Java NIO实现简单聊天室（GUI版）
Java NIO实现简单聊天室（GUI版）
登录界面:
package com.chatroom;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import com.chat.client.ChatFrame;
import com.chat.client.ClientService;
/*
* 登录聊天室
*/
public class LoginFrame extends JFrame{
static final long serialVersionUID = 1L;
static JTextField txtName;
static JButton btnOK;
static JLabel label;
public LoginFrame() {
this.setLayout(null);
Toolkit kit = Toolkit.getDefaultToolkit();
int w = kit.getScreenSize().width;
int h = kit.getScreenSize().height;
this.setBounds(w / 2 - 230 / 2, h / 2 - 200 / 2, 230, 200);
this.setTitle("设置名称");
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setResizable(false);
txtName = new JTextField(4);
this.add(txtName);
txtName.setBounds(10, 10, 100, 25);
btnOK = new JButton("OK");
this.add(btnOK);
btnOK.setBounds(120, 10, 80, 25);
label = new JLabel("[w:" + w + ",h:" + h + "]");
this.add(label);
label.setBounds(10, 40, 200, 100);
label.setText("在上面的文本框中输入名字
显示器宽度：" + w + "
显示器高度：" + h
+ "");
btnOK.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String uname = txtName.getText();
ClientService service = ClientService.getInstance();
ChatFrame chatFrame = new ChatFrame(service, uname);
chatFrame.show();
setVisible(false);
}
});
}
public static void main(String[] args) {
LoginFrame loginFrame = new LoginFrame();
loginFrame.setVisible(true);
}
}服务端：
package com.chatroom;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.Vector;
public class ChatServer implements Runnable{
Selector selector;
SelectionKey selectionKey;
boolean isRunning;
Vector usernames;//用来存放用户的名字
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
public ChatServer(int port) throws IOException {
isRunning = true;
usernames = new Vector<>();
init(port);
}
private void printInfo(String str) {
System.out.println("[" + sdf.format(new Date()) + "] -> " + str);
}
/*
* 初始化，启动服务器
*/
public void init(int port) throws IOException {
selector=Selector.open();
ServerSocketChannel server = ServerSocketChannel.open();
server.socket().bind(new InetSocketAddress(port));
server.configureBlocking(false);
selectionKey = server.register(selector, SelectionKey.OP_ACCEPT);
printInfo("启动服务器");
}
@Override
public void run() {
try {
while (isRunning) {
int n=selector.select();
if (n>0) {
Iterator iterator = selector.selectedKeys().iterator();
while (iterator.hasNext()) {
SelectionKey key = iterator.next();
/*
* 如有客户端进来则进行连接
*/
if (key.isAcceptable()) {
ServerSocketChannel serverSocketChannel = (ServerSocketChannel) key.channel();
SocketChannel socketChannel = serverSocketChannel.accept();
if (socketChannel==null) {
continue;
}
socketChannel.configureBlocking(false);
socketChannel.register(selector, SelectionKey.OP_READ);
}
if (key.isReadable()) {
readMsg(key);
}
if (key.isWritable()) {
writeMsg(key);
}
}
}
}
} catch (Exception e) {
// TODO: handle exception
}
}
/*
* 读取信息
*/
public void readMsg(SelectionKey key) throws IOException {
SocketChannel socketChannel = (SocketChannel) key.channel();
ByteBuffer buffer = ByteBuffer.allocate(1024);
StringBuffer sBuffer = new StringBuffer();
int count = socketChannel.read(buffer);//读取从客户端传过来的信息大小
/*
* 如果有信息则加到StringBuffer中
*/
if (count>0) {
buffer.flip();
sBuffer.append(new String(buffer.array(), 0, count));
}
/*将信息转换成字符串*/
String string = sBuffer.toString();
/*
* 处理用户上线的情况
*/
if (string.indexOf("open_") != -1) {
String name = string.substring(5);
printInfo(name+"上线");
usernames.add(name);
Iterator sIterator = selector.selectedKeys().iterator();
while (sIterator.hasNext()) {
SelectionKey keyss = sIterator.next();
if (keyss!=selectionKey) {
keyss.attach(usernames);
keyss.interestOps(keyss.interestOps() | SelectionKey.OP_WRITE);
}
}
/*
* 处理用户下线的情况
*/
} else if (string.indexOf("exit_") != -1) {
String username = string.substring(5);
usernames.remove(username);
key.attach("close");
key.interestOps(SelectionKey.OP_WRITE);
Iterator iterator = selector.selectedKeys().iterator();
while (iterator.hasNext()) {
SelectionKey sKey = iterator.next();
