Java实现聊天室界面（java制作聊天界面）

本文实例为大家分享了java实现聊天室界面的具体代码，供大家参考，具体内容如下

服务器端：

package Server;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.util.ArrayList;

import java.util.List;

import javax.swing.BorderFactory;

import javax.swing.JFrame;

import javax.swing.JButton;

import javax.swing.JOptionPane;

import javax.swing.jscrollPane;

import javax.swing.JTextArea;

import javax.swing.JList;

import javax.swing.UIManager;

import javax.swing.UnsupportedLookAndFeelException;

public class ServerFrame extends JFrame implements ActionListener {

private JButton jbt_start;

private JButton jbt_stop;

private JButton jbt_exit;

private JTextArea jta_disMess;

private JList jlt_disUsers;

private Server server;

public List online_usernames;

public List online_usernameids;

public ServerFrame(Server server) {

this.server = server;

online_usernames = new ArrayList();

online_usernameids = new ArrayList();

try {

UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

} catch (ClassNotFoundException e) {

e.printStackTrace();

} catch (InstantiationException e) {

e.printStackTrace();

} catch (IllegalAccessException e) {

e.printStackTrace();

} catch (UnsupportedLookAndFeelException e) {

e.printStackTrace();

}

setTitle("\u670D\u52A1\u5668");

setIconImage(Toolkit.getDefaultToolkit().getImage("Images/socket.jpg"));

setSize(449, 301);

setResizable(false);

WinCenter.center(this);

addWindowListener(new WindowAdapter() {

@Override

public void windowClosing(WindowEvent arg0) {

jbt_exit.doClick();

}

});

getContentPane().setLayout(null);

jbt_start = new JButton("\u542F\u52A8\u670D\u52A1\u5668");

jbt_start.setBounds(32, 23, 103, 34);

jbt_start.addActionListener(this);

getContentPane().add(jbt_start);

jbt_stop = new JButton("\u505C\u6B62\u670D\u52A1\u5668");

jbt_stop.setBounds(145, 23, 103, 34);

jbt_stop.setEnabled(false);

jbt_stop.addActionListener(this);

getContentPane().add(jbt_stop);

jbt_exit = new JButton("\u9000\u51FA\u670D\u52A1\u5668");

jbt_exit.setBounds(258, 23, 103, 34);

jbt_exit.addActionListener(this);

getContentPane().add(jbt_exit);

JScrollPane scrollPane = new JScrollPane();

scrollPane.setBounds(10, 64, 221, 192);

scrollPane.setWheelScrollingEnabled(true);

scrollPane.setBorder(BorderFactory.createTitledBorder("聊天消息"));

getContentPane().add(scrollPane);

jta_disMess = new JTextArea();

scrollPane.setViewportView(jta_disMess);

JScrollPane scrollPane_1 = new JScrollPane();

scrollPane_1.setBounds(258, 65, 157, 191);

scrollPane_1.setBorder(BorderFactory.createTitledBorder("在线用户"));

getContentPane().add(scrollPane_1);

jlt_disUsers = new JList();

jlt_disUsers.setVisibleRowCount(4);

scrollPane_1.setViewportView(jlt_disUsers);

}

/**

*

*/

private static final long serialVersionUID = 1L;

@Override

public void actionPerformed(ActionEvent arg0) {

if (arg0.getSource() == jbt_start) {

jbt_start.setEnabled(false);

jbt_stop.setEnabled(true);

server.startServer();

}

if (arg0.getSource() == jbt_stop) {

int flag = JOptionPane.showConfirmDialog(this, "是否要停止服务器？", "",

JOptionPane.OK_CANCEL_OPBwZAcTION, JOptionPane.QUESTION_MESSAGE);

if (flag == JOptionPane.OK_OPTION) {

server.stopServer();

jbt_start.setEnabled(true);

jbt_stop.setEnabled(false);

}

}

if (arg0.getSource() == jbt_exit) {

if (jbt_stop.isEnabled()) {

jbt_stop.doClick();

}

server.close();

}

}

public void setDisUsers(String userNames) {

if (userNames.equals("@userlist")) {

jlt_disUsers.removeAll();

String[] user_null = new String[]{};

jlt_disUsers.setListData(user_null);

} else {

if (userNames.contains("@userlist")) {

String[] dis = userNames.split("@userlist");

String[] disUsernames = new String[dis.length / 2];

int j = 0;

for (int i = 0; i < dis.length; i++) {

disUsernames[j++] = dis[i++];

}

jlt_disUsers.removeAll();

jlt_disUsers.setListData(disUsernames);

}

if (userNames.contains("@exit")) {

String[] dis = {};

jlt_disUsers.setListData(dis);

}

}

}

public void setDisMess(String message) {

if (message.contains("@chat")) {

http:// int local = message.indexOf("@chat");

jta_disMess.append(message.substring(0, local) + "\n");

jta_disMess.setCaretPosition(jta_disMess.getText().length());

}

if (message.contains("@exit")) {

jta_disMess.setText("");

}

}

public void setStartAndStopUnable() {

JOptionPane.showMessageDialog(this, "不能同时开启两个服务器");

jbt_start.setEnabled(false);

jbt_stop.setEnabled(false);

}

}

设置窗口居中代码：

package Server;

import java.awt.Dimension;

import java.awt.Toolkit;

import java.awt.Window;

public class WinCenter {

public static void center(Window win) {

Toolkit tkit = Toolkit.getDefaultToolkit();

Dimension sSize = tkit.getScreenSize();

Dimension wSize = win.getSize();

if (wSize.height > sSize.height) {

wSize.height = sSize.height;

}

if (wSize.width > sSize.width) {

wSize.width = sSize.width;

}

win.setLocation((sSize.width - wSize.width) / 2, (sSize.height - wSize.height) / 2);

}

}

客户端：

登录界面

package Client;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.UIManager;

import javax.swing.UnsupportedLookAndFeelException;

import java.awt.Font;

import java.awt.Toolkit;

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 java.net.Inet4Address;

import java.net.UnknownHostException;

import javax.swing.JTextField;

import javax.swing.JButton;

public class Client_enterFrame extends JFrame implements ActionListener, KeyListener {

public Client_enterFrame(Client client) {

this.client = client;

try {

UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

} catch (ClassNotFoundException e1) {

e1.printStackTrace();

} catch (InstantiationException e1) {

e1.printStackTrace();

} catch (IllegalAccessException e1) {

e1.printStackTrace();

} catch (UnsupportedLookAndFeelException e1) {

e1.printStackTrace();

}

setIconImage(Toolkit.getDefaultToolkit().getImage("Images/socket.jpg"));

setTitle("\u804A\u5929\u5BA4");

getContentPane().setLayout(null);

setSize(296, 249);

WinCenter.center(this);

setResizable(false);

addWindowListener(new WindowAdapter() {

@Override

public void windowClosing(WindowEvent e) {

jbt_exit.doClick();

}

});

JLabel lblNewLabel = new JLabel("\u7528\u6237\u540D");

lblNewLabel.setFont(new Font("宋体", Font.PLAIN, 14));

lblNewLabel.setBounds(23, 30, 81, 34);

getContentPane().add(lblNewLabel);

jtf_username = new JTextField();

jtf_username.addKeyListener(this);

jtf_username.setBounds(114, 30, 143, 34);

getContentPane().add(jtf_username);

jtf_username.setColumns(10);

JLabel lblNewLabel_1 = new JLabel("\u670D\u52A1\u5668\u5730\u5740");

lblNewLabel_1.setFont(new Font("宋体", Font.PLAIN, 14));

lblNewLabel_1.setBounds(23, 74, 81, 34);

getContentPane().add(lblNewLabel_1);

jtf_hostIp = new JTextField();

jtf_hostIp.setBounds(114, 74, 143, 34);

jtf_hostIp.addKeyListener(this);

getContentPane().add(jtf_hostIp);

try {

String ip = (String) Inet4Address.getLocalHost().getHostAddress();

jtf_hostIp.setText(ip);

} catch (UnknownHostException e) {

e.printStackTrace();

}

jtf_hostIp.setColumns(10);

