SoftInfoLife

RELAY: Your message was successfully relayed by syuteSMTP at 01/27/2010 06:28:37 PM to the remote mail system EXCHANGESERVER that does not support confirmation of delivery

2010-01-27T22:19:00.000+05:30

How to Solve this Delivery Status Notification (Relay) Problem?

RELAY: Your message was successfully relayed by syuteSMTP at 01/27/2010 06:28:37 PM to the remote mail system EXCHANGESERVER that does not support confirmation of delivery

Normally this type error occurs when the Exchange Server is not configured for "Enable message tracking" option.This Option will not be Enabled in Exchange Server by Default. Most of the LOCAL IT People will forget this... :)

To configure this Option Please Refer this...
Configure Exchange Server Settings

FOREX Expert Advisor and Metatrader Hosting

2010-01-26T11:01:00.001+05:30

Forex Expert Advisor is a good Tool for Forex Automated Trading. Now a days most of the people Like MT4 or Meta Trader4. Because it's very User Friendly and Supports Forex Robots like Expert Advisor. Expert Advisor will trade For You. There is no need of Manual intervention. Forex Expert Advisor is written by MQL4 Programming Language. If you are running Forex Expert Advisor in Local PC, it is not posiible to keep the Local PC ON for the whole Day or a Month for Forex Expert Advisor Running. To keep the Forex Expert Advisor ON for the whole day or a Month we can Use VPS or Virtual Private Server Hosting Services. VPS Hosting is powerful for Forex Automated Trading. Normally VPS Hosting per Month should be 18$.

Most used VPS Hosting Companies are....

http://www.swvps.com/

HAPPY BIRTHDAY

2009-08-15T22:06:00.001+05:30

FOREX.com Live Market Information

2008-12-29T12:23:00.003+05:30

Real Time Forex Prices

2008-12-28T13:43:00.002+05:30

Happy Christmas

2008-12-24T21:13:00.004+05:30

JExcel / POI (API for Excel Writing)

2008-11-20T20:45:00.009+05:30

In JExcel, we are Writing Cell by Cell. Excel Writing will start, (JDBC) after While(rs.next()) loop. JExcel will take more HEAP Memory. For Example , You are taking 2 1/2 Lakshs Records from resultset, then JExcel will place this records in HEAP Memory during cell by Cell Writing. Whenever this loop is Completed after that only it will create Excel File in Client Side. I checked another Pakage POI API from Apache Software. This API also doing the Same Logic.

We can Achive Sheet by Sheet Excel Writing.But, We are Keeping Large Amount of DATA in HEAP Memory. It will Surely affect Websphere Server Performance.

My Best Solution is for Excel Writing is... Write 60,000 Records in One Excel File. Remaining Write in another File. One Important Thing is, Download Sholud be always Client Side. Please Don't Keep Much Data in Server Side. It will affect Server Performance. Use out.print() Function and it is Fast. Because, We are start writing the Excel File in Client Side inside the While(rs.next()) Loop. We are not keeping any Records in HEAP Memory. We are directly writing Excel File using out.print (OutputStream).

Obama Victory Speech

2008-11-15T16:12:00.003+05:30

Yes... We can!!

First Black President in America.

I never seen such great Speech. Finally Change comes to America.

God Bless You!! May God Bless United States of America!!

Listen and Enjoy OBAMA Victory Speech.

JSP Action Tag

2008-08-24T14:55:00.002+05:30

The main use of JSP Actions Tags are...

1. Use JAVA Applets in JSP.
2. Use JAVA Beans in JSP.
3. Transfer or Forward Control between Pages.

JSP Scriptlet Tag

2008-08-24T14:48:00.003+05:30

<% %>

You can Enter any Vaild Java Code in between these tag <% %>

Example:

<%
int k=10;
out.pritnln(" The Value of k="+k);
%>

JSP Directive Tag

2008-08-15T16:15:00.008+05:30

There are Three Types of JSP Directive Tag..

Page Directive
Include Directive
Tag Lib Directive

1. Page Directive

JSP Page Directive Tag contains 11 Attributes. But this 11 Attributes are Optional.

