“无法识别的 hbm2ddl_auto 值：更新”是什么意思

Question

 JPA cannot create table automatically with following error message:

(Please note, in particular, message extracted from below: “2019-09-18 06:01:52.776 WARN 12248 --- [main] ohbiSessionFactoryBuilderImpl: Unrecognized hbm2ddl_auto value: update. Supported values include create, create-drop, update, and validate. Ignoring”。)

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::       (v1.5.21.RELEASE)

2019-09-18 06:01:37.455  INFO 12248 --- [           main] c.s.mirrorworld.mirrorworldApplication   : Starting mirrorworldApplication on LAPTOP-FAS0SHLM with PID 12248 (C:\Users\yueho\eclipse-workspace\mirrorworld\target\classes started by yueho in C:\Users\yueho\eclipse-workspace\mirrorworld)
2019-09-18 06:01:37.466  INFO 12248 --- [           main] c.s.mirrorworld.mirrorworldApplication   : No active profile set, falling back to default profiles: default
2019-09-18 06:01:37.766  INFO 12248 --- [           main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@2f217633: startup date [Wed Sep 18 06:01:37 CST 2019]; root of context hierarchy
2019-09-18 06:01:43.613  INFO 12248 --- [           main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2019-09-18 06:01:43.662  INFO 12248 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
    name: default
    ...]
2019-09-18 06:01:43.955  INFO 12248 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate Core {5.0.12.Final}
2019-09-18 06:01:43.959  INFO 12248 --- [           main] org.hibernate.cfg.Environment            : HHH000206: hibernate.properties not found
2019-09-18 06:01:43.962  INFO 12248 --- [           main] org.hibernate.cfg.Environment            : HHH000021: Bytecode provider name : javassist
2019-09-18 06:01:44.282  INFO 12248 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2019-09-18 06:01:51.899  INFO 12248 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect

