struts2+hibernate删除报空,attempt to create delete event with null entity
推荐回答(2个)
在删除的时候需要做个判断,当删除对象不为空时,才执行删除操作!
attempt to create delete event with null entity 分析及解决
srtuts,spring连续删除的问题
很明显 你删除了 一条不存在的记录 这种错误 可能是你ID传值有误 还有可能就是你重复提交 删了一次 第二次 接着删 肯定报错了
1. 描述
删除一个对象后,按F5刷新 ,出现错误。MyEclispe控制台下异常显示:
java.lang.IllegalArgumentException: attempt to create delete event with null entity
并且浏览器地址还是指向那个被删除的对象。如删除id=30的实体后,浏览器地址为
2. 分析
请参照:!fc609e3f70f965cf!247.entry
返回查询结果部分的问题,也就是说,是:删除记录之后返回的记录集没有刷新。删除的实体在结果集中没有清除。在刷新页面时,将前一form提交的内容都作为hidden又全传了回来,且是不断累加的。
3. 解决方法
在转到新界面时,刷新界面。
只需要修改sttruts.xml中delete action的配置。在delete action的中加入一个参数redirect="true"。 redirect默认值是false。
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