java - OSGi 中的 OpenJPA 找不到 MySQL JDBC 连接器包

Question

我目前在 Felix (v4.0.3) 上开发一个 OSGi 项目。我需要使用 JPA，所以我安装了 Apache Aries JPA 包。我还安装了 OpenJPA，我需要它来使用 MySQL 连接器包连接到 MySQL 数据库。不幸的是它不起作用，OpenJPA 说它找不到 MySQL JDBC 类，我无法弄清楚是什么坏了，也许我做错了什么。我将在下面解释我精确安装的内容以及 persistence.xml 文件和我得到的实际异常。

这是我安装的 Apache Aries 捆绑包的列表：

1. org.apache.aries.jpa.api-0.3.jar
2. org.apache.aries.jpa.container.context-0.3.jar
3. org.apache.aries.jpa.container-0.3.jar
4. org.apache.aries.util-0.4.jar

然后我安装了那些 Apache Aries JPA 包的依赖项。我从 Springsource 下载了它们：

1. com.springsource.javax.transaction-1.1.0.jar
2. com.springsource.org.apache.log4j-1.2.16.jar
3. com.springsource.slf4j.api-1.6.1.jar
4. com.springsource.slf4j.log4j-1.6.1.jar
5. javax.persistence_2.0.4.v201112161009.jar（这个来自 EclipseLink，以防万一）

我还安装了 OpenJPA 及其所有依赖项。我在apache-openjpa-2.2.0下载文件夹的lib文件夹中找到了 bundle 2 到 5 (commons-*) 。我在这里下载了 Serp ，因为在 lib 文件夹中找到的 jar 不是 OSGi 包。最后我在 Springsource 中找到了最后两个包（#7 和 #8）：

1. openjpa-2.2.0.jar
2. commons-collections-3.2.1.jar
3. commons-dbcp-1.4.jar
4. commons-lang-2.4.jar
5. commons-pool-1.5.4.jar
6. org.apache.servicemix.bundles.serp-1.13.1_4.jar
7. com.springsource.javax.servlet-2.5.0.jar
8. com.springsource.org.objectweb.asm-3.2.0.jar

一旦我最终安装了 OpenJPA，我仍然需要 MySQL JDBC 驱动程序包，我也从 Springsource 存储库中获得了它以及它的 commons-logging 依赖项：

1. com.springsource.com.mysql.jdbc-5.1.6.jar
2. com.springsource.org.apache.commons.logging-1.1.1.jar

现在，安装的捆绑包列表变得非常大。我说我安装了 OpenJPA，但这只是因为我不知道如何将任何其他提供程序与 Aries 一起使用。我最初想使用 EclipseLink，但显然 Apache Aries 没有将其检测为提供程序，并且根据此博客，您必须制作另一个包含您自己的激活器的捆绑包，以便 Aries 注意到 EclipseLink。我试过了，但没有用，所以我改用 OpenJPA。

所以现在我有两个问题：

• 如何让 OpenJPA 注意到我的 MySQL Bundle？

或者：

• 如何让 Apache Aries 注意到 EclipseLink ？

这是我使用的 persistence.xml 文件：

<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="userManager.model" transaction-type="RESOURCE_LOCAL">
    <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
    <class>org.project.dao.entity.UserEntity</class>
    <properties>
        <property name="openjpa.ConnectionDriverName" value="com.mysql.jdbc.Driver" />
        <property name="openjpa.ConnectionURL" value="jdbc:mysql://localhost:3306/usermanager?autoReconnect=true" />
        <property name="openjpa.ConnectionUserName" value="root" />
        <property name="openjpa.ConnectionPassword" value="root" />            
    </properties>
</persistence-unit>
</persistence>

执行我的 DAO 类的以下构造函数时发生错误：

    @PersistenceContext(unitName="userManager.model")
private EntityManager em;
private EntityManagerFactory emf;

