Download INTRODUCTION TO J2EE

INTRODUCTION TO
J2EE / JEE
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JAVA IS EVERYWHERE
Mobiles
Bullet trains
Banks
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JAVA IS EVERYWHERE
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Mars Rover
Standalone/PC based applications
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Standalone/PC based applications
Application
DB
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Enterprise applications spread across the globe
The need for CLIENT
and SERVER Applications
started evolving
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CLIENT AND SERVER RELATIONSHIP
Request
SERVER
Response
CLIENT
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Our Dear DEVELOPERS Responsibilities
Networking code to communicate from client to
server
 Security code to ensure the confidentiality of data
Programming the server to give high performance
Pooling capabilities
…and at last is the business logic what client has asked 
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Identification of the common requirements….
Sun has released the JSR specification in 1999 for the container development
Some of the vendors:
•BEA Systems
•IBM
•Apache
•JBOSS
And many more…
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Component and Container
Component is the code by the developer
which lives in the Container
Container gives some of the services like networking,
clustering, High availability, connection pooling etc., for
the components
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Container services for the Component
Networking
Efficient Multithreading
Component
Connection pooling
Clustering
Security
High availability
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High performance
Container
Container and component relationship goes like a fish and an aquarium
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Two-Tier architecture
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THREE –TIER ARCHITECTURE
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MVC Architecture
CONTROLLER
(servlet)
CLIENT
HTML/JSP
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MODEL
(JAVA
BEANS/ EJB)
MODEL VIEW CONTROLLER
DB
Web based Server and client service
CLIENT
Web
server
Container
SERVER
Index.html
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DB
List of API in J2EE
1.SERVLETS
2.JSP
3. JSTL
4. JNDI
5. JDBC
6. JMX
7. RMI-IIOP
8. EJB3
9.JAVA-IDL
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10. JMS
11. JCA
12. JAX-RPC
13. JAXP
14. STAX
15. JSF
16. JAAS
DEVELOPMENT of makeMyTrip.com
JMS
CLIENT
SERVLET
JSP
EJB/MODEL
JAX-RPC
SOAP
SOAP
J
D
B
C
DB
RMI-IIOP
JAVA-IDL
JCA
CORBA
Ari Deccan s .NET
application
BANK
INDIAN AIRLINES
SPICE JET EJB
CONTAINER
AIR INDIA
ON MAINFRAMES
Two kinds of Containers
SERVLET CONTAINERS
FOR
JSP,
SERVLET
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APPLICATION CONTAINERS
FOR
Servlets, EJB, JNDI etc
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