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InetAddress on Android

How to print website IP address in android? I can run inetaddress and print it using system.out.println () in netbean. Below is my sample coding.

public String getHostAddress () {
        InetAddress addr=null;
        try {
            addr= InetAddress.getByName("www.google.com");
        }

        catch (UnknownHostException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            }
        return addr.getHostAddress();
    }

It always shows. Unfortunately, your program is stopped. May know if there is a way to get the IP address of the visited website in android?

05-19 14:22:39.008: I/dalvikvm(1062): threadid=3: reacting to signal 3
05-19 14:22:39.049: I/dalvikvm(1062): Wrote stack traces to '/data/anr/traces.txt'
05-19 14:22:39.688: I/dalvikvm(1062): threadid=3: reacting to signal 3
05-19 14:22:39.828: I/dalvikvm(1062): Wrote stack traces to '/data/anr/traces.txt'
05-19 14:22:39.929: D/AndroidRuntime(1062): Shutting down VM
05-19 14:22:39.948: W/dalvikvm(1062): threadid=1: thread exiting with uncaught exception (group=0x409c01f8)
05-19 14:22:40.039: E/AndroidRuntime(1062): FATAL EXCEPTION: main
05-19 14:22:40.039: E/AndroidRuntime(1062): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.destinationurl/com.android.destinationurl.DestinationURL}: android.os.NetworkOnMainThreadException
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.app.ActivityThread.access$600(ActivityThread.java:123)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.os.Handler.dispatchMessage(Handler.java:99)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.os.Looper.loop(Looper.java:137)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.app.ActivityThread.main(ActivityThread.java:4424)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at java.lang.reflect.Method.invokeNative(Native Method)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at java.lang.reflect.Method.invoke(Method.java:511)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at dalvik.system.NativeStart.main(Native Method)
05-19 14:22:40.039: E/AndroidRuntime(1062): Caused by: android.os.NetworkOnMainThreadException
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at java.net.InetAddress.lookupHostByName(InetAddress.java:391)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at java.net.InetAddress.getAllByNameImpl(InetAddress.java:242)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at java.net.InetAddress.getByName(InetAddress.java:295)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at com.android.destinationurl.DestinationURL.getHostAddress(DestinationURL.java:57)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at com.android.destinationurl.DestinationURL.onCreate(DestinationURL.java:40)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.app.Activity.performCreate(Activity.java:4465)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
05-19 14:22:40.039: E/AndroidRuntime(1062):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
05-19 14:22:40.039: E/AndroidRuntime(1062):     ... 11 more
05-19 14:22:40.248: I/dalvikvm(1062): threadid=3: reacting to signal 3
05-19 14:22:40.283: I/dalvikvm(1062): Wrote stack traces to '/data/anr/traces.txt'
05-19 14:22:40.608: I/dalvikvm(1062): threadid=3: reacting to signal 3
05-19 14:22:40.698: I/dalvikvm(1062): Wrote stack traces to '/data/anr/traces.txt'
05-19 14:22:42.078: I/Process(1062): Sending signal. PID: 1062 SIG: 9
+5
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4 answers

Simply,

Its a mistake in the url, just fix it.

"www.google.com" you have 4 w in your URL ...

And add Use-Permission <uses-permission android:name="android.permission.INTERNET">  in the manifest file of your Android application.

It is right.

addr = InetAddress.getByName("www.google.com");

EDIT: Use AsyncTaskfor networking

String netAddress = null;
 try
  {
   netAddress = new NetTask().execute("www.google.com").get();
  }
  catch (Exception e1)
   {
    e1.printStackTrace();
   }

And this NetTask class ..

public class NetTask extends AsyncTask<String, Integer, String>
    {
        @Override
        protected String doInBackground(String... params)
        {
            InetAddress addr = null;
            try
            {
                addr = InetAddress.getByName(params[0]);
            }

            catch (UnknownHostException e)
            {
                            e.printStackTrace();
            }
            return addr.getHostAddress();
        }
    }
+3

URL- wwww.google.com.

addr= InetAddress.getByName("www.google.com");

.

+2

Make sure you have all the necessary permissions. Perhaps your application will stop because it does not have the appropriate permissions. Check if you have permission to access the Internet in the XML manifest.

<uses-permission android:name="android.permission.INTERNET">
+1
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This is because you are making a network call in the main thread.

String address = "";
AsyncTask.execute(new Runnable() {
    @Override
    public void run() {
        address = InetAddress.getByName("www.google.com");
    }
});
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