public UserDAOBean() {
    em = emf.createEntityManager();
}

这是我在 OpenJPA 找不到 MySQL 时遇到的错误。当然值得一提的是 URL 和用户名/密码都可以工作：

<openjpa-2.2.0-r422266:1244990 nonfatal general error> org.apache.openjpa.persistence.PersistenceException: There were errors initializing your configuration: <openjpa-2.2.0-r422266:1244990 fatal user error> org.apache.openjpa.util.UserException: A connection could not be obtained for driver class "com.mysql.jdbc.Driver" and URL "jdbc:mysql://localhost:3306/usermanager?autoReconnect=true".  You may have specified an invalid URL.
at org.apache.openjpa.jdbc.schema.DataSourceFactory.newConnectException(DataSourceFactory.java:255)
at org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFactory.java:123)
at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactory(JDBCConfigurationImpl.java:844)
at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getConnectionFactory(JDBCConfigurationImpl.java:732)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.openjpa.lib.conf.ConfigurationImpl.instantiateAll(ConfigurationImpl.java:295)
at org.apache.openjpa.conf.OpenJPAConfigurationImpl.instantiateAll(OpenJPAConfigurationImpl.java:1671)
at org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrokerFactory.java:646)
at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:203)
at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:156)
at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:227)
at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:154)
at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:60)
at org.apache.aries.jpa.container.impl.CountingEntityManagerFactory.createEntityManager(CountingEntityManagerFactory.java:64)
at javax.persistence.EntityManagerFactory$$Proxy.createEntityManager(Unknown Source)

我已经消除了异常（它一直在继续）直到这一点：

Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver not found by org.apache.openjpa [12]
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1460)
at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:72)
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1843)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFactory.java:85)
... 108 more

PS：由于垃圾邮件限制，我无法发布指向 Aries、OpenJPA 或 EclipseLink 的链接，抱歉：/

Answer 1

感谢 Holly Cummins，经过几个小时的研究，我找到了解决问题的方法。我将在下面详细说明，这将是一个很长的答案。

如果您想将EclipseLink与 Apache Aries 一起使用（我发现安装它比 OSGi 的 OpenJPA 简单几个数量级，因为它只包含在5个捆绑包中），您必须直接从 apache 签出 EclipseLink - Aries 适配器，因为它还没有尚未发布。

转到适当的文件夹并执行以下命令来获取它：

svn checkout https://svn.apache.org/repos/asf/aries/trunk/jpa/jpa-container-eclipselink-adapter/

您应该得到一个名为jpa-container-eclipselink-adapter的文件夹。现在，假设您使用的是 Linux 并安装了 Maven，请运行以下命令：

cd jpa-container-eclipselink-adapter
mvn clean install

一旦 Maven 成功编译了适配器的源代码，您将使用路径在 Maven 存储库中找到它

<maven-repo>/org/apache/aries/jpa/org.apache.aries.jpa.eclipselink.adapter/0.3.1-SNAPSHOT/org.apache.aries.jpa.eclipselink.adapter-0.3.1-SNAPSHOT.jar

您必须与其他捆绑包一起部署此捆绑包（将其复制到 Felix 的捆绑包文件夹中）。

这就是 EclipseLink 部分，现在为了让您的持久性真正发挥作用，您必须将 Blueprint 与 Aries 一起使用。这是您需要从 [http://aries.apache.org/downloads/currentrelease.html]（Apache Aries 下载页面）获取的所有捆绑包的列表

1. org.apache.aries.blueprint
2. org.apache.aries.proxy
3. org.apache.aries.jndi.api
4. org.apache.aries.jndi
5. org.apache.aries.blueprint
6. org.apache.aries.jpa.api
7. org.apache.aries.jpa.container.context
8. org.apache.aries.jpa.container
9. org.apache.aries.transaction.blueprint
10. org.apache.aries.transaction.manager（这个在他们的网站上列出了两次，只是重复）
11. org.apache.aries.util

完成 Aries 下载后，您仍然需要依赖项（从 SpringSource 获取它们）。这些是 SLF4J、Log4J、SLF4J Log4J Binding 和 javax.transaction 1.1 API 的捆绑包。

1. http://ebr.springsource.com/repository/app/bundle/version/detail?name=com.springsource.slf4j.api&version=1.6.1
2. http://ebr.springsource.com/repository/app/bundle/version/detail?name=com.springsource.slf4j.log4j&version=1.6.1
3. http://ebr.springsource.com/repository/app/bundle/version/detail?name=com.springsource.javax.transaction&version=1.1.0
4. http://ebr.springsource.com/repository/app/bundle/version/detail?name=com.springsource.org.apache.log4j&version=1.2.16

您还需要来自 EclipseLink 的包（您需要 OSGi 包版本）

http://www.eclipse.org/eclipselink/downloads/

打开 zip 并获取以下文件：

1. org.eclipse.persistence.antlr
2. org.eclipse.persistence.asm
3. org.eclipse.persistence.core
4. org.eclipse.persistence.jpa
5. javax.persistence

