java无法在休眠状态下保存数据
我正在尝试将数据保存到hibernate,但由于以下错误而无法保存:
12:39:24,006 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (default task-4) Unknown column 'department_id' in 'field list'
请在下面找到问题陈述:
这是我的实体类:
@Entity
@Table(name = "employee")
@Where(clause = "isDeleted = false")
public class Employee extends BaseEntity {
@OneToOne
private Department department;
private int status;
public Department getDepartment() {
return department;
}
public void setDepartment(Department department) {
this.department = department;
}
public int getStatus() {
return status;
}
public void setStatus(int status) {
this.status = status;
}
}
员工表:
id |部门|状态
我插入的数据如下:
@Inject
CrudService<Employee> employeeManager;
Department department = new Department();
// create department and after creating depaerment
department.setDepartment(department);
department.setStatus(1);
department.setId(null);
employeeManager.create(department);
我在保存数据时遇到错误:
insert into employee (isdeleted, last_modification, department_id, status) values (?, ?, ?, ?)
here i can see that my Employee Table conatins department column but hibernate is generating department_id
在内部插入记录
有人能帮我吗?如果您需要更多信息,请回复
# 1 楼答案
首先,我想很多员工都属于同一个部门,所以应该是多部门的。其次,您可以使用JoinColumn指定。。。联接列:
但是我宁愿更改数据库中列的名称,因为
department_id
更清楚地表明该列包含部门ID,因此是外键