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java开发都需要学什么

时间:2014-04-24 14:56:11      阅读:494      评论:0      收藏:0      [点我收藏+]
1.java基础 2.JSP+Servlet+JavaBean 

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环节主要

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懂流程

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MVC而已 别往深了研究 现

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开发基本

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模式 3.Struts+Hibernate+Spring 

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开发

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主流技术 把每

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都搞清楚 哪

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框架

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 4.Ajax(

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好学学 

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多公司都注重

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用3+4 做

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例子 

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要实现功能 关键

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知道

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时候 该用

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 流程

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 面试会问及

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何学习 Java

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问题

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我已经学习了J2SE

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样才能转向J2EE?

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我看完了Thinking in Java

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学习J2EE了

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?

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有了写

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篇文章

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想法

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希望能帮助初学者少走

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些弯路

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也算

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对自己几年来学习Java

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总结吧

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开始之前有必要再讨论

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下J2ME

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J2SE

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J2EE

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些概念

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J2ME

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The Micro Edition of the Java 2 Platform

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主要用于嵌入式Java

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手机

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PDA等等

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J2SE

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Java 2 Platform

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Standard Edition

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我们通常所说

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JDK(Java Development Kit)包含

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J2EE

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基础

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J2EE

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Java 2 Platform

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Enterprise Edition

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所谓

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企业级Java

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些只

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从API级别上

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划分

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实际上Sun给J2EE

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定义

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:开发基于组件

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多层

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企业级应用

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规范

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各种

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技术定义

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Java

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规范

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使

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技术结合起来

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Java平台上构建强壮

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企业级应用

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点来看

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J2EE

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概念应该

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涵盖J2ME

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J2SE

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典型

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J2EE应用

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网上商店

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支持web方式下订单

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也支持手机下订单

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必须用

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J2SE

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J2ME

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所谓

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从J2SE转向J2EE

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问题了

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者包含

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范围更广而已

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来看看Sun给出

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J2EE 相关技术主要分

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几大块

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1. Web Service技术
- Java API for XML Processing (JAXP)
- Java API for XML Registries (JAXR)
- Java API for XML-based RPC (JAX-RPC)
- SOAP with Attachments API for Java (SAAJ)
2. 组件模型技术(Component Model Technologies)
- Java Servlet
- JavaServer Pages
- JavaServer Faces
- Enterprise JavaBeans
- Java Message Service
- J2EE Connector Architecture
3. 管理技术(Management Technologies)
- J2EE Deployment Specification
- J2EE Management Specification
- J2EE Client Provisioning
- Java Authorization Contract for Containers
4. 其

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相关技术(Other J2EE Technologies) 
- JDBC
- Java Data Objects (JDO)
- CORBA (Java IDL and Java RMI-IIOP)
- JavaMail
- Transactions

