Question

我正在尝试在Android上实现套接字服务器并在Web上实现Socket客户端。我正在关注此Android Socket Server的链接。

以下是代码：

private class SocketServerThread extends Thread {

static final int SocketServerPORT = 6190;
int count = 0;

@Override
public void run() {
    Socket socket = null;
    DataInputStream dataInputStream = null;
    DataOutputStream dataOutputStream = null;

    try {
        serverSocket = new ServerSocket(SocketServerPORT);
        MainActivity.this.runOnUiThread(new Runnable() {

            @Override
            public void run() {
                info.setText("I'm waiting here: "
                        + serverSocket.getLocalPort());
            }
        });

        while (true) {
            socket = serverSocket.accept();
            dataInputStream = new DataInputStream(
                    socket.getInputStream());
            dataOutputStream = new DataOutputStream(
                    socket.getOutputStream());

            String messageFromClient = "";

            messageFromClient = dataInputStream.readUTF();

            count++;
            message += "#" + count + " from " + socket.getInetAddress()
                    + ":" + socket.getPort() + "\n"
                    + "Msg from client: " + messageFromClient + "\n";

            MainActivity.this.runOnUiThread(new Runnable() {

                @Override
                public void run() {
                    msg.setText(message);
                }
            });

            String msgReply = "Hello from Android, you are #" + count;
            dataOutputStream.writeUTF(msgReply);

        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        final String errMsg = e.toString();
        MainActivity.this.runOnUiThread(new Runnable() {

            @Override
            public void run() {
                msg.setText(errMsg);
            }
        });

    } finally {
        if (socket != null) {
            try {
                socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        if (dataInputStream != null) {
            try {
                dataInputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        if (dataOutputStream != null) {
            try {
                dataOutputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

我正在获取设备的本地IP地址（通常为192.168.XX.XX）。我创建了一个html文件，它使用Web Sockets连接到android Socket服务器。

HTML代码

<script type="text/javascript">
    function WebSocketTest()
    {
        if ("WebSocket" in window)
        {
            alert("WebSocket is supported by your Browser!");

            // Let us open a web socket
            var ws = new WebSocket("ws://192.168.1.4:6190");

            ws.onopen = function()
            {
                ws.send("Message to send");
                alert("Message is sent...");
            };

            ws.onmessage = function (evt)
            {
                var received_msg = evt.data;
                alert("Message is received...");
            };

            ws.onclose = function()
            {
                // websocket is closed.
                alert("Connection is closed...");
            };
        }

        else
        {
            // The browser doesn't support WebSocket
            alert("WebSocket NOT supported by your Browser!");
        }
    }
</script>

我正在做的事情很少：

在真正的Android设备上运行服务器（无模拟器）
Android Server和HTML Client都在同一网络下。
Android设备IP是正确的。

我不确定的事情： - HTML代码

我之前没有使用过WebSockets，因此不知道HTML客户端是否存在问题。

修改

如果我在Android设备上关闭服务器，那就是错误

WebSocket connection to 'ws://192.168.1.4:6190/' failed: Connection closed before receiving a handshake response

否则我会在一段时间后收到Timeout错误。

Android作为套接字服务器，Web作为同一网络中的套接字客户端

修改

0 个答案: