Extjs4 使用store的post方法 引用官网的一句话 Now when we call store.load(), the AjaxProxy springs into action, making a request to the url we configured ('users.json' in this case). As we're performing a read, it sends a GET request to that url (see actionMethods
问题描述 Store update, insert, or delete statement affected an unexpected number of rows ({0}). Entities may have been modified or deleted since entities were loaded. Refresh ObjectStateManager entries. 存储区更新.插入或删除语句影响到了意外的行数({0}).实体在加载后可能被修改或删除.刷新 Objec
页面控件没有做限制.提交后还可以继续点击,造成了在短时间内的多次请求.查看日志两次错误在200ms之内. 错误信息 system.Data.Entity.Infrastructure.DbUpdateConcurrencyException: Store update, insert, or delete statement affected an unexpected number of rows (). Entities may have been modified or deleted s
EF6进行Insert操作的时候提示错误 Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. 1:确认model中是否外键关联问题 解决方案:外键关联不要修改外键表的数据,可以暂是设置NotMapped或者外键model=null处理 2:
前言:前几天在做项目demo的时候,发现有一个很奇怪的现象,就是MyBatis发现更新和插入返回值一直为"-2147482646".无论怎么改,这个值一直不变...是在摸不着头脑,百度和谷歌了一下,有这样的说法原来是由defaultExecutorType设置引起的,如果设置为BATCH,更新返回值就会丢失. If the BATCH executor is in use, the update counts are being lost. 操作:也就是说在spring的配置文件中,只
MongoDB save()方法和insert()方法的区别 首先看官方文档怎么说的 Updates an existing document or inserts a new document, depending on its document parameter save方法有更新和插入两种功能,到底是插入还是更新文档取决于save的参数.那么到底是依赖于哪个参数呢?继续看 If the document does not contain an _id field, then the sa