Hibernate 无法在@Embedded上使用属性访问权限

我无法在@Embedded field上使用属性访问权限

我的课程注释如下：

@Entity
@Table(name = "digitization_order")
public class Order {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;

//mapping on getter
private OrderImageData imageData;

@ManyToOne
@JoinColumn(name = "scanner_id")
private Scanner scanner;

public Order() {
}

public long getId() {
    return id;
}

@Embedded
@Access(AccessType.PROPERTY)
public OrderImageData getImageData() {
    return imageData;
}

[……]

所有类都有公共访问器，没有参数构造函数

在部署应用程序时/在hibernate创建db架构时-我遇到以下异常：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [Hibernate-Spring.xml]: Invocation of init method failed; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: digitization_order, for columns: [org.hibernate.mapping.Column(contents)]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1455)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:384)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4600)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5097)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5092)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:636)
Caused by: org.hibernate.MappingException: Could not determine type for: java.util.List, at table: digitization_order, for columns: [org.hibernate.mapping.Column(contents)]
    at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:306)
    at org.hibernate.tuple.PropertyFactory.buildStandardProperty(PropertyFactory.java:143)
    at org.hibernate.tuple.component.ComponentMetamodel.<init>(ComponentMetamodel.java:68)
    at org.hibernate.mapping.Component.buildType(Component.java:184)
    at org.hibernate.mapping.Component.getType(Component.java:177)
    at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:290)
    at org.hibernate.mapping.Property.isValid(Property.java:217)
    at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:463)
    at org.hibernate.mapping.RootClass.validate(RootClass.java:235)
    at org.hibernate.cfg.Configuration.validate(Configuration.java:1332)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1835)
    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:860)
    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:779)
    at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
    ... 20 more

org.springframework.beans.factory.BeanCreationException:创建名为“sessionFactory”的bean时出错，该bean在类路径资源[Hibernate Spring.xml]中定义：调用init方法失败；嵌套异常为org.hibernate.MappingException:无法确定以下列的类型：[org.hibernate.mapping.Column（contents）]
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1455）
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:519）
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:456）
位于org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject（AbstractBeanFactory.java:294）
位于org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:225）
位于org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:291）
位于org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:193）
位于org.springframework.beans.factory.support.DefaultListableBeanFactory.PreInstanceSingleton（DefaultListableBeanFactory.java:567）
位于org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:913）
位于org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:464）
位于org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext（ContextLoader.java:384）
位于org.springframework.web.context.ContextLoader.initWebApplicationContext（ContextLoader.java:283）
位于org.springframework.web.context.ContextLoaderListener.contextInitialized（ContextLoaderListener.java:111）
位于org.apache.catalina.core.StandardContext.listenerStart（StandardContext.java:4600）
位于org.apache.catalina.core.StandardContext$1.call（StandardContext.java:5097）
位于org.apache.catalina.core.StandardContext$1.call（StandardContext.java:5092）
位于java.util.concurrent.FutureTask$Sync.innerRun（FutureTask.java:334）
在java.util.concurrent.FutureTask.run（FutureTask.java:166）中
位于java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1110）
位于java.util.concurrent.ThreadPoolExecutor$Worker.run（ThreadPoolExecutor.java:603）
运行（Thread.java:636）
原因：org.hibernate.MappingException:无法确定列：[org.hibernate.mapping.Column（contents）]的类型：java.util.List，位于表：Digitalization\u order中
位于org.hibernate.mapping.SimpleValue.getType（SimpleValue.java:306）
位于org.hibernate.tuple.PropertyFactory.buildStandardProperty（PropertyFactory.java:143）
位于org.hibernate.tuple.component.ComponentMetamodel（ComponentMetamodel.java:68）
位于org.hibernate.mapping.Component.buildType（Component.java:184）
位于org.hibernate.mapping.Component.getType（Component.java:177）
位于org.hibernate.mapping.SimpleValue.isValid（SimpleValue.java:290）
位于org.hibernate.mapping.Property.isValid（Property.java:217）
位于org.hibernate.mapping.PersistentClass.validate（PersistentClass.java:463）
位于org.hibernate.mapping.RootClass.validate（RootClass.java:235）
位于org.hibernate.cfg.Configuration.validate（Configuration.java:1332）
位于org.hibernate.cfg.Configuration.buildSessionFactory（Configuration.java:1835）
位于org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory（LocalSessionFactoryBean.java:860）
位于org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory（LocalSessionFactoryBean.java:779）
位于org.springframework.orm.hibernate3.AbstractSessionFactoryBean.AfterPropertieSet（AbstractSessionFactoryBean.java:211）
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory.java:1514）
位于org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1452）
... 20多

在我将imageData的访问权限更改为字段后（将注释从getter移动到字段后），stacktrace将消失

---

你知道为什么吗

不确定，但是

OrderImageData

可以从

@access（AccessType.PROPERTY）

方法上放置的注释继承其访问类型。因此，Hibernate将查找此类属性的映射细节，但找不到任何映射细节，从而导致此异常

尝试将

@Access（AccessType.FIELD）

放在

OrderImageData

类上

@Entity
@Table(name = "order_content")
public class OrderContent {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;

@Column(name = "uuid")
private String uuid;

@ElementCollection(fetch = FetchType.EAGER)
@CollectionTable(name = "comment")
@OrderColumn(name = "comment_order")
@JoinColumn(name = "order_content_id")
private List<Comment> comments = new ArrayList<Comment>();

private boolean faulty;

private OrderContent() {
}

@Embeddable
public class Comment {
private CommentType commentType;

private String comment;

private Date date;

private long revisionNo;

//JPA
private Comment() {
}

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [Hibernate-Spring.xml]: Invocation of init method failed; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: digitization_order, for columns: [org.hibernate.mapping.Column(contents)]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1455)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:384)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4600)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5097)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5092)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:636)
Caused by: org.hibernate.MappingException: Could not determine type for: java.util.List, at table: digitization_order, for columns: [org.hibernate.mapping.Column(contents)]
    at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:306)
    at org.hibernate.tuple.PropertyFactory.buildStandardProperty(PropertyFactory.java:143)
    at org.hibernate.tuple.component.ComponentMetamodel.<init>(ComponentMetamodel.java:68)
    at org.hibernate.mapping.Component.buildType(Component.java:184)
    at org.hibernate.mapping.Component.getType(Component.java:177)
    at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:290)
    at org.hibernate.mapping.Property.isValid(Property.java:217)
    at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:463)
    at org.hibernate.mapping.RootClass.validate(RootClass.java:235)
    at org.hibernate.cfg.Configuration.validate(Configuration.java:1332)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1835)
    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:860)
    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:779)
    at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
    ... 20 more