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Регистрация: 31.10.2015
Сообщений: 9
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Online Chat with GUI
31.10.2015, 18:10. Показов 1447. Ответов 1
Всем привет. Недавно на работе я начал изучать Java. Проблема в том, что мне дали задание сделать чат. Я подготовил основу для него, но последнее задание я сделать никак не могу. Прошу о помощи. Последнее задание заключается в том, чтобы Создать на основе сокетов клиент/серверное визуальное приложение: Клиент посылает через сервер сообщение другому клиенту.
Вот сама основа:
InetLogic.java
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| package chapt15;
import java.net.*;
import org.omg.CORBA.portable.UnknownException;
public class InetLogic {
public static void main(String[] args) throws UnknownHostException{
InetAddress myIP = null;
InetAddress upceIP = null;
try{
myIP = InetAddress.getLocalHost();
System.out.println("My IP is : " + myIP.getHostAddress());
upceIP = InetAddress.getByName ("www.upce.cz");
System.out.println("UPCE : " + upceIP.getHostAddress());
} catch (UnknownException e){
e.printStackTrace();
}
}
} |
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MyClientSocket.java
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| package chapt15;
import java.io.*;
import java.net.*;
public class MyClientSocket {
public static void main(String[] args) {
Socket socket = null;
try {
socket = new Socket("Server Name", 8030);
BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String msg = br.readLine();
System.out.println(msg);
socket.close();
} catch (IOException e) {
System.err.println("error: " + e);
}
}
} |
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MyServerSocket.java
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| package chapt15;
import java.io.*;
import java.net.*;
public class MyServerSocket {
public static void main(String[] args) throws IOException {
Socket s = null;
try {
ServerSocket server = new ServerSocket(8030);
s = server.accept();
PrintStream ps = new PrintStream(s.getOutputStream());
ps.println("Hello!");
ps.flush();
ps.close();
} catch (IOException e) {
System.err.println("Error: " + e);
} finally {
if (s != null)
s.close();
}
}
} |
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MyShowDocuments.java
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| package chapt15;
import java.awt.Graphics;
import java.net.MalformedURLException;
import java.net.URL;
import javax.swing.JApplet;
public class MyShowDocument extends JApplet {
private URL upce = null;
public String getMyURL() {
return "http://www.upce.cz";
}
@Override
public void paint(Graphics g) {
int timer = 0;
g.drawString("Loading page", 10, 10);
try {
for (; timer < 30; timer++) {
g.drawString(".", 10 + timer * 5, 25);
Thread.sleep(100);
}
upce = new URL(getMyURL());
getAppletContext().showDocument(upce, "_blank");
} catch (InterruptedException e) {
e.printStackTrace();
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
} |
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NetClientThread.java
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| package chapt15;
import java.io.*;
import java.net.*;
public class NetClientThread {
public static void main(String[] args) {
try {
Socket s = new Socket(InetAddress.getLocalHost(), 8071);
PrintStream ps = new PrintStream(s.getOutputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
for (int i=1; i<=10; i++) {
ps.println("PING");
System.out.println(br.readLine());
Thread.sleep(1000);
}
s.close();
} catch (UnknownHostException e) {
System.out.println("Address is unavailable");
e.printStackTrace();
} catch (IOException e) {
System.out.println("Error I/O stackflow");
e.printStackTrace();
} catch (InterruptedException e) {
System.out.println("Error of flow completion");
e.printStackTrace();
}
}
} |
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NetServerThread.java
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| package chapt15;
import java.io.*;
import java.net.*;
public class NetServerThread {
public static void main(String[] args) {
try {
ServerSocket serv = new ServerSocket(8071);
System.out.println("Initialized");
while (true) {
Socket sock = serv.accept();
System.out.println(sock.getInetAddress().getHostName()+" connected");
ServerThread server = new ServerThread(sock);
server.start();
}
} catch (IOException e) {
System.err.println(e);
}
}
}
class ServerThread extends Thread {
private PrintStream os;
private BufferedReader is;
private InetAddress addr;
public ServerThread(Socket s) throws IOException {
os = new PrintStream(s.getOutputStream());
is = new BufferedReader(new InputStreamReader(s.getInputStream()));
addr = s.getInetAddress();
}
@Override
public void run() {
int i = 0;
String str;
try {
while ((str = is.readLine()) != null) {
if ("PING".equals(str))
os.println("PONG "+ ++i);
System.out.println("PING-PONG" + i + " with " + addr.getHostName());
}
} catch (IOException e) {
System.out.println("Disconnect");
} finally {
disconnect();
}
}
public void disconnect() {
try {
System.out.println(addr.getHostName() + " disconnected");
os.close();
is.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
this.interrupt();
}
}
} |
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ReadDocument.java
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| package chapt15;
import java.net.*;
import java.io.*;
public class ReadDocument {
public static void main(String[] args) {
try {
URL lab = new URL("http://www.upce.cz");
InputStreamReader isr = new InputStreamReader(lab.openStream());
BufferedReader d = new BufferedReader(isr);
String line = " ";
while ((line = d.readLine()) !=null) {
System.out.println(line);
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
} |
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Recipient.java
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| package chapt15;
import java.io.*;
import java.net.*;
public class Recipient {
public static void main(String[] args) {
File file = new File("toxic2.mp3");
System.out.println("Data transfering...");
try {
acceptFile(file,8033,1000);
} catch (IOException e) {
e.printStackTrace();
}
}
private static void acceptFile(File file, int port, int pacSize) throws IOException {
byte data[] = new byte[pacSize];
DatagramPacket pac = new DatagramPacket(data, data.length);
DatagramSocket s = new DatagramSocket(port);
FileOutputStream os = new FileOutputStream(file);
try {
s.setSoTimeout(60000);
while (true) {
s.receive(pac);
os.write(data);
os.flush();
}
} catch (SocketTimeoutException e) {
os.close();
System.out.println("Time is out, Data transfering is finished");
}
}
} |
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Sender.java
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| package chapt15;
import java.io.*;
import java.net.*;
public class Sender {
public static void main(String[] args) {
try {
byte[] data = new byte[1000];
DatagramSocket s = new DatagramSocket();
InetAddress addr = InetAddress.getLocalHost();
FileInputStream fr = new FileInputStream(new File("toxic.mp3"));
DatagramPacket pac;
while (fr.read(data) != -1) {
pac = new DatagramPacket(data, data.length, addr, 8033);
s.send(pac);
}
fr.close();
System.out.println("File sent");
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (SocketException e) {
e.printStackTrace();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
} |
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UnCheckedHost.java
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| package chapt15;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
public class UnCheckedHost {
public static void main(String[] args){
byte ip[] = {(byte)217, (byte)21, (byte)43, (byte)10};
try {
InetAddress addr = InetAddress.getByAddress("University", ip);
System.out.println(addr.getHostName() + ": connection: " + addr.isReachable(1000));
} catch (UnknownHostException e) {
System.out.println("Address is unavailable");
e.printStackTrace();
} catch (IOException e) {
System.out.println("Stackflow error");
e.printStackTrace();
}
}
} |
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Заранее Огромное Спасибо!!!
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