Hibernate的會話工廠並沒有識別標識符

我收到一個很奇怪的hibernate錯誤。我已經映射所有實體在我的MySQL數據庫感謝到Hibernate代碼生成，我已經建立了所有的關係，一切似乎工作，但現在我得到這個錯誤Hibernate的會話工廠並沒有識別標識符

org.hibernate.AnnotationException: No identifier specified for entity: com.YouDroop.Data.Entities.Showcase 
at org.hibernate.cfg.InheritanceState.getElementsToProcess(InheritanceState.java:243) 
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:775) 
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:3845) 
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3799) 
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1412) 
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1373) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at org.jboss.tools.hibernate.runtime.common.Util.invokeMethod(Util.java:43) 
at org.jboss.tools.hibernate.runtime.common.AbstractConfigurationFacade.buildMappings(AbstractConfigurationFacade.java:160) 
at org.hibernate.console.ConsoleConfiguration$4.execute(ConsoleConfiguration.java:272) 
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:63) 
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:108) 
at org.hibernate.console.ConsoleConfiguration.buildMappings(ConsoleConfiguration.java:270) 
at org.hibernate.eclipse.console.workbench.ConsoleConfigurationWorkbenchAdapter.getChildren(ConsoleConfigurationWorkbenchAdapter.java:44) 
at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.getChildren(BasicWorkbenchAdapter.java:98) 
at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:104) 
at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:232) 
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

在實體櫥窗是這個

@Entity 
@Table(name = "showcase", schema = "youdroopnorelationships") 
public class Showcase implements Serializable { 

private static final long serialVersionUID = 1L; 

private int code; 
private Function function; 
private String description; 
private int capacity; 
private int currentNumberOfProducts; 

public Showcase() { 
} 

public Showcase(int code, Function function, int capacity, int currentNumberOfProducts) { 
    this.code = code; 
    this.function = function; 
    this.capacity = capacity; 
    this.currentNumberOfProducts = currentNumberOfProducts; 
} 

public Showcase(int code, Function function, String description, int capacity, int currentNumberOfProducts) { 
    this.code = code; 
    this.function = function; 
    this.description = description; 
    this.capacity = capacity; 
    this.currentNumberOfProducts = currentNumberOfProducts; 
} 

@Id 
//@GeneratedValue(strategy=GenerationType.AUTO) 
@Column(name = "Code", unique = true, nullable = false) 
public int getCode() { 
    return this.code; 
} 

public void setCode(int code) { 
    this.code = code; 
} 

@OneToOne(cascade = CascadeType.ALL) 
@JoinColumn(name = "Function_Name", nullable = false) 
public Function getFunction() { 
    return this.function; 
} 

public void setFunction(Function function) { 
    this.function = function; 
} 

@Column(name = "Description", length = 100) 
public String getDescription() { 
    return this.description; 
} 

public void setDescription(String description) { 
    this.description = description; 
} 

@Column(name = "Capacity", nullable = false) 
public int getCapacity() { 
    return this.capacity; 
} 

public void setCapacity(int capacity) { 
    this.capacity = capacity; 
} 

@Column(name = "CurrentNumberOfProducts", nullable = false) 
public int getCurrentNumberOfProducts() { 
    return this.currentNumberOfProducts; 
} 

public void setCurrentNumberOfProducts(int currentNumberOfProducts) { 
    this.currentNumberOfProducts = currentNumberOfProducts; 
} 

}

正如你可以看到我寫的所有註釋在正確的地方，即使是@Id之一，也是車.hbm文件體現了它。當我重建Hibernate配置時出現錯誤，而如果我只刷新它，它可以工作，但不允許我看到會話工廠，由於這個錯誤。

來源

2015-11-25 MissArmstrong

確保你有正確的進口：

import javax.persistence.Id;

，而不是

import org.springframework.data.annotation.Id;

希望這個作品

來源

2015-11-25 14:34:56

我使用這個進口：進口javax.persistence。*; import java.io. *; – MissArmstrong

你能告訴我你的數據庫表的代碼，所以也許我可以幫忙嗎？ –

數據庫表在下面，它被稱爲Showcase – MissArmstrong

Hibernate的會話工廠並沒有識別標識符

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