昆德拉用cassandra1.1.9和play framework2.0.4

Question

我试过了kundera cassandra over java play framework 2.0.4的例子[https://github.com/firekat/play-kundera]（https://github.com/firekat/play-kundera）。
我得到了异常..异常堆栈跟踪
2013-02-03 22:56:35,201 - [ERROR] - from com.impetus.kundera.persistence.PersistenceValidator in play-akka.actor.actions-dispatcher-9 class models.User is not a JPA managed object as we couldn't find metadata for it. This object can't be persisted 2013-02-03 22:56:35,230 - [ERROR] - from application in play-akka.actor.actions-dispatcher-9 ! @6d86e1m37 - Internal server error, for request [GET /user/create/:Emin] ->

play.core.ActionInvoker$$anonfun$receive$1$$anon$1: Execution exception [[KunderaException: java.lang.IllegalArgumentException: Entity object is invalid, operation failed. Please check previous log message for details]] at play.core.ActionInvoker$$anonfun$receive$1.apply(Invoker.scala:134) [play_2.9.1.jar:2.0.4] at play.core.ActionInvoker$$anonfun$receive$1.apply(Invoker.scala:115) [play_2.9.1.jar:2.0.4] at akka.actor.Actor$class.apply(Actor.scala:318) [akka-actor.jar:2.0.2] at play.core.ActionInvoker.apply(Invoker.scala:113) [play_2.9.1.jar:2.0.4] at akka.actor.ActorCell.invoke(ActorCell.scala:626) [akka-actor.jar:2.0.2] at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:197) [akka-actor.jar:2.0.2] at akka.dispatch.Mailbox.run(Mailbox.scala:179) [akka-actor.jar:2.0.2] at akka.dispatch.ForkJoinExecutorConfigurator$MailboxExecutionTask.exec(AbstractDispatcher.scala:516) [akka-actor.jar:2.0.2] at akka.jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:259) [akka-actor.jar:2.0.2] at akka.jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:975) [akka-actor.jar:2.0.2] at akka.jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1479) [akka-actor.jar:2.0.2] at akka.jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104) [akka-actor.jar:2.0.2] Caused by: com.impetus.kundera.KunderaException: java.lang.IllegalArgumentException: Entity object is invalid, operation failed. Please check previous log message for details at com.impetus.kundera.persistence.EntityManagerImpl.persist(EntityManagerImpl.java:220) ~[kundera-core-2.3.jar:na] at controllers.KunderaApp.createUser(KunderaApp.java:26) ~[classes/:na] at Routes$$anonfun$routes$1$$anonfun$apply$5$$anonfun$apply$6.apply(routes_routing.scala:56) ~[classes/:na] at Routes$$anonfun$routes$1$$anonfun$apply$5$$anonfun$apply$6.apply(routes_routing.scala:56) ~[classes/:na] at play.core.Router$HandlerInvoker$$anon$5$$anon$1.invocation(Router.scala:1090) ~[play_2.9.1.jar:2.0.4] at play.core.j.JavaAction$$anon$1.call(JavaAction.scala:33) ~[play_2.9.1.jar:2.0.4] at play.db.jpa.TransactionalAction$1.apply(TransactionalAction.java:19) ~[play_2.9.1.jar:2.0.4] at play.db.jpa.TransactionalAction$1.apply(TransactionalAction.java:17) ~[play_2.9.1.jar:2.0.4] at play.db.jpa.JPA.withTransaction(JPA.java:104) ~[play_2.9.1.jar:2.0.4] at play.db.jpa.TransactionalAction.call(TransactionalAction.java:14) ~[play_2.9.1.jar:2.0.4] at play.core.j.JavaAction$class.apply(JavaAction.scala:74) ~[play_2.9.1.jar:2.0.4] at play.core.Router$HandlerInvoker$$anon$5$$anon$1.apply(Router.scala:1089) ~[play_2.9.1.jar:2.0.4] at play.core.ActionInvoker$$anonfun$receive$1$$anonfun$6.apply(Invoker.scala:126) ~[play_2.9.1.jar:2.0.4] at play.core.ActionInvoker$$anonfun$receive$1$$anonfun$6.apply(Invoker.scala:126) ~[play_2.9.1.jar:2.0.4] at play.utils.Threads$.withContextClassLoader(Threads.scala:17) ~[play_2.9.1.jar:2.0.4] at play.core.ActionInvoker$$anonfun$receive$1.apply(Invoker.scala:125) [play_2.9.1.jar:2.0.4] ... 11 common frames omitted Caused by: java.lang.IllegalArgumentException: Entity object is invalid, operation failed. Please check previous log message for details at com.impetus.kundera.persistence.PersistenceDelegator.persist(PersistenceDelegator.java:146) ~[kundera-core-2.3.jar:na] at com.impetus.kundera.persistence.EntityManagerImpl.persist(EntityManagerImpl.java:214) ~[kundera-core-2.3.jar:na] ... 26 common frames omitted
您可能认为我创建了我的keyspace和column family。这是我在做卡桑德拉和-cli我检查了这是工作，我可以通过-cli
screenshoot http://c1302.hizliresim.com/16/3/jqzdp.png

