EJB和Java Beans的区别是什么啊

javabeans是最早的技术，后来在其上发展为Enterprise Javabean

可以看看我的教程

完全不同的。

EJB 是SUN 提供的一种企业应用架构。主要分session, entity
JAVABEAN 是用来封装Business logic,它主要跟JSP/Servlet使用

RTFM

纠正一下我上次说的东西。

EJB is a server-side component architecture.
JavaBean is java classes that has get/set methods, it is reusable java component with properties,evens,and methods.

JavaBean is smaller that Enterprise JavaBean. we can use javabeans to assemble larger components or to build entire applications. JavaBean is developement component instead of deployable component. We don't deploy javabean,rather, JavaBean helps us construct larger software that is deployable. And because javabean can not be deployed, Javabean doesn't need to live in a runtime environment and be initalized as well.