JLabel lblNewLabel_2 = new JLabel("\u7AEF\u53E3\u53F7");

lblNewLabel_2.setFont(new Font("宋体", Font.PLAIN, 14));

lblNewLabel_2.setBounds(23, 118, 81, 34);

getContentPane().add(lblNewLabel_2);

jtf_hostPort = new JTextField();

jtf_hostPort.addKeyListener(this);

jtf_hostPort.setBounds(114, 118, 143, 34);

getContentPane().add(jtf_hostPort);

jtf_hostPort.setText("5000");

jtf_hostPort.setColumns(10);

jbt_enter = new JButton("\u8FDB\u5165\u804A\u5929\u5BA4");

jbt_enter.addActionListener(this);

jbt_enter.addKeyListener(this);

jbt_enter.setFont(new Font("宋体", Font.PLAIN, 14));

jbt_enter.setBounds(23, 162, 108, 39);

getContentPane().add(jbt_enter);

jbt_exit = new JButton("\u9000\u51FA\u804A\u5929\u5BA4");

jbt_exit.setFont(new Font("宋体", Font.PLAIN, 14));

jbt_exit.setBounds(144, 162, 113, 39);

jbt_exit.addActionListener(this);

getContentPane().add(jbt_exit);

}

/**

*

*/

private static final long serialVersionUID = 1L;

private JTextField jtf_username;

private JTextField jtf_hostIp;

private JTextField jtf_hostPort;

private JButton jbt_enter;

private JButton jbt_exit;

private Client client;

@Override

public void actionPerformed(ActionEvent e) {

if (e.getSource() == jbt_exit) {

setVisible(false);

client.exitLogin();

}

if (e.getSource() == jbt_enter) {

String username = jtf_username.getText();

username.trim();

String hostIp = jtf_hostIp.getText();

hostIp.trim();

String hostPort = jtf_hostPort.getText();

hostPort.trim();

if (!username.equals("")) {

if (!hostIp.equals("")) {

if (!hostPort.equals("")) {

String login_mess = client.login(username, hostIp, hostPort);

if (login_mess.equals("true")) {

this.setVisible(false);

client.showChatFrame(username);

} else {

JOptionPane.showMessageDialog(this, login_mess);

}

} else {

JOptionPane.showMessageDialog(this, "服务器连接端口号不能为空！");

}

} else {

JOptionPane.showMessageDialog(this, "服务器地址不能为空！");

}

} else {

http:// JOptionPane.showMessageDialog(this, "用户名不能为空！");

}

}

}

@Override

public void keyPressed(KeyEvent arg0) {

if (arg0.getKeyCode() == KeyEvent.VK_ENTER) {

jbt_enter.doClick();

}

}

@Override

public void keyReleased(KeyEvent arg0) {

}

@Override

public void keyTyped(KeyEvent arg0) {

}

}

聊天主界面

package Client;

import java.awt.Font;

import java.awt.Toolkit;

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 java.util.ArrayList;

import java.util.List;

import javax.swing.BorderFactory;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JList;

import javax.swing.JOptionPane;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import javax.swing.ListModel;

import javax.swing.ListSelectionModel;

import javax.swing.UIManager;

import javax.swing.UnsupportedLookAndFeelException;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

public class Client_chatFrame extends JFrame implements ActionListener,

KeyListener, ListSelectionListener {

public Client_chatFrame(Client client, String title) {

this.client = client;

try {

UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

} catch (ClassNotFoundException e) {

e.printStackTrace();

} catch (InstantiationException e) {

e.printStackTrace();

} catch (IllegalAccessException e) {

e.printStackTrace();

} catch (UnsupportedLookAndFeelException e) {

e.printStackTrace();

}

setIconImage(Toolkit.getDefaultToolkit().getImage("Images/socket.jpg"));

setTitle("\u804A\u5929\u5BA4" + " " + title);

setSize(450, 325);

WinCenter.center(this);

setResizable(false);

addWindowListener(new WindowAdapter() {

@Override

public void windowClosing(WindowEvent arg0) {

jbt_exit.doClick();

}

});

getContentPane().setLayout(null);

JScrollPane scrollPane = new JScrollPane();

scrollPane.setBorder(BorderFactory.createTitledBorder("聊天消息"));

scrollPane.setBounds(10, 10, 283, 167);

scrollPane.setWheelScrollingEnabled(true);

getContentPane().add(scrollPane);

jta_disMess = new JTextArea();

jta_disMess.setEditable(false);

scrollPane.setViewportView(jta_disMess);

jtf_inputMess = new JTextField();

jtf_inputMess.addKeyListener(this);

jtf_inputMess.setBounds(10, 242, 192, 32);

getContentPane().add(jtf_inputMess);

jtf_inputMess.setColumns(10);

jbt_trans = new JButton("\u53D1 \u9001");

