What are the basic components of jsp?, JAVA Programming

Assignment Help:

There are two different types of data in a JSP page.

1. Static part which occurs copied directly to the response by the JSP Engine.

2. Dynamic part, which have anything that may be compiled and translated by the JSP Engine.

There are three basic types of dynamic components. (TIP: remember SAD as an abbreviation for Scripting, Directive elements, and Action).

Declaration component: is the embedded Java declaration statement, which gives inserted at the Servlet class level.

<%! Calendar c = Calendar.getInstance(); %>

 Can you define a method within your JSP page?

You can define methods within your JSP pages as declarations, and your methods may be called from within your other methods you define, scriptlets or expression elements. Those declared functions do not have direct access to the JSP implicit objects like response, request, session etc but you may pass them to your functions you declare as parameters.

Expression Element: is the embedded Java expression, which gets solved by the service method.

<%= new Date() %>

Scriptlet Element: are the embedded Java statements, which get performed as part of the service function.

<%

            String username = null;

username = request.getParameter("firstName"); //"request" is a JSP implicit object

%>

Action components: A JSP element that gives information for execution phase.

 


Related Discussions:- What are the basic components of jsp?

Explain primitive data types in java, Explain primitive data types in java?...

Explain primitive data types in java? Java's primitive data types are extremely similar to those of C. They involve boolean, byte, short, long, int, float, double, and char. Th

Development of an android app urgent, Development of an Android app urgent ...

Development of an Android app urgent Project Description: I am searching for some good android developer who has depth in knowledge of making an app. I am focusing on a certa

Prepare a java program, Using Java, write the class Time which consists of ...

Using Java, write the class Time which consists of the following: (a) three private integer data members (hours, minutes and seconds). (b) a constructor to initialise the dat

Minimum shelfs, send me the java code for minimum shelf program

send me the java code for minimum shelf program

Want an experienced ios and android expert, Want an Experienced iOS and And...

Want an Experienced iOS and Android expert Project Description: I am seeking a super talented team or Individual for a Real Estate app. The project wants to get done in a ver

Write program for queue of cards, A Queue of Cards You are going to par...

A Queue of Cards You are going to parallel the development done in the lesson on inheritance where we constructed some base classes, StackNode and Stack, and derived  Floa

How virtual communities are formed, How virtual communities are formed? How...

How virtual communities are formed? How these are different from other Communities? Give examples. Virtual Communities are interest-based communities. Members along with genera

Need support display tiff in internet explorer, Need support Display TIFF i...

Need support Display TIFF in Internet Explorer without ActiveX plugin I would like to get a client side viewer designed that permits user to view TIFF files on IE 8 and IE 9 bro

List down the names of two array techniques available java, List down the n...

List down the names of two array techniques available in JavaScript. The two techniques thata rae available in java script is: 1. sort( ) [sorts elements within alphabetical

How the jms is different from rpc, In RPC the method invoker waits for the ...

In RPC the method invoker waits for the method to finish implementation and return the control back to the invoker. Therefore it is completely synchronous in nature. Whereas in JMS

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd