java局域网聊天小程序-eolink官网

java局域网聊天小程序

本文实例为大家分享了java局域网聊天程序的具体代码，供大家参考，具体内容如下

有服务器端和客户端两个界面，运行需要加上自己的ip地址，端口可以随意，但是客户端端口，和服务器端口要一样，然后就可以几个人一块聊天了

简单贴几个代码吧

Client.java 客户端代码

package chat;

import java.awt.BorderLayout;//布置容器的边框布局

import java.awt.Color;

import java.awt.Container;

import java.awt.GridLayout;//布局处理器

import java.awt.Toolkit;//抽象超类

import java.awt.event.ActionEvent;//指示发生了组件定义的动作的语义事件

import java.awt.event.ActionListener;//用于接收操作事件的侦听器接口

import java.awt.event.MouseEvent;//指示组件中发生鼠标动作的事件

import java.awt.event.MouseListener;//鼠标事件的侦听器接口

import java.awt.event.WindowAdapter;//接收窗口事件的抽象适配器类。此类中的方法为空。此类存在的目的是方便创建侦听器对象

import java.awt.event.WindowEvent;//指示窗口状态改变的低级别事件

import java.io.BufferedReader;//提供通用的缓冲方式文本读取

import java.io.IOException;//输入输出异常

import java.io.InputStreamReader;//字节流通向字符流的桥梁

import java.io.PrintWriter;//向文本输出流打印对象的格式化表示形式

import java.net.Socket;//套接字，网络上的两个程序通过一个双向的通信连接实现数据交换的通信

import java.util.HashMap;// HashMap 是 Map 接口的常用实现类

import java.util.Map;//存数据，将键映射到值的对象

import java.util.StringTokenizer;//允许应用程序将字符串分解为标记

import javax.swing.BorderFactory;//创建一个浮雕式的边框

import javax.swing.DefaultListModel;//列表模型

import javax.swing.JButton;//按钮

import javax.swing.JFrame;//窗口

import javax.swing.JLabel;//标签

import javax.swing.JList;//列表

import javax.swing.JOptionPane;//对话框

import javax.swing.JPanel;

import javax.swing.jscrollPane;//视图

import javax.swing.JSplitPane;//分隔

import javax.swing.JTextArea;//多行文本

import javax.swing.JTextField;//文本

import javax.swing.border.EmptyBorder;//一个占用空间但不执行绘制的空透明边框

import javax.swing.border.TitledBorder;//该类实现在指定位置以指定对齐方式显示字符串标题的任意边框

import oldchat.ChatFrame;

public class Client

{

private JFrame frame;

private JList userList;

private JTextArea textArea;

private JTextField textField;

private JTextField txt_port;

private JTextField txt_hostIp;

private JTextField txt_name;

private JButton btn_start;

private JButton btn_stop;

private JButton btn_send;

private JPanel northPanel;

private JPanel southPanel;

private JScrollPane rightScroll;

private JScrollPane leftScroll;

private JSplitPane centerSplit;

private DefaultListModel listModel;

private boolean isConnected = false;

private Socket socket;//创建套接字

private PrintWriter writer;

private BufferedReader reader;

private MessageThread messageThread;// 负责接收消息的线程

private Map onLineUsers = new HashMap();// 所有在线用户

// 主方法,程序入口

public static void main(String[] args)

{

new Client();

}

// 执行发送

public void send()

{

if (!isConnected)

{

JOptionPane.showMessageDialog(frame, "还没有连接服务器，无法发送消息！", "错误",

JOptionPane.ERROR_MESSAGE);

return;

}

String message = textField.getText().trim();

if (message == null || message.equals(""))

{

JOptionPane.showMessageDialog(frame, "消息不能为空！", "错误",

JOptionPane.ERROR_MESSAGE);

return;

}

sendMessage(frame.getTitle() + "@" + "ALL" + "@" + message);

textField.setText(null);

}

// 构造方法

public Client()

