如姓名获取产品信息，价格等用吧code号 [英] Getting Product information like name, price etc using barcode number
问题描述
我开发一个应用程序，它使用吧code扫描吧code后得到物品的产品信息。
I am developing an app which uses barcode to get the product information of items after scanning the barcode.
我不希望用户安装ZXing吧code应用程序分开，所以我嵌入式的ZXing code到我的项目。所以，我能够得到吧code ID号。
I don't want the user to install ZXing barcode app separately so I embedded the ZXing code into my project. So I was able to obtain the barcode ID number.
我想用用谷歌搜索API购物吧code号得到这样的名称，生产厂家，价格等方面的产品信息。
I want to get the product information like name, manufacturer, price etc using the bar code number using google search api for shopping.
下面是code我已经用
Here is the code I have used
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); }
}
}
但我没有得到在httpStuff任何文本。
But I am not getting any text in httpStuff.
这是logcat的：
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
请帮我看看为什么我收到错误的原因。
Please help me find the reason why I am getting error.
推荐答案
试着增加你的API ID到URL。的https://developers.google.com/shopping-search/v1/getting_started#getting-started
Try adding on your API id to the url. https://developers.google.com/shopping-search/v1/getting_started#getting-started
我试了一下，并能得到Michael Kors的MK5412计时腕表根据您的code中的URL的信息。
I tried it and was able to get the information of Michael Kors MK5412 Chronograph Watches based of the url of your code.
<一个href="https://www.googleapis.com/shopping/search/v1/public/products?country=US&q=691464717759&restrictBy=gtin=691464717759&key=" rel="nofollow">https://www.googleapis.com/shopping/search/v1/public/products?country=US&q=691464717759&restrictBy=gtin=691464717759&key={your这里的关键}
https://www.googleapis.com/shopping/search/v1/public/products?country=US&q=691464717759&restrictBy=gtin=691464717759&key={your key here}
因此，你必须解决您的网址构建器来匹配^。
As a result, you have to fix your url builder to match ^.
另外，还要确保你把
<uses-permission android:name="android.permission.INTERNET"/>
在你的清单。感谢这家伙：的http://androidforums.com/developer-101/100793-java-net-unknownhostexception.html.
in your manifest. Credit to this guy: http://androidforums.com/developer-101/100793-java-net-unknownhostexception.html.
编码快乐：）
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