android error με το internet connection

[xrist0f0r0s]

γεια σας,

προσπαθω να κατεβασω δημιουργισω url connection με ιστοσελιδες αλλα μου βγαζει error και μετα απο πολλυ ωρα δεν καταφερα να βρω ποιο ειναι το προβλημα  :S

το προβλημα το βρικα στο  "                 in = new BufferedInputStream(urlConnection.getInputStream()); "

 

main.java :

				   HttpURLConnection urlConnection = null;
				   InputStream in;
				 URL url;
				try {
					url = new URL("http://www.google.com/");
					 urlConnection = (HttpURLConnection) url.openConnection();
				} catch (MalformedURLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				   
				try {
					
					
				     in = new BufferedInputStream(urlConnection.getInputStream());
				     
				   } catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}finally {
				     urlConnection.disconnect();
				   }

manifest :

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

ευχαριστω

[acid18]

Αντί για e.printStackTrace(); βάλε  Log.v(e.getMessage()) και δες τι σου λέει.

[xrist0f0r0s]

το δοκιμασα με το Log.v αλλα δεν μου βγαζει κατι στο verbοse

οριστε το log.txt αρχειο

05-31 07:22:43.865: D/AndroidRuntime(1306): Shutting down VM
05-31 07:22:43.865: W/dalvikvm(1306): threadid=1: thread exiting with uncaught exception (group=0xb3aaeba8)
05-31 07:22:43.875: E/AndroidRuntime(1306): FATAL EXCEPTION: main
05-31 07:22:43.875: E/AndroidRuntime(1306): Process: com.example.daarrr, PID: 1306
05-31 07:22:43.875: E/AndroidRuntime(1306): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.daarrr/com.example.daarrr.MainActivity}: android.os.NetworkOnMainThreadException
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.app.ActivityThread.access$800(ActivityThread.java:135)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.os.Handler.dispatchMessage(Handler.java:102)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.os.Looper.loop(Looper.java:136)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.app.ActivityThread.main(ActivityThread.java:5017)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at java.lang.reflect.Method.invokeNative(Native Method)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at java.lang.reflect.Method.invoke(Method.java:515)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at dalvik.system.NativeStart.main(Native Method)
05-31 07:22:43.875: E/AndroidRuntime(1306): Caused by: android.os.NetworkOnMainThreadException
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at java.net.InetAddress.getAllByName(InetAddress.java:214)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.okhttp.internal.Dns$1.getAllByName(Dns.java:28)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:216)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:122)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:292)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.okhttp.internal.http.HttpEngine.sendSocketRequest(HttpEngine.java:255)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:206)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:345)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:296)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.android.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:179)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at com.example.daarrr.MainActivity.onCreate(MainActivity.java:44)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.app.Activity.performCreate(Activity.java:5231)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
05-31 07:22:43.875: E/AndroidRuntime(1306):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
05-31 07:22:43.875: E/AndroidRuntime(1306):     ... 11 more

ευχαριστω παντος :S

 

[acid18]

Βάλε general exception 

 

catch (Exception ex)

[xrist0f0r0s]

05-31 17:21:37.435: D/AndroidRuntime(1098): Shutting down VM
05-31 17:21:37.435: W/dalvikvm(1098): threadid=1: thread exiting with uncaught exception (group=0xb1a9eba8)
05-31 17:21:37.475: E/AndroidRuntime(1098): FATAL EXCEPTION: main
05-31 17:21:37.475: E/AndroidRuntime(1098): Process: com.example.daarrr, PID: 1098
05-31 17:21:37.475: E/AndroidRuntime(1098): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.daarrr/com.example.daarrr.MainActivity}: java.lang.NullPointerException
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at android.app.ActivityThread.access$800(ActivityThread.java:135)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at android.os.Handler.dispatchMessage(Handler.java:102)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at android.os.Looper.loop(Looper.java:136)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at android.app.ActivityThread.main(ActivityThread.java:5017)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at java.lang.reflect.Method.invokeNative(Native Method)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at java.lang.reflect.Method.invoke(Method.java:515)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at dalvik.system.NativeStart.main(Native Method)
05-31 17:21:37.475: E/AndroidRuntime(1098): Caused by: java.lang.NullPointerException
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at com.android.internal.os.LoggingPrintStream.println(LoggingPrintStream.java:298)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at com.example.daarrr.MainActivity.onCreate(MainActivity.java:46)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at android.app.Activity.performCreate(Activity.java:5231)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
05-31 17:21:37.475: E/AndroidRuntime(1098): 	... 11 more
05-31 17:21:40.675: I/Process(1098): Sending signal. PID: 1098 SIG: 9

ειναι το log δεν καταφερα οσο και να προσπαθησα δεν βρεικα τιποτα αλλο στα log

 

 

αυτος ειναι ο κωδικας μονο δεν υπαρχει αλλος

                BufferedInputStream in = null;
		
		URL url=null;
		HttpURLConnection urlConnection = null;
		try {
			url = new URL("http://www.android.com/");
			urlConnection = (HttpURLConnection) url.openConnection();
		
		} catch (Exception e) {
			// TODO Auto-generated catch block
			System.out.println(e.getMessage());
			Log.v(e.getMessage(),e.getMessage());
		}


		
		try {
                        //Εδω crashari 
			in = new BufferedInputStream(urlConnection.getInputStream());

			 
		} catch (Exception ex) {
			// TODO Auto-generated catch block
			System.out.println(ex.getMessage());
			System.err.println(ex.getMessage());

			Log.v(ex.getMessage(),ex.getMessage());
		} 
		

συγνωμη που δεν μπορεσα να βοιηθησω περισοτερο ευχαριστω

[ParhsG]

Πρέπει να βάλεις αλλο thread απο android 4 και πανω.

Αλλιως βαλε στο ξεκινημα 

 

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();

StrictMode.setThreadPolicy(policy);

[xrist0f0r0s]

ευχαριστω παρα πολλυ