Spring 4.3.0.RELEASE + Hibernate 5.2.0.Final + JPA Repository： Spring4.3.0.RELEASE + Hibernate5.2.0.Final + JPA Repository。

Question

在使用Spring JPA时，我遇到了以下错误：

无法为事务打开JPA EntityManager；嵌套异常是java.lang.NoSuchMethodError: org.hibernate.Session.getFlushMode()Lorg/hibernate/FlushMode;

** 更新：完整的堆栈跟踪

在不同的项目中使用相同的配置可以正常工作

可能是什么原因？ 我正在使用Java 1.8和动态Web应用程序3.1（与正常工作的并行项目相同）

pom.xml:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>Test</groupId>
    <artifactId>Test</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <build>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <compilerArgument>-Xlint:all</compilerArgument>
                    <showWarnings>true</showWarnings>
                    <showDeprecation>true</showDeprecation>
                    <webXml>WebContent\WEB-INF\web.xml</webXml>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>1.2.1</version>
                <configuration>
                    <mainClass>org.test.int1.Main</mainClass>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3.0.RELEASE</version>
            <exclusions>
            <!-- Exclude Commons Logging in favor of SLF4j -->
                <exclusion>
                    <groupId>commons-logging</groupId>
                    <artifactId>commons-logging</artifactId>
                 </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.3.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>4.3.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.3.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
            <version>1.10.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
            <version>4.1.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>4.1.0.RELEASE</version>
        </dependency>

        <!-- Hibernate -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>5.1.0.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>5.2.0.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>5.3.0.Alpha1</version>
        </dependency>

        <!-- AspectJ -->
        <dependency>
            <groupId>aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.5.4</version>
        </dependency>

        <!-- Logging -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.21</version>
        </dependency>
            <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>1.7.21</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.21</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
            <exclusions>
                <exclusion>
                    <groupId>javax.mail</groupId>
                    <artifactId>mail</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>javax.jms</groupId>
                    <artifactId>jms</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.sun.jdmk</groupId>
                    <artifactId>jmxtools</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.sun.jmx</groupId>
                    <artifactId>jmxri</artifactId>
                </exclusion>
            </exclusions>
            <scope>runtime</scope>
        </dependency>

        <!-- Apache Commons DBCP -->
        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
        </dependency>

        <!-- Javax -->
        <dependency>
            <groupId>javax.transaction</groupId>
            <artifactId>jta</artifactId>
            <version>1.1</version>
        </dependency>

