超轻量级的持久化解决方案 模仿EJB3的持久化过程 但是不用EJB3环境 通过反射EJB3规范的持久类 自动完成持久战类到数据库的查询更新插入删除操作-Ultra-lightweight and durable solutions to mimic the process of EJB3 persistence EJB3 environment but do not need to EJB3 specification through the reflection type of auto-co