Exception_02

来源：互联网发布：淘宝不同店铺重复铺货编辑：程序博客网时间：2024/04/29 22:55

6.org.apache.jasper.JasperException: /user/bussupdate.jsp(141,6) Attribute selected invalid for tag option according to TLD

标签错误

17:16:39,563 ERROR AbstractFlushingEventListener:301 - Could not synchronize database state with session

org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: netctoss.entity.Users

java.lang.IllegalArgumentException: No bean specified

表单ActionForm 读取错误

在edit时，因为 userServices对象修改时，要通过两个属性来表达

poperty 是为保存修改时来用的，因为他有两个外键ID,

而显示在页面上要用request.setAttribute() 方法传到页面上，用EL表达式来显示

javax.servlet.jsp.JspException: Getter for property userServices.price.name threw exception:

org.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed

继承自泛型的findByPK() 方法，没有join fetch

要重载该方法

10.

javax.el.PropertyNotFoundException: Property 'id' not found on type java.lang.String

因为<c:ForEach item="${}">