java - Hibernate + c3p0 Pool + ehcache 启动失败

标签 java hibernate ehcache c3p0

我有一个 JavaFX 应用程序，在我添加 2° 缓存(带有区域的 ehcache)之前它可以正常工作。之后，我启动应用程序，但在尝试创建 session 工厂时收到此错误:

08/10/2014 20:01:40 DEBUG Configuration:1841 - Preparing to build session factory with filters : {}
08/10/2014 20:01:40 INFO  ConnectionProviderInitiator:190 - HHH000130: Instantiating explicit connection provider: org.hibernate.connection.C3P0ConnectionProvider
Exception in Application start method java.lang.reflect.InvocationTargetException

这些是我的文件(我省略了私有(private)数据):

hibernate.cfg:

<property name="javax.persistence.validation.mode">none</property>
<property name="connection.release_mode">auto</property>
<property name="current_session_context_class">thread</property>
<property name="connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property>
<property name="show_sql">false</property>
<property name="format_sql">false</property>
<property name="hibernate.temp.use_jdbc_metadata_defaults">false</property>
<property name="hibernate.c3p0.acquire_increment">1</property>
<property name="hibernate.c3p0.min_size">5</property>
<property name="hibernate.c3p0.max_size">20</property>
<property name="hibernate.c3p0.timeout">3000</property>
<property name="hibernate.c3p0.max_statements">50</property>
<property name="hibernate.c3p0.idle_test_period">300</property>
<property name="hibernate.cache.use_second_level_cache">true</property>
<property name="hibernate.cache.use_query_cache">true</property>
<!-- If I remove this line, I get an error which said something like region name is not defined --->
<property name="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory</property>

POM

<?xml version="1.0" encoding="UTF-8"?>
<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">
<repositories>
    <repository>
        <id>terracotta-releases</id>
        <url>http://www.terracotta.org/download/reflector/releases</url>
        <releases>
            <enabled>true</enabled>
        </releases>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </repository>
</repositories>
<dependencies>
    <dependency>       
        <groupId>net.sf.ehcache</groupId>
        <artifactId>ehcache</artifactId>
        <version>2.8.4</version>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-ehcache</artifactId>
        <version>4.3.6.Final</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.33</version>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-api</artifactId>
        <version>2.0.2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</artifactId>
        <version>2.0.2</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>4.3.6.Final</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>4.3.6.Final</version>
    </dependency>        
    <dependency>
        <groupId>org.hibernate.common</groupId>
        <artifactId>hibernate-commons-annotations</artifactId>
        <version>4.0.5.Final</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.hibernate.javax.persistence</groupId>
        <artifactId>hibernate-jpa-2.1-api</artifactId>
        <version>1.0.0.Final</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-c3p0</artifactId>
        <version>4.3.6.Final</version>
    </dependency>
    <dependency>
        <groupId>org.jboss.logging</groupId>
        <artifactId>jboss-logging</artifactId>
        <version>3.1.4.GA</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.7.7</version>
    </dependency>
    <dependency>
        <groupId>dom4j</groupId>
        <artifactId>dom4j</artifactId>
        <version>1.6.1</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>xml-apis</groupId>
        <artifactId>xml-apis</artifactId>
        <version>2.0.2</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
</dependencies>
</project>

ehcache.xml

<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="ehcache.xsd"
         updateCheck="true" monitoring="autodetect"
         dynamicConfig="true">


    <diskStore path="java.io.tmpdir"/>

    <defaultCache
        maxEntriesLocalHeap="10000"
        eternal="false"
        timeToIdleSeconds="120"
        timeToLiveSeconds="120"
        diskSpoolBufferSizeMB="30"
        maxEntriesLocalDisk="10000000"
        diskExpiryThreadIntervalSeconds="120"
        memoryStoreEvictionPolicy="LRU"
        statistics="false">
        <persistence strategy="localTempSwap"/>
    </defaultCache>

    <cache name="region1"
           maxEntriesLocalHeap="10000"
           maxEntriesLocalDisk="1000"
           eternal="false"
           diskSpoolBufferSizeMB="20"
           timeToIdleSeconds="300"
           timeToLiveSeconds="600"
           memoryStoreEvictionPolicy="LFU"
           transactionalMode="off">
        <persistence strategy="localTempSwap"/>
    </cache>

</ehcache>

hibernateUtil

import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;

public enum Util {
      INSTANCE;
     private final SessionFactory sessionFactory;

    private Util() {
        Configuration configuration;
        StandardServiceRegistryBuilder builder;

        configuration = new Configuration().configure();
        builder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());
        sessionFactory = configuration.buildSessionFactory(builder.build());
    }

    public static Util getInstance() {
        return INSTANCE;
    }

    public SessionFactory getSessionFactory() {
        return sessionFactory;
    }

}

当我尝试调试时，停在 sessionFactory = configuration.buildSessionFactory(builder.build());因为 session 返回为空。但如果我删除池， session 就可以工作。

此外，在所有 *.hbm.xml 文件上，我通过输入 <cache usage="nonstrict-read-write" region="region1"/> 设置缓存。如果我删除区域，则会启动，但会收到错误，因为我没有定义区域并且 hibernate 采用默认名称。

