In this session you will learn: Model View and Controller architecture Model-Business data View- Presentation logic Controller-servlet Separation of business logic from presentation logic For more information, visit: https://www.mindsmapped.com/courses/software-development/java-developer-training-for-beginners/

1. Java/J2EE Programming Training
Model View and Controller

2. Page 2Classification: Restricted
Agenda
• Model View and Controller architecture
• Model-Business data
• View- Presentation logic
• Controller-servlet
• Separation of business logic from presentation logic

3. Page 3Classification: Restricted
presentation
+
BusinessLogic
presentation
+
BusinessLogic

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controll
er
model
view

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doGet()
{
Emp e = EDao.getEmp( 100 );
request.setAttribute(“emp
”,emp);
RequestDispatcher rd;
Rd =
req.getRequestDispatcher(“Emp
Vu.jsp”);
Rd.forward(reques, response);
}
EmpVu.jsp
Emp:100
submit
Emp:
100
Fname:Ja
ck
Lname:To
m
4
5
1
2
3

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doGet()
{
Emp e = EDao.getEmp( 100 );
request.setAttribute(“emp”,e
mp);
RequestDispatcher rd;
Rd =
req.getRequestDispatcher(“EmpVu.js
p”);
Rd.forward(reques, response);
}
EmpVu.jsp
Emp:100
submit
Emp:
Fname:
Lname:
4
5
1
2
3
Request
em
p
Emp:100
Fname:Ja
ck
Lname:To
m
respon
se

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doGet()
{
Emp e = EDao.getEmp(
100 );
request.setAttribute(“
emp”,emp);
RequestDispatcher rd;
Rd =
req.getRequestDispatcher(“Emp
Vu.jsp”);
Rd.forward(reques,
response);
}
${requestScope.emp
.fname}
${requestScope.emp
.lname}
${requestScope.emp
.lname}
Emp:100
submit Emp:
100
Fname:Ja
ck
Lname:To
m
1
2
3
respon
se
Request
emp
Rd.forward( req,
resp);

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Thank You