Reputation: 3080
I have five domain server and i want to connect to that server using java socket programming in my android application.
Here my servers "ANY1.g%%%%%%%%.dk" "ANY2.g%%%%%%%%.dk" "ANY3.g%%%%%%%%.dk" "ANY4.g%%%%%%%%.dk" "ANY5.g%%%%%%%%.dk"
So when I ping to any of server via ping command in run prompt, it is working perfect and getting response.
but when i am trying to crate socket using this server it gives me "Unknown Host" error.
Here is my code:
try
{
hostname = "ANY SERVER DOMAIN NAME";
port = ANY;
socket = new Socket(hostname, port);
socket.setReceiveBufferSize(2048);
socket.setKeepAlive(true);
Log.e("SOCKET",socket.isConnected());
}
catch(Exception e)
{
Log.e("ERROR",e.getMessage());
}
Is there any problem with code or any suggestion will be accepted?
Menifest file :
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.siliconithub.android.greencall"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.SEND_SMS" />
<supports-screens
android:anyDensity="true"
android:largeScreens="true"
android:normalScreens="true"
android:resizeable="true"
android:smallScreens="true" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="@drawable/ic_app_icon"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".GreenCall"
android:label="@string/title_activity_green_call"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoTitleBar" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".RecentCallActivity"
android:label="@string/title_activity_recentcall"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoTitleBar" >
</activity>
<activity
android:name=".RecentCallDetailActivity"
android:label="@string/title_activity_recentcall_detail"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoTitleBar" >
</activity>
<activity
android:name=".FavouritesActivity"
android:label="@string/title_activity_fovourites"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoTitleBar" >
</activity>
<activity
android:name=".ContactsActivity"
android:label="@string/title_activity_contacts"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoTitleBar" >
</activity>
<activity
android:name=".ContactDetailsActivity"
android:label="@string/title_activity_contactdetails"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoTitleBar" >
</activity>
<activity
android:name=".TelnetServerActivity"
android:label="@string/title_activity_telnetserver"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoTitleBar" >
</activity>
<activity
android:name=".SettingActivity"
android:label="@string/title_activity_setting"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.Black" >
</activity>
<activity
android:name=".SearchContactsActivity"
android:label="@string/title_activity_search_contacts"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoTitleBar" >
</activity>
<service
android:name=".UpdateStatusService"
android:label="@string/title_service_update_status"
android:icon="@drawable/ic_app_icon"
android:enabled="true" />
<receiver android:name=".PhoneStateBroadcastReceiver" >
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
</receiver>
</application>
</manifest>
thank you.
Upvotes: 1
Views: 1744
Reputation: 9522
import java.net.Socket;
public class Main {
public static void main(String[] args) {
try {
Socket socket = new Socket("%%%%.%%%%%.dk", PORT NUMBER);
socket.setReceiveBufferSize(2048);
socket.setKeepAlive(true);
System.out.println("socket " + socket.isConnected());
} catch (Exception e) {
System.out.println("error " + e.getMessage());
}
}
}
This returns
socket true
In Java (no Android). It also works in Android (sherpya has tested it - see his comment below). I guess there is something wrong with your permissions. Can you show us your manifest?
Upvotes: 2
Reputation: 2779
The best way is to use an InetAddress
+ SocketAddress
to resolve the host, then connect to it using a socket.
Try:
InetAddress addr = InetAddress.getByName("ANY1.g%%%%%%%.dk");
SocketAddress sockaddr = new InetSocketAddress(addr, 443);
socket = new Socket();
socket.connect(sockaddr, timeoutint)
Upvotes: 1