最后的几个园豆了，各位帮帮忙吧
/
删除部门
*/
public String delete() throws Exception {
MessageBean messageBean = null;
try {

        Dept de = new Dept();
        de.setDeptId(deptId);
        de.setDeptName(deptService.getDept(de.getDeptId()).getDeptName());
        if(de.getChildren().size()!=0){
            for(Dept dept:de.getChildren()){
                
                deptService.deleteDept(dept);
                
            }
        }   
        
        deptService.deleteDept(de);
        //添加删除操作记录
        journalService.addOperationJournal(request, "部门删除", "删除内容："+de);
        
        
        
        map.put("success", true);
    } catch (Exception e) {
        e.printStackTrace();
        map.put("success", false);
        map.put("message", e.getMessage());
    }

    GsonUtil.writeToResponse(map, false);
    return NONE;
}

我要在删除里面添加操作记录，但是这里重新将对象初始化了，如果我用之前的就会报错，求助各位大佬，这应该怎么写，初始化的对象里面只有id，但是如果我用这个id调用service中的通过id查询查询的方法就会报错
//保存部门名称
de.setDeptName(deptService.getDept(de.getDeptId()).getDeptName());

这是报的错
Caused by: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.gyes.system.dept.bean.Dept#02]
at org.hibernate.engine.StatefulPersistenceContext.checkUniqueness(StatefulPersistenceContext.java:638)
at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:120)
at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:73)
at org.hibernate.impl.SessionImpl.fireDelete(SessionImpl.java:956)
at org.hibernate.impl.SessionImpl.delete(SessionImpl.java:934)
at org.springframework.orm.hibernate3.HibernateTemplate$25.doInHibernate(HibernateTemplate.java:843)
at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406)
... 120 more