Question

在询问了很多关于android套接字编程的问题并从stackoverflow的成员那里得到有价值的答案后，我可以做一个很好的工作程序，使用套接字通过wifi连接两个设备。谢谢大家。但我仍然有一些问题..

我已经完成了该计划 **数据可以从客户端发送并在serverSocket **处接收但我仍然没有得到如何从服务器发送可以在客户端接收的数据

服务器套接字代码

private OnClickListener bt_sendListner = new OnClickListener() {

    public void onClick(View v) {
        // TODO Auto-generated method stub

        String msg=et_msg.getText().toString();
        Log.d("Msg", msg);
        Thread threadsendmsg = new Thread(new Threadsendmsg(msg));
        threadsendmsg.start();

    }
};



public class Threadsendmsg implements Runnable{

    String msg;

    public Threadsendmsg(String msg) {
        // TODO Auto-generated constructor stub
      this.msg=msg;


    }

    public void run() {
        // TODO Auto-generated method stub
         try {

             Looper.prepare();
                Log.d("Msg", "Inside the thread");


             //connected = true; 
                while (true) {
                    try {

                        Log.d("Msg", "Msg to be sent");

                        PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(serverSocket.accept().getOutputStream())), true);
                            // where you issue the commands
                            out.println("Client: "+msg);
                            Log.d("Msg", "Msg sent"+out.toString());

                            break;
                    } catch (final Exception e) {
                        handler.post(new Runnable() {

                            public void run() {
                                // TODO Auto-generated method stub
                    tv_chatbox.setText("S: Error= "+ e.getMessage());
                             Log.d("Msg", e.getMessage());   
                            }
                        });
                    }
                }
              //  socket.close();
              //  console.append("\nC: Closed.");
            } catch (final Exception e) {
                handler.post(new Runnable() {

                    public void run() {

                        // TODO Auto-generated method stub
                        tv_chatbox.setText("S: Error= "+ e.getMessage());
                                 Log.d("Msg", e.getMessage());


                        // TODO Auto-generated method stub
                //      console.append("\nC: Error= "+ e.getMessage());

                    }
                });

           //   connected = false;
            }



    }




}



public class ServerThread implements Runnable {

    public void run() { 
        try {
            Looper.prepare();
            if (SERVERIP != null) {
                handler.post(new Runnable() {
                    public void run() {
                        serverStatus.setText("Listening on IP: " + SERVERIP);
                    }
                });
                serverSocket = new ServerSocket(SERVERPORT);
                handler.post(new Runnable() {
                    public void run() {
                        Toast.makeText(getApplicationContext(), serverSocket.getLocalSocketAddress().toString()
                                , Toast.LENGTH_LONG).show();
                                serverStatus.append("\n"+serverSocket.getLocalSocketAddress().toString());

                    }
                });



                Toast.makeText(getApplicationContext(), serverSocket.getLocalSocketAddress().toString()
                , Toast.LENGTH_LONG).show();
                serverStatus.append("\n"+serverSocket.getLocalSocketAddress().toString());
                while (true) {
                    // listen for incoming clients
                    Socket client = serverSocket.accept();
                    handler.post(new Runnable() {
                        public void run() {
                            serverStatus.setText("Connected.");
                        }
                     });

                    try { 
                        BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
                        String line = null;
                        while ((line = in.readLine()) != null) {
                            Log.d("ServerActivity", line);

                          final  String myline=new String(line);
                            handler.post(new Runnable() {
                                public void run() {
                                    tv_chatbox.setText("Client said:="+myline);

                                    // do whatever you want to the front end
                                    // this is where you can be creative
                                }
                            });
                        }
                        break;
                    } catch (Exception e) {
                        handler.post(new Runnable() {
                            public void run() {
                                serverStatus.setText("Oops. Connection interrupted. Please reconnect your phones.");
                            }
                        });
                        e.printStackTrace();
                    }
                }
            } else {
                handler.post(new Runnable() {
                    public void run() {
                        serverStatus.setText("Couldn't detect internet connection.");
                    }
                });
            }
        } catch (final Exception e) {
            handler.post(new Runnable() {
                public void run() {
                    serverStatus.setText("Error"+e.getMessage());

                }
            });
            e.printStackTrace();
        }
    }
}

* ServerSocket类中没有ServerSocket.getOutputStream（）方法。 *我使用过客户端套接字......

Answer 1

客户端和服务器都使用相同的类Socket。但客户端手动创建其套接字实例并连接到服务器。另一方面，服务器在某个端口侦听，当客户端连接时，将创建socket for server并从方法accept（）返回。在您的代码中，您可以使用

client.getOutputStream();

如何将数据从ServerSocket发送到Socket？

1 个答案: