playframework-2.0

问题 I am building app with Play 2.0. As far as Play form generator won't generate native http "Delete" request method, it should be replaced with either "Get" or "Post". @form(routes.Application.delete(id), 'class -> "topRight") { <input type="submit" value="Delete this computer" class="btn danger"> } According to Play examples "Post" should be used for "delete" purposes. Though using "Get" is much comfortable as form can be replaced with a simple link (especially having a list of those links on

问题 I'M Scala developer,I am getting this error in a Routes file it contains 1008 lines if I add another Line that's throw given below error.. Uncaught error from thread [sbt-web-scheduler-1] shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled for ActorSystem[sbt-web] java.lang.OutOfMemoryError: GC overhead limit exceeded at java.util.jar.Manifest$FastInputStream.<init>(Unknown Source) at java.util.jar.Manifest$FastInputStream.<init>(Unknown Source) at java.util.jar.Manifest.read

问题 I'm running a Play framework application on a VirtualBox VM with the project source code in a directory shared from the host system. The auto-reload functionality of the framework doesn't work. This is (probably) caused by JNotify being unable to detect the changes to the source files, as the filesystem is not local. Both NFS and vboxsf suffer from the same issue. Is there any way around this? Play framework has a built-in fallback mechanism for detecting changes on systems where JNotify is

问题 until now we have been using Play 2.3.9 and we are now migrating to Play 2.4.1 When I use the old version of Play saving an Entity works but with the new verion the Id is not generated. I setup a new project from scratch and tried it to realize it works and the auto generated database has an Id field that auto increments while the old project has a database that uses sequences. I have been trying to configure play/ebean to use sequences but have not been succesfull thus far. I took a look

问题 I'm trying to run unit tests for the Play 2 based application, and we are having some issue regarding the Messages. Apparently, this one seams to not properly initialize or not initialized at all. @Test public void testMessage() throws IOException { running(fakeApplication(), new Runnable() { @Override public void run() { Locale.setDefault(new Locale("en")); String test = Messages.get("test.test"); System.out.println("DUMMY --" + test); } }); } The output of the above code is: "DUMMY -- test

问题 I want to insert multiple values into a table from a SQL query in Anorm. In the following snippet, is there a way to bind a list of usernames as values instead of just one username? SQL("insert into users (username) " + "values ({username})").on( 'username -> username, ).executeUpdate() As an alternative, I can create a concatenated string from my inputs, but that's prone to SQL injection and isn't quite as clean. 回答1: A possible way to insert multiple values at once, using Anorm: var fields:

问题 Using Play 2.3 (Java), I'd like to use a parameter from application.conf as a value for a constraint. Something like: public class Some { @Constraints.MaxLength(Play.application().configuration().getInt("some.text.maxlength", 1000)) public String text; } But of course I can't do this because the annotation parameter must be a constant. What would be the approach, in Java, to bypass this? Should I use a custom validator? Or is there another option? Any help appreciated. 回答1: As you discovered

问题 In my Play! 2.0 application I would like to define the following languages: # The application languages # ~~~~~ application.langs=en-GB,de-DE,nl-NL I also have created 3 files that ends with the corresponding language codes: Messages.en-GB Messages.de-DE Messages.nl-NL When I start the application without any request for a translated key I get the following error message: conf/application.conf: 12: Key 'de-DE' may not be followed by token: ',' (if you intended ',' to be part of the value for

问题 In my Play! 2.0 application I would like to define the following languages: # The application languages # ~~~~~ application.langs=en-GB,de-DE,nl-NL I also have created 3 files that ends with the corresponding language codes: Messages.en-GB Messages.de-DE Messages.nl-NL When I start the application without any request for a translated key I get the following error message: conf/application.conf: 12: Key 'de-DE' may not be followed by token: ',' (if you intended ',' to be part of the value for

问题 I want to write a custom Constraint to use it in my Form for validation. Mappings in Form have a verifying function: verifying (constraints: Constraint[T]*): Mapping[T] . I can obviously use the built in constraints, e.g. "name" -> text.verifying(nonEmpty) . Now I need my own constraint though. The Constraint case class looks like: case class Constraint [-T] (name: Option[String], args: Seq[Any], f: (T) ⇒ ValidationResult) extends Product with Serializable But when I looked at