Kuldeep presentation ppt

PRESENTATIONON

Technical training at Road Ahead Technologies

By Kuldeep Khichar(7th Sem IT)

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TOPICS ON WHICH I PURSUED MY TRANNING

JAVAJ2EE ->SERVLET ->JSP ->STRUTSONLINE EXAM PROJECT

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• The Java platform has attracted more than 6.5 million software developers.

• Java technology's versatility, efficiency, platform portability, and security make it the ideal technology for network computing.

• From laptops to datacenters, game consoles to scientific supercomputers, cell phones to the Internet, Java is everywhere!

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Why Java?It’s the current “hot” languageIt’s almost entirely object-orientedIt has a vast library of predefined objects and

operationsIt’s more platform independent

this makes it great for Web programmingIt’s more secureIt isn’t C++

Umesh Bellur

High-EndServer

Java Technology Enabled Desktop

WorkgroupServer

Java Technology Enabled Devices

Java Virtual MachineThe .class files generated by the compiler are

not executable binariesso Java combines compilation and

interpretationInstead, they contain “byte-codes” to be

executed by the Java Virtual Machineother languages have done this, e.g. UCSD

PascalThis approach provides platform

independence, and greater security

• Comments are almost like C++• Primitive data types are like C• Declarations look like C• Expressions are like C(Assignment statements ,

Arithmetic operators, Boolean operators, Comparisons operators

• JAVA does not have pointers or pointer arithmetic• Control statements are like C

but conditions must be boolean

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• In C, almost everything is in functions• In Java, almost everything is in classes• There is often only one class per file• There must be only one public class per file• The file name must be the same as the name of that

public class, but with a .java extension

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• Java is case-sensitive; maxval, maxVal, and MaxVal are three different names

• Class names begin with a capital letter• All other names begin with a lowercase letter• Subsequent words are capitalized: theBigOne• Underscores are not used in names• These are very strong conventions!

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• Stands for “Java 2, Enterprise Edition”• It is a collection of standards

o JDBC, JNDI, JMX, JMS• It is a component technology

o Enterprise JavaBeans• It is an “application server”

o Following in the footsteps of Component Transaction Monitors

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• High Availability• Security• Reliability• Scalability

…of Enterprise Information Services (EISs),…Usually in a multitier environment.

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J2EE/ Session 3/Slide 12 of 49

Various models of architecture

Client-ServerClient-ServerClient-ServerClient-Server

Traditional n-Tier

Component-based n-TierComponent-based n-Tier

LayeredLayered

Which architecture would suit which scenario??

Depends on

Distributed nature of applicationScalabilityPerformance

Memory Management

J2EE/ Session 3/Slide 13 of 49

Client-Server ArchitectureCLIENT SERVER

Business Logic

Presentation Logic

Application

Data

Clear division between Application and Data

Entire processing load on client Server acts as traffic controller

2-Tier Architecture2-Tier Architecture

J2EE/ Session 3/Slide 14 of 49

PresentationLogic

BusinessLogic

DATA

CLIENT TIERMIDDLE TIER/

APPLICATION TIER DATA/EIS TIER

Receives request for data, retrieves it, and returns it to client

J2EE/ Session 3/Slide 15 of 49

Browser

Firewall

Application Logic= Presentation logic + Business Logic(No physical demarcation between the two)

Infrastructure services provide additional functionalities required by application, such as messaging services and transactional services.

J2EE/ Session 3/Slide 16 of 49

Component A

Component B

Component C

Database

MIDDLEWARE

Presentation

LayerBusiness L

ogic

Layer

Database

Middleware

Layer

Database

Layer

JDBC-ODBC Bridge, perhaps

• Java Servlet technology provides Web developers with a simple, consistent mechanism for extending the functionality of a Web server and for accessing existing business systems.

• A servlet can almost be thought of as an applet that runs on the server side--without a face.

• Java servlets make many Web applications possible.

• Servlet can process data which was POSTed over HTTPS using an HTML FORM, say, an order-entry, and applying the business logic used to update a company's order database.

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Hierarchy :

Servlet

HttpServlet|GenericServlet

MyServlet

Umesh Bellur

What is JSP Technology?Enables separation of business logic from

presentationPresentation is in the form of HTML or

XML/XSLTBusiness logic is implemented as Java

Beans or custom tagsBetter maintainability, reusability

Extensible via custom tagsBuilds on Servlet technology

• Apache Tomcat is developed in an open environment and released under the Apache Software License.

• Apache Tomcat is an open source software implementation of the Java Servlet and Java Server pages technologies.

• Apache Tomcat is planned to be a collaboration of the best-of-breed developers from around the world.

Fraud Management System

• Apache Tomcat is developed in an open environment and released under the Apache Software License.

• Apache Tomcat is an open source software implementation of the Java Servlet and Java Server pages technologies.

• Apache Tomcat is planned to be a collaboration of the best-of-breed developers from around the world.

Fraud Management System

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ServersA server is a computer that responds to requests

from a clientTypical requests: provide a web page, upload or

download a file, send email

A server is also the software that responds to these requests; a client could be the browser or other software making these requests

Typically, your little computer is the client, and someone else’s big computer is the serverHowever, any computer can be a server It is not unusual to have server software and client

software running on the same computer

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ApacheApache is a very popular server

66% of the web sites on the Internet use ApacheApache is:

Full-featured and extensibleEfficientRobustSecure (at least, more secure than other servers)Up to date with current standardsOpen sourceFree

Why use anything else?

• OPERATIONALo Simple and informative GUIo Easily employed on User & Client side of

application• TECHNICAL

o Build on J2EE(Servlet & JSP) and ORACLE supported by win 7,XP,VISTA,etc• ECONOMIC

o Cost efficient o Consumes low memory space

• This project can be upgrade with the use of Struts Framework and use of ORACLE 11g as database to further improve security & reliability

• The next stage of development will be for the whole country

• It can be further upgraded according to the need of Public or Private Sector demands

• This Training has provided us the experience of working in a company environment

• Development of this Project not only provide the basic knowledge of tools utilized but also working with a PROJECT THINK APPROACH

….Thank you for your kind attention….

Queries ? ?

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