Question

这里我放了一些代码，连接建立，但是每当客户端想要将一些数据发送到服务器数据时，如果客户端在到达服务器后立即解除连接数据如何解决该问题，则无法发送。

我想要的：如果建立连接并且连接不紧密。

public class Server extends AppCompatActivity {

private ServerSocket serverSocket;
Handler UIHandler;
Thread Thread1 = null;
EditText edText;
public static final int SERVERPORT = 3000;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_server);
    getSupportActionBar().setTitle("Server");
    edText = (EditText) findViewById(R.id.editText);
    UIHandler = new Handler();
    this.Thread1 = new Thread(new Thread1());
    this.Thread1.start();

}

class Thread1 implements Runnable {
    InetAddress addr;

    @Override
    public void run() {
        Socket socket = null;
        try {
            addr = InetAddress.getByName(getLocalIpAddress());
            serverSocket = new ServerSocket(SERVERPORT);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
        while (!Thread.currentThread().isInterrupted()) {
            try {
                socket = serverSocket.accept();

                Thread2 commThread = new Thread2(socket);

                new Thread(commThread).start();

            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

private String getLocalIpAddress() throws Exception {
    String resultIpv6 = "";
    String resultIpv4 = "";

    for (Enumeration en = NetworkInterface.getNetworkInterfaces();
         en.hasMoreElements(); ) {

        NetworkInterface intf = (NetworkInterface) en.nextElement();
        for (Enumeration enumIpAddr = intf.getInetAddresses();
             enumIpAddr.hasMoreElements(); ) {

            InetAddress inetAddress = (InetAddress) enumIpAddr.nextElement();
            if (!inetAddress.isLoopbackAddress()) {
                if (inetAddress instanceof Inet4Address) {
                    resultIpv4 = inetAddress.getHostAddress().toString();
                } else if (inetAddress instanceof Inet6Address) {
                    resultIpv6 = inetAddress.getHostAddress().toString();
                }
            }
        }
    }
    return ((resultIpv4.length() > 0) ? resultIpv4 : resultIpv6);
}

private class Thread2 implements Runnable {
    Socket clientSocket;
    BufferedReader input;
    String read;

    public Thread2(Socket clientSocket) {
        this.clientSocket = clientSocket;

        try {
            this.input = new BufferedReader(new InputStreamReader(this.clientSocket.getInputStream()));

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void run() {
        while (!Thread.currentThread().isInterrupted()) {

            try {

                read = this.input.readLine();

                if (read != null) {

                    Server.this.runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            edText.setText(edText.getText().toString() + "Client says: " + read + "\n");
                            Log.i("hhFULL", edText.getText().toString());
                        }
                    });
                } else {

                    Thread1 = new Thread(new Thread1());
                    Thread1.start();
                    return;
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}

Answer 1

这可能是因为您正在使用的客户端最终发送的消息没有\ n或\ r \ n。下面从inputStream读取一行的代码无限地等待换行符： -

read = this.input.readLine();

Answer 2

当客户端发送一些数据时，问题就解决了，它需要（ASCII码）换行。

当客户端未将数据发送到服务器但客户端断开发送到服务器的数据时，连接成功

2 个答案: