如何在GlassFish上部署基于JDO的EAR文件？

Question

我现在非常绝望，因为我正在建立一个分成几个项目的小应用程序。有一个Web应用程序使用Vaadin和一个EJB容器，它应该与JDO和DataNucleus一起使用。洞穴项目是用Maven构建的，现在我很高兴出现了一个EAR档案。

EAR文件的内容对我来说是正确的。其中包含所有依赖项JAR，甚至在包含WAR文件中重复。它没有任何错误地部署到GlassFish服务器，但是当我调用URL时，我获得了ClassNotFoundException类的javax.jdo.JDOHelper。 JAR jdo-api-3.0.jar存在，但GlassFish无法找到它。

但为什么？有人能告诉我吗？请！

...和堆栈跟踪...;）de.igeri.mmorpg.*的东西是我的项目。但我想，你已经猜到了。

java.lang.NoClassDefFoundError: javax/jdo/JDOHelper
    at de.igeri.mmorpg.common.dao.JDOManager.(JDOManager.java:22)
    at de.igeri.mmorpg.common.dao.JDOManager.(JDOManager.java:14)
    at de.igeri.mmorpg.common.dao.BuildingBeanFactory.getAvailable(BuildingBeanFactory.java:29)
    at de.igeri.mmorpg.ui.BuildingUiFactory.getAvailable(BuildingUiFactory.java:26)
    at de.igeri.mmorpg.MmorpgApplication.createBuildingsPanel(MmorpgApplication.java:75)
    at de.igeri.mmorpg.MmorpgApplication.createBuildWindow(MmorpgApplication.java:58)
    at de.igeri.mmorpg.MmorpgApplication.createLayout(MmorpgApplication.java:44)
    at de.igeri.mmorpg.MmorpgApplication.init(MmorpgApplication.java:29)
    at com.vaadin.Application.start(Application.java:554)
    at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.startApplication(AbstractApplicationServlet.java:1182)
    at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:466)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1534)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
    at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:228)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:636)
Caused by: java.lang.ClassNotFoundException: javax.jdo.JDOHelper
    at com.sun.enterprise.loader.ASURLClassLoader.findClassData(ASURLClassLoader.java:808)
    at com.sun.enterprise.loader.ASURLClassLoader.findClass(ASURLClassLoader.java:696)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
    ... 37 more

Answer 1

我的建议是将你的jdo api和datanucleus libs添加到你的应用服务器作为模块，然后在maven你可以添加依赖关系

并添加datanucleus maven插件，如下所示：

   <plugin>
                    <groupId>org.datanucleus</groupId>
                    <artifactId>datanucleus-maven-plugin</artifactId>
                    <version>4.0.2</version>
                    <configuration>
                        <!-- <log4jConfiguration>src/main/resources/log4j.properties</log4jConfiguration> -->
<!-- this usefull if you dont want to get too long command error -->                        
<verbose>false</verbose>
                    </configuration>
                    <executions>
                        <execution>
                            <phase>compile</phase>
                            <goals>
                                <goal>enhance</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>

那么最重要的部分你必须将你的依赖项添加到清单文件中的datanucleus！我很确定在你的情况下这是问题所在。

在WildFly中你可以这样做：

<plugin>
                <groupId>org.wildfly.plugins</groupId>
                <artifactId>wildfly-maven-plugin</artifactId>
                <version>${version.wildfly.maven.plugin}</version>
                <inherited>true</inherited>
                <configuration>
                    <archive>
                        <manifest>
                            <addClasspath>true</addClasspath>
                        </manifest>
                        <addMavenDescriptor>false</addMavenDescriptor>
                        <manifestEntries>
                            <Dependencies>deployment.datanucleus-jdo-jca-5.0.0-m1.rar,
                                javax.jdo</Dependencies>
                        </manifestEntries>
                    </archive>
                </configuration>
            </plugin>

如果您没有清楚地使用jca适配器，则可以删除该部分。或者，您可以将maven设置为将部署描述符或清单文件等资源添加到包INF目录中。