{

textArea = new JTextArea();

textArea.setEditable(false);

textArea.setForeground(Color.blue);

textField = new JTextField();

txt_port = new JTextField("6666");

txt_hostIp = new JTextField();

txt_name = new JTextField();

btn_start = new JButton("连接");

btn_stop = new JButton("断开");

btn_send = new JButton("发送");

listModel = new DefaultListModel();

userList = new JList(listModel);

northPanel = new JPanel();

northPanel.setLayout(new GridLayout(1, 7));

northPanel.add(new JLabel("端口"));

northPanel.add(txt_port);

northPanel.add(new JLabel("服务器IP"));

northPanel.add(txt_hostIp);

northPanel.add(new JLabel("姓名"));

northPanel.add(txt_name);

northPanel.add(btn_start);

northPanel.add(btn_stop);

northPanel.setBorder(new TitledBorder("连接信息"));

rightScroll = new JScrollPane(textArea);

rightScroll.setBorder(new TitledBorder("群聊消息显示区"));

leftScroll = new JScrollPane(userList);

leftScroll.setBorder(new TitledBorder("在线用户(双击私聊)"));

southPanel = new JPanel(new BorderLayout());

southPanel.add(textField, "Center");

southPanel.add(btn_send, "East");

southPanel.setBorder(new TitledBorder("写消息"));

centerSplit = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, leftScroll,

rightScroll);

centerSplit.setDividerLocation(100);

frame = new JFrame("客户端");

// 更改JFrame的图标：

//frame.setIconImage(Toolkit.getDefaultToolkit().createImage(Client.class.getResource("qq.jpg")));

frame.setLayout(new BorderLayout());

frame.add(northPanel, "North");

frame.add(centerSplit, "Center");

frame.add(southPanel, "South");

frame.setSize(600, 400);

int screen_width = Toolkit.getDefaultToolkit().getScreenSize().width;

int screen_height = Toolkit.getDefaultToolkit().getScreenSize().height;

frame.setLocation((screen_width - frame.gehttp://tWidth()) / 2,

(screen_height - frame.getHeight()) / 2);

frame.setVisible(true);

// 写消息的文本框中按回车键时事件

textField.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent arg0)

{

send();

}

});

// 单击发送按钮时事件

btn_send.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

send();

}

});

// 单击连接按钮时事件

btn_start.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

int port;

if (isConnected) {

JOptionPane.showMessageDialog(frame, "已处于连接上状态，不要重复连接!",

"错误", JOptionPane.ERROR_MESSAGE);

return;

}

try {

port = Integer.parseInt(txt_port.getText().trim());

} catch (NumberFormatException e2) {

throw new Exception("端口号不符合要求!端口为整数!");

}

String hostIp = txt_hostIp.getText().trim();

String name = txt_name.getText().trim();

if (name.equals("") || hostIp.equals("")) {

throw new Exception("姓名、服务器IP不能为空!");

}

boolean flag = connectServer(port, hostIp, name);

if (flag == false) {

throw new Exception("与服务器连接失败!");

}

frame.setTitle(name);

JOptionPane.showMessageDialog(frame, "成功连接!");

} catch (Exception exc) {

JOptionPane.showMessageDialog(frame, exc.getMessage(),

"错误", JOptionPane.ERROR_MESSAGE);

}

});

//双击聊天（私聊）

userList.addMouseListener(new MouseListener()

{

public void mouseReleased(MouseEvent e) {}

public void mousePressed(MouseEvent e) {}

public void mouseExited(MouseEvent e) {}

public void mouseEntered(MouseEvent e) {}

public void mouseClicked(MouseEvent e)

{

if(e.getClickCount()==2)

{

User user=onLineUsers.get(userList.getSelectedValue());

ChatFrame.main(user.getIp());;

}

});

// 单击断开按钮时事件

btn_stop.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

if (!isConnected) {

JOptionPane.showMessageDialog(frame, "已处于断开状态，不要重复断开!",

"错误", JOptionPane.ERROR_MESSAGE);

return;

}

try {

boolean flag = closeConnection();// 断开连接

if (flag == false) {

throw new Exception("断开连接发生异常！");

}

JOptionPane.showMessageDialog(frame, "成功断开!");

} catch (Exception exc) {

JOptionPane.showMessageDialog(frame, exc.getMessage(),

"错误", JOptionPane.ERROR_MESSAGE);

}

});

// 关闭窗口时事件

frame.addWindowListener(new WindowAdapter()

