Q:
Error when creating database, while using Hibernate and Spring
I get this error:
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: No identifier specified for entity: com.myproj.domain.user
Caused by: org.hibernate.AnnotationException: No identifier specified for entity: com.myproj.domain.user
at org.hibernate.cfg.InheritanceState.determineDefaultAccessType(InheritanceState.java:277)
at org.hibernate.cfg.InheritanceState.getElementsToProcess(InheritanceState.java:224)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:656)
at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1109)
at org.hibernate.cfg.AnnotationBinder.processIdPropertiesIfNotAlready(AnnotationBinder.java:487)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:654)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:4035)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3985)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1398)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1375)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:707)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:188)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1571)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1509)
... 9 more
My project structure is the following:
The classes are there:
package com.myproj.domain;
import java.io.Serializable;
import java.util.Date;
import javax.persistence.*;
import org.hibernate.annotations.Entity;
import org.hibernate.annotations.GenericGenerator;
import org.springframework.stereotype.Component;
@Entity
@Table(name = "user", schema = "mySchema")
public class User implements Serializable{
private static final long serialVersionUID = 7768084802394263789L;
private Long id;
private String name;
private String surname;
private String email;
private String password;
private Integer age;
private String city;
private String userName;
public User() {
}
@Id
@Column(name = "id")
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Basic
@Column(name = "name")
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Basic
@Column(name = "surname")
public String getSurname() {
return surname;
}
public void setSurname(String surname) {
this.surname = surname;
}
@Basic
@Column(name = "email")
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
@Basic
@Column(name = "password")
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Basic
@Column(name = "age")
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
@Basic
@Column(name = "city")
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
@Basic
@Column(name = "userName")
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
}
package com.myproj.domain;
import java.util.Date;
import javax.persistence.*;
import org.hibernate.annotations.Entity;
import org.hibernate.annotations.GenericGenerator;
import org.springframework.stereotype.Component;
@Entity
@Table(name = "address", schema = "mySchema")
public class Address implements Serializable {
private static final long serialVersionUID = -871088235499781298L;
private Long id;
private String street;
private String city;
private Long zip;
private String houseNumber;
private String houseType;
private Date date;
public Address() {
}
@Id
@Column(name = "id")
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Basic
@Column(name = "street")
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
@Basic
@Column(name = "city")
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
@Basic
@Column(name = "zip")
public Long getZip() {
return zip;
}
public void setZip(Long zip) {
this.zip = zip;
}
@Basic
@Column(name = "houseNumber")
public String getHouseNumber() {
return houseNumber;
}
public void setHouseNumber(String houseNumber) {
this.houseNumber = houseNumber;
}
@Basic
@Column(name = "houseType")
public String getHouseType() {
return houseType;
}
public void setHouseType(String houseType) {
this.houseType = houseType;
}
@Basic
@Column(name = "date")
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
}
Can someone help me?
A:
You should either annotate class or one of the properties in class as @Id. In your case you need to use @Id annotation on your Long variable as following:
@Id
@Column(name = "id")
public Long getId() {
return id;
}
Also you should use annotations in the other side as well - User class. Try something like this:
@Entity
@Table(name = "user", schema = "mySchema")
public class User implements Serializable {
private Long id;
private String name;
private String surname;
private String email;
private String password;
private Integer age;
private String city;
private String userName;
@Id
@Column(name = "id")
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Basic
@Column(name = "name")
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Basic
@Column(name = "surname")
public String getSurname() {
return surname;
}
public void setSurname(
