JAVA SOCKET接口 （代碼）

 基於TCP的socket實現

SocketClient.java

public class SocketClient {
    
    public static void main(String[] args) throws InterruptedException {
        try {
            // 和服務器創建連接
            Socket socket = new Socket("localhost",8088);
            
            // 要發送給服務器的信息
            OutputStream os = socket.getOutputStream();
            PrintWriter pw = new PrintWriter(os);
            pw.write("客戶端發送信息");
            pw.flush();
            
            socket.shutdownOutput();
            
            // 從服務器接收的信息
            InputStream is = socket.getInputStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(is));
            String info = null;
            while((info = br.readLine())!=null){
                System.out.println("我是客戶端，服務器返回信息："+info);
            }
            
            br.close();
            is.close();
            os.close();
            pw.close();
            socket.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
 
}

原文鏈接：https://blog.csdn.net/u014209205/article/details/80461122

SocketServer.java

public class SocketServer {
    
    public static void main(String[] args) {
        try {
            // 創建服務端socket
            ServerSocket serverSocket = new ServerSocket(8088);
            
            // 創建客戶端socket
            Socket socket = new Socket();    
            
            //循環監聽等待客戶端的連接
            while(true){
                // 監聽客戶端
                socket = serverSocket.accept();
                
                ServerThread thread = new ServerThread(socket);
                thread.start();
                
                InetAddress address=socket.getInetAddress();
                System.out.println("當前客戶端的IP："+address.getHostAddress());
            }
        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }
    }
 }


原文鏈接：https://blog.csdn.net/u014209205/article/details/80461122

ServerThread.java

public class ServerThread extends Thread{
    
    private Socket socket = null;
    
    public ServerThread(Socket socket) {
        this.socket = socket;
    }
 
    @Override
    public void run() {
        InputStream is=null;
        InputStreamReader isr=null;
        BufferedReader br=null;
        OutputStream os=null;
        PrintWriter pw=null;
        try {
            is = socket.getInputStream();
            isr = new InputStreamReader(is);
            br = new BufferedReader(isr);
            
            String info = null;
            
            while((info=br.readLine())!=null){
                System.out.println("我是服務器，客戶端說："+info);
            }
            socket.shutdownInput();
            
            os = socket.getOutputStream();
            pw = new PrintWriter(os);
            pw.write("服務器歡迎你");
            
            pw.flush();
        } catch (Exception e) {
            // TODO: handle exception
        } finally{
            //關閉資源
            try {
                if(pw!=null)
                    pw.close();
                if(os!=null)
                    os.close();
                if(br!=null)
                    br.close();
                if(isr!=null)
                    isr.close();
                if(is!=null)
                    is.close();
                if(socket!=null)
                    socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}
————————————————
原文鏈接：https://blog.csdn.net/u014209205/article/details/80461122

 基於UDP的socket實現

SocketClient.java

public class SocketClient {
	
	public static void main(String[] args) {
		try {
            // 要發送的消息
            String sendMsg = "客戶端發送的消息";
            
            // 獲取服務器的地址
            InetAddress addr = InetAddress.getByName("localhost");
            
            // 創建packet包對象，封裝要發送的包數據和服務器地址和端口號
            DatagramPacket packet = new DatagramPacket(sendMsg.getBytes(),
            		sendMsg.getBytes().length, addr, 8088); 
            
            // 創建Socket對象
            DatagramSocket socket = new DatagramSocket();
            
            // 發送消息到服務器
            socket.send(packet);
 
            // 關閉socket
            socket.close();
            
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
	}
}
————————————————
原文鏈接：https://blog.csdn.net/u014209205/article/details/80461122

　　

SocketServer.java

public class SocketServer {
    
    public static void main(String[] args) {
        try {
             // 要接收的報文
            byte[] bytes = new byte[1024];
            DatagramPacket packet = new DatagramPacket(bytes, bytes.length);
            
            // 創建socket並指定端口
            DatagramSocket socket = new DatagramSocket(8088);
            
            // 接收socket客戶端發送的數據。如果未收到會一致阻塞
            socket.receive(packet);
            String receiveMsg = new String(packet.getData(),0,packet.getLength());
            System.out.println(packet.getLength());
            System.out.println(receiveMsg);
            
            // 關閉socket
            socket.close();
        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }
    }
 
}
————————————————
原文鏈接：https://blog.csdn.net/u014209205/article/details/80461122