我在使用 MySqL 与 Play 2.4 一起工作时遇到问题
例如，如果我基于“play-java-intro”模板创建一个带有激活器的应用程序 (详见下文)对应于 video显示在 playframework.com 的起始页上, 到目前为止一切正常。然而，这是使用内存中的 h2 数据库。
当我尝试修改项目以改用 mysql 时，出现“执行异常”:
--- (Running the application, auto-reloading is enabled) ---
[info] p.a.l.c.ActorSystemProvider - Starting application default Akka system: application
[info] p.c.s.NettyServer - Listening for HTTP on /0:0:0:0:0:0:0:0:9000
(Server started, use Ctrl+D to stop and go back to the console...)
Warning: node.js detection failed, sbt will use the Rhino based Trireme JavaScript engine instead to run JavaScript assets compilation, which in some cases may be orders of magnitude slower than using node.js.
[info] - application - Creating Pool for datasource 'default'
[info] - play.api.db.HikariCPConnectionPool - datasource [default] bound to JNDI as DefaultDS
[info] - play.api.db.DefaultDBApi - Database [default] connected at jdbc:mysql://localhost/foo_db
[info] - play.api.libs.concurrent.ActorSystemProvider - Starting application default Akka system: application
[info] - play.api.Play - Application started (Dev)
[error] - play.core.server.netty.PlayDefaultUpstreamHandler - Cannot invoke the action
com.google.inject.ProvisionException: Unable to provision, see the following errors:
1) Error injecting constructor, java.lang.NoSuchMethodError: javax.persistence.Table.indexes()[Ljavax/persistence/Index;
at play.db.jpa.DefaultJPAApi$JPAApiProvider.<init>(DefaultJPAApi.java:35)
at play.db.jpa.DefaultJPAApi$JPAApiProvider.class(DefaultJPAApi.java:30)
while locating play.db.jpa.DefaultJPAApi$JPAApiProvider
while locating play.db.jpa.JPAApi
1 error
at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1025) ~[guice.jar:na]
at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1051) ~[guice.jar:na]
at play.api.inject.guice.GuiceInjector.instanceOf(GuiceInjectorBuilder.scala:321) ~[play_2.10-2.4.2.jar:2.4.2]
at play.inject.DelegateInjector.instanceOf(DelegateInjector.java:22) ~[play_2.10-2.4.2.jar:2.4.2]
at play.db.jpa.JPA.jpaApi(JPA.java:46) ~[play-java-jpa_2.10-2.4.2.jar:2.4.2]
at play.db.jpa.JPA.withTransaction(JPA.java:159) ~[play-java-jpa_2.10-2.4.2.jar:2.4.2]
at play.db.jpa.TransactionalAction.call(TransactionalAction.java:16) ~[play-java-jpa_2.10-2.4.2.jar:2.4.2]
at play.core.j.JavaAction$$anonfun$7.apply(JavaAction.scala:94) ~[play_2.10-2.4.2.jar:2.4.2]
at play.core.j.JavaAction$$anonfun$7.apply(JavaAction.scala:94) ~[play_2.10-2.4.2.jar:2.4.2]
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) ~[scala-library-2.10.5.jar:na]
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) ~[scala-library-2.10.5.jar:na]
at play.core.j.HttpExecutionContext$$anon$2.run(HttpExecutionContext.scala:40) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Execution$trampoline$.execute(Execution.scala:70) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.core.j.HttpExecutionContext.execute(HttpExecutionContext.scala:32) ~[play_2.10-2.4.2.jar:2.4.2]
at scala.concurrent.impl.Future$.apply(Future.scala:31) ~[scala-library-2.10.5.jar:na]
at scala.concurrent.Future$.apply(Future.scala:485) ~[scala-library-2.10.5.jar:na]
at play.core.j.JavaAction.apply(JavaAction.scala:94) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4$$anonfun$apply$5.apply(Action.scala:105) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4$$anonfun$apply$5.apply(Action.scala:105) ~[play_2.10-2.4.2.jar:2.4.2]
at play.utils.Threads$.withContextClassLoader(Threads.scala:21) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4.apply(Action.scala:104) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4.apply(Action.scala:103) ~[play_2.10-2.4.2.jar:2.4.2]
at scala.Option.map(Option.scala:145) ~[scala-library-2.10.5.jar:na]
at play.api.mvc.Action$$anonfun$apply$1.apply(Action.scala:103) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.mvc.Action$$anonfun$apply$1.apply(Action.scala:96) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$mapM$1.apply(Iteratee.scala:524) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$mapM$1.apply(Iteratee.scala:524) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$flatMapM$1.apply(Iteratee.scala:560) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$flatMapM$1.apply(Iteratee.scala:560) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$flatMap$1$$anonfun$apply$14.apply(Iteratee.scala:537) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$flatMap$1$$anonfun$apply$14.apply(Iteratee.scala:537) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) ~[scala-library-2.10.5.jar:na]