最佳答案

最后，我自己解决了这个问题。答案如下:

hibernate .cfg

    <!-- Pool -->
    <property name="hibernate.c3p0.min_size">5</property>
    <property name="hibernate.c3p0.max_size">20</property>
    <property name="hibernate.c3p0.timeout">3000</property>
    <property name="hibernate.c3p0.max_statements">50</property>
    <property name="hibernate.c3p0.idle_test_period">300</property>
    <property name="connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property>
    <!-- Cache -->
    <property name="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</property>
    <property name="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory</property>
    <property name="hibernate.cache.use_second_level_cache">true</property>
    <property name="hibernate.cache.use_query_cache">true</property>
    <property name="net.sf.ehcache.configurationResourceName">/ehcache.xml</property>

注意:如果您在 sessionFactory 类中使​​用单例，则使用 SingletonEhCacheRegionFactory 类，如果没有，则使用 org.hibernate.cache.ehcache.EhCacheRegionFactory。

一些最新的依赖项版本不能很好地与上述配置配合使用，因此在某些情况下我需要使用以前的版本。

<dependencies>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-ehcache</artifactId>
        <version>4.3.6.Final</version>
        <exclusions>
            <exclusion>
                <groupId>net.sf.ehcache</groupId>
                <artifactId>ehcache-core</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>net.sf.ehcache</groupId>
        <artifactId>ehcache</artifactId>
        <version>2.8.2</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.33</version>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-api</artifactId>
        <version>2.0.2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</artifactId>
        <version>2.0.2</version>
    </dependency>
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>mchange-commons-java</artifactId>
        <version>0.2.7</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>4.3.6.Final</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>4.3.6.Final</version>
    </dependency>        
    <dependency>
        <groupId>org.hibernate.common</groupId>
        <artifactId>hibernate-commons-annotations</artifactId>
        <version>4.0.5.Final</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.hibernate.javax.persistence</groupId>
        <artifactId>hibernate-jpa-2.1-api</artifactId>
        <version>1.0.0.Final</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-c3p0</artifactId>
        <version>4.3.5.Final</version>
    </dependency>
    <dependency>
        <groupId>org.jboss.logging</groupId>
        <artifactId>jboss-logging</artifactId>
        <version>3.1.4.GA</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.7.7</version>
    </dependency>
    <dependency>
        <groupId>dom4j</groupId>
        <artifactId>dom4j</artifactId>
        <version>1.6.1</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.2</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.jboss.logging</groupId>
        <artifactId>jboss-logging-annotations</artifactId>
        <version>1.2.0.Final</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>org.jboss.spec.javax.transaction</groupId>
        <artifactId>jboss-transaction-api_1.2_spec</artifactId>
        <version>1.0.0.Final</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.2.1</version>
        <scope>compile</scope>
        <type>jar</type>
    </dependency>

以及带有缓存配置的ehcache.xml:

<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="ehcache.xsd"
         updateCheck="true" monitoring="autodetect"
         dynamicConfig="true">

    <diskStore path="java.io.tmpdir/ehcache" />

    <defaultCache maxEntriesLocalHeap="10000" eternal="false"
                  timeToIdleSeconds="120" timeToLiveSeconds="120" diskSpoolBufferSizeMB="30"
                  maxEntriesLocalDisk="10000000" diskExpiryThreadIntervalSeconds="120"
                  memoryStoreEvictionPolicy="LRU" statistics="true">
        <persistence strategy="localTempSwap" />
    </defaultCache>

    <cache name="org.hibernate.cache.internal.StandardQueryCache"
           maxEntriesLocalHeap="5" eternal="false" timeToLiveSeconds="120">
        <persistence strategy="localTempSwap" />
    </cache>

    <cache name="org.hibernate.cache.spi.UpdateTimestampsCache"
           maxEntriesLocalHeap="5000" eternal="true">
        <persistence strategy="localTempSwap" />
    </cache>
</ehcache>

注意:此文件工作正常，但日志报告警告，因为我没有为当前 bean 指定缓存，因此缓存采用默认配置。另外，我收到一些关于 mcach 找不到的 mchange 依赖文件的警告，但实际上这不是一个错误，所以不用担心这种警告。

关于java - Hibernate + c3p0 Pool + ehcache 启动失败，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/26263861/

上一篇：java - 单击链接 Selenium 后如何驱动浏览器窗口的新实例

下一篇：Java 作用域问题

相关文章：

java - Java 8 中的条件 lambda 执行

java - 为什么 Collections.frequency 在转换后的列表上没有按预期工作？

hibernate - @Cache 注释使用错误

grails - 使用共享缓存和 session 部署多个 Grails 实例？

java - 无法解析对 bean 'cacheManager' 的引用

java - 使用 @inject 和 applicationContext.xml 进行注入(inject)的区别

java - 如何让每个切换按钮执行不同的操作？

java - 如何在加载数据时检查 Hibernate 是否正在使用数据库索引

java - 计数 (*) 位于另一个计数 (*) 内

java - 初始化 Hibernate 中代理的所有属性

©2024 IT工具网  联系我们