自己写的关于Struts2+Hibernate的登录Demo，包含搭建的框架，验证码的随机生成，自己陪一下mysql的连接字符串直接用，刚学java的可以看看，比较简洁！-Write your own login on Struts2+ Hibernate Demo, contains fr a me structures, randomly generated code to verify that he accompany what connection string mysql direc