無法連接到tomcat中的驅動程序錯誤。

我希望有人可以幫助我儘快..我能夠在本地主機上完全運行我的應用程序，但不幸的是，因爲我將一個戰爭文件部署到tomcat上，並嘗試運行它，它不斷給我下面的錯誤。正如我所提到的，我能夠連接到數據庫（不是我的本地主機，但數據庫在服務器上），並得到一個REST響應太好了，我不明白爲什麼我得到這個錯誤。是的，我有所有的hibernate和postgres jar文件，並添加maven的依賴關係，仍然tomcat運行驅動程序很難。請幫忙！無法連接到tomcat中的驅動程序錯誤。
錯誤日誌：
HTTP Status 500 - org.hibernate.service.spi.ServiceException: Unable to  create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] 

type Exception report 

message org.hibernate.service.spi.ServiceException: Unable to create  requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] 

description The server encountered an internal error that prevented it from fulfilling this request. 

exception 

javax.servlet.ServletException: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] 
org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:419) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221) 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
root cause 

org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] 
org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:267) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:231) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51) 
org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:240) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83) 
org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418) 
org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87) 
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:691) 
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:726) 
careers.nebula.ben.db.repository.signup.UserRepo.<init>(UserRepo.java:18) 
careers.nebula.ben.service.signup.UserInformation.getPrimaryUserInfo(UserInformation.java:44) 
careers.nebula.ben.iws.signup.UserInformationIWS.locateUserById(UserInformationIWS.java:38) 
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
java.lang.reflect.Method.invoke(Method.java:498) 
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:143) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:160) 
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:203) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:97) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102) 
org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:303) 
org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) 
org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) 
org.glassfish.jersey.internal.Errors.process(Errors.java:315) 
org.glassfish.jersey.internal.Errors.process(Errors.java:297) 
org.glassfish.jersey.internal.Errors.process(Errors.java:267) 
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) 
org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:286) 
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1072) 
org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:399) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221) 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
    root cause 

    org.hibernate.exception.JDBCConnectionException: Error calling Driver#connect 
org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:115) 
org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator$1$1.convert(BasicConnectionCreator.java:101) 
org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.convertSqlException(BasicConnectionCreator.java:123) 
org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:41) 
org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:58) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections.addConnections(PooledConnections.java:123) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init>(PooledConnections.java:42) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init>(PooledConnections.java:20) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections$Builder.build(PooledConnections.java:161) 
org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildPool(DriverManagerConnectionProviderImpl.java:109) 
org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:72) 
org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:240) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:145) 
org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66) 
org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) 
org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:257) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:231) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51) 
org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:240) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83) 
org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418) 
org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87) 
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:691) 
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:726) 
careers.nebula.ben.db.repository.signup.UserRepo.<init>(UserRepo.java:18) 
careers.nebula.ben.service.signup.UserInformation.getPrimaryUserInfo(UserInformation.java:44) 
careers.nebula.ben.iws.signup.UserInformationIWS.locateUserById(UserInformationIWS.java:38) 
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
java.lang.reflect.Method.invoke(Method.java:498) 
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:143) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:160) 
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:203) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:97) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102) 
org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:303) 
org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) 
org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) 
org.glassfish.jersey.internal.Errors.process(Errors.java:315) 
org.glassfish.jersey.internal.Errors.process(Errors.java:297) 
org.glassfish.jersey.internal.Errors.process(Errors.java:267) 
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) 
org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:286) 
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1072) 
org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:399) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221) 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
root cause 

org.postgresql.util.PSQLException: The connection attempt failed. 
org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:280) 
org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66) 
org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:211) 
org.postgresql.Driver.makeConnection(Driver.java:407) 
org.postgresql.Driver.connect(Driver.java:275) 
org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:38) 
org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:58) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections.addConnections(PooledConnections.java:123) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init>(PooledConnections.java:42) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init>(PooledConnections.java:20) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections$Builder.build(PooledConnections.java:161) 
org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildPool(DriverManagerConnectionProviderImpl.java:109) 
org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:72) 
org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:240) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:145) 
org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66) 
org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) 
org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:257) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:231) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51) 
org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:240) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83) 
org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418) 
org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87) 
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:691) 
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:726) 
careers.nebula.ben.db.repository.signup.UserRepo.<init>(UserRepo.java:18) 
careers.nebula.ben.service.signup.UserInformation.getPrimaryUserInfo(UserInformation.java:44) 
careers.nebula.ben.iws.signup.UserInformationIWS.locateUserById(UserInformationIWS.java:38) 
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
java.lang.reflect.Method.invoke(Method.java:498) 
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:143) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:160) 
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:203) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:97) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102) 
org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:303) 
org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) 
org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) 
org.glassfish.jersey.internal.Errors.process(Errors.java:315) 
org.glassfish.jersey.internal.Errors.process(Errors.java:297) 
org.glassfish.jersey.internal.Errors.process(Errors.java:267) 
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) 
org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:286) 
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1072) 
org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:399) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221) 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
root cause 

