org.hibernate.MappingException:找不到实体类(使用合格的类名不起作用) [英] org.hibernate.MappingException: entity class not found ( using qualified class name does not work)
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问题描述
我正在尝试运行一个简单的SELECT FROM表(我也尝试过SELECT FROM package.Class)查询，但是我一直收到此错误:
I'm trying to run a simple SELECT FROM table ( I have also tried SELECT FROM package.Class )query but I keep getting this error :
org.hibernate.MappingException: entity class not found: demo.Agents
at org.hibernate.mapping.PersistentClass.getMappedClass(PersistentClass.java:125)
at org.hibernate.tuple.PropertyFactory.getGetter(PropertyFactory.java:191)
at org.hibernate.tuple.PropertyFactory.buildIdentifierProperty(PropertyFactory.java:67)
at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:136)
at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:475)
at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:133)
at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:84)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:297)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1385)
at org.hibernate.console.ConsoleConfiguration$5.execute(ConsoleConfiguration.java:278)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:63)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:107)
at org.hibernate.console.ConsoleConfiguration.buildSessionFactory(ConsoleConfiguration.java:273)
at org.hibernate.eclipse.console.actions.ExecuteQueryAction.execute(ExecuteQueryAction.java:82)
at org.hibernate.eclipse.console.actions.ExecuteQueryAction.run(ExecuteQueryAction.java:56)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.hibernate.eclipse.console.actions.ExecuteQueryAction.runWithEvent(ExecuteQueryAction.java:60)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:452)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
Caused by: java.lang.ClassNotFoundException: demo.Agents
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
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.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:192)
at org.hibernate.mapping.PersistentClass.getMappedClass(PersistentClass.java:122)
... 43 more
这是该类的hbm.xml文件(请注意完整的限定词demo.Agents)
Here is the hbm.xml file of the class (notice the full qualifier demo.Agents)
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated Jun 27, 2012 19:17:46 by Hibernate Tools 3.6.0 -->
<hibernate-mapping>
<class name="demo.Agents" table="agents" schema="public">
<id name="id" type="int">
<column name="id" />
<generator class="assigned"></generator>
</id>
<property name="ssn" type="long">
<column name="ssn" precision="13" scale="0" not-null="true" />
</property>
<property name="namee" type="string">
<column name="namee" length="15" not-null="true" />
</property>
<property name="surname" type="string">
<column name="surname" length="30" not-null="true" />
</property>
<property name="adress" type="string">
<column name="adress" length="100" />
</property>
<property name="phone" type="string">
<column name="phone" length="20" />
</property>
</class>
</hibernate-mapping>
其他一些细节，可能会有所帮助:
Some other details, possibly helpful:
http://img441.imageshack.us/img441/2572/ss20120627202116.png
http://img20.imageshack.us/img20/2236/ss20120624201620.png
如果您需要任何其他印刷屏幕，我们将很乐意为您提供.请帮忙 :).我处在一个非常紧张的地方.谢谢(有人给我添加了一些更好的标签，我现在正强调这些标签，以免对它们过多考虑)
If you need any other printscreens i'll be happy to provide them. Please help :). I'm in a really tight spot. Thanks ( and somebody add some better tags i'm to stressed out right now to think too much about them)
LE
hibernatecfg.xml
the hibernatecfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.password">blablabla</property>
<property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/projteste</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
</session-factory>
</hibernate-configuration>
映射是在控制台配置中完成的
the mappings are done in the console configuration
LE2查看注释(链接607)，如果我从控制台配置中的其他映射中删除类，则会收到该错误.
LE2 see the comments (link 607) i get that error if i remove the classes from additional mappings in console configuration..
