Assignment and homework help in JSP
JSP stands for Java Server Pages. JSP has been introduced SUN to develop dynamic web sites. JSP provides server side scripting support in order to create applications which are database driven. JSP allows the developers to insert in the java code within the JSP file. This makes the development process and the maintenance very simple and easy. JSP pages are considered to be very efficient as it loads the loads the web server’s memory on receiving the request for the first time itself and so the subsequent calls are responded in short span of time.
Installing JSP
Very first of all you need to download JavaServer Web Development Kit (JSWDK1.0.1) from the http://java.sun.com/products/servlet/download.html website. JSWDK is quite easy to install and it also comes with full documentation. Hence, we do not need to explain the entire procedure for installation here. JSWDK is basically the official reference implementation of the servlets2.1 and JSP1.0 specifications. JSWDK is generally used as a very small stand alone server for testing the JSP pages and the servlets before they are finally deployed any full web server that would support these technologies. It is reliable and free but also takes certain effort to configure and install.
Other server’s which do support JSP
· Apache Tomcat
· Allaire JRun
· New Atlanta’s ServletExec.
· Gefion’s LiteWebServer(LWS)
· GNUJSP
· PolyJSP
· JRUN
· WebSphere
First JSP development
<html>
<head>
<title>Very First JSP page.</title>
</head>
<body>
<p align="right"><font color="#800000" size="8"><%="Java Developers World"%></font></p>
<p align="right"><font color="# FF0000" size="7"><%="Welcome JSP"%> </font></p>
</body>
</html>
In JSP, the java codes are written between the tags ‘<%’ and ‘%>’. These are also known as JSP scriptlets. Any amount of data can be embedded in these scriptlets. The syntax therefore comes out to be:
<%= Any Expression %>
These codes are placed in _jspService() method by JSP Engine. Variables that are available to the JSP Scriptlets are:
· Request: This represents the request of the client and is also the subclass of HttpServletRequest. This variable is then used to retrieve the data submitted along the request. For e.g.
<% String UserId = null;
UserId = request.getParameter("UserId");
%>
· Response: This is a subclass of HttpServletResponse.
· Session: This basically represents the Http Session object which is associated with the request.
· Out: Out is the object of the output stream and this is used to send any outputs to the client.
Various other variables that are available to the scriptlets are: application, pageContext, config, exception etc.
Online Homework help in JSP
Tutors Kingdom is a place where each and every student can get answers to their doubts relating to JSP. You can easily submit us you school, university or college level work to us. Our tutors ensure to provide you not only good solutions but also try their level best to make the assignment in way which could increase your knowledge and understanding. Our tutors are available 24 * 7 to help you out timely in JSP.