java.net.SocketTimeoutException: connect timed out 
java.net.PlainSocketImpl.socketConnect(Native Method) 
java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) 
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) 
java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) 
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) 
java.net.Socket.connect(Socket.java:589) 
org.postgresql.core.PGStream.<init>(PGStream.java:64) 
org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:150) 
org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66) 
org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:211) 
org.postgresql.Driver.makeConnection(Driver.java:407) 
org.postgresql.Driver.connect(Driver.java:275) 
org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:38) 
org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:58) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections.addConnections(PooledConnections.java:123) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init>(PooledConnections.java:42) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init>(PooledConnections.java:20) 
org.hibernate.engine.jdbc.connections.internal.PooledConnections$Builder.build(PooledConnections.java:161) 
org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildPool(DriverManagerConnectionProviderImpl.java:109) 
org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:72) 
org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:240) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:145) 
org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66) 
org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) 
org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:257) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:231) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51) 
org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:240) 
org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111) 
org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83) 
org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:418) 
org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:87) 
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:691) 
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:726) 
careers.nebula.ben.db.repository.signup.UserRepo.<init>(UserRepo.java:18) 
careers.nebula.ben.service.signup.UserInformation.getPrimaryUserInfo(UserInformation.java:44) 
careers.nebula.ben.iws.signup.UserInformationIWS.locateUserById(UserInformationIWS.java:38) 
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
java.lang.reflect.Method.invoke(Method.java:498) 
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:143) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:160) 
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:203) 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:97) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347) 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102) 
org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:303) 
org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) 
org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) 
org.glassfish.jersey.internal.Errors.process(Errors.java:315) 
org.glassfish.jersey.internal.Errors.process(Errors.java:297) 
org.glassfish.jersey.internal.Errors.process(Errors.java:267) 
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) 
org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:286) 
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1072) 
org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:399) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344) 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221) 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
note The full stack trace of the root cause is available in the Apache Tomcat/8.0.32 (Ubuntu) logs. 

Apache Tomcat/8.0.32 (Ubuntu)
來源
2016-08-12 ankibunkers
錯誤日誌顯示「連接超時」。看來你必須檢查從tomcat服務器機器到數據庫服務器機器的連通性，並確保數據庫服務器被配置爲接受來自tomcat服務器的連接。 – Glenn
嗨格倫，請您解釋一下。所以我在這裏休息 - 休眠 - postgres作爲我的堆棧。在我的本地跑步;休息是給我從postgres表中拉出正確的json。我部署我的應用程序到雲服務器上也有它的分貝（一旦成功連接通過本地），這個錯誤堆棧出現..我讀是通過所以它通過休眠exep，然後postgres驅動程序exep，並最終超時時fe沒有聽到任何東西。我最好的猜測是我的應用程序服務器缺少postgres驅動程序？嗯..意見大聲笑@格倫 – ankibunkers
它是找到驅動程序，否則你會有一個「ClassNotFound」異常。 Hibernate正試圖建立與數據庫的連接，但連接失敗：「調用Driver＃connect時出錯」。它使用Postgresql驅動程序，因爲：「org.postgresql.util.PSQLException：連接嘗試失敗。」但它最終失敗了，因爲它沒有從數據庫服務器獲得響應：「連接超時」。無法真正通過註釋進行調試，但需要驗證數據庫服務器是否正在運行，是否接受連接並且可以訪問。 – Glenn
不幸的是我跑進解決自己，所以顯然這可以爲不同的用戶不同，但不過因爲我是從本地連接我使用一個外部IP地址連接到數據庫但是，當我將應用程序部署到tomcat服務器上時，我遇到了這個異常。解;我只需要將我的hibernate.cfg.xml從外部更改爲內部IP地址，一切正常。
來源
2016-08-12 15:46:46 ankibunkers
無法連接到tomcat中的驅動程序錯誤。

回答

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