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) ~[scala-library-2.10.5.jar:na]
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40) [akka-actor_2.10-2.3.11.jar:na]
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397) [akka-actor_2.10-2.3.11.jar:na]
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) [scala-library-2.10.5.jar:na]
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) [scala-library-2.10.5.jar:na]
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) [scala-library-2.10.5.jar:na]
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) [scala-library-2.10.5.jar:na]
Caused by: java.lang.NoSuchMethodError: javax.persistence.Table.indexes()[Ljavax/persistence/Index;
at org.hibernate.cfg.annotations.EntityBinder.processComplementaryTableDefinitions(EntityBinder.java:973) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:824) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:3845) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3799) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1412) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1846) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:852) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:845) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:844) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:75) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:54) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83) ~[persistence-api-1.0.jar:1.0]
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60) ~[persistence-api-1.0.jar:1.0]
at play.db.jpa.DefaultJPAApi.start(DefaultJPAApi.java:56) ~[play-java-jpa_2.10-2.4.2.jar:2.4.2]
at play.db.jpa.DefaultJPAApi$JPAApiProvider.<init>(DefaultJPAApi.java:42) ~[play-java-jpa_2.10-2.4.2.jar:2.4.2]
at play.db.jpa.DefaultJPAApi$JPAApiProvider$$FastClassByGuice$$dcd4cdbd.newInstance(<generated>) ~[guice.jar:2.4.2]
at com.google.inject.internal.cglib.reflect.$FastConstructor.newInstance(FastConstructor.java:40) ~[guice.jar:na]
at com.google.inject.internal.DefaultConstructionProxyFactory$1.newInstance(DefaultConstructionProxyFactory.java:61) ~[guice.jar:na]
at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:105) ~[guice.jar:na]
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:85) ~[guice.jar:na]
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:267) ~[guice.jar:na]
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46) ~[guice.jar:na]
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103) ~[guice.jar:na]
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40) ~[guice.jar:na]
at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:145) ~[guice.jar:na]
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41) ~[guice.jar:na]
at com.google.inject.internal.BoundProviderFactory.get(BoundProviderFactory.java:61) ~[guice.jar:na]
at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016) ~[guice.jar:na]
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092) ~[guice.jar:na]
at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012) ~[guice.jar:na]
... 38 common frames omitted
[error] - application -
! @6n9po3p32 - Internal server error, for (POST) [/person] ->
play.api.http.HttpErrorHandlerExceptions$$anon$1: Execution exception[[ProvisionException: Unable to provision, see the following errors:
1) Error injecting constructor, java.lang.NoSuchMethodError: javax.persistence.Table.indexes()[Ljavax/persistence/Index;
at play.db.jpa.DefaultJPAApi$JPAApiProvider.<init>(DefaultJPAApi.java:35)
at play.db.jpa.DefaultJPAApi$JPAApiProvider.class(DefaultJPAApi.java:30)
while locating play.db.jpa.DefaultJPAApi$JPAApiProvider
while locating play.db.jpa.JPAApi
1 error]]
at play.api.http.HttpErrorHandlerExceptions$.throwableToUsefulException(HttpErrorHandler.scala:265) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.http.DefaultHttpErrorHandler.onServerError(HttpErrorHandler.scala:191) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.GlobalSettings$class.onError(GlobalSettings.scala:179) [play_2.10-2.4.2.jar:2.4.2]
at play.api.DefaultGlobal$.onError(GlobalSettings.scala:212) [play_2.10-2.4.2.jar:2.4.2]
at play.api.http.GlobalSettingsHttpErrorHandler.onServerError(HttpErrorHandler.scala:94) [play_2.10-2.4.2.jar:2.4.2]
