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java技术学习目录

1.J2SE -语法基础 数组 模板 -面向对象 -常用工具类 -文件操作 DOM NIO -网络与多线程 2.WEB J2EE -Struts 3.JDBC 持久层 -Hibernate -ibatis /mybatis -JPA 4.缓存 -Memcached/Redis/MongoDB SERVER -tomcat -resin

SSH框架一般指的是Struts、Spring、Hibernate,后来Struts2代替了Struts。最近5年,Struts2已经被Spring MVC代替,而Hibernate基本也被iBatis/MyBatis代替。

所以你真正需要了解的是Spring,Spring你需要了解两个概念AOP和IOC,更进一步就是Spring的核心技术“动态代理”。

持久层框架看看Hibernate/iBatis/MyBatis,研究一下Spring的数据库事务管理,各个持久层框架式如何实现ORM的,了解至少一种缓存框架,知道什么是数据库连接池。和数据库的交互最核心的不是ORM,而是掌握和数据库相关的能力,比如数据库编程、SQL优化、对范式的理解。

MVC框架Struts2和Spring MVC,你需要知道他们在web.xml文件里配置了一些什么,Struts2/Spring MVC接到前台请求之后经过哪些步骤之后转到Action/Controller,return之后Struts2/Spring MVC又作了些什么。还有就是Filter、Listener和Struts2/Spring MVC的拦截器各有什么特点,适合处理什么样的问题。

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