1. language

<% page language="java" %>

This langugae attribute is used to specify which language the particular JSP Page want to Use.

2. extends

<% page extends="com.ibm.login" %>

Using this extends you can extend any Java Class.

3.import

<% page import="com.test.password" %>

You can import any Java Class using this keyword import.

4.session

<% page session="true" %>

Using this Session Keyword, You can manage JSP Session Variables. Default value is true.
But you can change it into false for good performance.

5.buffer

<% page buffer="none" %>

You can control JSP Buffered Output using buffer Parameter.
The default value is 8kb.

6.autoFlush

<% page autoFlush="true" %>

You can clear the Buffer whenever it's FULL. Just mention autoFlush="true".

7.isThreadSafe

<% page isThreadSafe="true" %>

If the parameter is true then JSP or Servlet can handle Multiple Request at a Time.
Default value is True.

8.info

<% page ibfo="softinfolife.blogspot.com,author:sivakumar" %>

You can mention any Information about the Site,author and other details using this info parameter.

9.errorPage

<% page errorPage="soft/error.jsp" %>

Any Error Page cab be Mentioned using this errorPage.
For example, default 404 Error page you can forward to your Error Page.

10.isErrorPage

<% page isErrorPage="true" %>

You can make a particular JSP page as Error Page by Setting isErrorPage="true".

11.contentType

<% page contentType="text/html" %>

Using this ContentType you can Mention what type of content your web page Have and you can mention characterset also...

2. Include Directive

You can include any HTML or JSP Page using this Include Directive Tag.

<% include file="footer.jsp" %>

The meaning of include is you are displaying the content of the File.

3. Tag Lib Directive

The meaning of Tag Lib is Collection of Custom Tag.
It is introduced in JSP 1.1

<% taglib uri="enter the url" prefix="myTagLib" %>

Here uri is the Location of TagLib and prefix is the Reference of TagLib.

JSP Expression Tag

2008-08-15T13:04:00.002+05:30

Expression Tag ( <%= %> )

The Main aim of this JSP Expression Tag is to Print the Value of Variable or to Print the Value of a Method.

Example:
<%= name%>

Here the Value of name will Printed. Suppose the Value of name="Google" then Google will be Printed.
Similarly you can use this JSP Expression Tag for Printing Value of a Method.

JSP Declaration Tag

2008-08-15T12:45:00.002+05:30

JSP Declaration Tag ( <%! %> )

From the Name itself, You can understand this JSP Declaration Tag is used for Declaring Variables or Methods.

Example:

<%!
public String name="Sivakumar";
private int i=10;
%>

Each Declaration must end with semicolon(;).

JSP Tags

2008-08-15T12:02:00.002+05:30

There are 5 JSP Tags are there...

Declaration Tag
Expression Tag
Directive Tag
Scriptlet Tag
Action Tag

JSP Architecture

2008-08-15T10:29:00.005+05:30

JSP Architecture

The above picture is enough to describe JSP Architecture.
Step By Step Explanation of JSP Architecture......

1. Web Browser Request

Web Browser Request is your System Internet Explorer or Firefox Request. For example...You are typing http://www.google.com in Internet Explorer or Firefox Address Bar..that means you are requesting particular Web Page(example: index.jsp)...

2. JSP Request send to Web Server

When you request particular page Then the request is going to Internet Service Provider, (May be Verizon or Tata ..etc..) through internet service provider it will go to particular server for example, if you requesting google page then it will go to google Web server.

3. Send to JSP Servlet Engine

Now the JSP request send to JSP Servlet Engine. JSP Servlet Engine do some Operations.

4. Parse JSP

The JSP Servlet Engine first read the JSP File. (example: index.jsp)

5. Generate Servlet Source Code

Next the JSP Servlet Engine generate Servelt Source Code( java file).

6. Compile Servlet Source Code into Class

The servlet Java file is compiled and it will generate class file. (just like java compilation)

7. Instantiate Servlet

Now the Class file ready for user Request and it will produce the Result in the form of HTML.

8. HTML (Servlet Output)

Servlet Output in the Form of HTML will go the Internet Service Provider.

