Please help me to test my first taglib

Hi evry body, i am new in jsp, i try to test my first custom tag. I make a file named HelloTag.java that i compile it and put it in \MyWebApp\WEB-INF\lib. Then i make a taglib.tld file that a put it in MyWebApp\WEB-INF. And finally i add these lines to web.xml:
<taglib>
<taglib-uri>/tlt</taglib-uri>
<taglib-location>/WEB-INF/taglib.tld</taglib-location>
</taglib>
I forget to tell you that i make a file named jsp1.jsp that i put it in /MyWebApp.
When i startup tomcat and try to call jsp1.jsp from a web browser i get the folowwing exception :
An error occurred at line: 9 in the jsp file: /jsp1.jsp
Generated servlet error:
D:\Projet_DE_Test\Tomcat\work\MyWebApp\jsp1$jsp.java:59: Class org.apache.jsp.HelloTag not found.
HelloTag jspxth_tlt_message_0 = new HelloTag();
^
I don't know why.
Here is my code:
/*****************************************The tag handler********************************************/
import javax.servlet.jsp.tagext.TagSupport;
import java.io.*;
public class HelloTag extends TagSupport {
private String message = "Assalamo Alaykom";
public HelloTag() {
public void setMessage(String message)
this.message = message;
public int doStartTag(){
try
pageContext.getOut().println(message);
catch(IOException e)
return SKIP_BODY;
/**************************************************the tld*************************************/
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE taglib
PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN"
"http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">
<taglib>
<tlibversion>1.0</tlibversion>
<jspversion>1.1</jspversion>
<shortname></shortname>
<tag>
<name>message</name>
<tagclass>HelloTag</tagclass>
<bodycontent>empty</bodycontent>
</tag>
</taglib>
/***************************************jsp1*********************************************/
<%@ taglib uri="/tlt" prefix="tlt" %>
<html>
<head>
<title>
jsp1
</title>
</head>
<body bgcolor="#ffffff">
<tlt:message />
</body>
</html>
/****************************************web.xml***************************************************/
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<taglib>
<taglib-uri>/tlt</taglib-uri>
<taglib-location>/WEB-INF/taglib.tld</taglib-location>
</taglib>
</web-app>

Try putting your tagclass into a package:
The tag handler would become...
package tags
import javax.servlet.jsp.tagext.TagSupport;
import java.io.*;
public class HelloTag extends TagSupport {
// and in your tld you would make it this:
<tag>
<name>message</name>
<tagclass>tags.HelloTag</tagclass>
<bodycontent>empty</bodycontent>
</tag>When working with Java/Tomcat you should always have your java classes in a package.
Hope this helps,
evnafets

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0) END * Price) AS Ending , rt.TranDate
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RunningTotals rt
LEFT join
TotalOut out
on
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where rt.Total > isNull(out.Qty , 0)
group by rt.Stock_ID , Price , rt.TranDate , rt.QTY
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USE [TestInventory]
GO
/****** Object: Table [dbo].[Tran_Stock] Script Date: 12/15/2014 3:55:56 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Tran_Stock](
[TranID] [int] IDENTITY(1,1) NOT NULL,
[Stock_ID] [int] NULL,
[TranDate] [date] NULL,
[TxnType] [nvarchar](3) NULL,
[Qty] [decimal](10, 2) NULL,
[Price] [decimal](10, 2) NULL
) ON [PRIMARY]
GO
SET IDENTITY_INSERT [dbo].[Tran_Stock] ON
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Hi,
You dont have any Index on the table, so the filters (where part in the queries) and the sorting (order by, group by) make your query slow. it take time to sort or filter data without Index. It is like reading a book with 3k pages and trying to find a specific
subject. You have to read the all books, but if you have "table of contents" which is the book index, then this can be done fast.
* check the Execution plan (the image here show part of your query's execution plan). the query scan the all table 3 times...
there is one sort that use 81% of the query resources... I will go sleep soon (it is
23:58 In Israel now), and I don't know if I will have time to read the query itself and improved it, so lets start with indexes :-)
** as a first step after or before you create the right Indexes you should remove the recursive all together. there is no reason for lopping the data when you can use it as a SET. This is where the relational database's power come to life :-)
for example check this code. I only use your first part of the code using the first 2 CTE tables. compare result.
;WITH
OrderedIn as (
select *,ROW_NUMBER() OVER (PARTITION BY Stock_ID ORDER BY TranDate) as rn
from Tran_Stock
where TxnType = 'IN'
, RunningTotals as (
select Stock_ID ,Qty, Price, Qty as Total, Cast(0 as decimal(10,2)) as PrevTotal, trandate , rn
from OrderedIn where rn = 1
union all
select
rt.Stock_ID, oi.Qty, oi.Price, Cast(rt.Total + oi.Qty as decimal(10,2))
,Cast(rt.Total as decimal(10,2))
, oi.TranDate ,oi.rn
from RunningTotals rt
inner join OrderedIn oi on rt.Stock_ID = oi.Stock_ID and rt.rn = oi.rn - 1
select * from RunningTotals
-- This will do the same as the above query
select
Stock_ID, Qty, Price
, SUM(Qty) over (PARTITION BY Stock_ID order by TranDate ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) as Total
,TranDate--,TranID, TxnType
from Tran_Stock
where TxnType = 'IN'
order by Stock_ID
Ronen Ariely
[Personal Site] [Blog] [Facebook]

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{message:id=1812597}
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