Skip to main content
UploadLanguage (EN)Support
BusinessMobileSocial MediaMarketingTechnologyArt & PhotosCareerDesignEducationPresentations & Public SpeakingGovernment & NonprofitHealthcareInternetLawLeadership & ManagementAutomotiveEngineeringSoftwareRecruiting & HRRetailSalesServicesScienceSmall Business & EntrepreneurshipFoodEnvironmentEconomy & FinanceData & AnalyticsInvestor RelationsSportsSpiritualNews & PoliticsTravelSelf ImprovementReal EstateEntertainment & HumorHealth & MedicineDevices & HardwareLifestyle
KM
Uploaded byKrishna Mer
PPTX, PDF455 views

J2 ee architecture

The J2EE architecture divides applications into three tiers - the client tier, server tier, and database tier. The client tier handles the user interface. The server tier consists of the web tier and business tier, with the web tier handling HTTP requests and the business tier containing application logic. The database tier communicates with databases and external systems to store and retrieve persistent data.

Presentations & Public Speaking◦
Download to read offline
 J2EE Architecture also known as three-tier Architecture.  Application which is divided into three client tier , server tier and database tier this kind of application is known as three tier Architecture.  Application logic divided into following components according to its task or function. 1)Client-tier 2)Server-tier 3)Database-tier(EIS-tier)
1)Client-Tier:- Client tier consists of the user interface for user request and print the response. Client tier runs on client machine. Client tier basically uses the following component of client side. 1)Java Applet 2)Java Application 3)Web pages
2)Server-Tier:- Server tier consists web tier and Business tier. web tier consists of the JSP(Java Server Pages) and servlet dynamic pages to handle the Http specific request logons, session, accesses the business services, and finally constructs a response and send it back to the client.
2)Server-Tier:- Business tier consists of the business logic for the J2EE application. For Example EJB(Enterprise Java Beans). Advantage: The benefit of having a centralized business tier is that same business logic can support different types of clients like browser, WAP , other stand-alone application etc.
3)Database-Tier(EIS-Tier):-  EIS stands for Enterprise Information System. EIS tier consists of the DBMS/RDBMS.  It handles the users sql request and generates appropriate response based on queries.  It is responsible for communicating with external resources such as legacy system, ERP systems; messaging system like MQSeries etc.  It also stores all persistent data in the database.
J2 ee architecture