我想創建這些情況： 用戶-------->用戶的速率約作者< ------------作者複合主鍵在休眠狀態下無法創建
所以我得到了類：
public class User implements UserDetails {
@Id
private String username;
(...)
@OneToMany(targetEntity=RateAth.class, mappedBy="user", cascade=CascadeType.ALL)
List<RateAth> authorRates
public class Author {
@Id
private int id;
(...)
@OneToMany(targetEntity=RateAth.class, mappedBy="author", cascade=CascadeType.ALL)
private List<RateAth> authorRates;
這裏是我的RateAth類：org.hibernate.MappingException：
@Entity
@Table(name="users_authors_rate")
public class RateAth {
@Id
private PK primaryKey;
private Integer rate;
private Date date;
private String username;
@Id
public PK getPrimaryKey() {
return primaryKey;
}
public void setPrimaryKey(PK primaryKey) {
this.primaryKey = primaryKey;
}
public Integer getRate() {
return rate;
}
public void setRate(Integer rate) {
this.rate = rate;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public User getUser() {
return primaryKey.getUser();
}
public void setUser(User user) {
this.primaryKey.setUser(user);
}
public Author getAuthor() {
return primaryKey.getAuthor();
}
public void setAuthor(Author author) {
this.primaryKey.setAuthor(author);
}
}
@Embeddable
class PK implements Serializable{
@ManyToOne
@JoinColumn(name="username")
private User user;
@ManyToOne
@JoinColumn(name="author_id")
private Author author;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public Author getAuthor() {
return author;
}
public void setAuthor(Author author) {
this.author = author;
}
}
... 49多產生的原因：無法 確定類型：beans.Author，在表：users_authors_rate，用於 列：[org.hibernate.mapping.Column（作者）]在 org.hibernate.mapping.SimpleValue.getType（SimpleValue.java:292）在 org.hibernate.mapping.SimpleValue.isValid（SimpleValue.java:276）at org.hibernate.mapping.Property.isValid（Property.java:207）at org.hibernate.mapping.PersistentClass.validate（PersistentClass。 java：458） at org.hibernate.mapping.RootClass.validate（RootClass.java:215）at org.hibernate.cfg.Configuration.validate（Configuration.java:1135）at org.hibernate.cfg.Configuration。 buildSessionFactory（Configuration.java:1320） at org.hibernate.cfg.AnnotationCo nfiguration.buildSessionFactory在 org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory（LocalSessionFactoryBean.java在 org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory（LocalSessionFactoryBean.java:860）（AnnotationConfiguration.java:867） ： 779） 在 org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet（AbstractSessionFactoryBean.java:211） 在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory.java:1477） 在 有機.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCap ableBeanFactory.java:1417） ...... 56多個