[英]Play Java - cannot connect do database postgreSQL
我使用激活器创建了新的play-java应用程序。 现在,我需要将其连接到postgreSQL数据库。 无论我尝试什么,我总是会遇到此错误:
Error in custom provider, Configuration error: Configuration error[Cannot connect to database [default]]
这是我的具有最新依赖项的build.sbt:
libraryDependencies += "postgresql" % "postgresql" % "9.1-901-1.jdbc4"
libraryDependencies += "mysql" % "mysql-connector-java" % "5.1.38"
这是application.conf:
db.default.driver=org.postgresql.Driver
db.default.url="jdbc:postgresql://localhost/table4you"
db.default.user="postgres"
db.default.password="test"
我什至尝试了这个:
db.default.driver=org.postgresql.Driver
db.default.url="jdbc:postgresql://postgres:test@localhost:6789/table4you"
这也不起作用。 之后,我尝试检查mySQL是否可以运行,并在build.sbt中添加了mysql依赖项,并将驱动程序和URL更改为:
#db.default.driver=com.mysql.jdbc.Driver
#db.default.url="jdbc:mysql://localhost/table4you"
#db.default.user="root"
#db.default.password=""
而且有效! 但是我真的必须使其与postgres一起使用。 现在,我假设问题出在数据库本身,而不是在application.conf文件中。 启动数据库的方式是,打开pgAdmin III,并在其中连接到服务器和table4you数据库(通过双击它们)。 我是否应该使用其他方式启动postgresql数据库? 我怎样做才能使其与postgresql一起使用?
编辑:我尝试了此操作,但是再次遇到相同的错误:我在heroku上创建了一个数据库,并且使用到那里的连接设置(主机名,用户名,密码和数据库名)来使用在线数据库,而不是本地主机。 遗憾的是输出与以前的:(。
这是错误的堆栈跟踪:
Unexpected exception
CreationException: Unable to create injector, see the following errors:
1) Error in custom provider, Configuration error: Configuration error[Cannot connect to database [default]]
while locating play.api.db.DBApiProvider
while locating play.api.db.DBApi
for parameter 0 at play.db.DefaultDBApi.<init>(DefaultDBApi.java:28)
at play.db.DefaultDBApi.class(DefaultDBApi.java:28)
while locating play.db.DefaultDBApi
while locating play.db.DBApi
for field at play.db.DBModule$NamedDatabaseProvider.dbApi(DBModule.java:61)
while locating play.db.DBModule$NamedDatabaseProvider
at com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize(Providers.java:149)
at play.db.DBModule.bindings(DBModule.java:40):
Binding(interface play.db.Database qualified with QualifierInstance(@play.db.NamedDatabase(value=default)) to ProviderTarget(play.db.DBModule$NamedDatabaseProvider@70606a)) (via modules: com.google.inject.util.Modules$OverrideModule -> play.api.inject.guice.GuiceableModuleConversions$$anon$1)
Caused by: Configuration error: Configuration error[Cannot connect to database [default]]
at play.api.Configuration$.configError(Configuration.scala:178)
at play.api.Configuration.reportError(Configuration.scala:829)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:48)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:42)
at scala.collection.immutable.List.foreach(List.scala:381)
at play.api.db.DefaultDBApi.connect(DefaultDBApi.scala:42)
at play.api.db.DBApiProvider.get$lzycompute(DBModule.scala:72)
at play.api.db.DBApiProvider.get(DBModule.scala:62)
at play.api.db.DBApiProvider.get(DBModule.scala:58)
at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)
at com.google.inject.internal.BoundProviderFactory.provision(BoundProviderFactory.java:72)
at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:61)
at com.google.inject.internal.BoundProviderFactory.get(BoundProviderFactory.java:62)
at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38)
at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62)
at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:104)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:85)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:267)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:145)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:56)
at com.google.inject.internal.SingleFieldInjector.inject(SingleFieldInjector.java:54)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:132)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:93)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:80)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103)
at com.google.inject.internal.MembersInjectorImpl.injectAndNotify(MembersInjectorImpl.java:80)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:62)
at com.google.inject.internal.InjectorImpl.injectMembers(InjectorImpl.java:984)
at com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize(Providers.java:149)
at com.google.inject.util.Providers$GuicifiedProviderWithDependencies$$FastClassByGuice$$2a7177aa.invoke(<generated>)
at com.google.inject.internal.cglib.reflect.$FastMethod.invoke(FastMethod.java:53)
at com.google.inject.internal.SingleMethodInjector$1.invoke(SingleMethodInjector.java:57)
at com.google.inject.internal.SingleMethodInjector.inject(SingleMethodInjector.java:91)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:132)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:93)
at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:80)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
at com.google.inject.internal.MembersInjectorImpl.injectAndNotify(MembersInjectorImpl.java:80)
at com.google.inject.internal.Initializer$InjectableReference.get(Initializer.java:174)
at com.google.inject.internal.Initializer.injectAll(Initializer.java:108)
at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:174)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:110)
at com.google.inject.Guice.createInjector(Guice.java:96)
at com.google.inject.Guice.createInjector(Guice.java:73)
at com.google.inject.Guice.createInjector(Guice.java:62)
at play.api.inject.guice.GuiceBuilder.injector(GuiceInjectorBuilder.scala:126)
at play.api.inject.guice.GuiceApplicationBuilder.build(GuiceApplicationBuilder.scala:93)
at play.api.inject.guice.GuiceApplicationLoader.load(GuiceApplicationLoader.scala:21)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1$$anonfun$2.apply(DevServerStart.scala:153)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1$$anonfun$2.apply(DevServerStart.scala:150)
at play.utils.Threads$.withContextClassLoader(Threads.scala:21)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(DevServerStart.scala:150)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(DevServerStart.scala:121)
at scala.Option.map(Option.scala:146)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1.apply(DevServerStart.scala:121)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1.apply(DevServerStart.scala:119)
at scala.util.Success.flatMap(Try.scala:230)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1.apply(DevServerStart.scala:119)
at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1.apply(DevServerStart.scala:111)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: Configuration error: Configuration error[Exception during pool initialization]
at play.api.Configuration$.configError(Configuration.scala:178)
at play.api.PlayConfig.reportError(Configuration.scala:1048)
at play.api.db.HikariCPConnectionPool.create(HikariCPModule.scala:69)
at play.api.db.PooledDatabase.createDataSource(Databases.scala:199)
at play.api.db.DefaultDatabase.dataSource$lzycompute(Databases.scala:124)
at play.api.db.DefaultDatabase.dataSource(Databases.scala:122)
at play.api.db.DefaultDatabase.getConnection(Databases.scala:143)
at play.api.db.DefaultDatabase.getConnection(Databases.scala:139)
at play.api.db.DefaultDBApi$$anonfun$connect$1.apply(DefaultDBApi.scala:44)
... 67 more
现在已修复,并且可以正常工作。 问题是我使用了旧的postgresql依赖关系(2011年制造),而当我将其替换为新的依赖关系(2015年12月)后,错误就消失了。 感谢@robinj的帮助。
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