标签：编程 JAVA output sock writer 样例 System input new

这篇文章主要用来总结Java在网络编程中的知识点

下面是一个Java客户端与服务端通信的样例程序

//Server
public class Server {
    public static void main(String[] args) throws IOException {
        ServerSocket ss = new ServerSocket(6666);
        System.out.println("Server start listening...");
        for (; ; ) {
            Socket sock = ss.accept();
            System.out.println("Receviced package from " + sock.getRemoteSocketAddress());
            Thread t = new Handler(sock);
            t.start();
        }
    }
}

class Handler extends Thread {
    Socket sock;

    public Handler(Socket sock) {
        this.sock = sock;
    }

    @Override
    public void run() {
        try (InputStream input = this.sock.getInputStream()) {
            try (OutputStream output = this.sock.getOutputStream()) {
                handle(input, output);
            }
        } catch (Exception e) {
            try {
                this.sock.close();
            } catch (IOException ioe) {
            }
            System.out.println("Client disconnected.");
        }
    }

    private void handle(InputStream input, OutputStream output) throws IOException {
        var writer = new BufferedWriter(new OutputStreamWriter(output, StandardCharsets.UTF_8));
        var reader = new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8));
        writer.write("hello\n");
        writer.flush();
        for (; ; ) {
            String s = reader.readLine();
            if (s.equals("bye")) {
                writer.write("bye\n");
                writer.flush();
                break;
            }
            writer.write("ok: " + s + "\n");
            writer.flush();
        }
    }
}

//client
public class client {
    public static void main(String[] args) throws IOException {
        Socket sock = new Socket("localhost", 6666);
        try (InputStream input = sock.getInputStream()){
            try(OutputStream output = sock.getOutputStream()){
                handle(input, output);
            }
        }
    }
    private static void handle(InputStream input, OutputStream output) throws IOException{
        var writer = new BufferedWriter(new OutputStreamWriter(output, StandardCharsets.UTF_8));
        var reader = new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8));
        Scanner scanner = new Scanner(System.in);
        System.out.println("[server]: "+ reader.readLine());
        for(;;){
            System.out.print(">>>");
            String s = scanner.nextLine();
            writer.write(s);
            writer.newLine();
            writer.flush();
            String resp = reader.readLine();
            System.out.println("<<<" + resp);
            if(resp.equals("bye"))  break;
        }
    }
}

实现功能为服务端与客户端相互通信，收到bye信号后断开连接，如图所示

标签：编程,JAVA,output,sock,writer,样例,System,input,new
来源： https://www.cnblogs.com/cjjcn/p/16141841.html

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。