我们开发了一个Springboot Java应用，我把它放在一个docker容器上作为开发环境。
Spring boot版本为1.5.6
使用的数据库是 SQL server 2016，它也是在 docker(windows 容器)上。
问题: 每当我重新启动 SQL DB 容器时，应用程序就会开始出现此错误。
2018-10-29 16:00:08,993 ERROR pool-13-thread-1 org.springframework.scheduling.support.TaskUtils$LoggingErrorHandler - Unexpected error occurred in scheduled task.
org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: com.microsoft.sqlserver.jdbc.SQLServerException: The connection is closed.
at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:431)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373)
at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:447)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:277)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:57)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy155.findOne(Unknown Source)
at au.com.outware.swepad.tasks.WorkOrderManagerTask.taskFetchAndProcessWorkOrderDetails(WorkOrderManagerTask.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: javax.persistence.PersistenceException: com.microsoft.sqlserver.jdbc.SQLServerException: The connection is closed.
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1692)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1602)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1700)
at org.hibernate.jpa.internal.TransactionImpl.begin(TransactionImpl.java:48)
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:189)
at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380)
... 30 common frames omitted
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The connection is closed.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:206)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.checkClosed(SQLServerConnection.java:724)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.setAutoCommit(SQLServerConnection.java:2615)
at sun.reflect.GeneratedMethodAccessor163.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:126)
at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:108)
at org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.invoke(AbstractCreateStatementInterceptor.java:79)
at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:108)
at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:81)
at com.sun.proxy.$Proxy102.setAutoCommit(Unknown Source)
at org.hibernate.resource.jdbc.internal.AbstractLogicalConnectionImplementor.begin(AbstractLogicalConnectionImplementor.java:67)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:238)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:214)
at org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:52)
at org.hibernate.internal.SessionImpl.beginTransaction(SessionImpl.java:1512)
at org.hibernate.jpa.internal.TransactionImpl.begin(TransactionImpl.java:45)
... 32 common frames omitted
2018-10-29 16:00:08,995 WARN pool-30-thread-1 org.hibernate.engine.jdbc.spi.SqlExceptionHelper - SQL Error: 0, SQLState: null
2018-10-29 16:00:08,996 ERROR pool-30-thread-1 org.hibernate.engine.jdbc.spi.SqlExceptionHelper - The connection is closed.
2018-10-29 16:30:00,017 INFO pool-13-threa
让应用程序正常工作的唯一方法是重启应用程序(容器重启)
我们在论坛上搜索并在我们的 application.yml 中设置了这个属性。
spring.datasource.tomcat.testOnBorrow=true
spring.datasource.tomcat.validation-query=SELECT 1
我们的应用程序 yml 如下所示。
spring:
datasource:
type: org.apache.tomcat.jdbc.pool.XADataSource
tomcat:
test-on-borrow: true
validation-query: select 1
validation-interval: 30000
jpa:
database: sql_server
database-platform: org.hibernate.dialect.SQLServer2012Dialect
generate-ddl: false
hibernate:
ddl-auto: none
我们在 yml 文件中有一个单独的部分，用于开发、暂存、生产环境。
我们正在为开发环境使用开发配置文件。这是否要求我们将 tomcat 属性放入此部分？
---
spring:
profiles: dev,staging,prod
datasource:
url: "jdbc:sqlserver://${DB_IP}:${DB_PORT};databaseName=${DB_NAME}"
username: "${DB_USER}"
password: "${DB_PASS}"
initialize: false
jpa:
show-sql: true
generate-ddl: false
hibernate:
ddl-auto: none
知道可以做些什么来解决这个问题。
谢谢。
最佳答案
请确保您的数据库运行在您在属性文件(.yaml或.properties).
org.springframework.transaction.CannotCreateTransactionException: Could not
open JPA EntityManager for transaction; nested exception is
javax.persistence.PersistenceException: com.microsoft.sqlserver.jdbc.SQLServerException:
The connection is closed.
如果您仔细观察您的异常并阅读消息，您将能够轻松识别问题。
此处堆栈跟踪显示 EntityManager 将无法初始化，因为连接已关闭。
Note : Please Verify that is your db is running or not ??
关于java - Spring Boot 应用程序在数据库重启时失败，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/53077180/