2019-09-18 06:01:52.776 WARN 12248 --- [ main] ohbiSessionFactoryBuilderImpl: Unrecognized hbm2ddl_auto value: update. Supported values include create, create-drop, update, and validate. Ignoring 2019-09-18 06:01:53.639 INFO 12248 --- [ main] j.LocalContainerEntityManagerFactoryBean: Initialized JPA EntityManagerFactory for persistence unit 'default' 2019-09-18 06:01:58.151 INFO 12248 --- [ main] osjeaAnnotationMBeanExporter: Registering beans for JMX exposure on startup 2019-09-18 06:01:58.180 INFO 12248 --- [ main] c.s.mirrorworld.mirrorworldApplication: Started mirrorworldApplication in 21.641 seconds (JVM running for 23.004) 2019-09-18 06:02:20.999 INFO 12248 --- [WT-EventQueue-0] ohhiQueryTranslatorFactoryInitiator: HHH000397: Using ASTQueryTranslatorFactory Hibernate: select unit_quant0_.id as id1_18_, unit_quant0_.formula as formula2_18_, unit_quant0_.name as name3_18_, unit_quant0_.symbol as symbol4_18_, unit_quant0_.unit_quantity_type as unit_qua5_18_ from unit_quantity unit_quant0_ where unit_quant0_.id=? 2019-09-18 06:02:21.607 WARN 12248 --- [WT-EventQueue-0] ohengine.jdbc.spi.SqlExceptionHelper: SQL Error: 1146, SQLState: 42S02 2019-09-18 06:02:21.607 ERROR 12248 --- [WT-EventQueue-0] ohengine.jdbc.spi.SqlExceptionHelper: Table 'mirrorworld.unit_quantity' doesn't exist Exception in thread "AWT-EventQueue-0" javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not extract ResultSet at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1692) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1602) at org.hibernate.jpa.internal.QueryImpl. getResultList(QueryImpl.java:492) 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.orm.jpa.SharedEntityManagerCreator$DeferredQueryInvocationHandler.invoke(SharedEntityManagerCreator.java:375) at com.sun.proxy.$Proxy86.getResultList(Unknown Source) at com.stepforward.mirrorworld.p2_base_bean.Thing_Persistence_Service.Simply_get_thing_list(Thing_Persistence_Service.java:498) at Z4D236D9A2D102C5FE6AD1C50DA 4BEC50Z.stepforward.mirrorworld.p2_base_bean.Thing_Persistence_Service.Get_thing_list_simpler_query_string(Thing_Persistence_Service.java:461) at com.stepforward.mirrorworld.p3_application_bean.Thing.Thing_Aspect.Verify_component_value_duplication_checking(Thing_Aspect.java:290) at com.stepforward.mirrorworld.p3_application_bean.Thing.Thing_Aspect.Verify_component_value(Thing_Aspect.java:157) at com.stepforward.mirrorworld.p3_application_bean.Thing.Thing_Aspect.Verify_component_values(Thing_Aspect.java:116) at com.stepforward.mirrorworld.p3_application_bean.Thing.Thing_Aspect.Verify_component_values_before_saving(Thing_Aspect.java:74) at com.stepforward.mirrorworld.p2_base_bean.Thing_Li st_Service.Save_thing_list(Thing_List_Service.java:470) at com.stepforward.mirrorworld.p2_base_bean.Thing_List_Service.Manage_user_intention(Thing_List_Service.java:68) at com.stepforward.mirrorworld.p2_base_bean.Thing_Editor_Dispatcher.Manage_user_intention(Thing_Editor_Dispatcher.java:28) at com.stepforward.mirrorworld.p4_view.Listener_Thing_List_Editor_View_Button.actionPerformed(Listener_Thing_List_Editor_View_Button.java:38) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348) at javax.swing.DefaultButtonModel.fireActionPerfor med(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) at java.awt.Component.processMouseEvent(Component.java:6533) at javax.swing.JComponent.processMouseEvent(JComponent.java:3324) at java.awt.Component.processEvent(Component.java:6298) at java.awt.Container.processEvent(Container.java:2236) at java.awt.Component.dispatchEventImpl(Component.java:4889) at java.awt.Container.disp atchEventImpl(Container.java:2294) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466) at java.awt.Container.dispatchEventImpl(Container.java:2280) at java.awt.Window.dispatchEventImpl(Window.java:2746) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt .EventQueue.dispatchEventImpl(EventQueue.java:758) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue$4.run(EventQueue.java:731) at java.awt.EventQu eue$4.run(EventQueue.java:729) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:10 1) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) Caused by: org.hibernate.exception.SQLGrammarException: could not extract ResultSet at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:63) at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelp er.java:95) at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:79) at org.hibernate.loader.Loader.getResultSet(Loader.java:2117) at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1900) at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1876) at org.hibernate.loader.Loader.doQuery(Loader.java:919) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:336) at org.hibernate.loader.Loader.doList(Loader.java:2617) at org.hibernate.loa der.Loader.doList(Loader.java:2600) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2429) at org.hibernate.loader.Loader.list(Loader.java:2424) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:501) 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:1326) at org.hibernate.internal.QueryImpl.list(QueryImpl.java:87) at org.hibernate.ZF0B4A299C45171493A E3215D69D9B0A6Z.internal.QueryImpl.list(QueryImpl.java:606) at org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:483)... 52 more Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'mirrorworld.unit_quantity' doesn't exist at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.Z81C3B080DAD537DE7E10E0987A4BF52E Z.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.Util.getInstance(Util.java:408) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:944) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3978) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3914) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2495) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1903) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2011) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Delegati ngMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tomcat.jdbc.pool.StatementFacade$StatementProxy.invoke(StatementFacade.java:114) at com.sun.proxy.$Proxy87.executeQuery(Unknown Source) at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:70)... 68 more Hibernate: select unit_quant0_.id as id1_18_, unit_quant0_.formula as formula2_18_, unit_quant0_.name as name3_18_, unit_quant0_.symbol as symbol4_18_, unit_quant0_.unit_quantity_type as unit_qua5_18_ from unit_quantity unit_quant0_ where unit_quant0_.id=? 2019-09-18 06:02:22.120 WARN 12248 --- [WT-EventQueue-0] ohengine.jdbc.spi.SqlExceptionHelper: SQL Error: 1146, SQLState: 42S02 2019-09-18 06:02:22.121 ERROR 12248 --- [WT-EventQueue-0] ohengine.jdbc.spi.SqlExceptionHelper: Table 'mirrorworld.unit_quantity' doesn't exist Exception in thread "AWT-EventQueue-0" javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not extract ResultSet at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1692) at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1602) at org.hibernate.jpa.internal.QueryImpl. getResultList(QueryImpl.java:492) 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.orm.jpa.SharedEntityManagerCreator$DeferredQueryInvocationHandler.invoke(SharedEntityManagerCreator.java:375) at com.sun.proxy.$Proxy86.getResultList(Unknown Source) at com.stepforward.mirrorworld.p2_base_bean.Thing_Persistence_Service.Simply_get_thing_list(Thing_Persistence_Service.java:498) at Z4D236D9A2D102C5FE6AD1C50DA 4BEC50Z.stepforward.mirrorworld.p2_base_bean.Thing_Persistence_Service.Get_thing_list_simpler_query_string(Thing_Persistence_Service.java:461) at com.stepforward.mirrorworld.p3_application_bean.Thing.Thing_Aspect.Verify_component_value_duplication_checking(Thing_Aspect.java:290) at com.stepforward.mirrorworld.p3_application_bean.Thing.Thing_Aspect.Verify_component_value(Thing_Aspect.java:157) at com.stepforward.mirrorworld.p3_application_bean.Thing.Thing_Aspect.Verify_component_values(Thing_Aspect.java:116) at com.stepforward.mirrorworld.p3_application_bean.Thing.Thing_Aspect.Verify_component_values_before_saving(Thing_Aspect.java:74) at com.stepforward.mirrorworld.p2_base_bean.Thing_Li st_Service.Save_thing_list(Thing_List_Service.java:470) at com.stepforward.mirrorworld.p2_base_bean.Thing_List_Service.Manage_user_intention(Thing_List_Service.java:68) at com.stepforward.mirrorworld.p2_base_bean.Thing_Editor_Dispatcher.Manage_user_intention(Thing_Editor_Dispatcher.java:28) at com.stepforward.mirrorworld.p4_view.Listener_Thing_List_Editor_View_Button.actionPerformed(Listener_Thing_List_Editor_View_Button.java:38) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348) at javax.swing.DefaultButtonModel.fireActionPerfor med(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) at java.awt.Component.processMouseEvent(Component.java:6533) at javax.swing.JComponent.processMouseEvent(JComponent.java:3324) at java.awt.Component.processEvent(Component.java:6298) at java.awt.Container.processEvent(Container.java:2236) at java.awt.Component.dispatchEventImpl(Component.java:4889) at java.awt.Container.disp atchEventImpl(Container.java:2294) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466) at java.awt.Container.dispatchEventImpl(Container.java:2280) at java.awt.Window.dispatchEventImpl(Window.java:2746) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt .EventQueue.dispatchEventImpl(EventQueue.java:758) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue$4.run(EventQueue.java:731) at java.awt.EventQu eue$4.run(EventQueue.java:729) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:10 1) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) Caused by: org.hibernate.exception.SQLGrammarException: could not extract ResultSet at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:63) at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelp er.java:95) at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:79) at org.hibernate.loader.Loader.getResultSet(Loader.java:2117) at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1900) at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1876) at org.hibernate.loader.Loader.doQuery(Loader.java:919) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:336) at org.hibernate.loader.Loader.doList(Loader.java:2617) at org.hibernate.loa der.Loader.doList(Loader.java:2600) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2429) at org.hibernate.loader.Loader.list(Loader.java:2424) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:501) 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:1326) at org.hibernate.internal.QueryImpl.list(QueryImpl.java:87) at org.hibernate.ZF0B4A299C45171493A E3215D69D9B0A6Z.internal.QueryImpl.list(QueryImpl.java:606) at org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:483)... 52 more Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'mirrorworld.unit_quantity' doesn't exist at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.Z81C3B080DAD537DE7E10E0987A4BF52E Z.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.Util.getInstance(Util.java:408) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:944) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3978) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3914) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2495) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1903) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2011) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Delegati ngMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tomcat.jdbc.pool.StatementFacade$StatementProxy.invoke(StatementFacade.java:114) at com.sun.proxy.$Proxy87.executeQuery(Unknown Source) at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:70)... 68 more 2019-09-18 06:02:23.818 INFO 12248 --- [ Thread-4] s.c.a.AnnotationConfigApplicationContext: Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@2f217633: startup date [Wed Sep 18 06:01:37 CST 2019]; root of context hierarchy 2019-09-18 06:02:23.821 INFO 12248 --- [ Thread-4] osjeaAnnotationMBeanExporter: Unregistering JMX-exposed beans on shutdown 2019-09-18 06:02:23.849 INFO 12248 --- [ Thread-4] j.LocalContainerEntityManagerFactoryBean: Closing JPA EntityManagerFactory for persistence unit 'default'