{

public void windowClosing(WindowEvent e)

{

if (isConnected) {

closeConnection();// 关闭连接

}

System.exit(0);// 退出程序

}

});

}

/**

* 连接服务器

* @param port

* @param hostIp

* @param name

public boolean connectServer(int port, String hostIp, String name)

{

// 连接服务器

try {

socket = new Socket(hostIp, port);// 根据端口号和服务器ip建立连接

writer = new PrintWriter(socket.getOutputStream());

reader = new BufferedReader(new InputStreamReader(socket

.getInputStream()));

// 发送客户端用户基本信息(用户名和ip地址)

sendMessage(name + "@" + socket.getLocalAddress().toString());

// 开启接收消息的线程

messageThread = new MessageThread(reader, textArea);

messageThread.start();

isConnected = true;// 已经连接上了

return true;

} catch (Exception e) {

textArea.append("与端口号为：" + port + " IP地址为：" + hostIp

+ " 的服务器连接失败!" + "\r\n");

isConnected = false;// 未连接上

return false;

}

/**

* 发送消息

* @param message

public void sendMessage(String message)

{

writer.println(message);

writer.flush();

}

/**

* 客户端主动关闭连接

@SuppressWarnings("deprecation")

public synchronized boolean closeConnection()

{

try {

sendMessage("CLOSE");// 发送断开连接命令给服务器

messageThread.stop();// 停止接受消息线程

// 释放资源

if (reader != null) {

reader.close();

}

if (writer != null) {

writer.close();

}

if (socket != null) {

socket.close();

}

isConnected = false;

return true;

} catch (IOException e1) {

e1.printStackTrace();

isConnected = true;

return false;

}

// 不断接收消息的线程

class MessageThread extends Thread {

private BufferedReader reader;

private JTextArea textArea;

// 接收消息线程的构造方法

public MessageThread(BufferedReader reader, JTextArea textArea)

{

this.reader = reader;

this.textArea = textArea;

}

// 被动的关闭连接

public synchronized void closeCon() throws Exception

{

// 清空用户列表

listModel.removeAllElements();

// 被动的关闭连接释放资源

if (reader != null) {

reader.close();

}

if (writer != null) {

writer.close();

}

if (socket != null) {

socket.close();

}

isConnected = false;// 修改状态为断开

}

public void run() {

String message = "";

while (true) {

try {

message = reader.readLine();

StringTokenizer stringTokenizer = new StringTokenizer(message, "/@");

String command = stringTokenizer.nextToken();// 命令

if (command.equals("CLOSE"))// 服务器已关闭命令

{

textArea.append("服务器已关闭!\r\n");

closeCon();// 被动的关闭连接

return;// 结束线程

} else if (command.equals("ADD")) {// 有用户上线更新在线列表

String username = "";

String userIp = "";

if ((username = stringTokenizer.nextToken()) != null

&& (userIp = stringTokenizer.nextToken()) != null)

{

User user = new User(username, userIp);

onLineUsers.put(username, user);

listModel.addElement(username);

}

} else if (command.equals("DELETE")) {// 有用户下线更新在线列表

String username = stringTokenizer.nextToken();

User user = (User) onLineUsers.get(username);

onLineUsers.remove(user);

listModel.removeElement(username);

} else if (command.equals("USERLIST")) {// 加载在线用户列表

int size = Integer

.parseInt(stringTokenizer.nextToken());

String username = null;

String userIp = null;

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

username = stringTokenizer.nextToken();

userIp = stringTokenizer.nextToken();

User user = new User(username, userIp);

onLineUsers.put(username, user);

listModel.addElement(username);

}

} else if (command.equals("MAX")) {// 人数已达上限

textArea.append(stringTokenizer.nextToken()

+ stringTokenizer.nextToken() + "\r\n");

closeCon();// 被动的关闭连接

JOptionPane.showMessageDialog(frame, "服务器缓冲区已满！", "错误",

JOptionPane.ERROR_MESSAGE);

return;// 结束线程

} else {// 普通消息

textArea.append(message + "\r\n");

}

} catch (IOException e) {

e.printStackTrace();

} catch (Exception e) {

e.printStackTrace();