at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$3.applyOrElse(PlayDefaultUpstreamHandler.scala:273) [play-netty-server_2.10-2.4.2.jar:2.4.2]
at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$3.applyOrElse(PlayDefaultUpstreamHandler.scala:269) [play-netty-server_2.10-2.4.2.jar:2.4.2]
at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:344) [scala-library-2.10.5.jar:na]
at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:343) [scala-library-2.10.5.jar:na]
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) [scala-library-2.10.5.jar:na]
at play.api.libs.iteratee.Execution$trampoline$.executeScheduled(Execution.scala:109) [play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Execution$trampoline$.execute(Execution.scala:71) [play-iteratees_2.10-2.4.2.jar:2.4.2]
at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:40) [scala-library-2.10.5.jar:na]
at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:248) [scala-library-2.10.5.jar:na]
at scala.concurrent.Promise$class.complete(Promise.scala:55) [scala-library-2.10.5.jar:na]
at scala.concurrent.impl.Promise$DefaultPromise.complete(Promise.scala:153) [scala-library-2.10.5.jar:na]
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:23) [scala-library-2.10.5.jar:na]
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40) [akka-actor_2.10-2.3.11.jar:na]
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397) [akka-actor_2.10-2.3.11.jar:na]
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) [scala-library-2.10.5.jar:na]
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) [scala-library-2.10.5.jar:na]
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) [scala-library-2.10.5.jar:na]
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) [scala-library-2.10.5.jar:na]
Caused by: com.google.inject.ProvisionException: Unable to provision, see the following errors:
1) Error injecting constructor, java.lang.NoSuchMethodError: javax.persistence.Table.indexes()[Ljavax/persistence/Index;
at play.db.jpa.DefaultJPAApi$JPAApiProvider.<init>(DefaultJPAApi.java:35)
at play.db.jpa.DefaultJPAApi$JPAApiProvider.class(DefaultJPAApi.java:30)
while locating play.db.jpa.DefaultJPAApi$JPAApiProvider
while locating play.db.jpa.JPAApi
1 error
at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1025) ~[guice.jar:na]
at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1051) ~[guice.jar:na]
at play.api.inject.guice.GuiceInjector.instanceOf(GuiceInjectorBuilder.scala:321) ~[play_2.10-2.4.2.jar:2.4.2]
at play.inject.DelegateInjector.instanceOf(DelegateInjector.java:22) ~[play_2.10-2.4.2.jar:2.4.2]
at play.db.jpa.JPA.jpaApi(JPA.java:46) ~[play-java-jpa_2.10-2.4.2.jar:2.4.2]
at play.db.jpa.JPA.withTransaction(JPA.java:159) ~[play-java-jpa_2.10-2.4.2.jar:2.4.2]
at play.db.jpa.TransactionalAction.call(TransactionalAction.java:16) ~[play-java-jpa_2.10-2.4.2.jar:2.4.2]
at play.core.j.JavaAction$$anonfun$7.apply(JavaAction.scala:94) ~[play_2.10-2.4.2.jar:2.4.2]
at play.core.j.JavaAction$$anonfun$7.apply(JavaAction.scala:94) ~[play_2.10-2.4.2.jar:2.4.2]
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) [scala-library-2.10.5.jar:na]
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) [scala-library-2.10.5.jar:na]
at play.core.j.HttpExecutionContext$$anon$2.run(HttpExecutionContext.scala:40) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Execution$trampoline$.execute(Execution.scala:70) [play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.core.j.HttpExecutionContext.execute(HttpExecutionContext.scala:32) ~[play_2.10-2.4.2.jar:2.4.2]
at scala.concurrent.impl.Future$.apply(Future.scala:31) ~[scala-library-2.10.5.jar:na]
at scala.concurrent.Future$.apply(Future.scala:485) ~[scala-library-2.10.5.jar:na]
at play.core.j.JavaAction.apply(JavaAction.scala:94) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4$$anonfun$apply$5.apply(Action.scala:105) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4$$anonfun$apply$5.apply(Action.scala:105) ~[play_2.10-2.4.2.jar:2.4.2]
at play.utils.Threads$.withContextClassLoader(Threads.scala:21) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4.apply(Action.scala:104) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4.apply(Action.scala:103) ~[play_2.10-2.4.2.jar:2.4.2]
at scala.Option.map(Option.scala:145) ~[scala-library-2.10.5.jar:na]
