jax-rs Web 服务无法使用休眠连接到数据库

Question

我遇到这样的错误，该怎么办？

输入异常报告

消息 org.springframework.transaction.CannotCreateTransactionException： 无法为事务打开 Hibernate Session；嵌套异常是 org.hibernate.exception.SQLGrammarException：无法打开连接

描述服务器遇到阻止它的内部错误 完成此请求。

异常

org.jboss.resteasy.spi.UnhandledException: org.springframework.transaction.CannotCreateTransactionException： 无法为事务打开 Hibernate Session；嵌套异常是 org.hibernate.exception.SQLGrammarException：无法打开连接 org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:76) org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:212) org.jboss.resteasy.core.SynchronousDispatcher.writeException（SynchronousDispatcher.java:149） org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:372) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179) org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

根本原因

org.springframework.transaction.CannotCreateTransactionException: 无法为事务打开 Hibernate Session；嵌套异常是 org.hibernate.exception.SQLGrammarException：无法打开连接 org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:515) org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372) org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:417) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:255) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) com.sun.proxy.$Proxy34.getCustomer（未知来源） com.resteasy.series.spring.hibernate.service.CustomerServiceImpl.getCustomerInfo(CustomerServiceImpl.java:33) sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法） sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:497) org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137) org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296) org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250) org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:237) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179) org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

根本原因

org.hibernate.exception.SQLGrammarException：无法打开连接 org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:82) org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49) org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:124) org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109) org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:221) org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:157) org.hibernate.internal.SessionImpl.connection(SessionImpl.java:427) org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:429) org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372) org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:417) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:255) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) com.sun.proxy.$Proxy34.getCustomer（未知来源） com.resteasy.series.spring.hibernate.service.CustomerServiceImpl.getCustomerInfo(CustomerServiceImpl.java:33) sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法） sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:497) org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137) org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296) org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250) org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:237) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179) org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

根本原因

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 未知 数据库“基准资源” sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法） sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) java.lang.reflect.Constructor.newInstance(Constructor.java:422) com.mysql.jdbc.Util.handleNewInstance(Util.java:408) com.mysql.jdbc.Util.getInstance(Util.java:383) com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1062) com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4208) com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4140) com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:925) com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1747) com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1287) com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2494) com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2527) com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2309) com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:834) com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:46) sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法） sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) java.lang.reflect.Constructor.newInstance(Constructor.java:422) com.mysql.jdbc.Util.handleNewInstance(Util.java:408) com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:419) com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344) java.sql.DriverManager.getConnection(DriverManager.java:664) java.sql.DriverManager.getConnection(DriverManager.java:208) org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:173) org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:164) org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:153) org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:119) org.hibernate.service.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:141) org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:301) org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:214) org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:157) org.hibernate.internal.SessionImpl.connection(SessionImpl.java:427) org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:429) org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372) org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:417) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:255) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) com.sun.proxy.$Proxy34.getCustomer（未知来源） com.resteasy.series.spring.hibernate.service.CustomerServiceImpl.getCustomerInfo(CustomerServiceImpl.java:33) sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法） sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:497) org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137) org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296) org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250) org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:237) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356) org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179) org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56) org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

注意 Apache Tomcat/8.0.23 日志中提供了根本原因的完整堆栈跟踪。

Answer 1

在您的 hibernate.cfg.xml 中，检查以下属性，

property name="hibernate.connection.url" jdbc:mysql://localhost:3306/benchresources property

如果存在，则在 MySql 中创建一个名为“benchresources”的数据库（如果您使用的是 mysql）