}

Server.java

package chat;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.GridLayout;

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.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.net.BindException;

import java.net.ServerSocket;

import java.net.Socket;

import java.util.ArrayList;

import java.util.StringTokenizer;

import javax.swing.DefaultListModel;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JList;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JSplitPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import javax.swing.border.TitledBorder;

public class Server

{

private JFrame frame;

private JTextArea contentArea;

private JTextField txt_message;

private JTextField txt_max;

private JTextField txt_port;

private JButton btn_start;

private JButton btn_stop;

private JButton btn_send;

private JPanel northPanel;

private JPanel southPanel;

private JScrollPane rightPanel;

private JScrollPane leftPanel;

private JSplitPane centerSplit;

private JList userList;

private DefaultListModel listModel;

private ServerSocket serverSocket;

private ServerThread serverThread;

private ArrayList clients;

private boolean isStart = false;

// 主方法,程序执行入口

public static void main(String[] args)

{

new Server();

}

// 执行消息发送

public void send()

{

if (!isStart)

{

JOptionPane.showMessageDialog(frame, "服务器还未启动,不能发送消息！", "错误",

JOptionPane.ERROR_MESSAGE);

return;

}

if (clients.size() == 0)

{

JOptionPane.showMessageDialog(frame, "没有用户在线,不能发送消息！", "错误",

JOptionPane.ERROR_MESSAGE);

return;

}

String message = txt_message.getText().trim();

if (message == null || message.equals(""))

{

JOptionPane.showMessageDialog(frame, "消息不能为空！", "错误",

JOptionPane.ERROR_MESSAGE);

return;

}

sendServerMessage(message);// 群发服务器消息

contentArea.append("服务器说：" + txt_message.getText() + "\r\n");

txt_message.setText(null);

}

// 构造放法

public Server()

{

frame = new JFrame("服务器");

// 更改JFrame的图标：

//frame.setIconImage(Toolkit.getDefaultToolkit().createImage(Client.class.getResource("qq.png")));

//frame.setIconImage(Toolkit.getDefaultToolkit().createImage(Server.class.getResource("qq.jpg")));

contentArea = new JTextArea();

contentArea.setEditable(false);

contentArea.setForeground(Color.blue);

txt_message = new JTextField();

txt_max = new JTextField("30");

txt_port = new JTextField("6666");

btn_start = new JButton("启动");

btn_stop = new JButton("停止");

btn_send = new JButton("发送");

btn_stop.setEnabled(false);

listModel = new DefaultListModel();

userList = new JList(listModel);

southPanel = new JPanel(new BorderLayout());

southPanel.setBorder(new TitledBorder("写消息"));

southPanel.add(txt_message, "Center");

southPanel.add(btn_send, "East");

leftPanel = new JScrollPane(userList);

leftPanel.setBorder(new TitledBorder("在线用户"));

rightPanel = new JScrollPane(contentArea);

rightPanel.setBorder(new TitledBorder("群聊消息显示区"));

centerSplit = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, leftPanel,

rightPanel);

centerSplit.setDividerLocation(100);

northPanel = new JPanel();

northPanel.setLayout(new GridLayout(1, 6));

northPanel.add(new JLabel("人数上限"));

northPanel.add(txt_max);

northPanel.add(new JLabel("端口"));

northPanel.add(txt_port);

northPanel.add(btn_start);

northPanel.add(btn_stop);

northPanel.setBorder(new TitledBorder("配置信息"));

frame.setLayout(new BorderLayout());

frame.add(northPanel, "North");

frame.add(centerSplit, "Center");

frame.add(southPanel, "South");

frame.setSize(600, 400);

//frame.setSize(Toolkit.getDefaultToolkit().getScreenSize());//设置全屏

int screen_width = Toolkit.getDefaultToolkit().getScreenSize().width;

int screen_height = Toolkit.getDefaultToolkit().getScreenSize().height;

frame.setLocation((screen_width - frame.getWidth()) / 2,

(screen_height - frame.getHeight()) / 2);

frame.setVisible(true);

// 关闭窗口时事件

frame.addWindowListener(new WindowAdapter()

{

public void windowClosing(WindowEvent e)