最后，假设您要使用 MySQL 数据库，您将需要 MySQL JDBC 驱动程序包（从 Springsource 下载）

1. http://ebr.springsource.com/repository/app/bundle/version/detail?name=com.springsource.com.mysql.jdbc&version=5.1.6
2. http://ebr.springsource.com/repository/app/bundle/version/detail?name=com.springsource.org.apache.commons.logging&version=1.1.1

一旦你安装了所有这些包，你需要使用一个你将通过 JNDI 获得的非 jta 数据源。这是一个 persistence.xml 文件，您可以根据需要进行更改：

<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
    version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">
    <persistence-unit name="userManager" transaction-type="RESOURCE_LOCAL">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        <non-jta-data-source>osgi:service/javax.sql.DataSource/(osgi.jndi.service.name=jdbc/userManagerDS)</non-jta-data-source>
        <class>com.example.dao.entity.UserEntity</class>
        <exclude-unlisted-classes>true</exclude-unlisted-classes>
        <properties>  
            <!-- EclipseLink should create the database schema automatically -->
            <!-- <property name="eclipselink.ddl-generation" value="create-tables" /> 
            <property name="eclipselink.ddl-generation.output-mode" value="database" /> -->
        </properties>
    </persistence-unit>
</persistence>

看到非 jta-data-source 标记中的javax.sql.Datasource了吗？这就是我们将使用 Blueprint xml 定义的内容。为此，您首先需要在持久性捆绑包中添加OSGI-INF/blueprint/文件夹（包含您的 DAO 和实体的那个）。这是蓝图 xml 文件所在的默认文件夹，位于此处的任何 xml 文件都将被扫描。完成后，创建blueprint.xml文件（名称可以更改）并粘贴（和修改）以下代码：

        <bean id="dataSource" class="com.mysql.jdbc.jdbc2.optional.MysqlDataSource">
        <property name="url" value="jdbc:mysql://localhost:3306/usermanager?autoReconnect=true" />
        <property name="user" value="root" />
        <property name="password" value="root" />
    </bean>

    <service id="MySQLDataSource" interface="javax.sql.DataSource" ref="dataSource">
        <service-properties>
            <entry key="osgi.jndi.service.name" value="jdbc/userManagerDS" />
        </service-properties>
    </service>

    <service id="userDAOService" interface="com.example.dao.remote.UserDAORemote">
        <bean class="com.example.dao.beans.UserDAOBean">
            <jpa:unit index="0" unitname="userManager" />
        </bean>
    </service>
</blueprint>

在这里，我们正在做两件事。首先，我们告诉 Aries 创建userManagerDS数据源并使用 JDBC 驱动程序、URL、用户和密码对其进行配置。这与我们在persistence.xml文件中使用的数据源相同。

然后，我们在 DAO 中注入EntityManagerFactory。我们的 DAO 是com.example.dao.beans.UserDAOBean类，我们需要将其名称添加到bean标记中。这个类必须实现一个接口，我们需要将此接口添加到服务标签中。现在，最后的jpa:unit标记告诉 Aries 使用 UserDAOBean 的第一个构造函数注入与名为userManager（我们在 persistence.xml 中使用的名称相同）的持久性单元相关的 EntityManagerFactory。这是通过使用 index="0" 属性来完成的。这也意味着你的 DAO 中必须有如下代码：

private EntityManager em;
private EntityManagerFactory emf;

public UserDAOBean(EntityManagerFactory emf) {
    this.emf = emf;
    this.em = emf.createEntityManager();
}

也可以使用 setter 注入 EMF。以下是帮助您使用 Blueprint 的更多资源：

• http://aries.apache.org/modules/jpaproject.html
• http://aries.apache.org/modules/blueprint.html
• http://mail-archives.apache.org/mod_mbox/aries-user/201104.mbox/%3C15F2C30E-2A71-4320-9992-DBCF181B58E4@gmail.com%3E

可选：请注意，如果您使用的是 Felix，添加 javax.transaction 包将导致“违反使用约束”，因为系统包（包 0）也导出此 API。您必须通过更改config.properties中的以下行来阻止它导出它：