if (sKey != selectionKey && sKey != key) {
sKey.attach(usernames);
sKey.interestOps(sKey.interestOps() | SelectionKey.OP_WRITE);
}
}
printInfo(username+"下线");
/*
* 在控制台输出客户端的对话
*/
}else {
String username = string.substring(0, string.indexOf("^"));
String msg = string.substring(string.indexOf("^") + 1);
printInfo("("+username+")说：" + msg);
String dateTime = sdf.format(new Date());
String smsg = username + " " + dateTime + "\n " + msg + "\n";
Iterator iter = selector.selectedKeys().iterator();
while (iter.hasNext()) {
SelectionKey selKey = iter.next();
if (selKey != selectionKey) {
selKey.attach(smsg);
selKey.interestOps(selKey.interestOps() | SelectionKey.OP_WRITE);
}
}
}
}
/*
* 传递信息到客户端
*/
public void writeMsg(SelectionKey key) throws IOException {
SocketChannel socketChannel = (SocketChannel) key.channel();
Object object = key.attachment();
key.attach("");
if (object.toString().equals("close")) {
key.cancel();
socketChannel.socket().close();
socketChannel.close();
return ;
}else {
socketChannel.write(ByteBuffer.wrap(object.toString().getBytes()));
}
key.interestOps(SelectionKey.OP_READ);
}
public static void main(String[] args) throws IOException {
ChatServer chatServer = new ChatServer(4400);
new Thread(chatServer).start();
}
} 客户端：
package com.chatroom;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
import com.chat.client.ClientService;
public class ChatClient {
static final String HOST = "127.0.0.1";
static final int PORT = 4477;
static SocketChannel sc;
static Object lock = new Object();
static ChatClient chatClient;
public static ChatClient getInstance() throws IOException {
synchronized (lock) {
if (chatClient==null) {
chatClient = new ChatClient();
}
}
return chatClient;
}
public ChatClient() throws IOException {
sc=SocketChannel.open();
sc.configureBlocking(false);
sc.connect(new InetSocketAddress(HOST, PORT));
}
public void sendMsg(String string) throws IOException {
sc.write(ByteBuffer.wrap(string.getBytes()));
}
public String receiveMsg() throws InterruptedException, IOException {
ByteBuffer buffer = ByteBuffer.allocate(1024);
buffer.clear();
StringBuffer stringBuffer = new StringBuffer();
int count =0;
String msg = null;
Thread.sleep(100);
while ((count=sc.read(buffer))>0) {
stringBuffer.append(new String(buffer.array(), 0, count));
}
if (stringBuffer.length() > 0) {
msg = stringBuffer.toString();
if ("close".equals(stringBuffer.toString())) {
msg = null;
sc.close();
sc.socket().close();
}
}
return msg;
}
}聊天室主体：
package com.chatroom;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import com.chat.client.ClientService;
public class ChatFrame {
private JTextArea readContext = new JTextArea(18, 30);// 显示消息文本框
private JTextArea writeContext = new JTextArea(6, 30);// 发送消息文本框
private DefaultListModel modle = new DefaultListModel();// 用户列表模型
private JList list = new JList(modle);// 用户列表
private JButton btnSend = new JButton("发送");// 发送消息按钮
private JButton btnClose = new JButton("关闭");// 关闭聊天窗口按钮
private JFrame frame = new JFrame("ChatFrame");// 窗体界面
private String uname;// 用户姓名
private ClientService service;// 用于与服务器交互
private boolean isRun = false;// 是否运行
public ChatFrame(ClientService service, String uname) {
this.isRun = true;
this.uname = uname;
this.service = service;
}
// 初始化界面控件及事件
private void init() {
frame.setLayout(null);
frame.setTitle(uname + " 聊天窗口");
frame.setSize(500, 500);
frame.setLocation(400, 200);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
JScrollPane readScroll = new JScrollPane(readContext);
readScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
frame.add(readScroll);
JScrollPane writeScroll = new JScrollPane(writeContext);
writeScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
frame.add(writeScroll);
frame.add(list);
frame.add(btnSend);
frame.add(btnClose);
readScroll.setBounds(10, 10, 320, 300);
readContext.setBounds(0, 0, 320, 300);
readContext.setEditable(false);
readContext.setLineWrap(true);// 自动换行
writeScroll.setBounds(10, 315, 320, 100);
writeContext.setBounds(0, 0, 320, 100);
writeContext.setLineWrap(true);// 自动换行
list.setBounds(340, 10, 140, 445);
btnSend.setBounds(150, 420, 80, 30);
btnClose.setBounds(250, 420, 80, 30);
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
isRun = false;
service.sendMsg("exit_" + uname);
System.exit(0);
}
});
btnSend.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String msg = writeContext.getText().trim();
if(msg.length() > 0){
service.sendMsg(uname + "^" + writeContext.getText());
}
writeContext.setText(null);
writeContext.requestFocus();
}
});
btnClose.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
isRun = false;
service.sendMsg("exit_" + uname);
System.exit(0);
}
});
list.addListSelectionListener(new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent e) {
// JOptionPane.showMessageDialog(null,
// list.getSelectedValue().toString());
}
});
writeContext.addKeyListener(new KeyListener() {
@Override
public void keyTyped(KeyEvent e) {
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e) {
if(e.getKeyCode() == KeyEvent.VK_ENTER){
String msg = writeContext.getText().trim();
if(msg.length() > 0){
service.sendMsg(uname + "^" + writeContext.getText());
}
writeContext.setText(null);
writeContext.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e) {
// TODO Auto-generated method stub
}
});
}
// 此线程类用于轮询读取服务器发送的消息
private class MsgThread extends Thread {
@Override
public void run() {
while (isRun) {
String msg = service.receiveMsg();
if (msg != null) {
if (msg.indexOf("[") != -1 && msg.lastIndexOf("]") != -1) {
msg = msg.substring(1, msg.length() - 1);
String[] userNames = msg.split(",");
modle.removeAllElements();
for (int i = 0; i < userNames.length; i++) {
modle.addElement(userNames[i].trim());
}
} else {
String str = readContext.getText() + msg;
readContext.setText(str);
readContext.selectAll();
}
}
}
}
}
// 显示界面
public void show() {
this.init();
service.sendMsg("open_" + uname);
MsgThread msgThread = new MsgThread();
msgThread.start();
this.frame.setVisible(true);
}
}Java NIO实现简单聊天室（GUI版）
登录界面:
package com.chatroom;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import com.chat.client.ChatFrame;
import com.chat.client.ClientService;
/*
* 登录聊天室
*/
public class LoginFrame extends JFrame{
static final long serialVersionUID = 1L;
static JTextField txtName;
static JButton btnOK;
static JLabel label;
public LoginFrame() {
this.setLayout(null);
Toolkit kit = Toolkit.getDefaultToolkit();
int w = kit.getScreenSize().width;
int h = kit.getScreenSize().height;
this.setBounds(w / 2 - 230 / 2, h / 2 - 200 / 2, 230, 200);
this.setTitle("设置名称");
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setResizable(false);
txtName = new JTextField(4);
this.add(txtName);
txtName.setBounds(10, 10, 100, 25);
btnOK = new JButton("OK");
this.add(btnOK);
btnOK.setBounds(120, 10, 80, 25);
label = new JLabel("[w:" + w + ",h:" + h + "]");
this.add(label);
label.setBounds(10, 40, 200, 100);
label.setText("在上面的文本框中输入名字
显示器宽度：" + w + "
显示器高度：" + h
+ "");
btnOK.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String uname = txtName.getText();
ClientService service = ClientService.getInstance();
ChatFrame chatFrame = new ChatFrame(service, uname);
chatFrame.show();
setVisible(false);
}
});
}
public static void main(String[] args) {
LoginFrame loginFrame = new LoginFrame();
loginFrame.setVisible(true);
}
}服务端：
package com.chatroom;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.Vector;
public class ChatServer implements Runnable{
Selector selector;
SelectionKey selectionKey;
boolean isRunning;
Vector usernames;//用来存放用户的名字
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
public ChatServer(int port) throws IOException {
isRunning = true;
usernames = new Vector<>();
init(port);
}
private void printInfo(String str) {
System.out.println("[" + sdf.format(new Date()) + "] -> " + str);
}
/*
* 初始化，启动服务器
*/
public void init(int port) throws IOException {
selector=Selector.open();
ServerSocketChannel server = ServerSocketChannel.open();
