android设置域名

import android.os.Bundle;
import android.util.Log;
import androidx.appcompat.app.AppCompatActivity;
import java.net.HttpURLConnection;
import java.net.URL;

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        String domain = "https://example.com";
        try {
            URL url = new URL(domain);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");
            int responseCode = connection.getResponseCode();
            Log.d("MainActivity", "Response Code: " + responseCode);
        } catch (Exception e) {
            Log.e("MainActivity", "Error: " + e.getMessage());
        }
    }
}