socket超简单实例

一个超级简单的socket实现通信

SocketServer

public class SocketServer {

    public static void main(String[] args) {
        makeSocketSerer();
    }

    public static void makeSocketSerer(){

        ServerSocket serverSocket = null;
        try{
            //启动一个服务,指定端口
            serverSocket = new ServerSocket(8888);
            while(true){
                //等待一个接收请求
                Socket socket = serverSocket.accept();
                //lamda表达式
                new Thread(()->{
                    try {
                        //读取客户端带来的数据
                        BufferedReader bufferReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                        //返回给客户端数据
                        PrintWriter printWriter = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));

                        while(true){
                            String getClientDate = bufferReader.readLine();
                            if(getClientDate == null){
                                break;
                            }
                            System.out.println("server端接收到的消息内容： "+getClientDate);

                            printWriter.println("Hello socket Client!!!");
                            printWriter.flush();
                        }
                        printWriter.close();
                        bufferReader.close();
                    } catch (Exception e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                }).start();
            }
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(serverSocket != null){
                try {
                    serverSocket.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }

    }
}

SocketClient

public class SocketClient {

    public static void main(String[] args) {
        makeSocketClient();
    }

    public static void makeSocketClient(){
        try {
            //定一个ip和端口的socket连接
            Socket socket = new Socket("localhost", 8888);

            //接收服务端返回的消息
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));

            //往服务端发送消息
            PrintWriter printWriter = new PrintWriter(socket.getOutputStream(), true);
            printWriter.println("Hello socket Server !!!");

            while(true){
                String getServerData = bufferedReader.readLine();
                if(getServerData == null){
                    break;
                }
                System.out.println("Client接收到的数据： "+getServerData);
            }

            printWriter.close();
            socket.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

原文地址：https://www.cnblogs.com/liqiang0728/p/11109999.html