connection

问题 I know how to connect a client to a server, world-wide! check this link if you want to have a quick code to workout: http://cs.lmu.edu/~ray/notes/javanetexamples/ My question is "how can I connect two clients without the server?" The server might be there to listen to clients, but once they connected, I want the server out of the deal and then clients can talk directly. My server is in U.S., client A is in Europe and client B is in Asia. Clients are regular users and they just run the app and

问题 I know how to connect a client to a server, world-wide! check this link if you want to have a quick code to workout: http://cs.lmu.edu/~ray/notes/javanetexamples/ My question is "how can I connect two clients without the server?" The server might be there to listen to clients, but once they connected, I want the server out of the deal and then clients can talk directly. My server is in U.S., client A is in Europe and client B is in Asia. Clients are regular users and they just run the app and

问题 I am trying to get a real-time chat service for cross-platform devices to life. The problem is that System.Net.WebSockets namespace doesn't allow me directly to keep track of an established connection. I could take a sessionID of the current connection but how can I say perform the following action await socket.SendAsync(buffer, WebSocketMessageType.Text, CancellationToken.None) for a specific client? If I could use Microsoft.WebSockets , I would have the possibility to create a

问题 I am trying to get a real-time chat service for cross-platform devices to life. The problem is that System.Net.WebSockets namespace doesn't allow me directly to keep track of an established connection. I could take a sessionID of the current connection but how can I say perform the following action await socket.SendAsync(buffer, WebSocketMessageType.Text, CancellationToken.None) for a specific client? If I could use Microsoft.WebSockets , I would have the possibility to create a

问题 I am trying to get a real-time chat service for cross-platform devices to life. The problem is that System.Net.WebSockets namespace doesn't allow me directly to keep track of an established connection. I could take a sessionID of the current connection but how can I say perform the following action await socket.SendAsync(buffer, WebSocketMessageType.Text, CancellationToken.None) for a specific client? If I could use Microsoft.WebSockets , I would have the possibility to create a

问题 Is it possible to make a ssh connection to a server with java? 回答1: Yes, I used http://sourceforge.net/projects/sshtools/ in a Java application to connect to a UNIX server over SSH, it worked quite well. 回答2: jsch and sshJ are both good clients. I'd personally use sshJ as the code is documented much more thoroughly. jsch has widespread use, including in eclipse and apache ant. I've also had issues with jsch and AES encrypted private keys, which required re-encrypting in 3DES, but that could

问题 What is the PDO equivalent of: mysqli_stat($dbConn); P.S. I use it to (get a message to) make sure I am connected 回答1: I cannot get credit for this answer. Someone posted the answer, but he/she latter deleted the entry. Here's the (saved archived) answer to your question: $status = $conn->getAttribute(PDO::ATTR_CONNECTION_STATUS); 回答2: $pdo->getAttribute(PDO::ATTR_CONNECTION_STATUS) always return "127.0.0.1 via TCP/IP" even if i stop mysqld, to use: if ($pdo->getAttribute(PDO::ATTR_SERVER

问题 In my project for Blackberry 4.5, I create HttpConnection via Connector.open. If I connect over MDS, I can specify ConnectionTimeout in additional params to my URL. How can I specify timeouts if using direct TCP connection or TCP over WiFi? 回答1: According to this KB article, it's not possible to specify a connection timeout value for transports other than MDS. 回答2: In some cases it's possible to use Http over Socket and SocketConnectionEnhanced with READ_TIMEOUT option: public class

问题 I am writing a simple client/server chat program with Indy 10. My server (idtcpserver) sends a command to the client, and the client answers, but when more than one client is connected and the server sends a command, all the clients connected send data to the server. How I can send a command to a specified client and not all? 回答1: The only way a command could be sent to all connected clients is if your code is looping through all of the clients sending the command to each one. So simply

问题 I have two Android devices which I want to connect, using Bluetooth, and transfer data over an RFCOMM channel. I only one one device to receive data, while the other device sends it... Using this code, I am able to connect to the other device and begin listening to an RFCOMM channel: Method m = device.getClass().getMethod("createRfcommSocket", new Class[] { int.class }); socket = (BluetoothSocket) m.invoke(device, 2); socket.connect(); class BasicThread implements Runnable{ public void run()