TECHNICALSKILLS

Implement JavaScript with JSP

2009-06-01T20:06:00.004+05:30

In this section we are going to implement insert data, delete data, and update data using with JDBC database and also using of JavaScript.Step 1: Create employee form (EmployeeInformation.jsp) .In this step first of all create Employee information form and retrieved employee id from database using with JDBC database. Here is the code EmployeeInformation.jsp&lt%@ page language="java" import="

Accessing database from JSP

2009-06-01T19:53:00.002+05:30

IntroductionIn This article I am going to discuss the connectivity from MYSQL database with JSP.we take a example of Books database. This database contains a table named books_details. This table contains three fields- id, book_name& author. we starts from very beginning. First we learn how to create tables in MySQl database after that we write a html page for inserting the values in '

Retrieving the data posted to a JSP file from HTML file

2009-06-01T19:50:00.000+05:30

Now I will show you how to retrieve the data posted from a HTML file in a JSP page. Consider an html page that prompts the user to enter his/her name, let's call it getname.htm. Here is the code of the html file: &lthtml&gt&lthead&gt&lttitle&gtEnter your name&lt/title&gt&lt/head&gt&ltbody&gt&ltp&gt &lt/p&gt&ltform method="POST" action="showname.jsp"&gt&ltp&gt&ltfont color="#800000" size="5"&

Reading Request Information

2009-06-01T19:48:00.000+05:30

When an HTTP client such as web browser sends a request to a wen server, along with the request it also sends some HTTP variables like Remote address, Remote host, Content type etc. In some cases these variables are useful to the programmers. So here is the code of the jsp file which prints the HTTP request information:&lt%@page contentType="text/html" import="java.util.*" %&gt&lt!--http://

JSP date example

2009-06-01T19:46:00.000+05:30

&lt%@page contentType="text/html" import="java.util.*" %&gt&lt!--http://www.roseindia.net/jsp--&gt&lthtml&gt&ltbody&gt&ltp&gt &lt/p&gt&ltdiv align="center"&gt&ltcenter&gt&lttable border="0" cellpadding="0" cellspacing="0" width="460" bgcolor="#EEFFCA"&gt&lttr&gt&lttd width="100%"&gt&ltfont size="6" color="#008000"&gt Date Example&lt/font&gt&lt/td&gt&lt/tr&gt&lttr&gt&lttd width="100%"&gt&ltb&gt

INTRODUCTION TO JSP SCRIPTLETS

2009-06-01T19:43:00.000+05:30

Syntax of JSP Scriptles are: &lt% //java codes %&gtJSP Scriptlets begins with &lt% and ends %&gt .We can embed any amount of java code in the JSP Scriptlets. JSP Engine places these code in the _jspService() method. Variables available to the JSP Scriptlets are: * request: request represents the clients request and is a subclass of HttpServletRequest. Use this variable to retrieve the

INTRODUCTION TO JSP DECLARATIVES

2009-06-01T19:28:00.001+05:30

Syntax of JSP Declaratives are: &lt%! //java codes %&gtJSP Declaratives begins with <%! and ends %> with .We can embed any amount of java code in the JSP Declaratives. Variables and functions defined in the declaratives are class level and can be used anywhere in the JSP page. &lt%@page contentType="text/html" %&gt&lthtml&gt&ltbody&gt&lt%!int cnt=0;private int getCount(){//increment cnt and

INTRODUCTION TO JSP TAGS

2009-05-31T22:43:00.003+05:30

In this lesson we will learn about the various tags available in JSP with suitable examples. In JSP tags can be devided into 4 different types. These are: 1. Directives In the directives we can import packages, define error handling pages or the session information of the JSP page. 2. Declarations This tag is used for defining the functions and variables to be used in

JSP Actions

2009-05-31T22:39:00.002+05:30

In this section we will explain you about JSP Action tags and in the next section we will explain the uses of these tags with examples. We will also show how to use JSP Action Tags in the JSP application.What is JSP Actions?Servlet container provides many built in functionality to ease the development of the applications. Programmers can use these functions in JSP applications. The JSP Actions

JSP ARCHITECTURE

2009-05-31T22:38:00.001+05:30

JSP pages are high level extension of servlet and it enable the developers to embed java code in html pages. JSP files are finally compiled into a servlet by the JSP engine. Compiled servlet is used by the engine to serve the requests.javax.servlet.jsp package defines two interfaces: * JSPPage * HttpJspPage These interfaces defines the three methods for the compiled JSP page.

Tutorials - Java Server Pages Technology

2009-05-31T22:33:00.001+05:30

Java Server Pages JavaServer Pages (JSP) technology is the Java platform technology for delivering dynamic content to web clients in a portable, secure and well-defined way. The JavaServer Pages specification extends the Java Servlet API to provide web application developers with a robust framework for creating dynamic web content on the server using HTML, and XML templates, and Java

Example Using Scripting Elements and Directives

2009-05-30T08:58:00.002+05:30

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE>Using JavaServer Pages</TITLE><META NAME="author" CONTENT="Marty Hall -- hall@apl.jhu.edu"><META NAME="keywords" CONTENT="JSP,JavaServer Pages,servlets"><META NAME="description" CONTENT="A quick example of the four main JSP tags."><LINK REL=STYLESHEET HREF="My-Style-Sheet.css" TYPE="text/css"></

request,response,out,session,application,config,pageContext,page

2009-05-30T08:46:00.002+05:30

requestThis is the HttpServletRequest associated with the request, and lets you look at the request parameters (via getParameter), the request type (GET, POST, HEAD, etc.), and the incoming HTTP headers (cookies, Referer, etc.). Strictly speaking, request is allowed to be a subclass of ServletRequest other than HttpServletRequest, if the protocol in the request is something other than HTTP. This

Predefined Variables

2009-05-30T08:44:00.000+05:30

To simplify code in JSP expressions and scriptlets, you are supplied with eight automatically defined variables, sometimes called implicit objects. The available variables are request, response, out, session, application, config, pageContext, and page. Details for each are given below.

The JSP include Directive

2009-05-30T08:34:00.001+05:30

This directive lets you include files at the time the JSP page is translated into a servlet. The directive looks like this: <%@ include file="relative url" %> The URL specified is normally interpreted relative to the JSP page that refers to it, but, as with relative URLs in general, you can tell the system to interpret the URL relative to the home directory of the Web server by starting the URL

The JSP page Directive

2009-05-30T08:33:00.001+05:30

The page directive lets you define one or more of the following case-sensitive attributes: * import="package.class" or import="package.class1,...,package.classN". This lets you specify what packages should be imported. For example: <%@ page import="java.util.*" %> The import attribute is the only one that is allowed to appear multiple times. * contentType="MIME-Type" or

JSP Directives

2009-05-30T08:32:00.001+05:30

A JSP directive affects the overall structure of the servlet class. It usually has the following form:<%@ directive attribute="value" %>However, you can also combine multiple attribute settings for a single directive, as follows:<%@ directive attribute1="value1" attribute2="value2" ... attributeN="valueN" %>There are two main types of directive: page, which

JSP Declarations

2009-05-30T08:31:00.000+05:30

A JSP declaration lets you define methods or fields that get inserted into the main body of the servlet class (outside of the service method processing the request). It has the following form:<%! Java Code %>Since declarations do not generate any output, they are normally used in conjunction with JSP expressions or scriptlets. For example, here is a JSP fragment that prints out the number of

JSP Scriptlets

2009-05-30T08:30:00.000+05:30

If you want to do something more complex than insert a simple expression, JSP scriptlets let you insert arbitrary code into the servlet method that will be built to generate the page. Scriptlets have the following form: <% Java Code %> Scriptlets have access to the same automatically defined variables as expressions. So, for example, if you want output to appear in the resultant page, you would

JSP Expressions

2009-05-30T08:29:00.000+05:30

A JSP expression is used to insert Java values directly into the output. It has the following form:<%= Java Expression %>The Java expression is evaluated, converted to a string, and inserted in the page. This evaluation is performed at run-time (when the page is requested), and thus has full access to information about the request. For example, the following shows the date/time that the page was

JSP Scripting Elements

2009-05-30T08:28:00.000+05:30

JSP scripting elements let you insert Java code into the servlet that will be generated from the current JSP page. There are three forms: 1. Expressions of the form <%= expression %> that are evaluated and inserted into the output, 2. Scriptlets of the form <% code %> that are inserted into the servlet's service method, and 3. Declarations of the form <%! code %> that are inserted into the

Template Text: Static HTML

2009-05-30T08:26:00.000+05:30

In many cases, a large percent of your JSP page just consists of static HTML, known as template text. In all respects except one, this HTML looks just like normal HTML, follows all the same syntax rules, and is simply "passed through" to the client by the servlet created to handle the page. Not only does the HTML look normal, it can be created by whatever tools you already are using for building

OVERVIEW

2009-05-30T08:18:00.002+05:30

JavaServer Pages (JSP) lets you separate the dynamic part of your pages from the static HTML. You simply write the regular HTML in the normal manner, using whatever Web-page-building tools you normally use. You then enclose the code for the dynamic parts in special tags, most of which start with "<%" and end with "%>". For example, here is a section of a JSP page that results in something like "

Generating the Server Response: HTTP Status Codes

2009-04-13T12:57:00.006+05:30

Generating the Server Response: HTTP Status Codes : When a Web server responds to the request from the browser or other Web client, the response typically consists of a status line, some response headers, a blank line, and the document Specifying Status Codes As described above, the HTTP response status line consists of the HTTP version, a status code, and an associated message. Since the

Accessing the Standard CGI Variables

2009-04-13T12:48:00.003+05:30

Accessing the Standard CGI Variables: To build the successful web application, you often need to know a lot about the environment in which it is running.You may need to find out about server that is executing your servlets or the specifics of the client that is sending requests. And no matter what kind of environment the application is running in, you most certainly need the information about the