1.为什么使用component组件? 当一个表的列数目比较多时,可以根据属性分类,将一个java对象拆分为几个对象. 数据库还是一张表,不过有多个对象与之对应. 2.实例 2.1 Java 对象: public class Person { private int id; private Name name; private Parents parents; public Parents getParents() { return parents; } public void setParen
org.hibernate.HibernateException: Could not parse configuration: /hibernate.cfg.xml at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1542) at org.hibernate.cfg.AnnotationConfiguration.doConfigure(AnnotationConfiguration.java:1035) at
第一次在eclipse上配置hibernate,问题百出啊,比如下面的org.hibernate.HibernateException: Could not parse configuration: /hibernate.cfg.xml问题,知道是 hibernate.cfg.xml配置问题解决有问题,但不知道问题在哪,从Oracle的数据库的链接到po代码,各种找啊. log4j:WARN No appenders could be found for logger (org.hibernat