What is Three tier architecture. Can anyone explain with a
Ordinary web application Project? (JSP,Servlets,JAVA,DAO) ?
Answers were Sorted based on User's Feedback
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 |
What is gui programming?
what is the difference between statis block and static variable
Explain public static void main(string args[]).
which class is the wait() method defined in? : Java thread
What are field variable and local variable?
What is meant by 'Class access modifiers'?
Hi.... I applied for the post of scientific officer/Engineer-SB(Programmer).Please post the syllabus and sample papers.
Difference between overriding and overloading in java?
What is Session reduplication and how its done?
How do you clear a list in java?
What are the benefits of operations in java?
Which java ide is used the most?