{

if (isStart) {

closeServer();// 关闭服务器

}

System.exit(0);// 退出程序

}

});

// 文本框按回车键时事件

txt_message.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

send();

}

});

// 单击发送按钮时事件

btn_send.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent arg0)

{

send();

}

});

// 单击启动服务器按钮时事件

btn_start.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

if (isStart) {

JOptionPane.showMessageDialog(frame, "服务器已处于启动状态，不要重复启动！",

"错误", JOptionPane.ERROR_MESSAGE);

return;

}

int max;

int port;

try {

max = Integer.parseInt(txt_max.getText());

} catch (Exception e1) {

throw new Exception("人数上限为正整数！");

}

if (max <= 0) {

throw new Exception("人数上限为正整数！");

}

try {

port = Integer.parseInt(txt_port.getText());

} catch (Exception e1) {

throw new Exception("端口号为正整数！");

}

if (port <= 0) {

throw new Exception("端口号为正整数！");

}

serverStart(max, port);

contentArea.append("服务器已成功启动!人数上限：" + max + ",端口：" + port

+ "\r\n");

JOptionPane.showMessageDialog(frame, "服务器成功启动!");

btn_start.setEnabled(false);

txt_max.setEnabled(false);

txt_port.setEnabled(false);

btn_stop.setEnabled(true);

} catch (Exception exc) {

JOptionPane.showMessageDialog(frame, exc.getMessage(),

"错误", JOptionPane.ERROR_MESSAGE);

}

});

// 单击停止服务器按钮时事件

btn_stop.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

if (!isStart) {

JOptionPane.showMessageDialog(frame, "服务器还未启动，无需停止！", "错误",

JOptionPane.ERROR_MESSAGE);

return;

}

try {

closeServer();

btn_start.setEnabled(true);

txt_max.setEnabled(true);

txt_port.setEnabled(true);

btn_stop.setEnabled(false);

contentArea.append("服务器成功停止!\r\n");

JOptionPane.showMessageDialog(frame, "服务器成功停止！");

} catch (Exception exc) {

JOptionPane.showMessageDialog(frame, "停止服务器发生异常！", "错误",

JOptionPane.ERROR_MESSAGE);

}

});

}

// 启动服务器

public void serverStart(int max, int port) throws java.net.BindException

{

try {

clients = new ArrayList();

serverSocket = new ServerSocket(port);

serverThread = new ServerThread(serverSocket, max);

serverThread.start();

isStart = true;

} catch (BindException e) {

isStart = false;

throw new BindException("端口号已被占用，请换一个！");

} catch (Exception e1) {

e1.printStackTrace();

isStart = false;

throw new BindException("启动服务器异常！");

}

// 关闭服务器

@SuppressWarnings("deprecation")

public void closeServer() {

try {

if (serverThread != null)

serverThread.stop();// 停止服务器线程

for (int i = clients.size() - 1; i >= 0; i--) {

// 给所有在线用户发送关闭命令

clients.get(i).getWriter().println("CLOSE");

clients.get(i).getWriter().flush();

// 释放资源

clients.get(i).stop();// 停止此条为客户端服务的线程

clients.get(i).reader.close();

clients.get(i).writer.close();

clients.get(i).socket.close();

clients.remove(i);

}

if (serverSocket != null) {

serverSocket.close();// 关闭服务器端连接

}

listModel.removeAllElements();// 清空用户列表

isStart = false;

} catch (IOException e) {

e.printStackTrace();

isStart = true;

}

// 群发服务器消息

public void sendServerMessage(String message) {

for (int i = clients.size() - 1; i >= 0; i--) {

clients.get(i).getWriter().println("服务器：" + message);

clients.get(i).getWriter().flush();

}

// 服务器线程

class ServerThread extends Thread {

private ServerSocket serverSocket;

private int max;// 人数上限

// 服务器线程的构造方法

public ServerThread(ServerSocket serverSocket, int max) {

this.serverSocket = serverSocket;

this.max = max;

}

public void run() {

while (true) {// 不停的等待客户端的链接

try {

Socket socket = serverSocket.accept();

if (clients.size() == max) {// 如果已达人数上限

BufferedReader r = new BufferedReader(

new InputStreamReader(socket.getInputStream()));

PrintWriter w = new PrintWriter(socket

.getOutputStream());

// 接收客户端的基本用户信息

String inf = r.readLine();

StringTokenizer st = new StringTokenizer(inf, "@");

User user = new User(st.nextToken(), st.nextToken());

// 反馈连接成功信息

w.println("MAX@服务器：对不起，" + user.getName()

+ user.getIp() + "，服务器在线人数已达上限，请稍后尝试连接！");

w.flush();

// 释放资源

r.close();

w.close();

socket.close();

continue;

}

ClientThread client = new ClientThread(socket);

client.start();// 开启对此客户端服务的线程

clients.add(client);

listModel.addElement(client.getUser().getName());// 更新在线列表

contentArea.append(client.getUser().getName()

+ client.getUser().getIp() + "上线!\r\n");

} catch (IOException e) {

e.printStackTrace();

}

// 为一个客户端服务的线程

class ClientThread extends Thread

{

private Socket socket;

private BufferedReader reader;

private PrintWriter writer;

private User user;

public BufferedReader getReader()

{

return reader;

}

public PrintWriter getWriter()

{

return writer;

}

public User getUser()

{

return user;

}

// 客户端线程的构造方法

public ClientThread(Socket socket)

{

try {

this.socket = socket;

reader = new BufferedReader(new InputStreamReader(socket

.getInputStream()));

writer = new PrintWriter(socket.getOutputStream());

// 接收客户端的基本用户信息

String inf = reader.readLine();

StringTokenizer st = new StringTokenizer(inf, "@");

user = new User(st.nextToken(), st.nextToken());

// 反馈连接成功信息

writer.println(user.getName() + user.getIp() + "与服务器连接成功!");

writer.flush();

// 反馈当前在线用户信息

if (clients.size() > 0)

{

String temp = "";

for (int i = clients.size() - 1; i >= 0; i--)

{

temp += (clients.get(i).getUser().getName() + "/" + clients

.get(i).getUser().getIp())

+ "@";

}

writer.println("USERLIST@" + clients.size() + "@" + temp);

writer.flush();

}

// 向所有在线用户发送该用户上线命令

for (int i = clients.size() - 1; i >= 0; i--)

{

clients.get(i).getWriter().println(

"ADD@" + user.getName() + user.getIp());

clients.get(i).getWriter().flush();

}

} catch (IOException e)

{

e.printStackTrace();

}

@SuppressWarnings("deprecation")

public void run() {// 不断接收客户端的消息，进行处理。

String message = null;

while (true) {

try {

message = reader.readLine();// 接收客户端消息

if (message.equals("CLOSE"))// 下线命令

{

contentArea.append(this.getUser().getName()

+ this.getUser().getIp() + "下线!\r\n");

// 断开连接释放资源

reader.close();

writer.close();

socket.close();

// 向所有在线用户发送该用户的下线命令

for (int i = clients.size() - 1; i >= 0; i--)

{

clients.get(i).getWriter().println(

"DELETE@" + user.getName());

clients.get(i).getWriter().flush();

}

listModel.removeElement(user.getName());// 更新在线列表

// 删除此条客户端服务线程

for (int i = clients.size() - 1; i >= 0; i--)

{

if (clients.get(i).getUser() == user)

{

ClientThread temp = clients.get(i);

clients.remove(i);// 删除此用户的服务线程

temp.stop();// 停止这条服务线程

return;

}

} else {

dispatcherMessage(message);// 转发消息

}

} catch (IOException e)

{

e.printStackTrace();

}

// 转发消息

public void dispatcherMessage(String message)

{

StringTokenizer stringTokenizer = new StringTokenizer(message, "@");

String source = stringTokenizer.nextToken();

String owner = stringTokenizer.nextToken();

String content = stringTokenizer.nextToken();

message = source + "说：" + content;

contentArea.append(message + "\r\n");

if (owner.equals("ALL")) {// 群发

for (int i = clients.size() - 1; i >= 0; i--) {

clients.get(i).getWriter().println(message);

clients.get(i).getWriter().flush();

}

运行截图

Flask接口签名sign原理与实例代码浅析

209 2023-01-15

java局域网聊天小程序

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