2019年7月14日
异常 : identifier of an instance of com.mi.domain.Department was altered from 2 to 1
摘要： 异常提示org.springframework.orm.hibernate4.HibernateSystemException: identifier of an instance of com.mi.domain.Department was altered from 2 to 1; nested 阅读全文
posted @ 2019-07-14 16:28 Mlek 阅读(1583) 评论(0) 推荐(0)
判断字符串不为空
摘要： private Boolean hasLength(String str){ return str != null && !"".equals(str.trim());} 阅读全文
posted @ 2019-07-14 08:10 Mlek 阅读(340) 评论(0) 推荐(0)