#org.osgi.framework.system.packages=

您必须在此处输入上一个包导出的所有包的列表。不幸的是，没有办法“删除”一个包，您必须重新定义要导出的整个包列表。这是我的，我希望它有帮助（是的，它非常非常长）：

org.osgi.framework.system.packages=org.osgi.framework;version=1.6.0, org.osgi.framework.launch;version=1.0.0, org.osgi.framework.wiring;version=1.0.0, org.osgi.framework.startlevel;version=1.0.0, org.osgi.framework.hooks.bundle;version=1.0.0, org.osgi.framework.hooks.resolver;version=1.0.0, org.osgi.framework.hooks.service;version=1.1.0, org.osgi.framework.hooks.weaving;version=1.0.0, org.osgi.service.packageadmin;version=1.2.0, org.osgi.service.startlevel;version=1.1.0, org.osgi.service.url;version=1.0.0, org.osgi.util.tracker;version=1.5.0, javax.accessibility;version=0.0.0.1_006_JavaSE, javax.activation;version=0.0.0.1_006_JavaSE, javax.activity;version=0.0.0.1_006_JavaSE, javax.annotation.processing;version=0.0.0.1_006_JavaSE, javax.annotation;version=0.0.0.1_006_JavaSE, javax.crypto.interfaces;version=0.0.0.1_006_JavaSE, javax.crypto.spec;version=0.0.0.1_006_JavaSE, javax.crypto;version=0.0.0.1_006_JavaSE, javax.imageio.event;version=0.0.0.1_006_JavaSE, javax.imageio.metadata;version=0.0.0.1_006_JavaSE, javax.imageio.plugins.bmp;version=0.0.0.1_006_JavaSE, javax.imageio.plugins.jpeg;version=0.0.0.1_006_JavaSE, javax.imageio.spi;version=0.0.0.1_006_JavaSE, javax.imageio.stream;version=0.0.0.1_006_JavaSE, javax.imageio;version=0.0.0.1_006_JavaSE, javax.jws.soap;version=0.0.0.1_006_JavaSE, javax.jws;version=0.0.0.1_006_JavaSE, javax.lang.model.element;version=0.0.0.1_006_JavaSE, javax.lang.model.type;version=0.0.0.1_006_JavaSE, javax.lang.model.util;version=0.0.0.1_006_JavaSE, javax.lang.model;version=0.0.0.1_006_JavaSE, javax.management.loading;version=0.0.0.1_006_JavaSE, javax.management.modelmbean;version=0.0.0.1_006_JavaSE, javax.management.monitor;version=0.0.0.1_006_JavaSE, javax.management.openmbean;version=0.0.0.1_006_JavaSE, javax.management.relation;version=0.0.0.1_006_JavaSE, javax.management.remote.rmi;version=0.0.0.1_006_JavaSE, javax.management.remote;version=0.0.0.1_006_JavaSE, javax.management.timer;version=0.0.0.1_006_JavaSE, javax.management;version=0.0.0.1_006_JavaSE, javax.naming.directory;version=0.0.0.1_006_JavaSE, javax.naming.event;version=0.0.0.1_006_JavaSE, javax.naming.ldap;version=0.0.0.1_006_JavaSE, javax.naming.spi;version=0.0.0.1_006_JavaSE, javax.naming;version=0.0.0.1_006_JavaSE, javax.net.ssl;version=0.0.0.1_006_JavaSE, javax.net;version=0.0.0.1_006_JavaSE, javax.print.attribute.standard;version=0.0.0.1_006_JavaSE, javax.print.attribute;version=0.0.0.1_006_JavaSE, javax.print.event;version=0.0.0.1_006_JavaSE, javax.print;version=0.0.0.1_006_JavaSE, javax.rmi.CORBA;version=0.0.0.1_006_JavaSE, javax.rmi.ssl;version=0.0.0.1_006_JavaSE, javax.rmi;version=0.0.0.1_006_JavaSE, javax.script;version=0.0.0.1_006_JavaSE, javax.security.auth.callback;version=0.0.0.1_006_JavaSE, javax.security.auth.kerberos;version=0.0.0.1_006_JavaSE, javax.security.auth.login;version=0.0.0.1_006_JavaSE, javax.security.auth.spi;version=0.0.0.1_006_JavaSE, javax.security.auth.x500;version=0.0.0.1_006_JavaSE, javax.security.auth;version=0.0.0.1_006_JavaSE, javax.security.cert;version=0.0.0.1_006_JavaSE, javax.security.sasl;version=0.0.0.1_006_JavaSE, javax.sound.midi.spi;version=0.0.0.1_006_JavaSE, javax.sound.midi;version=0.0.0.1_006_JavaSE, javax.sound.sampled.spi;version=0.0.0.1_006_JavaSE, javax.sound.sampled;version=0.0.0.1_006_JavaSE, javax.sql.rowset.serial;version=0.0.0.1_006_JavaSE, javax.sql.rowset.spi;version=0.0.0.1_006_JavaSE, javax.sql.rowset;version=0.0.0.1_006_JavaSE, javax.sql;version=0.0.0.1_006_JavaSE, javax.swing.border;version=0.0.0.1_006_JavaSE, javax.swing.colorchooser;version=0.0.0.1_006_JavaSE, javax.swing.event;version=0.0.0.1_006_JavaSE, javax.swing.filechooser;version=0.0.0.1_006_JavaSE, javax.swing.plaf.basic;version=0.0.0.1_006_JavaSE, javax.swing.plaf.metal;version=0.0.0.1_006_JavaSE, javax.swing.plaf.multi;version=0.0.0.1_006_JavaSE, javax.swing.plaf.synth;version=0.0.0.1_006_JavaSE, javax.swing.plaf;version=0.0.0.1_006_JavaSE, javax.swing.table;version=0.0.0.1_006_JavaSE, javax.swing.text.html.parser;version=0.0.0.1_006_JavaSE, javax.swing.text.html;version=0.0.0.1_006_JavaSE, javax.swing.text.rtf;version=0.0.0.1_006_JavaSE, javax.swing.text;version=0.0.0.1_006_JavaSE, javax.swing.tree;version=0.0.0.1_006_JavaSE, javax.swing.undo;version=0.0.0.1_006_JavaSE, javax.swing;version=0.0.0.1_006_JavaSE, javax.tools;version=0.0.0.1_006_JavaSE, javax.transaction.xa;version=0.0.0.1_006_JavaSE, javax.transaction;version=0.0.0.1_006_JavaSE, javax.xml.bind.annotation.adapters;version=0.0.0.1_006_JavaSE, javax.xml.bind.annotation;version=0.0.0.1_006_JavaSE, javax.xml.bind.attachment;version=0.0.0.1_006_JavaSE, javax.xml.bind.helpers;version=0.0.0.1_006_JavaSE, javax.xml.bind.util;version=0.0.0.1_006_JavaSE, javax.xml.bind;version=0.0.0.1_006_JavaSE, javax.xml.crypto.dom;version=0.0.0.1_006_JavaSE, javax.xml.crypto.dsig.dom;version=0.0.0.1_006_JavaSE, javax.xml.crypto.dsig.keyinfo;version=0.0.0.1_006_JavaSE, javax.xml.crypto.dsig.spec;version=0.0.0.1_006_JavaSE, javax.xml.crypto.dsig;version=0.0.0.1_006_JavaSE, javax.xml.crypto;version=0.0.0.1_006_JavaSE, javax.xml.datatype;version=0.0.0.1_006_JavaSE, javax.xml.namespace;version=0.0.0.1_006_JavaSE, javax.xml.parsers;version=0.0.0.1_006_JavaSE, javax.xml.soap;version=0.0.0.1_006_JavaSE, javax.xml.stream.events;version=0.0.0.1_006_JavaSE, javax.xml.stream.util;version=0.0.0.1_006_JavaSE, javax.xml.stream;version=0.0.0.1_006_JavaSE, javax.xml.transform.dom;version=0.0.0.1_006_JavaSE, javax.xml.transform.sax;version=0.0.0.1_006_JavaSE, javax.xml.transform.stax;version=0.0.0.1_006_JavaSE, javax.xml.transform.stream;version=0.0.0.1_006_JavaSE, javax.xml.transform;version=0.0.0.1_006_JavaSE, javax.xml.validation;version=0.0.0.1_006_JavaSE, javax.xml.ws.handler.soap;version