我有下面的 persistence 文件 -
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="unit" >
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver" />
<property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/db" />
<property name="hibernate.connection.username" value="user" />
<property name="hibernate.connection.password" value="pwd" />
现在，当我在 glassfish 上部署它时 - 生成如下日志 -
HHH000204: Processing PersistenceUnitInfo [
name: application
...]
HHH000412: Hibernate Core {5.2.2.Final}
HHH000206: hibernate.properties not found
HHH000021: Bytecode provider name : javassist
HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
Warning: RAR5038:Unexpected exception while creating resource for pool DerbyPool. Exception : javax.resource.spi.ResourceAllocationException: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect.
Warning: RAR5117 : Failed to obtain/create connection from connection pool [ DerbyPool ]. Reason : com.sun.appserv.connectors.internal.api.PoolingException: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect.
Warning: RAR5114 : Error allocating connection : [Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect.]
WARN: HHH000342: Could not obtain connection to query metadata : Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect.
Info: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Info: HHH000422: Disabling contextual LOB creation as connection was null
Info: HHH000397: Using ASTQueryTranslatorFactory
Info: Loading application [application] at [/application]
Info: application was successfully deployed in 14,905 milliseconds.
为什么 glassfish 提示 derby？我没有使用它。
并且，当我尝试访问休息服务时 - 在内部用于 entitymanager - 我得到以下堆栈跟踪 -
2016-10-03T12:41:03.337+0530|Info: HHH000204: Processing PersistenceUnitInfo [
name: unit
...]
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
Info: HHH10001005: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/db]
Info: HHH10001001: Connection properties: {user=user, password=****}
Info: HHH10001003: Autocommit mode: false
Info: HHH000115: Hibernate connection pool size: 20 (min=1)
Info: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
Info: HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
Info: HHH000397: Using ASTQueryTranslatorFactory
Info: not null <<<<<<---------- this is my EntityManager instance which is not null
Warning: RAR5038:Unexpected exception while creating resource for pool DerbyPool. Exception : javax.resource.spi.ResourceAllocationException: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect.
Warning: RAR5117 : Failed to obtain/create connection from connection pool [ DerbyPool ]. Reason : com.sun.appserv.connectors.internal.api.PoolingException: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect.
Warning: RAR5114 : Error allocating connection : [Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect.]
WARN: SQL Error: 0, SQLState: null
ERROR: Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect.
ERROR: HHH000337: Unable to mark for rollback on PersistenceException:
org.hibernate.resource.transaction.backend.jta.internal.JtaPlatformInaccessibleException: Unable to access TransactionManager or UserTransaction to make physical transaction delegate
at org.hibernate.resource.transaction.backend.jta.internal.JtaTransactionCoordinatorImpl.makePhysicalTransactionDelegate(JtaTransactionCoordinatorImpl.java:229)
at org.hibernate.resource.transaction.backend.jta.internal.JtaTransactionCoordinatorImpl.getTransactionDriverControl(JtaTransactionCoordinatorImpl.java:203)
at org.hibernate.engine.transaction.internal.TransactionImpl.<init>(TransactionImpl.java:37)
at org.hibernate.internal.AbstractSharedSessionContract.accessTransaction(AbstractSharedSessionContract.java:372)
at org.hibernate.internal.AbstractSharedSessionContract.markForRollbackOnly(AbstractSharedSessionContract.java:342)
at org.hibernate.internal.ExceptionConverterImpl.handlePersistenceException(ExceptionConverterImpl.java:271)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:148)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:155)
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1407)
at org.hibernate.Query.getResultList(Query.java:417)
at org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:72)
at com.sun.enterprise.container.common.impl.QueryWrapper.getResultList(QueryWrapper.java:84)
at com.sun.enterprise.container.common.impl.TypedQueryWrapper.getResultList(TypedQueryWrapper.java:73)
at RESTClass.findAll(RESTClass.java:76)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:471)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:425)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:383)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:336)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:223)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1681)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:416)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:283)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:466)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:169)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:526)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571)
at java.lang.Thread.run(Thread.java:745)
Warning: StandardWrapperValve[rest_servlet]: Servlet.service() for servlet rest_servlet threw exception
java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.<init>(Socket.java:434)
at java.net.Socket.<init>(Socket.java:211)
at javax.net.DefaultSocketFactory.createSocket(SocketFactory.java:271)
at org.apache.derby.client.net.OpenSocketAction.run(Unknown Source)
at org.apache.derby.client.net.OpenSocketAction.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.client.net.NetAgent.<init>(Unknown Source)
at org.apache.derby.client.net.NetConnection.newAgent_(Unknown Source)
at org.apache.derby.client.am.Connection.initConnection(Unknown Source)
at org.apache.derby.client.am.Connection.<init>(Unknown Source)
at org.apache.derby.client.net.NetConnection.<init>(Unknown Source)
at org.apache.derby.client.net.NetConnection40.<init>(Unknown Source)
at org.apache.derby.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(Unknown Source)
at org.apache.derby.jdbc.ClientBaseDataSourceRoot.getConnectionX(Unknown Source)
at org.apache.derby.jdbc.ClientBaseDataSourceRoot.getConnection(Unknown Source)
at com.sun.gjc.spi.DSManagedConnectionFactory.createManagedConnection(DSManagedConnectionFactory.java:117)
at com.sun.enterprise.resource.allocator.LocalTxConnectorAllocator.createResource(LocalTxConnectorAllocator.java:87)
at com.sun.enterprise.resource.pool.ConnectionPool.createSingleResource(ConnectionPool.java:907)
at com.sun.enterprise.resource.pool.ConnectionPool.createResource(ConnectionPool.java:1189)
at com.sun.enterprise.resource.pool.datastructure.RWLockDataStructure.addResource(RWLockDataStructure.java:98)
at com.sun.enterprise.resource.pool.ConnectionPool.addResource(ConnectionPool.java:282)
at com.sun.enterprise.resource.pool.ConnectionPool.createResourceAndAddToPool(ConnectionPool.java:1512)
at com.sun.enterprise.resource.pool.ConnectionPool.createResources(ConnectionPool.java:944)
at com.sun.enterprise.resource.pool.ConnectionPool.initPool(ConnectionPool.java:230)
at com.sun.enterprise.resource.pool.ConnectionPool.internalGetResource(ConnectionPool.java:511)
at com.sun.enterprise.resource.pool.ConnectionPool.getResource(ConnectionPool.java:381)
at com.sun.enterprise.resource.pool.PoolManagerImpl.getResourceFromPool(PoolManagerImpl.java:245)
at com.sun.enterprise.resource.pool.PoolManagerImpl.getResource(PoolManagerImpl.java:171)
at com.sun.enterprise.connectors.ConnectionManagerImpl.getResource(ConnectionManagerImpl.java:360)
at com.sun.enterprise.connectors.ConnectionManagerImpl.internalGetConnection(ConnectionManagerImpl.java:307)
at com.sun.enterprise.connectors.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:196)
at com.sun.enterprise.connectors.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:171)
at com.sun.enterprise.connectors.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:166)
at com.sun.gjc.spi.base.AbstractDataSource.getConnection(AbstractDataSource.java:147)
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)
at org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:35)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:99)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:129)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.connection(StatementPreparerImpl.java:47)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:146)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:172)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:148)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1940)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1909)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1887)
at org.hibernate.loader.Loader.doQuery(Loader.java:932)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:349)
at org.hibernate.loader.Loader.doList(Loader.java:2615)
at org.hibernate.loader.Loader.doList(Loader.java:2598)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2430)
at org.hibernate.loader.Loader.list(Loader.java:2425)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:502)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:371)
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:216)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1458)
at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1426)
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1398)
at org.hibernate.Query.getResultList(Query.java:417)
at org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:72)
at com.sun.enterprise.container.common.impl.QueryWrapper.getResultList(QueryWrapper.java:84)
at com.sun.enterprise.container.common.impl.TypedQueryWrapper.getResultList(TypedQueryWrapper.java:73)
at com.accountpro.entity.service.AbstractFacade.findAll(AbstractFacade.java:43)
at com.accountpro.entity.service.CityFacadeREST.findAll(CityFacadeREST.java:76)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:471)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:425)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:383)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:336)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:223)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1681)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:416)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:283)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:466)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:169)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:526)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571)
at java.lang.Thread.run(Thread.java:745)
有人可以冒险猜测一下……比如哪里出了问题吗？我正在尝试使用 hibernate 附带的内置连接池。
更新 - 下面是如何在我的一个服务类中注入(inject) EntityManager
@PersistenceContext(unitName = "unit")
private EntityManager em;
最佳答案
查看堆栈跟踪中的以下行
ERROR: Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect.
您可以猜出问题所在。我认为第一个问题是数据库驱动程序问题。 1527是 Glassfish 应用服务器附带的 derby 数据库的默认端口号。
由于您没有在您的配置中提供任何数据源，因此服务器正在尝试查找默认数据库，在本例中为 derby；但是您无法连接到该数据库，因为您还没有为该数据库提供任何连接信息。
因此您必须在 META-INF/persistence.xml 中执行以下操作:
提供
transaction-type(在您的配置中，它被假定为 JTA，因为您正在按照规范在 JEE 环境中部署您的应用程序)作为<persistence-unit name="unit" transaction-type="JTA">提供
jta-data-source元素作为persistence-unit的子元素<persistence-unit name="unit" transaction-type="JTA"> ... <jta-data-source>your_data_source_name</jta-data-source> ... </persistence-unit>
为了使上述配置工作，您必须首先配置您的应用程序服务器 (Glassfish)。为此，您必须下载 MySQL jdbc 驱动程序，将其解压缩并将 jar 文件复制到 <glassfish_installation_directory>/glassfish/domains/domain1/lib 中。 (我在这里假设 Glassfish 3.1)。这样做的原因是 Glassfish 没有附带 MySQL 驱动程序，所以你必须自己做。
在此之后启动 Glassfish 并打开管理控制台 ( http://localhost:4848 )。在左 Pane 中打开
-
Resources/JDBC/JDBC Connection Pools并创建一个新的连接池 -
Resources/JDBC/JDBC Resources并创建一个新的数据源。您为数据源提供的名称是您在persistence.xml中必须使用的名称。如上所述。
关于java - 无法连接到 MySQL - Glassfish 和 Hibernate，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39826411/