一:程序
二:分析
1:在实体中增加字段version
@Versionprivate int version;
2:Account a1 = (Account) session1.load(Account.class, 1);
Account a2 = (Account) session2.load(Account.class, 1);
version默认为0
当session1.getTransaction().commit();version字段增加1,从0变成1
当session2.getTransaction().commit(); 原来获取的version是0,,但是现在数据库已经完成1,不匹配,就会报错
org.hibernate.StaleObjectStateException:Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect):[com.hibernate.model.Account#1]
可我,仍在旅行的路上徘徊。等待着每一辆经过的车,让我走到更远的地方。