=0.0.0.1_006_JavaSE, javax.xml.ws.handler;version=0.0.0.1_006_JavaSE, javax.xml.ws.http;version=0.0.0.1_006_JavaSE, javax.xml.ws.soap;version=0.0.0.1_006_JavaSE, javax.xml.ws.spi;version=0.0.0.1_006_JavaSE, javax.xml.ws.wsaddressing;version=0.0.0.1_006_JavaSE, javax.xml.ws;version=0.0.0.1_006_JavaSE, javax.xml.xpath;version=0.0.0.1_006_JavaSE, javax.xml;version=0.0.0.1_006_JavaSE, org.ietf.jgss;version=0.0.0.1_006_JavaSE, org.omg.CORBA.DynAnyPackage;version=0.0.0.1_006_JavaSE, org.omg.CORBA.ORBPackage;version=0.0.0.1_006_JavaSE, org.omg.CORBA.TypeCodePackage;version=0.0.0.1_006_JavaSE, org.omg.CORBA.portable;version=0.0.0.1_006_JavaSE, org.omg.CORBA;version=0.0.0.1_006_JavaSE, org.omg.CORBA_2_3.portable;version=0.0.0.1_006_JavaSE, org.omg.CORBA_2_3;version=0.0.0.1_006_JavaSE, org.omg.CosNaming.NamingContextExtPackage;version=0.0.0.1_006_JavaSE, org.omg.CosNaming.NamingContextPackage;version=0.0.0.1_006_JavaSE, org.omg.CosNaming;version=0.0.0.1_006_JavaSE, org.omg.Dynamic;version=0.0.0.1_006_JavaSE, org.omg.DynamicAny.DynAnyFactoryPackage;version=0.0.0.1_006_JavaSE, org.omg.DynamicAny.DynAnyPackage;version=0.0.0.1_006_JavaSE, org.omg.DynamicAny;version=0.0.0.1_006_JavaSE, org.omg.IOP.CodecFactoryPackage;version=0.0.0.1_006_JavaSE, org.omg.IOP.CodecPackage;version=0.0.0.1_006_JavaSE, org.omg.IOP;version=0.0.0.1_006_JavaSE, org.omg.Messaging;version=0.0.0.1_006_JavaSE, org.omg.PortableInterceptor.ORBInitInfoPackage;version=0.0.0.1_006_JavaSE, org.omg.PortableInterceptor;version=0.0.0.1_006_JavaSE, org.omg.PortableServer.CurrentPackage;version=0.0.0.1_006_JavaSE, org.omg.PortableServer.POAManagerPackage;version=0.0.0.1_006_JavaSE, org.omg.PortableServer.POAPackage;version=0.0.0.1_006_JavaSE, org.omg.PortableServer.ServantLocatorPackage;version=0.0.0.1_006_JavaSE, org.omg.PortableServer.portable;version=0.0.0.1_006_JavaSE, org.omg.PortableServer;version=0.0.0.1_006_JavaSE, org.omg.SendingContext;version=0.0.0.1_006_JavaSE, org.omg.stub.java.rmi;version=0.0.0.1_006_JavaSE, org.w3c.dom.bootstrap;version=0.0.0.1_006_JavaSE, org.w3c.dom.events;version=0.0.0.1_006_JavaSE, org.w3c.dom.ls;version=0.0.0.1_006_JavaSE, org.w3c.dom;version=0.0.0.1_006_JavaSE, org.xml.sax.ext;version=0.0.0.1_006_JavaSE, org.xml.sax.helpers;version=0.0.0.1_006_JavaSE, org.xml.sax;version=0.0.0.1_006_JavaSE

Answer 2

使用 JNDI 数据源而不是直接的 jdbc 连接可能会更好。Aries 博客示例有一个 blog.datasource 包，它使用蓝图注册数据源。所需捆绑包的列表比您当前拥有的要长，但您可以从 blog-assembly/target 目录或 pom.xml 中将它们全部复制。

或者，Aries 有一个 org.apache.aries.jpa.eclipselink.adapter，它与您链接到的文章做同样的事情。Aries 使用它来针对 EclipseLink 进行测试，所以它肯定可以工作。您还可以查看 Aries 测试以了解它是如何使用的，并查看是否有可以复制的 EclipseLink 测试。

Answer 3

使用gemini blueprint dbAccess 插件( http://www.eclipse.org/gemini/dbaccess/ )时事情可能会更容易，我认为它也适用于Aries。对于 MySQL，请务必包含连接器插件（例如http://ebr.springsource.com/repository/app/bundle/version/detail?name=com.springsource.com.mysql.jdbc&version=5.1.6）。这应该足以让数据库启动并运行，前提是 blueprint.xml（使用上面的示例）配置正确，如上所述。