connection

问题 I have no idea, what am i doing wrong I want to turn off internet connection in emulator (Android 2.2) I'm pressing F8 -> no effect, i still have internet connection I turn airplane mode -> no effect, i still have internet connection. I go to settings for check, airplane mode is on, wifi is off, but there is internet connection on device. What is wrong?! Please, don't suggest to turn off internet on my computer. I know, it's the solution for sure, but not the best one P.s. It is probably the

问题 I have ZKTeco Biometrics device which is connected with a C# windows application using This tutorial (C# ZKTeco Biometric Device Getting Started). It is working fine but after sometime, my application becoming failed to ping the device. As below code suggested, I am trying to ping the device after every 25 seconds. private void TimerCheckPingAndCloseAttendanceForm() { timerCheckPingAndCloseAttendanceForm = new Timer(); timerCheckPingAndCloseAttendanceForm.Tick += new EventHandler

问题 I am getting exception when a method is called from 3 or 4 threads. This method get a DataBase connection inside method and populate some values from DB and then connection (connection, resultset and prepareStatement) getting closed properly inside method only. Still getting exception. Thread_1 - abc() method called. connection opened and closed inside method. Thread_2 - abc() method called. connection opened and closed inside method. Thread_3 - abc() method called. connection opened and

问题 I am trying to get data using gtrendsR package. But I am stuck at the connection. library('gtrendsR') session <- gconnect("username@gmail.com", "mypass") I know google recognize my email address and my password, but I think the problem is with R because I am getting the following error: Error in curl::curl_fetch_memory(url, handle = handle) : Number of redirects hit maximum amount However, I am not sure. Has anyone encountered this problem before and knows how to solve it? 回答1: library(

问题 Hey I'm working on a python project using sockets. Basically I want to loop a connection to a host for user input. Here is what I'm trying: while True: sock.connect((host, port)) inputstring = " > " userInput = raw_input(inputstring) sock.send(userInput + '\r\n\r\n') recvdata = sock.recv(socksize) print(recvdata) But when I loop the socket and try connecting to localhost on port 80 I get an error saying the transport endpoint is still connected or something like that. How can I eliminate that

问题 I'm currently in the process of developing an app which has some very demanding needs. The Project An application which can communicate with a server is needed. Small messages has to be send to the app which could display a notification or start an activity. The Demands Client needs to be sure that the phone is 'connected' at all times. The client expects that the app can tell when it's no longer connected (or able to connect) to the server it tells the user. Client needs to be able to send a

问题 So, I went to create an EDMX file today, and while going through the connection options the wizard asked if I wanted to "keep sensitive data out of the .config file and manually set it in code" this makes perfect sense to me (use my own encrypted "appsetting" for connection credentials). Now, I'm sitting here trying to find out how to specify the credentials to my Entity Framework classes. The only thing I can find is the db.Connection.ConnectionString property, but I'm not really sure what

问题 I am working on crawler and I have to extract data from 200-300 links on Google Scholar. I have working parser which is getting data from pages (on every pages are 1-10 people profiles as result of my query. I'm extracting proper links, go to another page and do it again). During run of my program I spotted above error: org.jsoup.HttpStatusException: HTTP error fetching URL. Status=503, URL=https://ipv4.google.com/sorry/IndexRedirect?continue=https://scholar.google.pl/citations%3Fmauthors

问题 I am learning Stanford CS193p course with Xcode 4.3.3. I think the screenshot below is pretty much self-explaining. But i will describe the problem with words anyway. I control-drag a UILabel from storyboard to corresponding implementation file to make the IBOutlet @property. Then I see two connections displayed when clicking the filled circle in the left side of the editor where shows line numbers. I don't know how to delete it. Moreover, I see only ONE connection in storyboard's connections

问题 Specifically, I have a DB class that opens and closes multiple MySQL connections every time I call the Query function in the class. Should I open a connection once? or is it ok to open and close connections like this? 回答1: My simple-minded (ISAM, no transactions) C-language app runs for eight hours a day, updating multiple tables in one database over one single MySQL connection that stays open the whole time. It works just fine. Anytime there's any kind of MySQL error (not only server gone