Answer 1

插入数据按错误：

play.core.ActionInvoker $$ anonfun $获得$ 1 $$ anon $ 1：执行异常[[PersistenceLoaderException：com.impetus.kundera.utils.InvalidConfigurationException：重复名称为cassandra_pu的持久性单元。验证你的persistence.xml文件]] at play.core.ActionInvoker $$ anonfun $ receive $ 1.apply（Invoker.scala：82）[play_2.9.1.jar：2.0] at play.core.ActionInvoker $$ anonfun $获得$ 1.apply（Invoker.scala：63）[play_2.9.1.jar：2.0] at akka.actor.Actor $ class.apply（Actor.scala：290）[akka-actor.jar：2.0] at play .core.ActionInvoker.apply（Invoker.scala：61）[play_2.9.1.jar：2.0] at akka.actor.ActorCell.invoke（ActorCell.scala：617）[akka-actor.jar：2.0] at akka .dispatch.Mailbox.processMailbox（Mailbox.scala：179）[akka-actor.jar：2.0] at akka.dispatch.Mailbox.run（Mailbox.scala：161）[akka-actor.jar：2.0] at akka .dispatch.ForkJoinExecutorConfigurator $ MailboxExecutionTask.exec（AbstractDispatcher.scala：505）[akka-actor.jar：2.0] at akka.jsr166y.ForkJoinTask.doExec（ForkJoinTask.java:259）[akka-actor.jar：2.0] at akka.jsr166y.ForkJoinPool $ WorkQueue.runTask（ForkJoinPool.java:997）[akka-actor.jar：2.0 ]在akka.jsr166y.ForkJoinWorkerThread.run（ForkJoinWorkerThread.java:104）[akka-actor.jar：2.0] ] 引起：com.impetus.kundera.loader.PersistenceLoaderException：com.impetus.kundera.utils.InvalidConfigurationException：重复名称为cassandra_pu的持久性单元。验证persistence.xml文件 在com.impetus.kundera.configure.PersistenceUnitConfiguration.configure（PersistenceUnitConfiguration.java:103）〜[昆德拉-卡桑德拉-2.2.1-JAR-与-dependencies.jar：NA] 在COM .impetus.kundera.configure.Configurator.configure（Configurator.java:64）〜[kundera-cassandra-2.2.1-jar-with-dependencies.jar：na] at com.impetus.kundera.KunderaPersistence.initializeKundera（KunderaPersistence .java：103）〜[kundera-cassandra-2.2.1-jar-with-dependencies.jar：na] at com.impetus.kundera.KunderaPersistence.createEntityManagerFactory（KunderaPersistence.java:81）〜[kundera-cassandra-2.2 javax.persistence.createEntityManagerFactory（Unknown Source）〜[kundera-cassandra-2.2.1-jar-with-dependencies.jar：na] at javax。.1-jar-with-dependencies.jar：na] PE rsistence.Persistence.createEntityManagerFactory（Unknown Source）〜[kundera-cassandra-2.2.1-jar-with-dependencies.jar：na]

================= ================== 我建议你在（META-INF/persistence.xml）下更改持久化单元名称并尝试运行它。

-Vivek