connection

问题 I am currently trying to communicate with an ELM327 OBDII bluetooth dongle via the BluetoothChat Sample Application. I am able to connect as I have changed the UUID, however I am only able to recieve the startup commands and the prompt ">" to send a command, whenever I try to send a command I get the following CAN OBDII:ELM327 v1.2a> Me:ATRV CAN OBDII:ATRV CAN OBDII:> CAN OBDII:? Now I read on here to append "\r" to the commands, however when I do this I get the exact same response. I am

问题 I am developing an application which should connect 2 Android devices through Bluetooth automatically. Let's say they are already paired. Is it possible to achieve that? 回答1: Of course it is possible. I'll make a short tutorial out of the documentation: Start with the BluetoothAdapter - it is your Bluetooth manager. BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); If bluetoothAdapter is null, it means that this Android device does not support Bluetooth (It has no

问题 I am trying to update the Airflow connections using python. I have created a python function that takes an authentication token from API and updates the extra field of connection in Airflow. I am getting token in json format like below: { "token" : token_value } Below is the part of python code that I am using def set_token(): # Get token from API & update the Airflow Variables Variable.set("token", str(auth_token)) new_token = Variables.get("token") get_conn = Connection(conn_id="test_conn")

问题 I am aware that an early draft of HTML5 specified peer-to-peer connections using the PeerToPeerConnection() constructor. However, this was replaced by WebSocket which, to my knowledge, does not support peer-to-peer connections. In addition, the device element specifies a peer-to-peer connection interface, however no web browsers have implemented it yet. 回答1: Opera Unite allows Peer to peer (basically gives your browser web server, file system and nat-traversal capabilities), but this is Opera

问题 I am aware that an early draft of HTML5 specified peer-to-peer connections using the PeerToPeerConnection() constructor. However, this was replaced by WebSocket which, to my knowledge, does not support peer-to-peer connections. In addition, the device element specifies a peer-to-peer connection interface, however no web browsers have implemented it yet. 回答1: Opera Unite allows Peer to peer (basically gives your browser web server, file system and nat-traversal capabilities), but this is Opera

问题 I am aware that an early draft of HTML5 specified peer-to-peer connections using the PeerToPeerConnection() constructor. However, this was replaced by WebSocket which, to my knowledge, does not support peer-to-peer connections. In addition, the device element specifies a peer-to-peer connection interface, however no web browsers have implemented it yet. 回答1: Opera Unite allows Peer to peer (basically gives your browser web server, file system and nat-traversal capabilities), but this is Opera

问题 I have a server to which multiple clients are connected. I want to identify what is happening with each client. For this, I need some kind of identification for a particular client. TcpClient tcpClient = (TcpClient)client; logger.DebugFormat("Connection obtained with a client {0} {1} {2} ", client.Connected, client.Client.LocalEndPoint,client.Client.RemoteEndPoint); But I need a simple integer number which can be assigned to a client for its identification. And that number increments for

问题 How To modify Eclipselink JPA 2.0 connection retry behavior . Eclipselink automatically tries to reconnect it self to database whenever it detects a connection failure this causes swing ui to freeze without any responses until it connects to database . Are there any solution to modify this behavior Ie is it possible to throw exception when connection fails without retrying Please help on this issue I am facing with huge problem. I went throe eclipselink source code and google but I could not

问题 As you might have guessed from the title am I trying to do this: #region check new nations private void checknewnations() { addtolog("server","Checking for new nations"); string sql = "SELECT * FROM " + variables.tbl_nations + " WHERE nations_new=0"; MySqlCommand cmd = new MySqlCommand(sql, connection); MySqlDataReader reader = cmd.ExecuteReader(); while (reader.Read()) { addtolog("mysql",reader["nations_name"].ToString()); int nation_ID = int.Parse(reader["nations_ID"].ToString()); string

问题 Using non-blocking I/O, the code for connecting to a remote address looks something like: SocketChannel channel = SelectorProvider.provider().openSocketChannel(); channel.configureBlocking(false); channel.connect(address); The connection process will then have to be finished by invoking finishConnect() on the channel when some selector says the corresponding key isConnectable() . Is there a way to specify the connection timeout when using this idiom? 回答1: Interesting question. I'm not sure