jbt_trans.setFont(new Font("宋体", Font.PLAIN, 14));

jbt_trans.setBounds(212, 241, 93, 32);

jbt_trans.addActionListener(this);

getContentPane().add(jbt_trans);

jbt_clear = new JButton("\u6E05\u9664\u804A\u5929\u8BB0\u5F55");

jbt_clear.setFont(new Font("宋体", Font.PLAIN, 14));

jbt_clear.setBounds(158, 187, 135, 37);

jbt_clear.addActionListener(this);

getContentPane().add(jbt_clear);

jbt_exit = new JButton("\u9000\u51FA\u804A\u5929\u5BA4");

jbt_exit.setFont(new Font("宋体", Font.PLAIN, 14));

jbt_exit.setBounds(20, 189, 128, 37);

jbt_exit.addActionListener(this);

getContentPane().add(jbt_exit);

scrollPane_1 = new JScrollPane();

scrollPane_1.setBorder(BorderFactory.createTitledBorder("在线用户"));

scrollPane_1.setBounds(303, 10, 128, 214);

getContentPane().add(scrollPane_1);

jlt_disUsers = new JList();

jlt_disUsers.setVisibleRowCount(4);

jlt_disUsers.setSelectedIndex(0);

jlt_disUsers

.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);

jlt_disUsers.addListSelectionListener(this);

scrollPane_1.setViewportView(jlt_disUsers);

jbt_singlChat = new JButton("\u5355\u4EBA\u804A\u5929");

jbt_singlChat.setBounds(315, 241, 116, 32);

jbt_singlChat.addActionListener(this);

getContentPane().add(jbt_singlChat);

}

/**

*

*/

private static final long serialVersionUID = 1L;

private JTextField jtf_inputMess;

private JTextArea jta_disMess;

private JButton jbt_trans;

private JButton jbt_clear;

private JButton jbt_exit;

private JList jlt_disUsers;

private JButton jbt_singlChat;

private JScrollPane scrollPane_1;

private Client client;

@Override

public void actionPerformed(ActionEvent e) {

if (e.getSource() == jbt_clear) {

jta_disMess.setText("");

}

if (e.getSource() == jbt_trans) {

String mess = jtf_inputMess.getText();

mess.trim();

jtf_inputMess.setText("");

if (mess.equals("")) {

JOptionPane.showMessageDialog(this, "不能发送空消息");

jtf_inputMess.setText("");

} else {

client.transMess(mess);

}

}

if (e.getSource() == jbt_exit) {

if (JOptionPane.OK_OPTION == JOptionPane.showConfirmDialog(this,

"是否确定要退出聊天室？", "提示", JOptionPane.OK_CANCEL_OPTION)) {

this.setVisible(false);

client.exitChat();

System.exit(0);

}

}

if (e.getSource() == jbt_singlChat) {

String user_names = (String) jlt_disUsers.getSelectedValue();

if (user_names == null) {

JOptionPane.showMessageDialog(this, "您未选择聊天对象\n请选择要单独聊天的对象");

} else {

if (!client.c_singleFrames.containsKey(user_names)) {

createSingleChatFrame(user_names);

} else {

client.c_singleFrames.get(user_names)

.setFocusableWindowState(true);

}

}

}

}

@Override

public void keyPressed(KeyEvent arg0) {

if (arg0.getKeyCode() == KeyEvent.VK_ENTER) {

if (arg0.getSource() == jtf_inputMess) {

jbt_trans.doClick();

}

}

}

@Override

public void keyReleased(KeyEvent arg0) {

}

@Override

public void keyTyped(KeyEvent arg0) {

}

public void setDisMess(String substring) {

int local = substring.indexOf("@chat");

jta_disMess.append(substring.substring(0, local) + "\n");

jta_disMess.setCaretPosition(jta_disMess.getText().length());

}

public void setDisUsers(String chat_re) {

String[] infos = chat_re.split("@userlist");

String[] info = new String[infos.length / 2];

for (int i = 1; i < infos.length; i++) {

int id_user = 0;

try {

id_user = Integer.parseInt(infos[i]);

if (client.getThreadID() == id_user) {

if (!client.username.equals(infos[i - 1])) {

JOptionPane.showMessageDialog(this,

"由于有同名的用户登录，所以您的用户名后面加上了编号");

client.username = infos[i - 1];

this.setTitle("聊天室 " + client.username);

break;

} else {

break;

}

} else {

i++;

}

} catch (Exception e) {

}

}

if (infos.length == 2) {

String[] s = new String[]{};

if (!client.c_singleFrames.isEmpty()) {

ListModel list = jlt_disUsers.getModel();

for (int i = 0; i < list.getSize(); i++) {

if (client.c_singleFrames.get(list.getElementAt(i)) != null) {

client.c_singleFrames.get(list.getElementAt(i))

.setExitNotify();

}

}

}

jlt_disUsers.removeAll();

jlt_disUsers.setListData(s);

} else {

if ((infos.length / 2 - 1) < client.username_online.size()) {

// 有人下线

List rec = new ArrayList();

int i = 0;

for (; i < infos.length; i++) {

rec.add(0, infos[i++]);

}

for (i = 0; i < client.username_online.size(); i++) {

if (!rec.contains(client.username_online.get(i))) {

break;

}

}

String name = client.username_online.get(i);

client.username_online.remove(i);

try {

client.clientuserid.remove(i);

} catch (Exception e) {

e.printStackTrace();

}

if (client.c_singleFrames.containsKey(name)) {

client.c_singleFrames.get(name).closeSingleFrame();

client.c_singleFrames.remove(name);

}

} else {

List online = new ArrayList();

for (int i = 0; i < client.username_online.size(); i++) {

online.add(0, client.clientuserid.get(i));

}

if (online.isEmpty()) {

for (int i = 1; i < infos.length; i++) {

if ((int) Integer.parseInt(infos[i]) != client

.getThreadID()) {

client.username_online.add(0, infos[i - 1]);

client.clientuserid.add(0,

Integer.parseInt(infos[i]));

}

i++;

}

} else {

for (int i = 1; i < infos.length; i++) {

if (Integer.parseInt(infos[i]) != client.getThreadID()) {

if (!online.contains(Integer.parseInt(infos[i]))) {

client.username_online.add(0, infos[i - 1]);

client.clientuserid.add(0,

Integer.parseInt(infos[i]));

} else {

String name = client.username_online

.get(client.clientuserid

.indexOf(Integer

.parseInt(infos[i])));

if (!name.equals(infos[i - 1])) {

if (client.c_singleFrames.containsKey(name)) {

Client_singleFrame cf = client.c_singleFrames

.get(name);

cf.setTitle(name);

client.c_singleFrames.remove(name);

client.c_singleFrames.put(name, cf);

cf.setVisible(false);

}

client.username_online.remove(name);

client.clientuserid.remove(new Integer(

Integer.parseInt(infos[i])));

client.username_online.add(0, infos[i - 1]);

client.clientuserid.add(0,

Integer.parseInt(infos[i]));

}

}

}

i++;

}

}

}

try {

for (int i = 0; i < client.username_online.size(); i++) {

info[i] = client.username_online.get(i);

}

} catch (Exception e) {

}

jlt_disUsers.removeAll();

jlt_disUsers.setListData(info);

}

}

public void closeClient() {

JOptionPane.showMessageDialog(this, "服务器已关闭", "提示",

JOptionPane.OK_OPTION);

client.exitClient();

setVisible(false);

}

@Override

public void valueChanged(ListSelectionEvent e) {

if (e.getSource() == jlt_disUsers) {

}

}

public void createSingleChatFrame(String name) {

Client_singleFrame c_singlFrame = new Client_singleFrame(client, name);

client.c_singleFrames.put(name, c_singlFrame);

try {

c_singlFrame.userThreadID = client.clientuserid

.get(client.username_online.indexOf(name));

} catch (Exception e) {

}

c_singlFrame.setVisible(true);

}

public void setSingleFrame(String chat_re) {

String[] infos = chat_re.split("@single");

try {

if (client.c_singleFrames.containsKey(infos[0])) {

client.c_singleFrames.get(infos[0]).setDisMess(infos[3]);

} else {

createSingleChatFrame(infos[0]);

client.c_singleFrames.get(infos[0]).setDisMess(infos[3]);

}

} catch (Exception e) {

}

}

}

单人聊天界面

package Client;

import java.awt.BorderLayout;

import java.awt.Component;

import java.awt.Container;

import java.awt.Toolkit;

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 java.io.IOException;

import java.text.SimpleDateFormat;

import java.util.Date;

import javax.swing.BorderFactory;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import javax.swing.UIManager;

import javax.swing.UnsupportedLookAndFeelException;

public class Client_singleFrame extends JFrame implements ActionListener, KeyListener {

