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What is Three tier architecture. Can anyone explain with a
Ordinary web application Project? (JSP,Servlets,JAVA,DAO) ?
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Answer / aditya sharma
Three tire architecture as Module View Controller.
Tier 1: the client contains the presentation logic,
including simple control and user input validation. This
application is also known as a thin client.
[Jsp]
Tier 2: the middle tier is also known as the application
server, which provides the business processes logic and the
data access.
[Servlets, Java, DAO]
Tier 3: the data server provides the business data.
[Database]
| Is This Answer Correct ? | 19 Yes | 2 No |
3 Tier architecture is based on MVC pattern .
M - Model (Java Beans)
V - View (Jsp )
C - Controller (Servlets)
Model :Java Beans) which verify the all values of variables
of business domain state knowledge
View :JSP) is Client side Presentation Logic in business
domain
Controller : is responsible for controlling the flow and
state of user input
Process : First the data will come form jsp page and after
submitting the the value form client (jsp Ist tier)side
than data gone to the server (2nd Tier) and validate on
server and finally the data will gone to database (3 tier
SQL, MS ACCESS).
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / guest
MVC is a 3 tier
Model - Interacts with Database .java (POJO, DAO, Form
Beans)
View - Represents the UI/user interaction (JSP)
Controller - Communicates between the model and view
(Servlets)
| Is This Answer Correct ? | 2 Yes | 3 No |
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