at play.api.mvc.Action$$anonfun$apply$1.apply(Action.scala:103) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.mvc.Action$$anonfun$apply$1.apply(Action.scala:96) ~[play_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$mapM$1.apply(Iteratee.scala:524) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$mapM$1.apply(Iteratee.scala:524) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$flatMapM$1.apply(Iteratee.scala:560) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$flatMapM$1.apply(Iteratee.scala:560) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$flatMap$1$$anonfun$apply$14.apply(Iteratee.scala:537) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at play.api.libs.iteratee.Iteratee$$anonfun$flatMap$1$$anonfun$apply$14.apply(Iteratee.scala:537) ~[play-iteratees_2.10-2.4.2.jar:2.4.2]
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) [scala-library-2.10.5.jar:na]
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) [scala-library-2.10.5.jar:na]
... 6 common frames omitted
Caused by: java.lang.NoSuchMethodError: javax.persistence.Table.indexes()[Ljavax/persistence/Index;
at org.hibernate.cfg.annotations.EntityBinder.processComplementaryTableDefinitions(EntityBinder.java:973) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:824) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:3845) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3799) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1412) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1846) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:852) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:845) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398) ~[hibernate-core-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:844) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:75) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:54) ~[hibernate-entitymanager-4.3.7.Final.jar:4.3.7.Final]
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83) ~[persistence-api-1.0.jar:1.0]
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60) ~[persistence-api-1.0.jar:1.0]
at play.db.jpa.DefaultJPAApi.start(DefaultJPAApi.java:56) ~[play-java-jpa_2.10-2.4.2.jar:2.4.2]
at play.db.jpa.DefaultJPAApi$JPAApiProvider.<init>(DefaultJPAApi.java:42) ~[play-java-jpa_2.10-2.4.2.jar:2.4.2]
at play.db.jpa.DefaultJPAApi$JPAApiProvider$$FastClassByGuice$$dcd4cdbd.newInstance(<generated>) ~[guice.jar:2.4.2]
at com.google.inject.internal.cglib.reflect.$FastConstructor.newInstance(FastConstructor.java:40) ~[guice.jar:na]
at com.google.inject.internal.DefaultConstructionProxyFactory$1.newInstance(DefaultConstructionProxyFactory.java:61) ~[guice.jar:na]
at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:105) ~[guice.jar:na]
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:85) ~[guice.jar:na]
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:267) ~[guice.jar:na]
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46) ~[guice.jar:na]
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103) ~[guice.jar:na]
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40) ~[guice.jar:na]
at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:145) ~[guice.jar:na]
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41) ~[guice.jar:na]
at com.google.inject.internal.BoundProviderFactory.get(BoundProviderFactory.java:61) ~[guice.jar:na]
at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1016) ~[guice.jar:na]
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092) ~[guice.jar:na]
at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1012) ~[guice.jar:na]
... 38 common frames omitted
当我尝试保存到数据库时。
“conf/evolutions/default/1.sql”确实被创建了，而且 mysql 数据库似乎确实得到了合适的表 已插入，但我似乎无法将任何行保存到表中。
非常感谢您提供解决方案。
非常感谢。
下面是我的代码:
(1) 我有一个系统
OpenSuse 13.2 Linux，带有 Mariadb，
智能 14，
Play 2.4.2
mysql 正在运行并且有一个数据库“foo_db” 密码为空的用户“root”具有完全访问权限。
MariaDB [foo_db]> describe person_tb;
+-------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+--------------+------+-----+---------+-------+
| id | varchar(255) | NO | PRI | NULL | |
| name | varchar(255) | YES | | NULL | |
基于“play-java-intro”模板创建一个新的 play 应用
> activator new play-java-intro_mysql play-java-intro
> cd my-play-java-sql
> activator run
将浏览器指向 http://localhost:9000/
该应用程序运行良好.. 可以按照教程中的描述添加“人员”等。 video tutorial
(2) 现在我修改了一些文件，尝试改用mysql。
之后的文件下方人.java:
package models;
import javax.persistence.*;
@Entity
@Table(name = "person_tb")
public class Person {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
