Rhyme/ java TCP网络编程 聊天室（群聊与私聊）TCP、多线程、IO流编程完整代码实现

TCP网络编程 聊天室（群聊与私聊）完整代码实现

实现工具：Socket、多线程、IO流

实现效果图

Client.java

package com.maple.tcp;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.net.Socket;/** * Client based on tcp protocol *  * @author RhymeChiang * @date 2017/10/22 */public class Client {    public static void main(String[] args) {        try {            System.out.println("    Please input your name!");            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));            String name = br.readLine();            Socket client = new Socket("localhost", 8888);            new Thread(new Send(client, name)).start();            new Thread(new Receive(client)).start();        } catch (IOException e) {            e.printStackTrace();        }    }}

Server.java

package com.maple.tcp;import static org.hamcrest.CoreMatchers.instanceOf;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.net.ServerSocket;import java.net.Socket;import java.util.ArrayList;import java.util.List;/** * tcp server *  * @author RhymeChiang * @date 2017/10/22 */public class Server {    /**     * server     */    private ServerSocket server = null;    /**     * list of client     */    private List<AClient> list = null;    public Server() throws IOException {        server = new ServerSocket(8888);        list = new ArrayList<>();    }    public void start() {        while (true) {            AClient client = new AClient();            list.add(client);            new Thread(client).start();        }    }    /**     * each Client has a dependant Thread     *      * @author RhymeChiang     * @date 2017/10/22     */    private class AClient implements Runnable {        private DataInputStream dis = null;        private DataOutputStream dos = null;        private Socket client = null;        private boolean isRunning = true;        private String clientName = null;        public AClient() {            try {                client = server.accept();                dis = new DataInputStream(client.getInputStream());                dos = new DataOutputStream(client.getOutputStream());                clientName = dis.readUTF();                send("  Welcome!" + clientName);                officialSendOthers("    Hi,everyone!" + clientName + " joined us");            } catch (IOException e) {                isRunning = false;                IOUtil.closeAll(dos, dis);                list.remove(this);            }        }        /**         * receive message from client         *          * @return         * @throws IOException         */        public String receive() {            try {                return dis.readUTF();            } catch (IOException e) {                isRunning = false;                IOUtil.closeAll(dos, dis);                list.remove(this);            }            return "";        }        public void send(String msg) {            try {                dos.writeUTF(msg);                dos.flush();            } catch (IOException e) {                isRunning = false;                IOUtil.closeAll(dos, dis);                list.remove(this);            }        }        /**         * send message to others         *          * @param msg         */        public void sendOthers(String msg) {            if(list.size()==0) {                send("  "+"sorry,there is nobody in this chat room now");                return;            }            for (AClient a : list) {                if (a == this) {                    continue;                }                a.send("    "+clientName + " said to everyone:" + msg);            }        }        public void officialSendOthers(String msg) {            for (AClient a : list) {                a.send(msg);            }        }        public String getClientName() {            return clientName;        }        /**         * if the msg is a private conversation         *          * @param msg         * @return         */        public boolean privateSession(String msg) {            String reg = "@[a-zA-Z0-9_-]{3,16}:";            String msgHead = msg.substring(0,msg.indexOf(":")+1);            if (msgHead.matches(reg)) {                // target private conversation                String name = msg.substring(msg.indexOf("@") + 1, msg.indexOf(":"));                // the content of private conversation                String sendMsg = msg.substring(msg.indexOf(":") + 1);                for (AClient a : list) {                    if (a.getClientName().equals(name)) {                        // send conversation                        a.send("    "+this.getClientName() + " said to you: " + sendMsg);                        return true;                    }                }                send("  "+name + " is not online");                return false;            }            return false;        }        @Override        public void run() {            while (isRunning) {                String msg = receive();                System.out.println(msg);                // private conversation                if (!privateSession(msg)) {                    sendOthers(msg);                }            }        }    }    public static void main(String[] args) {        try {            new Server().start();        } catch (IOException e) {            e.printStackTrace();        }        /*         * String msg = "@Rhyme:nihao";         * System.out.println(msg.substring(msg.indexOf("@") + 1, msg.indexOf(":")));         */    }}

Send.java

package com.maple.tcp;import java.io.BufferedReader;import java.io.DataOutputStream;import java.io.IOException;import java.io.InputStreamReader;import java.net.Socket;/** * thread of send *  * @author RhymeChiang * @date 2017/10/22 */public class Send implements Runnable {    /**     * outputStream     */    private DataOutputStream dos = null;    /**     * console inputStream     */    private BufferedReader console = null;    /**     * the mark of is thread running well     */    private boolean isRunning = true;    /**     * the name of current client     */    private String clientName;    public Send(Socket client,String name) {        super();        try {            this.clientName = name;            dos = new DataOutputStream(client.getOutputStream());            console = new BufferedReader(new InputStreamReader(System.in));            //send clintName to server            dos.writeUTF(clientName);        } catch (IOException e) {            // when it comes to exception close current thread            isRunning = false;            // close input/output streams            IOUtil.closeAll(dos);        }    }    /**     * get message from console     *      * @return the message is going to be send     * @throws IOException     */    public String getMsgFormConsole() {        try {            return console.readLine();        } catch (IOException e) {            //e.printStackTrace();            IOUtil.closeAll(console);        }        return "";    }    /**     * send message     *      * @param msg     *            message going to be send     */    private void send(String msg) {        try {            //make sure the msg is not null and not ""             if(null!=msg&&!msg.equals("")) {                dos.writeUTF(msg);                dos.flush();            }        } catch (IOException e) {            isRunning = false;            IOUtil.closeAll(dos);        }    }    @Override    public void run() {        while (isRunning) {            //send message from console            send(getMsgFormConsole());        }    }}

Receive.java

package com.maple.tcp;import java.io.DataInputStream;import java.io.IOException;import java.net.Socket;/** * Receiver of tcp client *  * @author RhymeChiang * @date 2017/10/22 */public class Receive implements Runnable {    /**     * input stream from the server     */    private DataInputStream dis = null;    /**     * input stream from the server     */    private boolean isRunning = true;    public Receive(Socket client) {        super();        try {            dis = new DataInputStream(client.getInputStream());        } catch (IOException e) {            isRunning = false;            IOUtil.closeAll(dis);        }    }    /**     * receive message from server     */    public void receive() {        try {            String str = dis.readUTF();            System.out.println(str);        } catch (IOException e) {            isRunning = false;            IOUtil.closeAll(dis);        }    }    @Override    public void run() {        while (isRunning) {            receive();        }    }}

IOUtil.java

package com.maple.tcp;import java.io.Closeable;import java.io.IOException;/** * util of io close * @author RhymeChiang * @date 2017/10/22 */public class IOUtil {    public static void closeAll(Closeable...io) {        for(Closeable i : io) {            if(null!=i) {                try {                    i.close();                } catch (IOException e) {                    e.printStackTrace();                }            }        }    }}