runtime

问题 I need an optimal way to change Database in run-time, whether from hibernate or from JNDI or another. I need to change the database when a user clicks on a specific button (Change dependencies on events). 回答1: If you are running Grails 1.3.x you can to use the Burt Beckwith's Datasources plugin, in Grails 2.x that feature has been added to core. Then you can to use a parameter to pass database connection name def database = params.database if(!database) database = "default" and to use Groovy

问题 I have classical complaint - rebuilding and reloading the web app takes too long. I want to compile the classes (preferrably from the IDE) or change a static file and let the server check what changed and act approprietly (reload the class/file). What are my options for Wicket + JDK 1.6 ? I'd prefer Jetty, but Tomcat, JBoss AS or others are good, too. I am not using the ReloadingWicketFilter since I use mvn jetty:run-exploded because it's the simplest way to run my app with desired

问题 I am trying to retrieve a numerical value from datagridview. The data type for both the value in the table, and the variable (weeklyTotal), are integer. Also I am trying to cast it into integer. I looked through the whole website for similar problems, and yet none of the solutions were helpful. The error message that I am getting is “when casting form a number, the value must be less than infinity”. I went back to my table more than one time to make sure that I don’t have invalid value. it's

问题 I keep getting the attached runtime error in QnA maker. I could access the Knowledge base fine after creating it but after about an hour i started getting the below error. Error Example I have tried everything including trying to delete the knowledge base, create a new one etc and it doesn't delete or create just throws the same error. Please can someone give me some advice or help. Microsoft recommended I submit a question here. Thanks Chris 回答1: I faced the smae issue, and to solve it I

问题 Please note , not interested in using the Google-Eclipse plugin; I want to manage all dependencies manually. Just downloaded the GWT 2.5.1 SDK and am looking at all the JARs it ships with: gwt-api-checker.jar requestfactory-apt-src.jar gwt-codeserver.jar requestfactory-client.jar gwt-dev.jar requestfactory-client-src.jar gwt-elemental.jar requestfactory-client+src.jar gwt-servlet-deps.jar requestfactory-server.jar gwt-servlet.jar requestfactory-server-src.jar gwt-soyc-vis.jar requestfactory

问题 Please note , not interested in using the Google-Eclipse plugin; I want to manage all dependencies manually. Just downloaded the GWT 2.5.1 SDK and am looking at all the JARs it ships with: gwt-api-checker.jar requestfactory-apt-src.jar gwt-codeserver.jar requestfactory-client.jar gwt-dev.jar requestfactory-client-src.jar gwt-elemental.jar requestfactory-client+src.jar gwt-servlet-deps.jar requestfactory-server.jar gwt-servlet.jar requestfactory-server-src.jar gwt-soyc-vis.jar requestfactory

问题 there exists a nice database called LiteDB. What I find inconvenient is an absence of attributes for specifying the relation type (value/reference) between entities, though LiteDB provides fluent interface for hardcoding it (details: https://github.com/mbdavid/LiteDB/wiki/DbRef). I am lazy guy and don't want always update this hardcoded relations to follow the changes in my data model. So I decided to realize the runtime discovery of the data model entities with the properties attributed by

问题 i have a scrollview and want to add multiple webviews dynamically into it. need to get height of webview. i have used below code. but it does't work always.some times showing wrong height. func webViewDidFinishLoad(aWebView: UIWebView) { let screenSize = UIScreen.mainScreen().bounds let screenWidth = screenSize.width var frame = aWebView.frame frame.size.height = 1 frame.size.width = screenSize.width aWebView.frame = frame let fittingSize = aWebView.sizeThatFits(CGSizeZero) frame.size =

问题 I'm trying to execute applications from java servlet . When I run it on eclipse integrated tomcat its working fine. When I'm trying to do the same on os integrated tomcat server by deploying .war file into webapps, its not working. It doesn't encountering any error as well. Even I checked the logs, there is no error nothing but usual tomcat access log. Is there any other ways that I can execute applications like firefox, chrome, gedit etc. Note: Basic bash commands like ls, chmod, mkdir were

问题 Error log after installing and running the live wallpaper Basically, I get the error on live wallpaper app. It crashes when I'm setting the wallpaper. What's the problem? com.snailreactors.thestorm.SBLiveWallpaper: java.lang.ClassNotFoundException: com.snailreactors.thestorm.SBLiveWallpaper at android.app.ActivityThread.handleCreateService(ActivityThread.java:2347) at android.app.ActivityThread.access$1600(ActivityThread.java:130) at android.app.ActivityThread$H.handleMessage(ActivityThread