{"timestamp":1710818103854,"status":500,"error":"Internal Server Error","exception":"org.springframework.transaction.CannotCreateTransactionException","message":"Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection","trace":"org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection\n\tat org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:431)\n\tat org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:377)\n\tat org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:461)\n\tat org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:277)\n\tat org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)\n\tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)\n\tat org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:671)\n\tat com.plug.service.impl.UrlReferServiceImpl$$EnhancerBySpringCGLIB$$7d82e942.save()\n\tat com.core.support.ForeInterceptor.preHandle(ForeInterceptor.java:164)\n\tat org.springframework.web.servlet.HandlerExecutionChain.applyPreHandle(HandlerExecutionChain.java:133)\n\tat org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:962)\n\tat org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)\n\tat org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)\n\tat org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:621)\n\tat org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:728)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat com.core.CaseInsensitiveRequestParameterNameFilter.doFilterInternal(CaseInsensitiveRequestParameterNameFilter.java:31)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:112)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)\n\tat org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)\n\tat org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)\n\tat org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)\n\tat org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)\n\tat org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)\n\tat org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)\n\tat org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)\n\tat org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)\n\tat org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)\n\tat org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)\n\tat org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)\n\tat org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347)\n\tat org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:178)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat com.core.support.CsrfFilter.doFilterInternal(CsrfFilter.java:25)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:171)\n\tat org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:80)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:130)\n\tat org.springframework.boot.web.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66)\n\tat org.springframework.boot.web.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:105)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:123)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)\n\tat org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)\n\tat org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:492)\n\tat org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:165)\n\tat org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)\n\tat org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:1025)\n\tat org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)\n\tat org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:452)\n\tat org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1201)\n\tat org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:654)\n\tat org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:317)\n\tat java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)\n\tat java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)\n\tat org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)\n\tat java.lang.Thread.run(Thread.java:748)\nCaused by: javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection\n\tat org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1692)\n\tat org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1602)\n\tat org.hibernate.jpa.spi.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1700)\n\tat org.hibernate.jpa.internal.TransactionImpl.begin(TransactionImpl.java:48)\n\tat org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:189)\n\tat org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380)\n\t... 94 more\nCaused by: org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection\n\tat org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:115)\n\tat org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)\n\tat org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)\n\tat org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95)\n\tat org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:90)\n\tat org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:112)\n\tat org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:230)\n\tat org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:237)\n\tat org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:214)\n\tat org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:52)\n\tat org.hibernate.internal.SessionImpl.beginTransaction(SessionImpl.java:1512)\n\tat org.hibernate.jpa.internal.TransactionImpl.begin(TransactionImpl.java:45)\n\t... 96 more\nCaused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure\n\nThe last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.\n\tat sun.reflect.GeneratedConstructorAccessor528.newInstance(Unknown Source)\n\tat sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)\n\tat java.lang.reflect.Constructor.newInstance(Constructor.java:423)\n\tat com.mysql.jdbc.Util.handleNewInstance(Util.java:425)\n\tat com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:989)\n\tat com.mysql.jdbc.MysqlIO.(MysqlIO.java:341)\n\tat com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2203)\n\tat com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2236)\n\tat com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2035)\n\tat com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:790)\n\tat com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:47)\n\tat sun.reflect.GeneratedConstructorAccessor49.newInstance(Unknown Source)\n\tat sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)\n\tat java.lang.reflect.Constructor.newInstance(Constructor.java:423)\n\tat com.mysql.jdbc.Util.handleNewInstance(Util.java:425)\n\tat com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400)\n\tat com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)\n\tat org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)\n\tat org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)\n\tat org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:713)\n\tat org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:647)\n\tat org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:189)\n\tat org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)\n\tat org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)\n\tat org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:386)\n\tat org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:87)\n\t... 103 more\nCaused by: java.net.ConnectException: Connection refused (Connection refused)\n\tat java.net.PlainSocketImpl.socketConnect(Native Method)\n\tat java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)\n\tat java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)\n\tat java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)\n\tat java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)\n\tat java.net.Socket.connect(Socket.java:589)\n\tat com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:211)\n\tat com.mysql.jdbc.MysqlIO.(MysqlIO.java:300)\n\t... 123 more\n","path":"/edu/6617.html"}