public String id;
public String name;
}
应用程序配置文件:
play.crypto.secret = "changeme"
play.i18n.langs = [ "en" ]
db.default.driver=com.mysql.jdbc.Driver
db.default.url="jdbc:mysql://localhost/foo_db"
db.default.username=root
db.default.password=""
ebean.default=["models.*"]
#applyEvolutions.default=true
db.default.jndiName=DefaultDS
jpa.default=defaultPersistenceUnit
构建.sbt:
name := """play-java-intro_mysql"""
version := "1.0-SNAPSHOT"
lazy val root = (project in file(".")).enablePlugins(PlayJava, PlayEbean)
libraryDependencies ++= Seq(
evolutions,
javaJpa,
javaJdbc,
"mysql" % "mysql-connector-java" % "5.1.18",
"org.hibernate" % "hibernate-entitymanager" % "4.3.7.Final"
)
routesGenerator := InjectedRoutesGenerator
插件.sbt:
addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.4.2")
addSbtPlugin("com.typesafe.sbt" % "sbt-coffeescript" % "1.0.0")
addSbtPlugin("com.typesafe.sbt" % "sbt-less" % "1.0.6")
addSbtPlugin("com.typesafe.sbt" % "sbt-jshint" % "1.0.3")
addSbtPlugin("com.typesafe.sbt" % "sbt-rjs" % "1.0.7")
addSbtPlugin("com.typesafe.sbt" % "sbt-digest" % "1.1.0")
addSbtPlugin("com.typesafe.sbt" % "sbt-mocha" % "1.1.0")
addSbtPlugin("com.typesafe.sbt" % "sbt-play-enhancer" % "1.1.0")
addSbtPlugin("com.typesafe.sbt" % "sbt-play-ebean" % "1.0.0")
最佳答案
“activator new”使用“play-java-intro”模板生成的代码不起作用(使用 MySQL)。为了让它工作，必须修改以下文件，如下所示:
app/controllers/Application.java
package controllers;
import play.*;
import play.db.ebean.Transactional;
import play.mvc.*;
import views.html.*;
import models.Person;
import play.data.Form;
import java.util.List;
import static play.libs.Json.*;
public class Application extends Controller {
public Result index() {
return ok(index.render());
}
@Transactional
public Result addPerson() {
// Person person = Form.form(Person.class).bindFromRequest().get();
// JPA.em().persist(person);
Person person = Form.form(Person.class).bindFromRequest().get();
person.save();
return redirect(routes.Application.index());
}
@Transactional
public Result getPersons() {
List<Person> persons = Person.FIND.findList();
//List<Person> persons = (List<Person>) JPA.em().createQuery("select p from Person p").getResultList();
return ok(toJson(persons));
}
app/models/Person.java
package models;
import javax.persistence.*;
import com.avaje.ebean.Model;
@Entity
public class Person extends Model {
@Id
public Long id;
public String name;
public static Model.Finder<Long, Person> FIND = new Model.Finder<>(Person.class);
}
build.sbt
name := """play-java-intro_mysql"""
version := "1.0-SNAPSHOT"
lazy val root = (project in file(".")).enablePlugins(PlayJava, PlayEbean)
libraryDependencies ++= Seq(
evolutions,
javaJdbc,
javaJpa,
"mysql" % "mysql-connector-java" % "5.1.18"
)
routesGenerator := InjectedRoutesGenerator
project/plugins.sbt
// The Play plugin
addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.4.2")
// Web plugins
addSbtPlugin("com.typesafe.sbt" % "sbt-coffeescript" % "1.0.0")
addSbtPlugin("com.typesafe.sbt" % "sbt-less" % "1.0.6")
addSbtPlugin("com.typesafe.sbt" % "sbt-jshint" % "1.0.3")
addSbtPlugin("com.typesafe.sbt" % "sbt-rjs" % "1.0.7")
addSbtPlugin("com.typesafe.sbt" % "sbt-digest" % "1.1.0")
addSbtPlugin("com.typesafe.sbt" % "sbt-mocha" % "1.1.0")
// Play enhancer - this automatically generates getters/setters for public fields
// and rewrites accessors of these fields to use the getters/setters. Remove this
// plugin if you prefer not to have this feature, or disable on a per project
// basis using disablePlugins(PlayEnhancer) in your build.sbt
addSbtPlugin("com.typesafe.sbt" % "sbt-play-enhancer" % "1.1.0")
// Play Ebean support, to enable, uncomment this line, and enable in your build.sbt
addSbtPlugin("com.typesafe.sbt" % "sbt-play-ebean" % "1.0.0")
conf/application.conf
play.crypto.secret = "changeme"
# The application languages
play.i18n.langs = [ "en" ]
# Database configuration
#H2
#db.default.driver=org.h2.Driver
#db.default.url="jdbc:h2:mem:play"
# db.default.username=sa
# db.default.password=""
# MySQL
db.default.driver=com.mysql.jdbc.Driver
# edit as appropriate.. database called "foo_db" must exit and be accessible by this user, with this password
db.default.url="jdbc:mysql://localhost/foo_db"
db.default.username=root
db.default.password=""
ebean.default=["models.*"]
命令行
> cd play-java-intro_mysql
> activator clean compile run
关于mysql - 玩2.4框架和MySQL，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32276544/