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why business logic written using servlets not in jsp. Jsp
used for presentation purpose. serlvet used for coding
business logic and controller logic. Reason for using
servlets in business logic.
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Its for reusability purpose.jsp should be only used for
presentation purpose and our html designer,who later design
the page is not aware of java coding will not be comfortable.
and writing all buiseness logic in servlet lets the code
reusable.and for writing buiseness logic in jsp page there
are some other way like using scriplets.so why do the job
with less profit and extra work.
| Is This Answer Correct ? | 11 Yes | 2 No |
Answer / rajesh
In servlets we have resource for developing the business
logic but Jsp have the tags for present the output clerly.
| Is This Answer Correct ? | 6 Yes | 6 No |
Answer / nishant
Actually the main reason behind this when the servlet is
used for both presentation & business logic, the tight
coupling between presentation & business logic creates the
problem to the reusablity, because sometime change in
business logic tends to change in presentation logic. Apart
from that the tags & HTML like enviroment makes the webpage
more dynamic.
Now if we are using jsp page for business logic then
scriptlet will be more inside the JSP page which leads to
heavy maintaince cost. The business techies call it as
MODEL1 Architecture.
The seperate declaration of servlet for business unit will
avoid all above.Say MODEL2 Architecture.
| Is This Answer Correct ? | 3 Yes | 3 No |
Answer / gopika
In layman's terms, JSP is core Java embedded in HTML. Servlet has HTML embedded in core Java. You must be aware that HTML is used to define the page structure of a web page at the client side and it deals with how to present the data in a web page. The purpose of JSP introduction is to add very few lines of core Java to help display the web page at the client side and hence, populating many lines of core Java is not appreciated in JSP.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / manikandan [ gtec,vellore ]
jsp files are converted to a servlet file it can b read any
one but servlet files are compile to .class file that so
servlet is used for business logic and jsp are not
| Is This Answer Correct ? | 5 Yes | 7 No |
Hi............ When i am started the tomcat server it started. but it not load the jar files wht we deploving file.suppose we load the wapp folder in webapps. At running time it show the below error in tomcat server INFO: validateJarFile(C:\Program Files\Apache Software Foundation\Tomcat 5.0\web apps\wapp\WEB-INF\lib\servlet-api.jar) - jar not loaded. See Servlet Spec 2.3, s ection 9.7.2. Offending class: javax/servlet/Servlet.class How to slove this problem in my system. plz give answer for this problem.
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