javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: N

环境Hibernate+jpa2 ，新增加int 字段，出异常如下

javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: Null value was assigned to a property of primitive type setter of......

原因：bean中新添加的字段是int类型

private int employeeid;
@Column(name=calendar_employeeid)
public intgetEmployeeId() {
return employeeId;
}

public void setEmployeeId(int employeeId) {
this.employeeId = employeeId;
}

 
当数据库中该字段为null时，就会报错

解决方法1：该bean 中相应字段int 改为Integer

@Column(name=calendar_employeeid)
public Integer getEmployeeId() {
return employeeId;
}

public void setEmployeeId(Integer employeeId) {
this.employeeId = employeeId;
}

 
解决方法2：数据库中相应字段默认不为null