Overview of the Java Persistence API Describe the basics of Object Relational Mapping (ORM) Define the key concepts of the Java Persistence API (entity, entity manager, and persistence unit) Introducing the Auction Application Describe the auction ap…

Introduction to Java EE Gain an understanding of the Java Platform, Enterprise Edition (Java EE) Examine the Java EE application architecture Examine Java EE container services Examine the EJB component types Evaluate the EJB Lite Container Compare J…

Create an SOAP web service in a servlet container Create a RESTful web service in a servlet container Create a SOAP based web service implemented by an EJB component Create a RESTful web service implemented by an EJB component Configure JavaEE securi…

1: hash map, hash tables 的区别 The HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and permits nulls.   2: class loader有几种,它们都干嘛,从哪里load class,以及它们的关系是啥. 为啥要自己做classloader ? Class loaders may typically be used by secu…

Section 1: Essentials of JSF2.0 Identify the features of JSF such as Facelets, BookMarkable View, AJAX support and the benefits they bring in Identify the life cycle stages of JSF, flow of request processing, and purpose of FacesContext Design XHTML…

继上一篇文章http://www.cnblogs.com/EasonJim/p/6181981.html中说的区别,其实分析的不够彻底,因此再次在这里做详细的分析. 零.Java与Sun.Oracle发展历史: 1.说明:最开始Java是Sun公司的,然后是Oracle(甲骨文)收购了Sun(太阳微系统/Sun Microsystems),最后就是Java变成Oracle了,收购时间为:2009-04-20:所以下文中提到的Sun和Oracle都是具有历史上的关系. 2.参考: http://t…

REST has made a lot of conveniences when it comes to implementing web services with the already available HTTP protocol at its disposal. By just firing GET, POST and other HTTP methods through the designated URL, you’ll sure to get something done thr…

JAVA EE 运行环境配置(包含JAVA SE) 1.下载并安装jre-7u7-windows-i586.exe (最新的JAVA运行环境) 2.下载并安装java_ee_sdk-6u4-jdk7-windows.exe (Java EE & GlassFish Server的安装包)位置: C:\Program Files\glassfish3 3.系统环境变量配置:JAVA_HOME  C:\Program Files\glassfish3\jdk7 (安装目录)classpath  .;…

转自:https://blog.csdn.net/tjiyu/article/details/53148174 各种容器与服务器的区别与联系 Servlet容器 WEB容器 Java EE容器 应用服务器 WEB服务器  Java EE服务器 平时我们经常看到各种容器名称:Servlet容器.WEB容器.Java WEB容器.Java EE容器等,还有各种服务器名称:应用服务器.WEB服务器.WEB应用服务器.Java WEB应用服务器.Java EE服务器等,这么多相似名称,难以弄明白它们之间…

定义 Java Persistence API JPA通过JDK 5.0注解或XML描述对象-关系表的映射关系,并将运行期的实体对象持久化到数据库中.[编辑本段]起源 Sun引入新的JPA ORM规范出于两个原因:其一,简化现有Java EE和Java SE应用的对象持久化的开发工作:其二,Sun希望整合对ORM技术,实现天下归一. JPA由EJB 3.0软件专家组开发,作为JSR-220实现的一部分.但它不囿于EJB 3.0,你可以在Web应用.甚至桌面应用中使用.JPA的宗旨是为POJO提供…