客户端:
import java.awt.*;
import java.io.*;
import java.awt.event.*;import java.net.*;public class ChatClient {
public static void main(String[] args) {
new MyChatFrame("MyChatTest");
}
}class MyChatFrame extends Frame {
TextField Text1 = new TextField("我是输入框");
TextArea Area1 = new TextArea("");
Button But1 = new Button("发送");
Socket soc = null;
DataOutputStream os = null;
DataInputStream is = null;
boolean bconnect = false;
Thread tRecv = new Thread(new Receve()); MyChatFrame(String s) {
int width, height;
width = Toolkit.getDefaultToolkit().getScreenSize().width;
height = Toolkit.getDefaultToolkit().getScreenSize().height;
setSize(500, 500);
this.setLocation((width - 500) / 2, (height - 500) / 2);
setBackground(Color.white);
setResizable(false);
add(Text1, BorderLayout.SOUTH);
add(Area1, BorderLayout.NORTH);
add(But1, BorderLayout.EAST);
Text1.addActionListener(new TextFieldListener());
// But1.addActionListener(new ButtonListener());
pack();
setVisible(true);
this.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
disconnect();
System.exit(0);
} });
connect();
tRecv.start();
} private class TextFieldListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
String s = Text1.getText();
//Area1.setText(s);
Text1.setText("");
try {
os.writeUTF(s);
os.flush();
// os.close(); } catch (IOException e1) {
e1.printStackTrace();
}
} } /*
* private class ButtonListener implements ActionListener { public void
* actionPerformed(ActionEvent e) { String s = Text1.getText();
* Area1.setText(s); Text1.setText(""); try {
*
* DataOutputStream os = new DataOutputStream( soc.getOutputStream());
* os.writeUTF(s); os.flush(); os.close();
*
* } catch (IOException e1) { e1.printStackTrace(); } }
*
* }
*/ public void connect() {
try {
soc = new Socket("127.0.0.1", 8888);
os = new DataOutputStream(soc.getOutputStream());
is = new DataInputStream(soc.getInputStream());
System.out.println("Client OK");
bconnect = true;
} catch (IOException e) {
e.printStackTrace();
}
} private class Receve implements Runnable { public void run() {
try {
while (bconnect) {
String str = is.readUTF();
// System.out.println(str);
Area1.setText(Area1.getText()+str + '\n');
} } catch (SocketException e) {
System.out.println("退出了,bye!");
} catch (IOException e) {
e.printStackTrace();
} } } public void disconnect() {
try {
os.close();
soc.close();
is.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} }}
服务器端:import java.net.*;
import java.util.*;
import java.io.*;public class ChatServer { DataInputStream is = null;
ServerSocket ss = null;
List<Client> Clients = new ArrayList<Client>();
DataOutputStream os = null; public static void main(String[] args) {
new ChatServer().start(); } public void start() { boolean started = false; try {
ss = new ServerSocket(8888);
started = true;
int i = 0;
while (started) {
Socket s = ss.accept();
Client c = new Client(s);
Clients.add(c);
new Thread(c).start();
System.out.println("第" + ++i + "个Client connected!"); }
} catch (BindException e) {
System.out.println("Server is busy!");
System.out.println("请关掉程序重新启动服务器!");
System.exit(0);
} catch (IOException e) {
e.printStackTrace();
} } class Client implements Runnable {
private boolean connect = false;
private Socket s; Client(Socket s) {
this.s = s;
connect = true;
try {
is = new DataInputStream(s.getInputStream());
os = new DataOutputStream(s.getOutputStream());
} catch (IOException e) {
e.printStackTrace();
}
} public void send(String str) {
try {
os.writeUTF(str);
} catch (IOException e) {
e.printStackTrace();
}
} public void run() {
int i = 0;
try {
while (connect) {
String str = is.readUTF();
System.out.println(str);
for (int j = 0; j < Clients.size(); j++) {
Client c = Clients.get(j);
c.send(str);
//System.out.println("Nomale!");
}
}
} catch (Exception e) {
// e.printStackTrace();
System.out.println("有" + ++i + "个Client is closed!");
} finally {
try {
if (ss != null)
ss.close();
if (is != null)
is.close();
if (os != null)
os.close();
} catch (EOFException e) {
System.out.println("第" + ++i + "个Client is closed!");
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} } } }
}
本人超级菜鸟,难免有些低级错误求大家帮忙解答下。同事开启2个客户端的话,无法正常对话,而且运行一段时间就不能正常聊天了! = =!
服务器端
import java.io.*;
import java.net.*;
import java.util.*;public class ChatServer {
boolean started = false;
ServerSocket ss = null;
List<Client> clients = new ArrayList<Client>();
public static void main(String[] args) {
new ChatServer().start();
}
public void start() {
try {
ss = new ServerSocket(8888);
started = true;
} catch (BindException e) {
System.out.println("端口使用中....");
System.out.println("请关掉相关程序并重新运行服务器!");
System.exit(0);
} catch (IOException e) {
e.printStackTrace();
}
try {
while(started) {
Socket s = ss.accept();
Client c = new Client(s);
System.out.println("a client connected!");
new Thread(c).start();
clients.add(c);
//dis.close();
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
ss.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
class Client implements Runnable {
private Socket s;
private DataInputStream dis = null;
private DataOutputStream dos = null;
private boolean bConnected = false;
public Client(Socket s) {
this.s = s;
try {
dis = new DataInputStream(s.getInputStream());
dos = new DataOutputStream(s.getOutputStream());
bConnected = true;
} catch (IOException e) {
e.printStackTrace();
}
}
public void send(String str) {
try {
dos.writeUTF(str);
} catch (IOException e) {
clients.remove(this);
System.out.println("对方退出了!我从List里面去掉了!");
//e.printStackTrace();
}
}
public void run() {
try {
while(bConnected) {
String str = dis.readUTF();
System.out.println(str);
for(int i=0; i<clients.size(); i++) {
Client c = clients.get(i);
c.send(str);
//System.out.println(" a string send !");
}
/*
for(Iterator<Client> it = clients.iterator(); it.hasNext(); ) {
Client c = it.next();
c.send(str);
}
*/
/*
Iterator<Client> it = clients.iterator();
while(it.hasNext()) {
Client c = it.next();
c.send(str);
}
*/
}
} catch (EOFException e) {
System.out.println("Client closed!");
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if(dis != null) dis.close();
if(dos != null) dos.close();
if(s != null) {
s.close();
//s = null;
}
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
}
客户端import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;public class ChatClient extends Frame {
Socket s = null;
DataOutputStream dos = null;
DataInputStream dis = null;
private boolean bConnected = false; TextField tfTxt = new TextField(); TextArea taContent = new TextArea();
Thread tRecv = new Thread(new RecvThread()); public static void main(String[] args) {
new ChatClient().launchFrame();
} public void launchFrame() {
setLocation(400, 300);
this.setSize(300, 300);
add(tfTxt, BorderLayout.SOUTH);
add(taContent, BorderLayout.NORTH);
pack();
this.addWindowListener(new WindowAdapter() { @Override
public void windowClosing(WindowEvent arg0) {
disconnect();
System.exit(0);
}
});
tfTxt.addActionListener(new TFListener());
setVisible(true);
connect();
tRecv.start();
}
public void connect() {
try {
s = new Socket("127.0.0.1", 8888);
dos = new DataOutputStream(s.getOutputStream());
dis = new DataInputStream(s.getInputStream());
System.out.println("connected!");
bConnected = true;
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public void disconnect() {
try {
dos.close();
dis.close();
s.close();
} catch (IOException e) {
e.printStackTrace();
}
/*
try {
bConnected = false;
tRecv.join();
} catch(InterruptedException e) {
e.printStackTrace();
} finally {
try {
dos.close();
dis.close();
s.close();
} catch (IOException e) {
e.printStackTrace();
}
}
*/
}
private class TFListener implements ActionListener { public void actionPerformed(ActionEvent e) {
String str = tfTxt.getText().trim();
//taContent.setText(str);
tfTxt.setText("");
try {
//System.out.println(s);
dos.writeUTF(str);
dos.flush();
//dos.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
private class RecvThread implements Runnable { public void run() {
try {
while(bConnected) {
String str = dis.readUTF();
//System.out.println(str);
taContent.setText(taContent.getText() + str + '\n');
}
} catch (SocketException e) {
System.out.println("退出了,bye!");
} catch (EOFException e) {
System.out.println("推出了,bye - bye!");
} catch (IOException e) {
e.printStackTrace();
}
}
}
}