这是hibernatecfg.xml
here's the hibernatecfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory name="">
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.password">123456</property>
<property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/projteste</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<mapping resource="demo/Clients.hbm.xml"/>
<mapping resource="demo/Agents.hbm.xml"/>
</session-factory>
</hibernate-configuration>
和堆栈跟踪
org.hibernate.MappingNotFoundException: resource: demo/Clients.hbm.xml not found
at org.hibernate.cfg.Configuration.addResource(Configuration.java:665)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1679)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1647)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1626)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1600)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1554)
at org.hibernate.console.ConfigurationFactory.loadConfigurationXML(ConfigurationFactory.java:351)
at org.hibernate.console.ConfigurationFactory.configureStandardConfiguration(ConfigurationFactory.java:279)
at org.hibernate.console.ConfigurationFactory.buildConfiguration(ConfigurationFactory.java:184)
at org.hibernate.console.ConfigurationFactory.createConfiguration(ConfigurationFactory.java:96)
at org.hibernate.console.ConsoleConfiguration$3.execute(ConsoleConfiguration.java:240)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:63)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:107)
at org.hibernate.console.ConsoleConfiguration.buildWith(ConsoleConfiguration.java:237)
at org.hibernate.console.ConsoleConfiguration.build(ConsoleConfiguration.java:188)
at org.hibernate.eclipse.console.workbench.ConsoleConfigurationWorkbenchAdapter.getChildren(ConsoleConfigurationWorkbenchAdapter.java:42)
at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.getChildren(BasicWorkbenchAdapter.java:100)
at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:106)
at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:235)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
k4
org.hibernate.console.HibernateConsoleRuntimeException: Could not compute classpath
at org.hibernate.eclipse.console.EclipseLaunchConsoleConfigurationPreferences.getCustomClassPathURLS(EclipseLaunchConsoleConfigurationPreferences.java:103)
at org.hibernate.eclipse.console.utils.ProjectUtils.findJavaProjects(ProjectUtils.java:302)
at org.hibernate.eclipse.console.workbench.ProjectCompilerVersionChecker.validateProjectComplianceLevel(ProjectCompilerVersionChecker.java:35)
at org.hibernate.eclipse.console.workbench.ConsoleConfigurationWorkbenchAdapter.getChildren(ConsoleConfigurationWorkbenchAdapter.java:37)
at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.getChildren(BasicWorkbenchAdapter.java:100)
at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:106)
at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:235)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: org.eclipse.core.runtime.CoreException: Unable to restore classpath entry.
at org.eclipse.jdt.launching.JavaRuntime.abort(JavaRuntime.java:1376)
at org.eclipse.jdt.launching.JavaRuntime.abort(JavaRuntime.java:1361)
at org.eclipse.jdt.launching.JavaRuntime.newRuntimeClasspathEntry(JavaRuntime.java:731)
at org.eclipse.jdt.launching.StandardClasspathProvider.recoverRuntimePath(StandardClasspathProvider.java:100)
at org.eclipse.jdt.launching.StandardClasspathProvider.computeUnresolvedClasspath(StandardClasspathProvider.java:65)
at org.eclipse.jdt.launching.JavaRuntime.computeUnresolvedRuntimeClasspath(JavaRuntime.java:1215)
at org.hibernate.eclipse.console.utils.ClassLoaderHelper.getClasspath(ClassLoaderHelper.java:146)
at org.hibernate.eclipse.console.EclipseLaunchConsoleConfigurationPreferences.getCustomClassPathURLS(EclipseLaunchConsoleConfigurationPreferences.java:94)
... 7 more
Caused by: org.xml.sax.SAXException: FWK005 parse may not be called while parsing.
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:263)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284)
at org.eclipse.jdt.launching.JavaRuntime.newRuntimeClasspathEntry(JavaRuntime.java:708)
... 12 more
推荐答案
您忘记在主配置文件中声明映射文件:
You forgot to declare the mapping files in the main config file:
<session-factory>
...
<mapping resource="demo/Clients.hbm.xml"/>
<mapping resource="demo/Agents.hbm.xml"/>
</session-factory>
我将在这里重复我的评论:实体应以单数形式命名:Agent，Client.调整自动生成(请参见 http: //docs.jboss.org/tools/3.0.1.GA/en/hibernatetools/html_single/index.html#tab_and_col )，或之后重构生成的代码，因为您的所有应用程序代码都将基于这些代码名称，而将Agent和Agents称为真的很糟糕.该代码将令人困惑且难以理解.无论如何，实体是应用程序的核心，并且应包含除setter和getter之外的其他方法.因此，自动生成可以启动，但之后应将其忘记.
I'll repeat my comment here: the entities should be named with a singular form: Agent, Client. Tweak the auto-generation (see http://docs.jboss.org/tools/3.0.1.GA/en/hibernatetools/html_single/index.html#tab_and_col), or refactor the generated code afterwards, because all your application code will be based on these names, and it's really awful to call an Agent an Agents. The code will be confusing and hard to understand. Entities are the core of your application anyway, and should contain other methods than just setters and getters. So automatic generation is OK to start up, but should be forgotten afterwards.
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