Weblogic Learning Part1

Difference between webserver and Application Server

1)Web server only provides env to run web application
but
Application Server provide env to run both Web App and Enterprise App.

2)Web server only provides support for web related technologies
but
Application server provide support for any technology from Java J2EE
3)Webserver Example
==================

Apache Tomcat, httpd, IIS from Microsoft, NGINX

Application Server
====================
Websphere,JBOSS,Weblogic,Glassfish,wildfly etc.

4)Web server —->only has —->web container
Application Server —>has —>web container + ejb container

Types of Java Application

1)Standalone Application
2)Enterprise Application
a)Web Application
b)Distributed Application

Client Server Architecture

[MVC]

Controller: Accept the upcoming req from the. [eg:Servlet]

Model : It has business Logic. [eg: JDBC/Ejbs/Hibernet/Spring etc]

View: Give the result to client.[eg: JSPs]

Why Weblogic

1)We can use SOA,OBIEE,OIM/OAM,EBS12,OEM13c etc. with weblogic
2)In 12c we can create multiple tenants/partitions in one domain
3)Weblogic 12c we can also run over Docker Conatiners,Private Clouds, Public clouds etc.
4)can easily create and maintain multiple domain
5)Power-full clustering methodology to balance the load on server instance.
6)Most things are OOBX so very less configurations are required.
7)Very stable and resilient [ie.. can easily be recovered]
8)Easy to configure access level using security relams.

History Of Weblogic

–>In 1995 Paul Ambrose, Bob Pasker, Carl Resnikoff founded weblogic inc.
–>In 1998 BEA System acquired weblogic inc.
—>in 2008 oracle corp. acquired BEA System

Weblogic Versions

Weblogic Tengah —> 1997
Weblogic 3.0 —->1998
Weblogic 4.0 –>1999
Weblogic 5.1 —>2000
Weblogic Server 6.0 –>2001
Weblogic Server 10.0 —>2007

Weblogic Server 10gR3(10.3.0)—>2008
Weblogic Server 11gR1(10.3.1) –>2009
Weblogic Server 11gR1(10.3.6) –>2010
Weblogic Server 12cR1 (12.1.1) –>2011
Weblogic Server 12cR2 (12.2.1) –>2015
Weblogic Server 14c (14.1.1) –>2020

Weblogic VS Websphere

Weblogic start up faster in prod compared to Websphere
Weblogic console is more user friendly

Weblogic vs JBOSS

–>Weblogic is by oracle but JBOSS is from Redhat
–>JBOSS is open source but weblogic is not
–>Weblogic can easily handle multiple request say > 3000 without fail but JBOSS can’t
–>Weblogic has commercial support but JBOSS yet to release 100% commercial support.
–>In weblogic JMS Clustering Present but not in JBOSS.
–>Weblogic provides multiple way to deploy application.

Roles and Responsibilities of Weblogic Admin

1)Install Weblogic Server
2)Configure Domain
3)Deploy application and maintain it
4)Integrating various external source
5)Troubleshoot issues
6)Performance Tuning
7)Patching
8)Upgrade