I have hibernate @OneToMany mapping I am getting the mentioned error. Does not understand the reason. As getters and setters are public
Below are the entities
@Entity
@Table(name="USER_DETAILS")
public class User implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
@Id
@Column(name="USER_ID")
@GeneratedValue(strategy=GenerationType.AUTO)
private int id;
@Column(name="USER_FIRSTNAME",nullable=false, length=50)
private String userFirstName;
@Column(name="USER_LASTNAME",nullable=false, length=50)
private String userLastName;
@Column(name="USER_MIDDLENAME",length = 30)
private String userMiddleName;
@Column(name="USER_AGE")
private int userAge;
@Column(name="USER_SEX")
private String userSex;
@OneToMany(cascade=CascadeType.ALL, mappedBy="userAddress", targetEntity=Address.class)
private Set<Address> address = new HashSet<Address>();
public String getUserFirstName() {
return userFirstName;
}
public void setUserFirstName(String userFirstName) {
this.userFirstName = userFirstName;
}
public String getUserLastName() {
return userLastName;
}
public void setUserLastName(String userLastName) {
this.userLastName = userLastName;
}
public String getUserMiddleName() {
return userMiddleName;
}
public void setUserMiddleName(String userMiddleName) {
this.userMiddleName = userMiddleName;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public int getUserAge() {
return userAge;
}
public void setUserAge(int userAge) {
this.userAge = userAge;
}
public String getUserSex() {
return userSex;
}
public void setUserSex(String userSex) {
this.userSex = userSex;
}
public Set<Address> getAddress() {
return address;
}
public void setAddress(Set<Address> address) {
this.address = address;
}
}
@Entity
@Table(name = "ADDRESS")
public class Address implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
@Id
@Column(name = "ADDRESS_ID")
@GeneratedValue(strategy=GenerationType.AUTO)
private int id;
@Column(name = "ZIP_CODE")
private String zipCode;
@Column(name="ADDRESS_USER_ID", insertable=false, updatable=false)
private Long addressUserID;
@Column(name = "ADDRESS_SEC")
private String addressSec;
@Column(name = "STREET")
private String street;
@Column(name = "CITY")
private String city;
@Column(name = "COUNTRY")
private String country;
@ManyToOne(cascade=CascadeType.ALL, targetEntity=User.class)
@JoinColumn(name="ADDRESS_USER_ID")
private Set<User> userAddress = new HashSet<User>();
public Long getAddressUserID() {
return addressUserID;
}
public void setAddressUserID(Long addressUserID) {
this.addressUserID = addressUserID;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getZipCode() {
return zipCode;
}
public void setZipCode(String zipCode) {
this.zipCode = zipCode;
}
public Set<User> getUserAddress() {
return userAddress;
}
public void setUserAddress(Set<User> userAddress) {
this.userAddress = userAddress;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getAddressSec() {
return addressSec;
}
public void setAddressSec(String addressSec) {
this.addressSec = addressSec;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
}
Part of Stack Trace are:
线程“main”org.hibernate.PropertyAccessException中的异常:无法通过com.java.hibernate.practise.User.id 的反射getter获取... org.hibernate的字段值.property.DirectPropertyAccessor $ DirectGetter.get(DirectPropertyAccessor.java:62) 引起:java.lang.IllegalArgumentException:无法将int字段com.java.hibernate.practise.User.id设置为java.util.HashSet ...
我使用hibernate.hbm2ddl.auto = cerate-drop
生成模式
请指导一下。
答案 0 :(得分:0)
一般来说,当我们使用1..n双向实体映射时,一般来说,拥有的一方,多边,应该只有一个实例引用一边的对象(不是一个集合 - 这将是多对多的),并且要使用的连接列是on on class类的主键。我们不需要像你一样在许多方面明确使用FK列。
所以如果这是你的关系User [1]..[N] Address
,那么你应该有更像
public class User {
...
@OneToMany(mappedBy = "user", cascade=CascadeType.ALL)
private Set<Address> addresses;
}
public class Address {
// private Long addressUserID; // Don't need this property. We get it below
...
@ManyToOne
@JoinColumn(name = "USER_ID")
private User user;
}