hibernate删除问题：not-null property references a null or transient value

org.springframework.dao.DataIntegrityViolationException: 

not-null property references a null or transient value: 

com.crms.bean.Client.employee; nested exception is org.hibernate.PropertyValueException: 

not-null property references a null or transient value: com.crms.bean.Client.employee        root cause 

在hibernate中删除时，传入的对象必须是要有值的。如删除client，在如下代码中：通过

从jsp中传来的参数client.clientId被client接受，this.clientService.findById(client.getClientId())得到对象client。

public String execute() throws Exception

    {

       client  = this.clientService.findById(client.getClientId());

      

        this.clientService.deleteClient(client);

      

       return SUCCESS;

    }

 

Dao中的方法：（只能用这个）

public Client findById(Integer id) {

       //String hql="from Client c where c.client_id="+id;

    return (Client) this.getHibernateTemplate().get(Client.class, id);