9. HTML Send to Browser

Throgh Internet Service Provider the HTML Output will be displayed in your Browser.

JSP Very Simple Example

2008-08-15T07:52:00.015+05:30

Creating Your First JSP Page

Step:1
First Step is, You want to type the JSP Coding. So you need some Editor. You can use Wordpad, Notepad or Macromedia. In the above screenshot, it shows Wordpad for editing JSP codings.

Step:2

Type the Following Codings....

<html>

<head>
<title>MY JSP PAGE</title>
</head>

<body>

<%@ page language="java" %>
<% out.println("MY FIRST JSP PAGE");%>

</body>

</html>

Very Simple JSP Coding. The main objective of this coding is to print one line. Like your First Java example you are printing "My First Java Program". Here also same thing, you are going to print "MY FIRST JSP PAGE". Already explained HTML+JAVA=JSP. This example contains mixture of JAVA and HTML Codings. I believe many of them understand this HTML Coding. Next is the Java part.....

<%@ page language="java" %>

All the JSP Codings must be written in <% and %&gt only.
page language="java" means the particular web page is going to use JAVA Language.

<% out.println("MY FIRST JSP PAGE");%>

Next you want to print one Message "MY FIRST JSP PAGE" . In java how you are printing one Line? System.out.println("MY FIRST JSP PAGE"). In JSP you can use the Word System or simply use <% out.println("MY FIRST JSP PAGE");%>

Step:3
Save this File as First.jsp in the Following Location.
C:\Program Files\Apache Software Foundation\Tomcat 5.0\webapps\ROOT
(It may be C, D or E Drive. Check your System... :))

Step:4
Check whether the Apache Web Server is Started or Not. If the Web server is Started then just like the above screen shot, the server icon should be green color. If it is not started then the icon color is red color.

Step:5

Next Open Internet Explorer and type the Following Address...
http://localhost:8080/First.jsp

Step:6

When you type the above address in Internet Explorer,
What will happen in the Background?
What is the use of JSP Engine in Tomcat WebServer?
The above picture clearly shows what are all the actions taken when you type the Address in Internet Explorer.

1. JSP is Translated into Servlet.

Whenever you run a JSP File First Time, The particular JSP file is translated into Servlet. Servlet is a JAVA class.

2. The Servlet Class is compiled and generate JAVA class file.

Now Servlet JAVA File is compiled and generate JAVA Class file. This will happen whenever the user request the JSP Page First Time.

Step:7

You will get the above Output.

Step:8

How to View HTML Format Coding? In Internet Explorer Goto VIEW-->Source

Step:9
Now you can able to the HTML Codings and NOT JSP Codings.

<html>

<head>
<title>MY JSP PAGE</title>
</head>

<body>

MY FIRST JSP PAGE

</body>

</html>

JSP Codings are hidden in Client Side.

JSP Compared to Servlets

2008-08-11T06:21:00.003+05:30

Servlet is a Java Class and it provide sever side services.
it is very difficult to write HTML Code in Servlet. But in JSP it is Very easy.
In servlet we need to write lot of println statement to generate HTML Code.

JSP Compared to ASP

2008-08-11T06:12:00.004+05:30

JSP

Platform Independent.
Component reuse by JavaBeans and EJB.
JSP allows Database Access and Session Variables.

ASP

Mainly Microsoft Platform.
Component reuse by COM/ActiveX Controls.
ASP allows Database Access and Session Variables.

Main Reasons to Use JSP

2008-08-11T06:04:00.003+05:30

Platform Independent.
We can use Java Beans and EJB in JSP Technology.
All the Advantages of JAVA. Because HTML+JAVA=JSP. So what are all the Advantages in JAVA that all comes under JSP.

How to Change Tomcat Default Port 8080?

2008-08-11T05:50:00.003+05:30

Step:1
How to change the Tomcat Web Server Default Port Number 8080? It is Very Easy. Just go to the Following Path... c:/program files/apache Software foundation/tomcat 5.0/conf and you can able to see server.xml file. Just Open this File

Step:2
In that File, Line Number 87 and 88 you can able to see the following connector port=8080
Just change the port Number like 9090 or any four digit number. Next SAVE this File and Restart the Tomcat Web server. Now the Tomcat Webserver Pointed to a Particular Port Number.

