DidaWiki

package trasferimentoFile;
 
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
 
public class Client {
 
	public static final int MAXBUFFER = 512;
 
	/**
	 * @param args nomeHostPozzo 
	 */
	public static void main(String[] args) {
 
		String hostname = args[0]; 
		String filename = args[1];
		InetAddress hostIp = null;
		try {
			hostIp = InetAddress.getByName(hostname);
		} catch (UnknownHostException e) {
			System.out.println("Hostname "+hostname+" sconosciuto");
			return;
		} 
		Socket s = null;
		try {
			s = new Socket(hostIp,Server.PORTA);
		} catch (IOException e) {
			System.out.println("Connessione a "+hostname+" porta "+Server.PORTA+" non riuscita");
			e.getCause();
			return;
		}
		FileInputStream fis = null;
		try {
			fis = new FileInputStream(filename);
		} catch (FileNotFoundException e) {
			System.out.println("Errore nell'apertura del file "+filename);
			return;
		}
		OutputStream os = null;
		try {
			os = s.getOutputStream();
		} catch (IOException e) {
			System.out.println("Errore: getOutputStream");
			return;
		}
 
		try {
			os.write(new String(filename+"\n").getBytes());
		} catch (IOException e) {
			System.out.println("Errore nella scrittura del nome file su socket");
			return;
		}
		byte [] buffer = new byte[MAXBUFFER];
		int letti = 0;
		try {
			letti = fis.read(buffer, 0, MAXBUFFER);
		} catch (IOException e) {
			System.out.println("Errore nella lettura dal file "+filename);
			return;
		}
		while(letti > 0) {
			try {
				os.write(buffer,0,letti);
				letti = fis.read(buffer, 0, MAXBUFFER);
			} catch (IOException e) {
				System.out.println("Errore nella scrittura su socket");
				return;
			}
		}
		try {
			os.close();
			fis.close();
			s.close();
		} catch (IOException e) {
			System.out.println("Errore nella chiusura del socket");
			return;
		}
 
 
	}
 
}