Why URL.openStream() method produce IOException?

Question

hi all I am new in xml parsing when I am fetching xml from url and call url.openStream() method IO exception produce anyone help me..

SAXParserFactory spf =SAXParserFactory.newInstance();
        SAXParser sp = spf.newSAXParser();
        XMLReader xr = sp.getXMLReader();

        /** Send URL to parse XML Tags */
        URL sourceUrl = new URL("http://api.androidhive.info/music/music.xml");
        DataHandler mdaDataHandler = new DataHandler();
        xr.setContentHandler(mdaDataHandler);
         InputStream io = sourceUrl.openStream();//exception is here
        xr.parse(new InputSource(io));
        mmusic = mdaDataHandler.getParseData();

exception is this

04-15 15:07:06.310: W/System.err(590): java.net.SocketException: Permission denied
04-15 15:07:06.440: W/System.err(590):  at      
org.apache.harmony.luni.platform.OSNetworkSystem.createStreamSocketImpl(Native Method)
04-15 15:07:06.440: W/System.err(590):  at org.apache.harmony.luni.platform.OSNetworkSystem.createStreamSocket(OSNetworkSystem.java:186)
04-15 15:07:06.450: W/System.err(590):  at org.apache.harmony.luni.net.PlainSocketImpl.create(PlainSocketImpl.java:265)
04-15 15:07:06.460: W/System.err(590):  at java.net.Socket.checkClosedAndCreate(Socket.java:873)
04-15 15:07:06.460: W/System.err(590):  at java.net.Socket.connect(Socket.java:1020)
04-15 15:07:06.470: W/System.err(590):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java:62)
04-15 15:07:06.470: W/System.err(590):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionPool.get(HttpConnectionPool.java:88)
04-15 15:07:06.480: W/System.err(590):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getHTTPConnection(HttpURLConnectionImpl.java:927)
04-15 15:07:06.490: W/System.err(590):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:909)
04-15 15:07:06.490: W/System.err(590):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:1152)
04-15 15:07:06.500: W/System.err(590):  at java.net.URL.openStream(URL.java:653)
04-15 15:07:06.500: W/System.err(590):  at com.listview.experiment.CustomListViewActivity.parseXML(CustomListViewActivity.java:56)
04-15 15:07:06.510: W/System.err(590):  at com.listview.experiment.CustomListViewActivity.access$0(CustomListViewActivity.java:43)
04-15 15:07:06.520: W/System.err(590):  at com.listview.experiment.CustomListViewActivity$1.onClick(CustomListViewActivity.java:34)
04-15 15:07:06.520: W/System.err(590):  at android.view.View.performClick(View.java:2408)
04-15 15:07:06.520: W/System.err(590):  at android.view.View$PerformClick.run(View.java:8816)
04-15 15:07:06.530: W/System.err(590):  at android.os.Handler.handleCallback(Handler.java:587)
04-15 15:07:06.540: W/System.err(590):  at android.os.Handler.dispatchMessage(Handler.java:92)
04-15 15:07:06.550: W/System.err(590):  at android.os.Looper.loop(Looper.java:123)
04-15 15:07:06.550: W/System.err(590):  at android.app.ActivityThread.main(ActivityThread.java:4627)
04-15 15:07:06.550: W/System.err(590):  at java.lang.reflect.Method.invokeNative(Native Method)
04-15 15:07:06.560: W/System.err(590):  at java.lang.reflect.Method.invoke(Method.java:521)
04-15 15:07:06.570: W/System.err(590):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-15 15:07:06.570: W/System.err(590):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-15 15:07:06.570: W/System.err(590):  at dalvik.system.NativeStart.main(Native Method)

manifest is

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.sam.testParsing"
  android:versionCode="1"
  android:versionName="1.0" >
  <uses-permission android:name="android.permission.INTERNET"/>
  <uses-sdk android:minSdkVersion="8" />
   <application
     android:icon="@drawable/ic_launcher"
       android:label="@string/app_name" >
       <activity
          android:label="@string/app_name"
           android:name=".XMLParsingActivity" >
              <intent-filter >
                   <action android:name="android.intent.action.MAIN" />

                    <category android:name="android.intent.category.LAUNCHER" />
                  </intent-filter>
                   </activity>
               </application>
           </manifest>

do you have android.permission.INTERNET in your permissions in android manifest — Habib
– Habib, Commented Apr 15, 2012 at 15:10
04-15 15:07:06.310: W/System.err(590): java.net.SocketException: Permission denied — sandee
– sandee, Commented Apr 15, 2012 at 15:13
if you are behind a proxy, then see if you can browse in the emulator, using the default browser, try to open you url from there — Habib
– Habib, Commented Apr 15, 2012 at 15:21

DavidR · Accepted Answer · 2013-04-25 05:19:36Z

3

You can't call Url.openStream() on the UI thread. Use AsyncTask to perform this operation and correctly update the UI when finished. `

answered Apr 25, 2013 at 5:19

DavidR

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Comments

Ted Hopp · Accepted Answer · 2012-04-15 15:15:13Z

1

You need to add this to your manifest file:

<uses-permission android:name="android.permission.INTERNET">

Make sure that it is just below the <manifest> tag.

edited Apr 15, 2012 at 15:15

answered Apr 15, 2012 at 15:09

Ted Hopp

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5 Comments

sandee Over a year ago

I have allready put this permission I am using emulator for testing is any issue may be by emulator.

sandee Over a year ago

please help me why this exception come?

Ted Hopp Over a year ago

@sandee - That error almost always comes because the manifest is missing the <uses-permission> tag or the tag is in the wrong place in the manifest file. Can you post your manifest file in your original question? If the emulator configuration was the problem, I think there would be a different exception message.

Ted Hopp Over a year ago

@sandee - One other problem might be the firewall setting on your computer. Try accessing the url from the emulator's browser.

sandee Over a year ago

this url is open properly in emulator means when I am putting that url manually on emulaator browser proper data is showing..

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