java ee architecture tutorial

"Introduction"The Java EE is a completely different technology architecture than the traditional application development, including many components, which can simplify and standardize the development and deployment of the application system, inand improve the portability, security and reuse value.Java EE Core is a set

1. Layered model for Java EE applications1.1. The Java EE architecture pattern can be broadly divided into the following layers:>> domain object layer: This layer is composed of Pojo (Plain old Java object, common, traditional

Servlet engine:apache tomcat/6.0.262010-8-20 21:41:10 Org.apache.coyote.http11.Http11Protocol StartInfo: Starting Coyote http/1.1 on http-80802010-8-20 21:41:11 org.apache.jk.common.ChannelSocket InitInfo: jk:ajp13 Listening on/0.0.0.0:80092010-8-20 21:41:12 Org.apache.jk.server.JkMain StartInfo: Jk running id=0 time=0/968 config=null2010-8-20 21:41:12 Org.apache.catalina.startup.Catalina StartInfo: Server Startup in 5414 MS2010-8-20 21:43:31 Org.apache.catalina.core.StandardContext ReloadInfo:

1 Java EE IntroductionThere are three versions of the Java platform, namely javase (java Platform, standard Edition), javaee Platform, Enterprise editi On) and javame (Java Platform, Micro edititon). javase formerly known as span style= "font-family: ' Times New Roman ';" >

in. NET in the world, the request and the session such objects of concern is far less than the attention of page, from the Jin River Brother post can be seen. Asp. NET development reduced the difficulty of development, but to some extent hindered the developer to the Web ApplicAtion's overall grasp, as the spring fish Brother's feedback mentioned, too entangled in the relationship between the pages, "not conducive to the overall structure of the system good design." The

APIs (application programming interfaces) for developing and running portable, robust, scalable, reliable, and secure server-side applications.Some of the basic components of Java EE include: Enterprise JavaBeans (EJB): a managed, server-side component architecture for encapsulating application business logic. EJB technology accelerates and simplifies t

WebLogic application server and the novice of Java EE, or those who want to know what the benefits of Java EE, Project managers and system analysts, I believe this article must be very valuable reference. macro Impressions: Distributed architecture and

. However, the size and complexity of Java EE makes development and testing extremely difficult. Traditional Java EE applications often rely heavily on services that are available through the jndi of the container. This means that a large number of direct jndi lookups are required or that the service locator mode is us

now! In fact, Java EE 6 Web profile is enough. If you do not try JavaEE 6, you cannot really feel EE 6. benefits for development.Application Server The portability of server is too mysterious! Really? How many people deploy applications on different application servers after splitting them? Oh, I have seen that this means that the 100% perfect application 0Chan

= Response.getwriter ();//use "out" to send the reply to the browser}}Comparison of Java servlet and JSPSimilaritiesare based on Java technology, all of Java's features are inherited, and all Java APIs can be usedWork similar: JSP code is first converted to servlet code by the JSP container and then compiled into a classBoth have the same level of work in the

Java EE introduction Java EE basic architectureThe birth of Java EE is to solve the disadvantage of traditional C/s architecture: The client is bloated and poor in expansibility.

Java 2 Platform Enterprise Edition (EE) is a platform through which you can develop, submit, and manage N-tier applications that are server-centric. The Java EE platform is based on a successful java-based 2 platform and is dedicated to the development of enterprise-class bu

Why should we talk about exception handling in the Java EE project? Perhaps many Java beginners want to say: "Exception handling is not try....catch...finally?" Who's going to do this? ”。 The author in the beginner Java also think so. How do I define an exception class in a multi-tiered

appropriate description, and that people are The emphasis on the AOP focus on spring, which focuses on its AOP framework, is somewhat misleading, but it also highlights another interesting feature of spring.Spring also provides solutions to the MVC Web framework, but you can also integrate your familiar MVC Web framework with spring, such as struts, webwork, and so on, all of which can be integrated with spring into your own solution. Spring also provides other aspects of integration, such as t

server-side Java applications. Built on the Java SE, Java EE provides Web services, component models, management, and communication APIs that can be used to implement enterprise-class service-oriented architecture (service-oriented Arch