        <!-- Servlet -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

    </dependencies>

</project>

完整错误信息：

[16/08/16 10:41:57:057 IDT]  INFO web.DefaultSecurityFilterChain: Creating filter chain: org.springframework.security.web.util.matcher.AnyRequestMatcher@1, [org.springframework.security.web.context.SecurityContextPersistenceFilter@2b00cbc, org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@1e44b04e, org.springframework.security.web.header.HeaderWriterFilter@46828666, org.springframework.security.web.csrf.CsrfFilter@7d5376a4, org.springframework.security.web.authentication.logout.LogoutFilter@7f04505e, org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter@44f95930, org.springframework.security.web.authentication.www.BasicAuthenticationFilter@161a567f, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@709ae44e, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@2d41cca3, org.springframework.security.web.authentication.AnonymousAuthenticationFilter@23ff20e2, org.springframework.security.web.session.SessionManagementFilter@6792334c, org.springframework.security.web.access.ExceptionTranslationFilter@408d1364, org.springframework.security.web.access.intercept.FilterSecurityInterceptor@638afb02]
[16/08/16 10:41:57:057 IDT]  INFO http.DefaultFilterChainValidator: Checking whether login URL '/login' is accessible with your configuration
[16/08/16 10:41:57:057 IDT]  INFO startup.StartupDbDataInit: -------------------------------------------------------
[16/08/16 10:41:57:057 IDT]  INFO startup.StartupDbDataInit:          StartupDbDataInit Working - Starting...       
[16/08/16 10:41:57:057 IDT]  INFO startup.StartupDbDataInit: -------------------------------------------------------
[16/08/16 10:41:57:057 IDT] DEBUG internal.TransactionImpl: begin
[16/08/16 10:41:57:057 IDT] DEBUG internal.TransactionImpl: rolling back
[16/08/16 10:41:57:057 IDT] DEBUG internal.LogicalConnectionManagedImpl: Initiating JDBC connection release from afterTransaction
[16/08/16 10:41:57:057 IDT] DEBUG internal.LogicalConnectionManagedImpl: Initiating JDBC connection release from afterTransaction
[16/08/16 10:41:57:057 IDT]  INFO startup.StartupDbDataInit: StartupDbDataInit Failed!!!!!, Details=>>> Could not open JPA EntityManager for transaction; nested exception is java.lang.NoSuchMethodError: org.hibernate.Session.getFlushMode()Lorg/hibernate/FlushMode;
[16/08/16 10:41:57:057 IDT]  WARN support.XmlWebApplicationContext: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'startupDbDataInit': Invocation of init method failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.NoSuchMethodError: org.hibernate.Session.getFlushMode()Lorg/hibernate/FlushMode;
[16/08/16 10:41:57:057 IDT]  INFO jpa.LocalContainerEntityManagerFactoryBean: Closing JPA EntityManagerFactory for persistence unit 'default'
[16/08/16 10:41:57:057 IDT] DEBUG internal.SessionFactoryImpl: HHH000031: Closing
[16/08/16 10:41:57:057 IDT] DEBUG spi.CascadeStyles: External cascade style regsitration [persist : STYLE_PERSIST] overrode base registration [STYLE_PERSIST_SKIPLAZY]
[16/08/16 10:41:57:057 IDT] DEBUG internal.AbstractServiceRegistryImpl: Implicitly destroying ServiceRegistry on de-registration of all child ServiceRegistries
[16/08/16 10:41:57:057 IDT] DEBUG internal.BootstrapServiceRegistryImpl: Implicitly destroying Boot-strap registry on de-registration of all child ServiceRegistries
[16/08/16 10:41:57:057 IDT] ERROR context.ContextLoader: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'startupDbDataInit': Invocation of init method failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.NoSuchMethodError: org.hibernate.Session.getFlushMode()Lorg/hibernate/FlushMode;
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:136)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:408)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:775)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4842)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5303)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3858)
    at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:291)
    at org.apache.catalina.core.StandardContext.backgroundProcess(StandardContext.java:5660)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1376)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1380)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1380)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1348)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.NoSuchMethodError: org.hibernate.Session.getFlushMode()Lorg/hibernate/FlushMode;
    at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:431)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:427)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:276)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$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.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
    at com.sun.proxy.$Proxy83.count(Unknown Source)
    at com.test.startup.StartupDbDataInit.onApplicationInit(StartupDbDataInit.java:38)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:365)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:310)
    at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:133)
    ... 25 more
Caused by: java.lang.NoSuchMethodError: org.hibernate.Session.getFlushMode()Lorg/hibernate/FlushMode;
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.prepareFlushMode(HibernateJpaDialect.java:187)
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:173)
    at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380)
    ... 46 more

