對象[email protected]不是已知的實體類型

當我堅持使用由Spring獲得的實體管理器的實體時，我正面臨以下問題。對象[email protected]不是已知的實體類型

java.lang.IllegalArgumentException: Object: [email protected] is not a known entity type. 
javax.faces.FacesException: #{configurationChecker.check}: java.lang.IllegalArgumentException: Object: [email protected] is not a known entity type. 
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118) 
    at javax.faces.component.UICommand.broadcast(UICommand.java:315) 
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) 
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) 
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) 
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565) 
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) 
    at java.lang.Thread.run(Thread.java:662) 
Caused by: javax.faces.el.EvaluationException: java.lang.IllegalArgumentException: Object: [email protected] is not a known entity type. 
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) 
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) 
    ... 23 more 
Caused by: java.lang.IllegalArgumentException: Object: [email protected] is not a known entity type. 
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.mergeCloneWithReferences(UnitOfWorkImpl.java:3484) 
    at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.mergeCloneWithReferences(RepeatableWriteUnitOfWork.java:378) 
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.mergeCloneWithReferences(UnitOfWorkImpl.java:3455) 
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.mergeInternal(EntityManagerImpl.java:486) 
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.merge(EntityManagerImpl.java:463) 
    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.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:365) 
    at $Proxy8.merge(Unknown Source) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240) 
    at $Proxy8.merge(Unknown Source) 
    at org.tts.maqraa.service.AbstractMaqraaService.store(AbstractMaqraaService.java:60) 
    at org.tts.maqraa.service.DarAlQuranService.createNewDarAlQuran(DarAlQuranService.java:47) 
    at org.tts.maqraa.service.test.ConfigurationChecker.check(ConfigurationChecker.java:63) 
    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.el.parser.AstValue.invoke(AstValue.java:264) 
    at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278) 
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) 
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) 
    ... 24 more.

在那裏我使用了以下技術

的Apache Tomcat 7
的Eclipse 2.3.2鏈接。
Spring 3.0。
JSF 2.0 Mojarra。

此外，您還可以找到Daralquran實體以確保實體正確映射。

@Entity 
public class Daralquran implements Serializable { 
    private static final long serialVersionUID = 1L; 
    @Id 
    @GeneratedValue(strategy=GenerationType.AUTO) 
    private int id; 

    @Temporal(TemporalType.DATE) 
    @Column(name="Established_Date") 
    private Date establishedDate; 

    @Column(name="Full_Name") 
    private String fullName; 

    @Column(name="Mobile_Number") 
    private String mobileNumber; 

    private String note; 

    @Column(name="Phone_no") 
    private String phoneNo; 

    //bi-directional many-to-one association to City 
    @ManyToOne(cascade={CascadeType.ALL}) 
    @JoinColumn(name="city_Id") 
    private City city; 

    //bi-directional many-to-one association to Country 
    @ManyToOne(cascade={CascadeType.ALL}) 
    @JoinColumn(name="country_Id") 
    private Country country; 

    //bi-directional many-to-one association to User 
    @ManyToOne(cascade={CascadeType.ALL}) 
    @JoinColumn(name="supervisor_id") 
    private User user; 

    //bi-directional many-to-many association to User 
    @ManyToMany(mappedBy="daralqurans2", fetch=FetchType.EAGER) 
    private List<User> users; 

    public Daralquran() { 
    } 

    public int getId() { 
     return this.id; 
    } 

    public void setId(int id) { 
     this.id = id; 
    } 

    public Date getEstablishedDate() { 
     return this.establishedDate; 
    } 

    public void setEstablishedDate(Date establishedDate) { 
     this.establishedDate = establishedDate; 
    } 

    public String getFullName() { 
     return this.fullName; 
    } 

    public void setFullName(String fullName) { 
     this.fullName = fullName; 
    } 

    public String getMobileNumber() { 
     return this.mobileNumber; 
    } 

    public void setMobileNumber(String mobileNumber) { 
     this.mobileNumber = mobileNumber; 
    } 

    public String getNote() { 
     return this.note; 
    } 

    public void setNote(String note) { 
     this.note = note; 
    } 

    public String getPhoneNo() { 
     return this.phoneNo; 
    } 

    public void setPhoneNo(String phoneNo) { 
     this.phoneNo = phoneNo; 
    } 

    public City getCity() { 
     return this.city; 
    } 

    public void setCity(City city) { 
     this.city = city; 
    } 

    public Country getCountry() { 
     return this.country; 
    } 

    public void setCountry(Country country) { 
     this.country = country; 
    } 

    public User getUser() { 
     return this.user; 
    } 

    public void setUser(User user) { 
     this.user = user; 
    } 

    public List<User> getUsers() { 
     return this.users; 
    } 

    public void setUsers(List<User> users) { 
     this.users = users; 
    } 
    }

您也可以找到persistence.xml文件

<?xml version="1.0" encoding="UTF-8" ?> 
<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="Maqraa"> 
     <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> 
     <class>org.tts.maqraa.data.DarAlquranManager</class> 
     <class>org.tts.maqraa.data.DoorAlquranGM</class> 
     <class>org.tts.maqraa.data.QuranTeacher</class> 
     <class>org.tts.maqraa.data.ScientificOfficer</class> 
     <class>org.tts.maqraa.data.SystemAdmin</class> 
     <class>org.tts.maqraa.data.City</class> 
     <class>org.tts.maqraa.data.Country</class> 
     <class>org.tts.maqraa.data.Daralquran</class> 
     <class>org.tts.maqraa.data.HalaqaAchievement</class> 
     <class>org.tts.maqraa.data.HalaqaAssociation</class> 
     <class>org.tts.maqraa.data.Halaqa</class> 
     <class>org.tts.maqraa.data.MemorizationProgram</class> 
     <class>org.tts.maqraa.data.Permission</class> 
     <class>org.tts.maqraa.data.Phase</class> 
     <class>org.tts.maqraa.data.PhasesAttendance</class> 
     <class>org.tts.maqraa.data.Recitation</class> 
     <class>org.tts.maqraa.data.Role</class> 
     <class>org.tts.maqraa.data.Student</class> 
     <class>org.tts.maqraa.data.User</class> 
     <properties> 
      <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" /> 
      <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/maqraa" /> 
      <property name="javax.persistence.jdbc.user" value="root" /> 
      <property name="javax.persistence.jdbc.password" value="root" /> 
      <property name="eclipselink.ddl-generation" value="none" /> 
      <property name="eclipselink.ddl-generation.output-mode" value="database" /> 
     </properties> 
    </persistence-unit> 
</persistence>

的內容，你也可以找到春元數據配置maqraa模塊-context.xml的

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> 

    <context:annotation-config /> 

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
     <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 
     <property name="url" value="jdbc:mysql://localhost:3306/maqraa" /> 
     <property name="username" value="root" /> 
     <property name="password" value="root" /> 
    </bean> 

    <bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.EclipseLinkJpaDialect" /> 

    <bean id="jpaVendorAdapter" 
     class="org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter"> 
     <property name="showSql" value="true" /> 
    </bean> 

    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
     <property name="persistenceUnitName" value="Maqraa" /> 
     <property name="dataSource" ref="dataSource" /> 
     <property name="jpaVendorAdapter" ref="jpaVendorAdapter" /> 
     <property name="jpaDialect" ref="jpaDialect" /> 
     <property name="loadTimeWeaver"> 
      <bean class="org.springframework.instrument.classloading.SimpleLoadTimeWeaver" /> 
     </property> 
    </bean> 

    <bean id="darAlquranService" class="org.tts.maqraa.service.DarAlQuranService"></bean> 

    <bean id="configurationChecker" class="org.tts.maqraa.service.test.ConfigurationChecker"></bean> 

</beans>

所以，任何人都可以幫助我使它正常工作。

謝謝穆罕默德阿姆。

來源

2012-05-09 Mohammed Amr

我知道了:)，

因爲我使用Tomcat 7應用程序中運行，它是不是一個EE contrainer，因此必須使用「LocalEntityManagerFactory」而不是「LocalContainerEntityManagerFactory」。

由此，您將能夠調用實體管理器方法並通過考慮事務。

完全，這是最後的maqraa模塊-context.xml的

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" 
    xsi:schemaLocation=" 
      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
      http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd 
      http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd 
      http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"> 

    <context:annotation-config /> 
    <!-- <context:component-scan base-package="org.tts.maqraa.data" annotation-config="true"/> --> 
    <bean 
     class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" /> 

    <bean id="dataSource" 
     class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
     <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 
     <property name="url" value="jdbc:mysql://localhost:3306/maqraa" /> 
     <property name="username" value="maqraa" /> 
     <property name="password" value="maqraa" /> 
    </bean> 

    <bean id="jpaDialect" 
     class="org.springframework.orm.jpa.vendor.EclipseLinkJpaDialect" /> 

    <bean id="jpaVendorAdapter" 
     class="org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter"> 
     <property name="database" value="MYSQL" /> 
     <property name="showSql" value="true" /> 
    </bean> 

    <bean id="entityManagerFactory" 
     class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean"> 
     <property name="persistenceUnitName" value="Maqraa" /> 
    </bean> 

    <bean id="configurationChecker" class="org.tts.maqraa.service.test.ConfigurationChecker"></bean> 

    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager" 
     p:entityManagerFactory-ref="entityManagerFactory" /> 

    <!-- Activates various annotations to be detected in bean classes for eg 
     @Autowired --> 
    <!-- <context:annotation-config/> --> 
    <!-- enable the configuration of transactional behavior based on annotations --> 
    <tx:annotation-driven transaction-manager="transactionManager" /> 

</beans>

感謝所有，穆罕默德·阿姆魯。

來源

2012-05-10 10:21:51

也許你需要特別的GenerationType，而不是使用GenerationType.Auto.Try它，我不確定。 The same case is here

來源

2012-05-09 09:16:54 FishGel

非常感謝，前面提到的帖子已經看到過，注意到我使用IDENTITY生成類型，基本上我想用預定義的id值持久化一個。 –

所以你可以刪除GenerationType。 – FishGel

同樣的例外。 –

這是一個類加載器問題，你以某種方式加載了相同類的兩個不同版本。

確保您沒有在兩個不同的地方部署此類，並且正確配置了Spring。也許嘗試一些Spring例子。

您是否重新部署？如果你還沒有關閉舊的EntityManagerFactory，你可能會遇到這個錯誤。嘗試重新啓動服務器。

是否所有的類都有相同的錯誤或做一些工作？

來源

2012-05-09 14:40:14 James

對象[email protected]不是已知的實體類型

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