This is a problem with DNS resolution on the Android SDK/emulator. Use the ip-adress instead of the hostname.
bj On Jan 27, 6:17 pm, Mathias <[email protected]> wrote: > Hi, > > I'm trying to read a file via http. (http://www-lehre.inf.uos.de/ > ~mmenning/balingen.ts). I wrote a Connector Class: > > package gip.android.ogl; > > import java.io.IOException; > import java.io.InputStream; > import java.net.URL; > > import android.util.Log; > > public class DataConnectorTS { > > private final String DEBUG_TAG = "DataConnectorTS"; > > public DataConnectorTS() {} > > public void requestTS(String address) { > try { > > URL url = new URL(address); > Log.d(DEBUG_TAG, "url: " + url); > Log.d(DEBUG_TAG,"host: "+url.getHost()); > readData(url.openStream()); > > } catch (IOException e) { > Log.e(DEBUG_TAG, "JML request IOError", e); > } > } > > private void readData(InputStream in){ > > } > > } > > But by trying to connect in the ActivityClass > DataConnectorTS dcts= new DataConnectorTS(); > dcts.requestTS("http://www-lehre.inf.uos.de/~mmenning/ > balingen.jml"); > > I will only get the following ExceptionTrace: > > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): JML request IOError > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): > java.net.UnknownHostException: Host is unresolved: www- > lehre.inf.uos.de:80 > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > java.net.Socket.connect(Socket.java:928) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init> > (HttpConnection.java:61) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionManager > $ConnectionPool.getHttpConnection(HttpConnectionManager.java:145) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionManager.getConnection > (HttpConnectionManager.java:67) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.getHTTPConnection > (HttpURLConnection.java:800) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.connect > (HttpURLConnection.java:786) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.getInputStream > (HttpURLConnection.java:1030) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > java.net.URL.openStream(URL.java:664) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > gip.android.ogl.DataConnectorTS.requestTS(DataConnectorTS.java:35) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > gip.android.ogl.FirstOGLApp.onCreate(FirstOGLApp.java:14) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > android.app.Instrumentation.callActivityOnCreate(Instrumentation.java: > 1122) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > android.app.ActivityThread.performLaunchActivity(ActivityThread.java: > 2103) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > android.app.ActivityThread.handleLaunchActivity(ActivityThread.java: > 2156) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > android.app.ActivityThread.access$1800(ActivityThread.java:112) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > android.app.ActivityThread$H.handleMessage(ActivityThread.java:1580) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > android.os.Handler.dispatchMessage(Handler.java:88) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > android.os.Looper.loop(Looper.java:123) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > android.app.ActivityThread.main(ActivityThread.java:3742) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > java.lang.reflect.Method.invokeNative(Native Method) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > java.lang.reflect.Method.invoke(Method.java:515) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run > (ZygoteInit.java:739) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > com.android.internal.os.ZygoteInit.main(ZygoteInit.java:497) > 01-27 17:00:18.605: ERROR/DataConnectorTS(182): at > dalvik.system.NativeStart.main(Native Method) > > I already added the uses-permission Internet Tag to the manifest.xml > (above the application tag). > > I can create the URL Instance but not call openStream(). > Any Idea what the problem could be? > > Thanks for any help > > Mathias --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