依赖树：tree

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Monitor 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The artifact aspectj:aspectjrt:jar:1.5.4 has been relocated to org.aspectj:aspectjrt:jar:1.5.4
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ Monitor ---
[WARNING] The artifact aspectj:aspectjrt:jar:1.5.4 has been relocated to org.aspectj:aspectjrt:jar:1.5.4
[INFO] Monitor:Monitor:war:0.0.1-SNAPSHOT
[INFO] +- org.springframework:spring-context:jar:4.3.0.RELEASE:compile
[INFO] |  +- org.springframework:spring-aop:jar:4.3.0.RELEASE:compile
[INFO] |  +- org.springframework:spring-beans:jar:4.3.0.RELEASE:compile
[INFO] |  +- org.springframework:spring-core:jar:4.3.0.RELEASE:compile
[INFO] |  \- org.springframework:spring-expression:jar:4.3.0.RELEASE:compile
[INFO] +- org.springframework:spring-webmvc:jar:4.3.0.RELEASE:compile
[INFO] +- org.springframework:spring-tx:jar:4.3.0.RELEASE:compile
[INFO] +- org.springframework:spring-web:jar:4.3.0.RELEASE:compile
[INFO] +- org.springframework.data:spring-data-jpa:jar:1.10.2.RELEASE:compile
[INFO] |  +- org.springframework.data:spring-data-commons:jar:1.12.2.RELEASE:compile
[INFO] |  \- org.springframework:spring-orm:jar:4.2.6.RELEASE:compile
[INFO] |     \- org.springframework:spring-jdbc:jar:4.2.6.RELEASE:compile
[INFO] +- org.springframework.security:spring-security-config:jar:4.1.0.RELEASE:compile
[INFO] |  +- aopalliance:aopalliance:jar:1.0:compile
[INFO] |  \- org.springframework.security:spring-security-core:jar:4.1.0.RELEASE:compile
[INFO] +- org.springframework.security:spring-security-web:jar:4.1.0.RELEASE:compile
[INFO] +- org.hibernate:hibernate-entitymanager:jar:5.2.2.Final:compile
[INFO] |  +- org.jboss.logging:jboss-logging:jar:3.3.0.Final:compile
[INFO] |  +- dom4j:dom4j:jar:1.6.1:compile
[INFO] |  +- org.hibernate.common:hibernate-commons-annotations:jar:5.0.1.Final:compile
[INFO] |  +- org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:1.0.0.Final:compile
[INFO] |  +- org.javassist:javassist:jar:3.20.0-GA:compile
[INFO] |  \- org.apache.geronimo.specs:geronimo-jta_1.1_spec:jar:1.1.1:compile
[INFO] +- org.hibernate:hibernate-core:jar:5.2.2.Final:compile
[INFO] |  +- antlr:antlr:jar:2.7.7:compile
[INFO] |  +- org.jboss:jandex:jar:2.0.0.Final:compile
[INFO] |  +- com.fasterxml:classmate:jar:1.3.0:compile
[INFO] |  \- javax.enterprise:cdi-api:jar:1.1:compile
[INFO] |     +- javax.el:el-api:jar:2.2:compile
[INFO] |     +- org.jboss.spec.javax.interceptor:jboss-interceptors-api_1.1_spec:jar:1.0.0.Beta1:compile
[INFO] |     +- javax.annotation:jsr250-api:jar:1.0:compile
[INFO] |     \- javax.inject:javax.inject:jar:1:compile
[INFO] +- org.hibernate:hibernate-validator:jar:5.3.0.Alpha1:compile
[INFO] |  \- javax.validation:validation-api:jar:1.1.0.Final:compile
[INFO] +- org.aspectj:aspectjrt:jar:1.5.4:compile
[INFO] +- org.slf4j:slf4j-api:jar:1.7.21:compile
[INFO] +- org.slf4j:jcl-over-slf4j:jar:1.7.21:runtime
[INFO] +- org.slf4j:slf4j-log4j12:jar:1.7.21:runtime
[INFO] +- log4j:log4j:jar:1.2.17:runtime
[INFO] +- commons-dbcp:commons-dbcp:jar:1.4:compile
[INFO] |  \- commons-pool:commons-pool:jar:1.5.4:compile
[INFO] +- javax.transaction:jta:jar:1.1:compile
[INFO] +- javax.servlet:javax.servlet-api:jar:3.1.0:provided
[INFO] +- javax.servlet.jsp:jsp-api:jar:2.2:compile
[INFO] +- javax.servlet:jstl:jar:1.2:compile
[INFO] +- org.jsoup:jsoup:jar:1.7.2:compile
[INFO] +- javax.mail:mail:jar:1.4.7:compile
[INFO] |  \- javax.activation:activation:jar:1.1:compile
[INFO] \- javax.mail:javax.mail-api:jar:1.5.5:compile
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.467 s
[INFO] Finished at: 2016-08-16T12:18:23+03:00
[INFO] Final Memory: 13M/245M
[INFO] ------------------------------------------------------------------------

- Guyb

---

可能是 spring-orm-4.2.6 不兼容 hibernate-orm-5.2.0 的重复问题。 - Neil Stockton

@NeilStockton 我正在使用XML配置和Spring 4.3，所以它不是Dup.. - Guyb

这是完全相同的错误。NoSuchMethodError已经足够明确了...不一致的库与XML无关。 - Neil Stockton

添加完整的堆栈跟踪。您发布的堆栈跟踪与您在开头提供的行没有任何关系。 - Jens

Answer 1

在Hibernate 5.2.0中，模块 hibernate-entitymanager 已被移除，并将其功能移到 hibernate-core 中。 因此，您可以删除hibernate-entitymanager依赖项（同时使用最新版本5.2.2）：

