java - 在 Hibernate 中将集合中的映射异常另存为成员变量

Question

出现以下异常，为什么我不知道，请帮我解决它

Exception in thread "main" org.hibernate.MappingException: Could not determine type for: java.util.List, at table: USER_DETAIL, for columns: [org.hibernate.mapping.Column(listOfAddress)]

 @Entity 
 @Table (name="USER_DETAIL")
public class UsersDetail {

private int id;                                         //
@Column (name ="NAME")
private String name;
@ElementCollection
private List<Address> listOfAddress = new ArrayList<Address>();


@Id @GeneratedValue
@Column (name ="ID")
public int getId() {
    return id;
}
public void setId(int id) {
    this.id = id;
}
public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public List<Address> getListOfAddress() {
    return listOfAddress;
}
public void setListOfAddress(List<Address> listOfAddress) {
    this.listOfAddress = listOfAddress;
}}

Answer 1

您好，我认为问题出在注释的位置上。您正在使用方法访问策略(由@Id注释确定)。将任何与 JPA 相关的注释放在每个 getter 的正上方，而不是字段成员的上方。

如下:-

@Column (name ="NAME")
public String getName() {
    return name;
}

@ElementCollection
public List<Address> getListOfAddress() {
    return listOfAddress;
}