hibernate - 使用 hibernate、hibernate 注释和 ehcache 的 Maven 依赖项是什么？

Question

我想用最新的 hibernate、hibernate-annotations 和 ehcache 依赖项更新我的 Maven pom.xml。

我阅读了 hibernate 下载页面和 ehcache 下载页面。我所有试图解释它的尝试似乎都失败了。有人可以写出应该进入 pom.xml 的片段吗？

神秘的 hibernate 下载页面:
http://hibernate.org/downloads

神秘的ehcache下载页面:
http://www.terracotta.org/dl/ehcache-oss-download-catalog

这是我到目前为止所拥有的:

   <properties>
       <hibernate.version>3.6.0.Final</hibernate.version>
   </properties>
   <dependencies>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>${hibernate.version}</version>
        <exclusions>
            <exclusion>
                <groupId>javax.transaction</groupId>
                <artifactId>jta</artifactId>
            </exclusion>
            <exclusion>
                <groupId>net.sf.ehcache</groupId>
                <artifactId>ehcache</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-ehcache</artifactId>
        <version>${hibernate.version}</version>
        <exclusions>
            <exclusion>
                <groupId>net.sf.ehcache</groupId>
                <artifactId>ehcache</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>net.sf.ehcache</groupId>
        <artifactId>ehcache</artifactId>
        <version>2.2.0</version>
        <type>pom</type>
    </dependency>
 </dependencies>

    <repositories>
        <repository>
            <id>codehaus-repository</id>
            <name>Codehaus</name>
            <url>https://nexus.codehaus.org/content/repositories/releases/</url>
            <layout>default</layout>
        </repository>
        <repository>
            <id>java.net</id>
            <url>http://download.java.net/maven/1</url>
            <layout>legacy</layout>
        </repository>
        <repository>
            <id>central</id>
            <name>Maven Repository Switchboard</name>
            <layout>default</layout>
            <url>http://repo1.maven.org/maven2</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
        <repository>
            <id>sonatype-ehcache</id>
            <url>http://oss.sonatype.org/content/repositories/sourceforge-releases</url>
            <layout>default</layout>
        </repository>
        <repository>
            <id>JBoss Repository</id>
            <url>https://repository.jboss.org/nexus/content/groups/public</url>
            <layout>default</layout>
        </repository>
    </repositories>

我知道，它看起来像一团糟，因为我似乎不知道所有依赖项都存储在哪里。

以上失败:

Invocation of init method failed; nested exception is java.lang.NullPointerException
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)

更新:
帕斯卡，你的回复很清楚，解释得很好。但是，hibernate 在启动时仍然失败。

sl4j 抛出错误，通过添加:

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>1.6.1</version>
</dependency>

这个警告有很多例子:

g in the two-phase commit!
1797 [main] WARN  net.sf.ehcache.hibernate.AbstractEhcacheRegionFactory  - No Tr
ansactionManagerLookup found in Hibernate config, XA Caches will be participatin

此外，此错误会使一切都失败:

相关原因:

org.springframework.beans.factory.BeanCreationException: Error creating bean wit
h name 'financialDAO' defined in ServletContext resource [/WEB-INF/config/applic
ationContext-database.xml]: Cannot resolve reference to bean 'transactionManager
' while setting bean property 'transactionManager'; nested exception is org.spri
ngframework.beans.factory.BeanCreationException: Error creating bean with name '
transactionManager' defined in ServletContext resource [/WEB-INF/config/applicat
ionContext-database.xml]: Cannot resolve reference to bean 'sessionFactory' whil
e setting bean property 'sessionFactory'; nested exception is org.springframewor
k.beans.factory.BeanCreationException: Error creating bean with name 'sessionFac
tory' defined in ServletContext resource [/WEB-INF/config/applicationContext-dat
abase.xml]: Invocation of init method failed; nested exception is java.lang.Null
PointerException
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver
.resolveReference(BeanDefinitionValueResolver.java:328)

确认一下，这是 Spring 配置:

<!-- Enable EHCache -->
<prop key="hibernate.cache.use_second_level_cache">true</prop>
<prop key="hibernate.cache.use_query_cache">false</prop>
<prop key="hibernate.cache.region.factory_class">net.sf.ehcache.hibernate.EhCacheRegionFactory</prop>
<prop key="net.sf.ehcache.configurationResourceName">/ehcache.xml</prop>

更新:
这似乎是 hibernate 卡住的最新异常:

Caused by: java.lang.NullPointerException
    at net.sf.ehcache.hibernate.HibernateUtil.loadAndCorrectConfiguration(HibernateUtil.java:48)
    at net.sf.ehcache.hibernate.EhCacheRegionFactory.start(EhCacheRegionFactory.java:79)
    at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:236)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1842)
    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:855)
    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:774)
    at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1469)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1409)

Answer 1

如果您真的指的是 hibernate-annotations(而不是 hibernate-entitymanager)和 ehcache 的最终版本，那么您将需要以下内容:

<project>
  ...
  <dependencies>
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-core</artifactId>
      <version>3.6.0.Final</version>
    </dependency>
    <dependency>
       <groupId>net.sf.ehcache</groupId>
       <artifactId>ehcache-core</artifactId>
       <version>2.2.0</version>
   </dependency>
   ...
  </dependencies>

  <repositories>
    <repository>
      <id>repository.jboss.org-public</id>
      <name>JBoss repository</name>
      <url>https://repository.jboss.org/nexus/content/groups/public</url>
    </repository>
  </repositories>
  ...
</project>

从 Hibernate 3.6 开始，JDK 1.4 支持已被删除，Hibernate Annotations 已合并回 Core。

我的意思是 Hibernate EntityManager，然后替换 hibernate-core通过 hibernate-entitymanager在上面的片段中。

关于 EHCache， ehcache-core应该提供您需要的一切(包括"new" Hibernate 3.3/3.5 caching SPI 及其 CacheRegionFactory 的实现)。所以，作为 documented :

Setting Ehcache as the Hibernate Second Level Cache

Hibernate 3.3 and higher

ATTENTION HIBERNATE 3.2 USERS

Make sure to note the change to BOTH the property name and value.

Use:

<property name="hibernate.cache.region.factory_class">
          net.sf.ehcache.hibernate.EhCacheRegionFactory</property>

for instance creation, or

<property name="hibernate.cache.region.factory_class">
          net.sf.ehcache.hibernate.SingletonEhCacheRegionFactory</property>

to force Hibernate to use a singleton of Ehcache CacheManager.

跟进:要回答您的更新:

sl4j threw errors, which went away by adding (...)

好吧，我猜不出您使用的是什么日志框架，提供您选择的绑定(bind)作为练习留给读者:)

There are many instances of this warning (...)

我只有一个 WARNING 在非 JTA 环境中运行时。如果这是您的情况(非 JTA 环境)，我会考虑 WARNING像平常一样。如果这不是您的情况，请查看有关 JTA 的文档。 .

Additionally, this error makes everything fail

这是一个不同的问题(但看起来 SessionFactory 无法正确初始化，激活日志以查看原因)，我建议发布一个新的 spring 特定问题。