1.APPLICATION PROPERTIES ============================

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/mirrorworld
spring.datasource.username=root
spring.datasource.password=mirror
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.max-idle=10
spring.datasource.max-wait=10000
spring.datasource.min-idle=5
spring.datasource.initial-size=5
server.port=8011
server.session.timeout=10
server.tomcat.uri-encoding=UTF-8
spring.jpa.database=MYSQL
spring.jpa.show-sql=true
spring.jpa.hibernate.format_sql=false
spring.jpa.generate-ddl=true  
spring.jpa.hibernate.ddl-auto=update  
spring.jpa.hibernate.naming_strategy=org.hibernate.cfg.ImprovedNamingStrategy  
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

2.SPRINGBOOTAPPLICATION ================

@EntityScan
(   basePackages = 
{
    "com.stepforward.mirrorworld.p3_application_bean.Unit"
}
)
@EnableJpaRepositories
(
    basePackages = 
{
    "com.stepforward.mirrorworld.p3_application_bean.Unit"
}
)

@SpringBootApplication
public class mirrorworldApplication
{
......
}

**3.ENTITY**
============

@Entity
public class Unit_Quantity extends Thing 
{
    @Id
    @GenericGenerator(name="assigned", strategy="assigned")
    @GeneratedValue(generator="assigned")
    @Column(nullable=false,length=100)
    private String Id;  
    @Column(nullable=false,length=150)
    private String Name;
    @Column(nullable=false,length=20)
    private String Unit_Quantity_Type;
    @Column(nullable=false,length=20)
    private String Symbol;
    @Column(nullable=true,length=100)
    private String Formula; 
    ......
    }