Java Hibernmate+；Postgres在第一次运行时创建表

我有一个小应用程序，如果不存在，我希望hibernate创建表。我已经完成了所有需要的注释（我想）和mi hibernate.cfg.xml，但是当我运行测试以查看dao方法是否正确时，hibernate会向我显示一个异常，说明关系不存在。当我检查数据库时，没有表

我想知道这是使hibernate自动创建表的一种方法，还是必须向代码中添加一些新代码或属性

hibernate.cfg.xml

   <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>

        <!-- SQL Dialect -->
        <property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property>

    <!-- Connection Settings -->
        <property name="connection.driver_class">org.postgresql.Driver</property>
        <property name="connection.url">jdbc:postgresql://localhost:5432/tour_bi</property>
        <property name="connection.username">xxx</property>
        <property name="connection.password">xxx</property>


        <property name="current_session_context_class">thread</property>

        <!-- SQL to stdout -->
        <property name="show_sql">true</property>

        <!-- Update database on startup -->
        <property name="hbm2dll.auto">create</property>



        <!-- Annotated entity classes -->
        <mapping class="domain.Car_Type"/>
        <mapping class="domain.Car"/>
        <mapping class="domain.Client"/>
        <mapping class="domain.Country"/>
        <mapping class="domain.Guide"/>
        <mapping class="domain.Imagen"/>
        <mapping class="domain.Languaje"/>
        <mapping class="domain.Province"/>
        <mapping class="domain.Stop"/>
        <mapping class="domain.System"/>
        <mapping class="domain.Tour_Type"/>
        <mapping class="domain.System"/>
        <mapping class="domain.Tour"/>

    </session-factory>
</hibernate-configuration>

这是登录控制台

 log4j:WARN Please initialize the log4j system properly.
   06:06:29.838 [main] INFO org.hibernate.annotations.common.Version - Hibernate Commons Annotations         3.2.0.Final
   06:06:31.101 [main] INFO org.hibernate.validator.util.Version - Hibernate Validator 4.0.2.GA
   06:06:31.105 [main] DEBUG org.hibernate.validator.engine.ResourceBundleMessageInterpolator -       ValidationMessages not found. Delegating to org.hibernate.validator.ValidationMessages
   06:06:31.110 [main] DEBUG org.hibernate.validator.engine.resolver.DefaultTraversableResolver -    Found javax.persistence.PersistenceUtil on classpath.
   06:06:31.112 [main] INFO org.hibernate.validator.engine.resolver.DefaultTraversableResolver -    Instantiated an instance of org.hibernate.validator.engine.resolver.JPATraversableResolver.
   06:06:31.116 [main] DEBUG org.hibernate.validator.xml.ValidationXmlParser - No META-INF/validation.xml found. Using annotation based configuration only
   06:06:31.196 [main] DEBUG org.hibernate.validator.engine.ResourceBundleMessageInterpolator - ValidationMessages not found. Delegating to org.hibernate.validator.ValidationMessages
   06:06:31.196 [main] DEBUG org.hibernate.validator.engine.resolver.DefaultTraversableResolver -    Found javax.persistence.PersistenceUtil on classpath.
   06:06:31.197 [main] INFO org.hibernate.validator.engine.resolver.DefaultTraversableResolver -    Instantiated an instance of org.hibernate.validator.engine.resolver.JPATraversableResolver.
   06:06:31.203 [main] DEBUG org.hibernate.validator.xml.ValidationXmlParser - No META-   INF/validation.xml found. Using annotation based configuration only
   Creando Autos
   Hibernate: select nextval ('hibernate_sequence')
   Hibernate: insert into car_type (active, type, _id) values (?, ?, ?)

没有什么说hibernate正在创建任何表，它完全可以创建对象 在我的测试日志中：

    org.hibernate.exception.SQLGrammarException: ERROR: no existe la relación «car_type»
  Position: 13
    at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:122)
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:47)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:129)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
    at com.sun.proxy.$Proxy18.executeUpdate(Unknown Source)
    at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:56)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2849)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3290)
    at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:80)
    at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:272)
    at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:264)
    at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:186)
    at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326)
    at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
    at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1081)
    at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:315)
    at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
    at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
    at test.TestDB.createCarTYpe(TestDB.java:98)
    at test.TestDB.crudTest(TestDB.java:28)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:305)
    at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:365)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
    at org.junit.runners.ParentRunner$4.run(ParentRunner.java:330)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:78)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:328)
    at org.junit.runners.ParentRunner.access$100(ParentRunner.java:65)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:292)
    at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:305)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:412)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:89)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:541)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:763)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:463)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:209)
Caused by: org.postgresql.util.PSQLException: ERROR: no existe la relación «car_type»
  Position: 13
    at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2505)
    at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2241)
    at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:310)
    at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:447)
    at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:368)
    at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:158)
    at org.postgresql.jdbc.PgPreparedStatement.executeUpdate(PgPreparedStatement.java:124)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:122)
    ... 43 more

我正在使用tomcat服务器9。我需要在我的tomcat上更新web.xml吗

更新此设置：

 <property name="hbm2dll.auto">create</property>

创建

致：

更新

更新此设置：

 <property name="hbm2dll.auto">create</property>

创建

致：

更新

---

谢谢你的回答。我已经尝试过更新，但是没有任何结果谢谢你的回答。我已经尝试过更新，但没有任何结果

 <property name="hbm2dll.auto">create</property>

 <property name="hbm2dll.auto">update</property>