server.socket().bind(new InetSocketAddress(port));
server.configureBlocking(false);
selectionKey = server.register(selector, SelectionKey.OP_ACCEPT);
printInfo("启动服务器");
}
@Override
public void run() {
try {
while (isRunning) {
int n=selector.select();
if (n>0) {
Iterator iterator = selector.selectedKeys().iterator();
while (iterator.hasNext()) {
SelectionKey key = iterator.next();
/*
* 如有客户端进来则进行连接
*/
if (key.isAcceptable()) {
ServerSocketChannel serverSocketChannel = (ServerSocketChannel) key.channel();
SocketChannel socketChannel = serverSocketChannel.accept();
if (socketChannel==null) {
continue;
}
socketChannel.configureBlocking(false);
socketChannel.register(selector, SelectionKey.OP_READ);
}
if (key.isReadable()) {
readMsg(key);
}
if (key.isWritable()) {
writeMsg(key);
}
}
}
}
} catch (Exception e) {
// TODO: handle exception
}
}
/*
* 读取信息
*/
public void readMsg(SelectionKey key) throws IOException {
SocketChannel socketChannel = (SocketChannel) key.channel();
ByteBuffer buffer = ByteBuffer.allocate(1024);
StringBuffer sBuffer = new StringBuffer();
int count = socketChannel.read(buffer);//读取从客户端传过来的信息大小
/*
* 如果有信息则加到StringBuffer中
*/
if (count>0) {
buffer.flip();
sBuffer.append(new String(buffer.array(), 0, count));
}
/*将信息转换成字符串*/
String string = sBuffer.toString();
/*
* 处理用户上线的情况
*/
if (string.indexOf("open_") != -1) {
String name = string.substring(5);
printInfo(name+"上线");
usernames.add(name);
Iterator sIterator = selector.selectedKeys().iterator();
while (sIterator.hasNext()) {
SelectionKey keyss = sIterator.next();
if (keyss!=selectionKey) {
keyss.attach(usernames);
keyss.interestOps(keyss.interestOps() | SelectionKey.OP_WRITE);
}
}
/*
* 处理用户下线的情况
*/
} else if (string.indexOf("exit_") != -1) {
String username = string.substring(5);
usernames.remove(username);
key.attach("close");
key.interestOps(SelectionKey.OP_WRITE);
Iterator iterator = selector.selectedKeys().iterator();
while (iterator.hasNext()) {
SelectionKey sKey = iterator.next();
if (sKey != selectionKey && sKey != key) {
sKey.attach(usernames);
sKey.interestOps(sKey.interestOps() | SelectionKey.OP_WRITE);
}
}
printInfo(username+"下线");
/*
* 在控制台输出客户端的对话
*/
}else {
String username = string.substring(0, string.indexOf("^"));
String msg = string.substring(string.indexOf("^") + 1);
printInfo("("+username+")说：" + msg);
String dateTime = sdf.format(new Date());
String smsg = username + " " + dateTime + "\n " + msg + "\n";
Iterator iter = selector.selectedKeys().iterator();
while (iter.hasNext()) {
SelectionKey selKey = iter.next();
if (selKey != selectionKey) {
selKey.attach(smsg);
selKey.interestOps(selKey.interestOps() | SelectionKey.OP_WRITE);
}
}
}
}
/*
* 传递信息到客户端
*/
public void writeMsg(SelectionKey key) throws IOException {
SocketChannel socketChannel = (SocketChannel) key.channel();
Object object = key.attachment();
key.attach("");
if (object.toString().equals("close")) {
key.cancel();
socketChannel.socket().close();
socketChannel.close();
return ;
}else {
socketChannel.write(ByteBuffer.wrap(object.toString().getBytes()));
}
key.interestOps(SelectionKey.OP_READ);
}
public static void main(String[] args) throws IOException {
ChatServer chatServer = new ChatServer(4400);
new Thread(chatServer).start();
}
} 客户端：
package com.chatroom;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
import com.chat.client.ClientService;
public class ChatClient {
static final String HOST = "127.0.0.1";
static final int PORT = 4477;
static SocketChannel sc;
static Object lock = new Object();
static ChatClient chatClient;
public static ChatClient getInstance() throws IOException {
synchronized (lock) {
if (chatClient==null) {
chatClient = new ChatClient();
}
}
return chatClient;
}
public ChatClient() throws IOException {
sc=SocketChannel.open();
sc.configureBlocking(false);
sc.connect(new InetSocketAddress(HOST, PORT));
}
public void sendMsg(String string) throws IOException {
sc.write(ByteBuffer.wrap(string.getBytes()));
}
public String receiveMsg() throws InterruptedException, IOException {