/**

*

*/

private static final long serialVersionUID = 1L;

private static JTextArea jta_disMess;

private JTextField jtf_inputMess;

private JButton jbt_trans;

public int userThreadID = 0;

private Client client;

public Client_singleFrame(Client client, String title) {

this.client = client;

init(title);

}

private void init(String title) {

try {

UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

} catch (ClassNotFoundException e1) {

e1.printStackTrace();

} catch (InstantiationException e1) {

e1.printStackTrace();

} catch (IllegalAccessException e1) {

e1.printStackTrace();

} catch (UnsupportedLookAndFeelException e1) {

e1.printStackTrace();

}

setIconImage(Toolkit.getDefaultToolkit().getImage("Images/socket.jpg"));

WinCenter.center(this);

setTitle(title);

setSize(400, 400);

setResizable(false);

setContentPane(createContentPanel());

addWindowListener(new WindowAdapter() {

@Override

public void windowClosing(WindowEvent e) {

closeSingleFrame();

}

});

}

private Container createContentPanel() {

JPanel jp = new JPanel();

jp.setBorder(BorderFactory.createTitledBorder("聊天消息"));

jp.setLayout(new BorderLayout());

jta_disMess = new JTextArea();

jta_disMess.setEditable(false);

jp.add(BorderLayout.CENTER, new JScrollPane(jta_disMess));

jp.add(BorderLayout.SOUTH, createInput());

return jp;

}

private Component createInput() {

JPanel jp = new JPanel();

jp.setBorder(BorderFactory.createTitledBorder("发送消息"));

jp.setLayout(new BorderLayout());

jtf_inputMess = new JTextField();

jtf_inputMess.addKeyListener(this);

jbt_trans = new JButton("发送");

jbt_trans.addActionListener(this);

jp.add(jtf_inputMess, BorderLayout.CENTER);

jp.add(jbt_trans, BorderLayout.EAST);

return jp;

}

@Override

public void keyPressed(KeyEvent arg0) {

if (arg0.getKeyCode() == KeyEvent.VK_ENTER) {

if (arg0.getSource() == jtf_inputMess) {

jbt_trans.doClick();

}

}

}

@Override

public void keyReleased(KeyEvent arg0) {

}

@Override

public void keyTyped(KeyEvent arg0) {

}

@Override

public void actionPerformed(ActionEvent e) {

if (e.getSource() == jbt_trans) {

String str = jtf_inputMess.getText();

str.trim();

jtf_inputMess.setText("");

if (str.equals("")) {

JOptionPane.showMessageDialog(this, "信息不能为空");

} else {

SimpleDateFormat form = new SimpleDateFormat("yyyy-MM-dd HH:mm");

String date = form.format(new Date());

String mess = client.username + " " + date + "\n" + str;

jta_disMess.append(mess + "\n");

jta_disMess.setCaretPosition(jta_disMess.getText().length());

int index = client.username_online.indexOf(this.getTitle());

String info = client.username + "@single" + client.getThreadID() + "@single" +

(int) client.clientuserid.get(index) + "@single" +

mess + "@single";

try {

client.dos.writeUTF(info);

} catch (IOException e1) {

e1.printStackTrace();

}

}

}

}

public void setDisMess(String chat_re) {

jta_disMess.append(chat_re + "\n");

jta_disMess.setCaretPosition(jta_disMess.getText().length());

}

public void closeSingleFrame() {

client.c_singleFrames.remove(this.getTitle());

setVisible(false);

}

public void setExitNotify() {

jta_disMess.append(this.getTitle() + "已下线.....");

jbt_trans.setEnabled(false);

}

}

设置窗体居中

package Client;

import java.awt.Dimension;

import java.awt.Toolkit;

import java.awt.Window;

public class WinCenter {

public static void center(Window win) {

Toolkit tkit = Toolkit.getDefaultToolkit();

Dimension sSize = tkit.getScreenSize();

Dimension wSize = win.getSize();

if (wSize.height > sSize.height) {

wSize.height = sSize.height;

}

if (wSize.width > sSize.width) {

wSize.width = sSize.width;

}

win.setLocation((sSize.width - wSize.width) / 2, (sSize.height - wSize.height) / 2);

}

}

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。