Java Socket实现TCP客户端服务端

客户端

notice
发送语句要加换行符来判断语句结束,writer要flush将数据从缓冲区发送到管道

         try {
            Socket socket = new Socket("127.0.0.1", 12340);
            System.out.println("已建立连接");
            OutputStream outputStream = socket.getOutputStream();
            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(outputStream));
            BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
            String send;
            while ((send = reader.readLine()) != null) {
                writer.write(send+'\n');
                writer.flush();   
                System.out.println("已发送消息");
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

服务端

        ServerSocket server = new ServerSocket(12340);
        try {
            Socket socket = server.accept();
            System.out.println("已建立连接" + socket.getRemoteSocketAddress());
            InputStream inputStream = socket.getInputStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
            String str = "";
            while ((str = reader.readLine()) != null) {
                System.out.println(str);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
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