Troubleshooting Tomcat Web Server

2008-08-11T05:31:00.004+05:30

1. The Internet Explorer's Error Page.

This is the Common Error, When you type the Address http://localhost:8080/ and You will get one Error Page The page cannot be Displayed. So what is the Reason? The reason is Your Tomcat Web server was Shutdown. Just Restart the Tomcat Web Server and Try again.

2. Tomcat's Default 404 error Page
Another one Common Error Message is HTTP Status 404 - The reason for this Error is the Particular JSP file was not Found in the Particular Location. Please Check the File location and the JSP File.

How to Stop Tomcat?

2008-08-11T05:03:00.004+05:30

Step:1

To Stop Apache Tomcat Web Server, Go to Start Bar, right Click the Tomcat Icon and click Shutdown Tomcat5. See the Below Picture.Step:2

Now the Apache Tomcat Web server ICON was RED Color. Meaning is Server Shutdown.

How to Start Tomcat WebServer?

2008-08-10T22:18:00.011+05:30

Step: 1Now you have installed Tomcat Webserver. How to Start Tomcat Webserver? . Before that What is the use of Tomcat Webserver? The main use of this Server is Compiling and Running JSP Files. If you installed in Windows Xp, then go Start Menu select Programs , Next select Apache Tomcat 5.0 and Click Start Tomcat.

Step: 2
Now one Tomcat Server Window Appear. Please Wait for some Time.

Step: 3

Next You can able to the Apache Tomcat Icon in the Start Bar. If the icon color is Green then Server Started. If the Icon color is Red then Server Stopped.

Step: 4

Now go to Internet Explorer and Type the Following Address http://localhost:8080/
You will get the above page. If the page was opened successfully then there is no problem in Server Configuration. Now You are ready for developing Web Application using JSP and Tomcat WebServer....

Requirements for Developing JSP

2008-08-10T22:04:00.006+05:30

1. Wordpad / Notepad
2. J2SDK 1.4
3. Apache Tomcat Webserver

You can download Java from Sun Website.
http://www.java.com/en/download/index.jsp
Now the Latest Version is 1.6

You can download Apache Tomcat Webserver from Apache Site.
http://tomcat.apache.org/download-55.cgi

Download with FREE of COST... hehe :)

What is JSP?

2008-08-10T20:39:00.012+05:30

JSP Tutorial - Pictorial Presentation. One Picture is equal to 1000 Words. I have designed these Pictures using Photoshop. Each Picture will help you to easily understand JSP. The below picture is a screen Shot of one simple Job Site. This job site contains Login Section, Title and some information about the Site. This job site design was created by photoshop. Now a days So many Web design Tools are Available like Macromedia, Microsoft Frontpage etc... You can use any design Tools for Designing a Web Page. But I recommand Macromedia. Macromedia is a powerful Tool for Designing Web Page. Ok. Now what is the use of JSP? and Why we want to use this JSP Technology? In this Job site you can see the login section. When ever the User enter user name, password and Click OK Button. What will Happen? What is going on in the Background after clicking the OK Button?.... These Questions can be answered by a simple and Powerful Word JSP.

What is JSP? One Simple Math Formula...
HTML + JAVA = JSP :) hehe

JSP = Java Server Pages. JSP Technology was developed by Sun Microsystems. JSP File contains mixture of JAVA and HTML Codings. JSP file Extension is .jsp See the Below Picture. I n that Picture Three Systems are there, running Different Operating System. i-e MAC, Linux and Windows XP connected with Internet. In any one of the System You are typing some Job site Address in Firefox or Internet Explorer. Then the request is going to the particular Job site Server through Internet. Job site Server is Running on UNIX and Using Apache Web Server for compiling and Running JSP Files. So when You type the job site address it will fire some JSP Files in Web server and Produce the Results. So you will get the above page as the Result. similarly when you click OK button, it will fire another JSP and produce the results. ( Login Success or Failure) . Main Advantage is Platform independent. You can use this JSP Technology in any Platform, whether it si Windows, Unix, mac etc....