playframework

问题 Here I am using neo4j rest api, in first step I want to collect information like how many relationships are there between two given nodes. Sample : MATCH (n:Node {id: {parameter1}})-[r:someType]-(m:Node {id: {parameter2}}) RETURN COUNT(r) Then I would like to collect all the values assigned to the edges so I can calculate further calculations. I need all the different types of relationships and their properties between two given nodes. If it is possible I would like to do it in single cypher.

问题 I have found several questions about this, but none with a complete explaintation of the problem, and how to debug it - the answers are all anecdotal. The problem is that in a Play 1.2.4 JPA test, I'm getting this exception when I save() a model: org.hibernate.HibernateException: Found two representations of same collection: models.Position.projects I would like to know: Is there a documentation of this problem in general, unrelated to Play? The issue is in hibernate, yet a lot of the Google

问题 I have a project for school and I have to use Java. Recently I found play framework and I want to try to use it. It's easy enough for a quick start, but I ran into a problem with session. Being stateless by its nature, play sends entire session to user in cookie and receives it on next request, so it allows only limited amount of data in session. What I want to do is to fetch User object from DB on user login, and keep it in session, so I could access it from templates and so on (I have some

问题 I am trying to run play framework 2.2.1 application on HTTPs in dev mode. I use the following command: Development/Play/ssltest$ JAVA_OPTS=-Dhttps.port=9443 play run I got the following, which seems to be OK --- (Running the application from SBT, auto-reloading is enabled) --- [info] play - Listening for HTTP on /0:0:0:0:0:0:0:0:9000 [info] play - Listening for HTTPS on port /0:0:0:0:0:0:0:0:9443 (Server started, use Ctrl+D to stop and go back to the console...) However, when I try to connect

问题 I am trying to run play framework 2.2.1 application on HTTPs in dev mode. I use the following command: Development/Play/ssltest$ JAVA_OPTS=-Dhttps.port=9443 play run I got the following, which seems to be OK --- (Running the application from SBT, auto-reloading is enabled) --- [info] play - Listening for HTTP on /0:0:0:0:0:0:0:0:9000 [info] play - Listening for HTTPS on port /0:0:0:0:0:0:0:0:9443 (Server started, use Ctrl+D to stop and go back to the console...) However, when I try to connect

问题 I am using Play 2.5.10, Play-slick 2.0.2, and my activator-generated project comes with scalatest and code like this: class TestSpec extends PlaySpec with OneAppPerSuite {...} I managed to test routes/Actions; now I would test DAO methods on a lower level. I searched the web and SO for a solution, and could not find any that is still up-to-date. A DAO signature is like this: class TestDAO @Inject()(protected val dbConfigProvider: DatabaseConfigProvider) extends HasDatabaseConfigProvider

问题 I am using Play 2.5.10, Play-slick 2.0.2, and my activator-generated project comes with scalatest and code like this: class TestSpec extends PlaySpec with OneAppPerSuite {...} I managed to test routes/Actions; now I would test DAO methods on a lower level. I searched the web and SO for a solution, and could not find any that is still up-to-date. A DAO signature is like this: class TestDAO @Inject()(protected val dbConfigProvider: DatabaseConfigProvider) extends HasDatabaseConfigProvider

问题 I am trying to mock a Scala singleton object. In particular, I need to mock the object play.api.libs.ws.WS used inside a service component (class under test). Using Mockito this is not possible, the test execution fails in the following way: [error] MockitoException: : [error] Cannot mock/spy class play.api.libs.ws.WS$ [error] Mockito cannot mock/spy following: [error] - final classes [error] - anonymous classes [error] - primitive types (GeolocationSpec.scala:18) Reading here, it seems that

问题 I have a controller that run some code, I wrap some code in try/catch and wish to break the controller run during catch and return the error. It does not return, How can i wrap my response in action function as required ? Sample: def updateProduct(productId:String,lang: String, t: String) = Action { request => request.body.asJson.map { json => var product:Product=null try { product = json.as[Product] } catch { case ex: Exception => { val errorResponse:ErrorResponse[String] = ErrorResponse

问题 I'm on Play Framework 2.5.14, with play for java. I have a Service that loads and processes some data, and it takes a long time to process that data. I'm doing it this way: Controller public Result showData() { List<Data> data = service.getProcessedData(); return ok(views.html.data.render(data)); } View @(data: List[Data]) <!-- html code --> But when I go to the page it is in blank a long time because service.getProcessData() takes too long. When the function finish, then the view is rendered