ByteBuffer buffer = ByteBuffer.allocate(1024);
buffer.clear();
StringBuffer stringBuffer = new StringBuffer();
int count =0;
String msg = null;
Thread.sleep(100);
while ((count=sc.read(buffer))>0) {
stringBuffer.append(new String(buffer.array(), 0, count));
}
if (stringBuffer.length() > 0) {
msg = stringBuffer.toString();
if ("close".equals(stringBuffer.toString())) {
msg = null;
sc.close();
sc.socket().close();
}
}
return msg;
}
}聊天室主体：
package com.chatroom;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import com.chat.client.ClientService;
public class ChatFrame {
private JTextArea readContext = new JTextArea(18, 30);// 显示消息文本框
private JTextArea writeContext = new JTextArea(6, 30);// 发送消息文本框
private DefaultListModel modle = new DefaultListModel();// 用户列表模型
private JList list = new JList(modle);// 用户列表
private JButton btnSend = new JButton("发送");// 发送消息按钮
private JButton btnClose = new JButton("关闭");// 关闭聊天窗口按钮
private JFrame frame = new JFrame("ChatFrame");// 窗体界面
private String uname;// 用户姓名
private ClientService service;// 用于与服务器交互
private boolean isRun = false;// 是否运行
public ChatFrame(ClientService service, String uname) {
this.isRun = true;
this.uname = uname;
this.service = service;
}
// 初始化界面控件及事件
private void init() {
frame.setLayout(null);
frame.setTitle(uname + " 聊天窗口");
frame.setSize(500, 500);
frame.setLocation(400, 200);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
JScrollPane readScroll = new JScrollPane(readContext);
readScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
frame.add(readScroll);
JScrollPane writeScroll = new JScrollPane(writeContext);
writeScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
frame.add(writeScroll);
frame.add(list);
frame.add(btnSend);
frame.add(btnClose);
readScroll.setBounds(10, 10, 320, 300);
readContext.setBounds(0, 0, 320, 300);
readContext.setEditable(false);
readContext.setLineWrap(true);// 自动换行
writeScroll.setBounds(10, 315, 320, 100);
writeContext.setBounds(0, 0, 320, 100);
writeContext.setLineWrap(true);// 自动换行
list.setBounds(340, 10, 140, 445);
btnSend.setBounds(150, 420, 80, 30);
btnClose.setBounds(250, 420, 80, 30);
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
isRun = false;
service.sendMsg("exit_" + uname);
System.exit(0);
}
});
btnSend.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String msg = writeContext.getText().trim();
if(msg.length() > 0){
service.sendMsg(uname + "^" + writeContext.getText());
}
writeContext.setText(null);
writeContext.requestFocus();
}
});
btnClose.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
isRun = false;
service.sendMsg("exit_" + uname);
System.exit(0);
}
});
list.addListSelectionListener(new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent e) {
// JOptionPane.showMessageDialog(null,
// list.getSelectedValue().toString());
}
});
writeContext.addKeyListener(new KeyListener() {
@Override
public void keyTyped(KeyEvent e) {
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent e) {
if(e.getKeyCode() == KeyEvent.VK_ENTER){
String msg = writeContext.getText().trim();
if(msg.length() > 0){
service.sendMsg(uname + "^" + writeContext.getText());
}
writeContext.setText(null);
writeContext.requestFocus();
}
}
@Override
public void keyPressed(KeyEvent e) {
// TODO Auto-generated method stub
}
});
}
// 此线程类用于轮询读取服务器发送的消息
private class MsgThread extends Thread {
@Override
public void run() {
while (isRun) {
String msg = service.receiveMsg();
if (msg != null) {
if (msg.indexOf("[") != -1 && msg.lastIndexOf("]") != -1) {
msg = msg.substring(1, msg.length() - 1);
String[] userNames = msg.split(",");
modle.removeAllElements();
for (int i = 0; i < userNames.length; i++) {
modle.addElement(userNames[i].trim());
}
} else {
String str = readContext.getText() + msg;
readContext.setText(str);
readContext.selectAll();
}
}
}
}
}
// 显示界面
public void show() {
this.init();
service.sendMsg("open_" + uname);
MsgThread msgThread = new MsgThread();
msgThread.start();
this.frame.setVisible(true);
}
}