Java 代码Socket clientSocket=newsocket（）；android应用程序崩溃，即使是在单独的线程中

我是Android新手，我研究这个bug已经有一段时间了，但仍然没有弄明白。我试图从智能手机向运行在笔记本电脑上的服务器发送消息。问题在于，由于某种原因，它在创建套接字时崩溃（不是立即而是几秒钟后）。即使我有权限（.INTERNET）并在单独的线程中运行代码，它仍然失败

public class Communcation extends Activity{
private Socket s = null;
short REDIRECTED_SERVERPORT = 5000;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_communcation);

    final EditText msg = (EditText) findViewById(R.id.etMsg);
    Button send = (Button) findViewById(R.id.bSend);
    final TextView convo = (TextView) findViewById(R.id.tvConvo);
    convo.setText("");
    final TextView status = (TextView) findViewById(R.id.tvStatus);
    status.setText("");
    Button connect = (Button) findViewById(R.id.btnConnect);
    final EditText ipaddress = (EditText) findViewById(R.id.address);

    connect.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            status.setText("Estabilishing the connection to " + ipaddress.getText().toString());
            new Thread() {
                public void run() {
                    try {
                        s = new Socket(InetAddress.getByName(ipaddress.getText().toString()), REDIRECTED_SERVERPORT);
                        status.setText("Established connection..");
                    } catch (IOException e) {
                        status.setText("Failed the connection" + e.getMessage());
                    }
                }
            }.start();
        }
    });

    send.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            final String message = msg.getText().toString();
            new Thread() {
                public void run() {
                    PrintWriter outp = null;
                    BufferedReader inp = null;
                    String serverMsg = null;

                    try {
                        outp = new PrintWriter(s.getOutputStream(), true);
                        inp = new BufferedReader(new InputStreamReader(s.getInputStream()));
                    } catch (IOException e) {
                        status.setText("Couldn't initate the buffers ");
                    }

                    outp.write(message);
                }
            }.start();
        }
    });
}

}

在我的服务器端代码中，我等待连接并打印消息，但从测试代码到目前为止，它从未通过接受部分

    while (1)
{   int clientfd;
    struct sockaddr_in client_addr;
    int addrlen=sizeof(client_addr);

    /*---accept a connection (creating a data pipe)---*/
    printf("[SERVER] Waiting for clients\n");
    clientfd = accept(sockfd, (struct sockaddr*)&client_addr, &addrlen);
    printf("%s:%d connected\n", inet_ntoa(client_addr.sin_addr), ntohs(client_addr.sin_port));

    recv(clientfd, buffer, MAXBUF, 0);
    printf("[SERVER] Received from the client: [%s]\n", buffer);

    /*---Close data connection---*/
    close(clientfd);
}

---

事实上，在这种情况下，没有它我也能说出来。在同一线程上设置文本视图的文本。您只能在UI线程中触摸视图。您需要将Runnable发布到处理程序，或者在UI代码上使用RunNouithRead。

发布堆栈跟踪。“代码崩溃”不是问题描述。