Socket 客户端服务端心跳监测

小鱼儿 2022-05-04 05:58 279阅读 0赞

public class ClientHeart extends Thread {
        @Override
        public void run() {
            try {
                while (true) {
                    ClientSender.getInstance().send();
                    synchronized (ClientHeart.class) {
    // this.wait(5000);
                        Thread.sleep(2000);
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        /**
         * 程序的入口main方法
         *
         * @param args
         */
        public static void main(String[] args) {
            ClientHeart client = new ClientHeart();
            client.start();
        }
    }

import java.io.ObjectOutputStream;
    import java.net.InetAddress;
    import java.net.Socket;
    public class ClientSender {
        private ClientSender() {
        }
        Socket sender = null;
        private static ClientSender instance;
        public static ClientSender getInstance() {
            if (instance == null) {
                synchronized (ClientHeart.class) {
                    instance = new ClientSender();
                }
            }
            return instance;
        }
        public void send() {
            try {
                sender = new Socket(InetAddress.getLocalHost(), 9090);
                while (true) {
                    ObjectOutputStream out = new ObjectOutputStream(sender.getOutputStream());
                    Entity obj = new Entity();
                    obj.setName("xiaoming");
                    obj.setSex("男");
                    out.writeObject(obj);
                    out.flush();
                    System.out.println("已发送...");
                    Thread.sleep(5000);
                }
            } catch (Exception e) {
            }
        }
    }

import java.io.Serializable;
    public class Entity implements Serializable {
        private static final long serialVersionUID = 1L;
        private String name;
        private String sex;
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public String getSex() {
            return sex;
        }
        public void setSex(String sex) {
            this.sex = sex;
        }
        @Override
        public String toString() {
            return "Entity [name=" + name + ", sex=" + sex + "]";
        }
    }

import java.io.ObjectInput;
    import java.io.ObjectInputStream;
    import java.net.ServerSocket;
    import java.net.Socket;
    public class ServerHeart extends Thread {
        private ServerSocket server = null;
        Object obj = new Object();
        @Override
        public void run() {
            try {
                server = new ServerSocket(9090);
                while (true) {
                    Socket client = server.accept();
                    synchronized (obj) {
                        new Thread(new Client(client)).start();
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        /**
         * 客户端线程
         *
         * @author USER
         *
         */
        class Client implements Runnable {
            Socket client;
            public Client(Socket client) {
                this.client = client;
            }
            @Override
            public void run() {
                try {
                    while (true) {
                        ObjectInput in = new ObjectInputStream(client.getInputStream());
                        Entity entity = (Entity) in.readObject();
                        System.out.println(entity);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        /**
         * 程序的入口main方法
         *
         * @param args
         */
        public static void main(String[] args) {
            System.out.println("开始检测客户端是否在线...");
            new ServerHeart().start();
        }
    }