SocketException: Address family not supported by protocol </code>
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