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>5.2.2.Final</version>
</dependency>

如果之后仍然出现相同的错误，可能是因为另一个依赖项仍然依赖于旧版本的 hibernate-entitymanager ，从而导致冲突。在这种情况下，请再次添加具有最新版本的hibernate-entitymanager：

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-entitymanager</artifactId>
    <version>5.2.2.Final</version>
</dependency>

另外，自从spring-data-jpa 1.10.2以来依赖于spring-orm 4.2.6，因此您应该添加正确版本的spring-orm显式依赖：

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-orm</artifactId>
    <version>4.3.0.RELEASE</version>
</dependency>

- dunni

---

我尝试了，但仍然出现相同的错误 :/ 即使我执行 "maven clean" 也是一样的。 - Guyb

请运行“mvn dependency:tree”并将输出添加到您的帖子中。如果帖子太长，您可以删除除pom.xml之外的所有示例。 - dunni

你是否确保在修改pom.xml后，Eclipse的类路径已经正确更新了？你似乎使用了不再支持的maven-eclipse-plugin，因此你应该使用Eclipse的Maven集成（m2e），它会自动处理这个问题。 - dunni

我需要走了：maven > build.. > dependency:tree > run？对吗？那么m2e是什么意思？只是删除插件吗？ - Guyb

所以，您已经在Eclipse中使用了Maven集成。然后，您可以从pom.xml中删除maven-eclipse-plugin，因为您似乎没有显式调用它。是的，在您的情况下这是运行dependency:tree的方法。 - dunni

Answer 2

您使用了不兼容的库。 hibernate 5 中 API 已更改:

getFlushMode() 方法已更名为 getHibernateFlushMode()

对于 Hibernate 原生 API 的用户，我们不得不将此方法重命名，因为 JPA 合同定义了一个同名方法， 但返回 JPA FlushModeType 而非 Hibernate 的 FlushMode。

- Jens

---

@Guyb 为什么你在 pom 文件中使用不同版本的 Hibernate？ - Jens

我读到这个版本的Hibernate支持Spring 4.3.x版本。完整的堆栈跟踪在问题的末尾。你是指这个吗？ - Guyb

@Guyb 你看到结尾的堆栈跟踪中有Could not open JPA EntityManager for transaction; nested exception is java.lang.NoSuchMethodError: org.hibernate.Session.getFlushMode()Lorg/hibernate/FlushMode;这一行吗？我没有看到。因此，它不能是完整的堆栈跟踪。 - Jens

@Guyb 你的意思是同一个异常吗？ - Jens

是的，它是相同的。 - Guyb

Answer 3

这看起来像是一个Jar冲突。 我正在使用Spring Framework 4.3.5.RELEASE版本，而我将Hibernate降级为hibernate-core-5.1.0.Final。 这对我有效。

- Aliti

Answer 4

以下组合对我来说很有效：

<properties>
  <project.mysql.connector.version>5.1.30</project.mysql.connector.version>
  <project.hibernate.version>5.2.2.Final</project.hibernate.version>
  <project.spring.orm.version>4.3.3.RELEASE</project.spring.orm.version>
  <project.spring.data.jpa.version>1.10.3.RELEASE</project.spring.data.jpa.version>
</properties>


<dependency>
   <groupId>mysql</groupId>
   <artifactId>mysql-connector-java</artifactId>
   <version>${project.mysql.connector.version}</version>
</dependency>
<dependency>
   <groupId>org.hibernate</groupId>
   <artifactId>hibernate-entitymanager</artifactId>
   <version>${project.hibernate.version}</version>
</dependency>
<dependency>
   <groupId>org.springframework.data</groupId>
   <artifactId>spring-data-jpa</artifactId>
   <version>${project.spring.data.jpa.version}</version>
</dependency>
<dependency>
   <groupId>org.springframework</groupId>
   <artifactId>spring-orm</artifactId>
   <version>${project.spring.orm.version}</version>
</dependency>

但是，在使用 MULTI-TENANCY（当前配置为 SCHEMA）时，它无法在尝试插入数据之前创建表，并抛出异常表不存在。我真的不想使用 SQL 导入，因为这会带走自动模式管理的所有好处。

- Arun S