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此之多

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技术难免使初学者无所适从

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望而却步

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即使

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位经验丰富

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J2EE开发者

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又有几

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人敢说J2EE相关

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技术我都熟练掌握了

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过作

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名普通J2EE应用程序

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开发者来说

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我们只需要重点学习其

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部分技术

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对于其

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部分只要做

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有数

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哪天需要用

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了知道跑哪里去找

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资料

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行了

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观点

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下面

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些技术

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般J2EE应用开发人员所必须熟练掌握

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Java Server Page

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Java Servlet

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Enterprise JavaBean

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JDBC

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Transactions

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还有JAXP等XML相关技术

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Java Message Service

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Java Mail

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JDO等等

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好应该掌握

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Management Technologies

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Connector Architecture等等主要

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给容器提供商

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间件提供商参考

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应用开发者

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需要

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关心

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等用

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了再去学习也

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 、、
Java发展

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按应用来分主要分

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三大块:J2SE,J2ME和J2EE

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三块相互补充

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应用范围

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 J2SE

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Java2

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标准版

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主要用于桌面应用软件

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编程; J2ME主要应用于嵌入

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系统开发

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手机和PDA

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编程; J2EE

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Java2

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企业版

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主要用于分布式

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网络程序

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开发

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电子商务网站和ERP系统

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先学习j2se 要学习j2ee

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要先学习j2se

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刚开始学习j2se先建议

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要使用IDE

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渐渐

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过渡

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使用IDE开发

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毕竟用

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方便嘛

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学习j2se推荐两本书

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《java2核心技术

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二卷》

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《java编程思想》

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《java模式》

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《java编程思想》要研读

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精读

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段时间

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基本功学习

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时间会

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要看学习者自身水平而定

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要被IDE纠缠 

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学习java和j2ee过程

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会遇

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五花八门

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IDE

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要被

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们迷惑

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学JAVA

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时候

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要学语言本身

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东西

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要太

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意IDE

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附加功能

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JAVA编程

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同IDE之间

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转换

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容易

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过于

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意IDE

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功能反而容易耽误对语言本身

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理解

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目前流行

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IDE有jbuilder

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eclipse和eclipse

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加强版WSAD

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用好其

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推荐从eclipse入手j2ee

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Jbuilder更适合于写j2se程序

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选择和学习服务器使用配置 当

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有了j2se和IDE

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经验时

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开始j2ee

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学习了

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web服务器:tomcat

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勿庸置疑

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tomcat

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学习web服务首选

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而应用服务器目前主要有三

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:jboss、weblogic、websphere

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多项目开始采用jboss

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并且有大量

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公司开始做websphere或weblogic向jboss应用服务器

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移植(节省成本)

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里要说

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学习tomcat和jboss我认

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首选

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容易上手

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学习服务器使用配置

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好去询问有经验

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人(有条件

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们或许

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能解决问题

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自己上网摸索

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能要

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两天(我

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干过

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种傻事)

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我们应该把主要时间放

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学习原理和理论上

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项特定技术

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使用永远代替

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知识和学问

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学习web知识

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做电子商务网站等时

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能要充当几

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角色

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还要学习: html

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能要用

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dreamwave等IDE

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 Javascript

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学会简单

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数据校验

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数据联动显示等等
J2eeAPI学习 学习j2eeAPI和学习服务器应该

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迭代

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过程

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 先学习jsp和servlet编程

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方面

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我建立看oreilly公司

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两本《jsp设计》和《java servlet编程》

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oreilly出

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书总

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本优秀

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佩服

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 学习jdbc数据库编程

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j2ee项目大多都

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MIS系统

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访问数据库

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核心

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本应属于j2se学习

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里拿出来强调

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 学习jndi api

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和学习ejb

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结合起来

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 学习ejb api

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推荐书《精通ejb》 经过上面

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学习

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大概

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对付

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应用了

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 有人说跟着sun公司

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《j2ee tutorial》

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路学下来

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学习ejb设计模式和看代码(

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重要) 设计模式

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练内功

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其重要性

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说吧

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会用设计模式

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写出

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堆使用了ejb

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垃圾

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有慢又

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堆bug

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其结

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用ejb实现(ejb

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等于j2ee) 无论学习

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语言

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都应该看大量代码

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代码量

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定数量

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好j2ee

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 目前有

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多开源

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工程

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教材: jive论坛 petstore sun公司 dune sun公司 等等

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研读

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自己

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工程

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J2ee其

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学习 当

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渐渐对j2ee了解

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定深度时

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要开始关注当前领域

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些技术变化

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J2ee

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块百家争鸣

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领域

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大家都

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里提出自己

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解决方案

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structs

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hiberate

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ofbiz等等

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学习

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些东西要

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项目和目标而定

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预先补充

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下未尝

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用涉及太深

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毕竟学习原理和理论

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重要

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目前常见j2eeAPI JavaServer Pages(JSP)技术1.2 Java Servlet技术2.3 JDBC API 2.0 Java XML处理API(JAXP)1.1 Enterprise JavaBeans技术2.0 Java消息服务(JMS)1.0 Java命名目录接口(JNDI)1.2 Java事务API(JTA) 1.0 JavaMail API 1.2 JavaBeans激活架构(JAF)1.0 J2EE连接器体系结构(JCA)1.0 Java认证和授权服务(JAAS)1.0 学习上面

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某些API要

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项目而定

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了解所有

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们总之

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有好处

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 上面印证了大家说

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java语言本身

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难学

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技术太多

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学java

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费劲

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回想

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基本上每

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初学者

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刚学习java

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时候

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能都会问别人

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知道

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方法(api)

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包里

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呵呵

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唯手熟尔

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java开发都需要学什么,布布扣,bubuko.com

java开发都需要学什么

原文:http://www.cnblogs.com/ejllen/p/3683156.html

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