All about Jason Smit

Error: package org.apache.taglibs.standard.tag.rt.core does not exist

Hi,
Is there anyway that I can have someone on Skype to speak to ? It would be great to have a "buddy" to bounce questions and answers via Skype.

9 years ago

JSP

Error: package org.apache.taglibs.standard.tag.rt.core does not exist

Hi,

I have added the following jar file to my library but still giving errors:

C:\Program Files\Apache Software Foundation\Apache Tomcat 8.0.9\lib\jstl-1.1.2.jar

Should URI link change?

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql"%>

9 years ago

JSP

Error: package org.apache.taglibs.standard.tag.rt.core does not exist

J. Kevin Robbins wrote:And btw, using the SQL tags is a Bad Idea except for rapid prototyping. Never do that for production code. Move that database code to a DAO and use a PreparedStatement.

Will keep that in mind. Will try that after getting this test project to work.

I have managed to add the libraries as requested to the project so the error is no longer there.
However I am still getting these errors:

9 years ago

JSP

Error: package org.apache.taglibs.standard.tag.rt.core does not exist

I am getting these errors. I am using Apache Tomcat 8.0.9, with Netbeans. I have been trying to use this tutorial:
https://netbeans.org/kb/docs/web/mysql-webapp.html
(However, I am connected to an Oracle Database, not MySQL).

I did a similar setup/deployment on glassfish-4.1 and did not get these issues. It worked there.

If I remove these tags from the jsp file then the errors go away but then I wont get the data displayed from the database.

below is the entire jsp code

Below is the errors:

Compiling 1 source file to C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\classes
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:116: error: package org.apache.taglibs.standard.tag.rt.sql does not exist
org.apache.taglibs.standard.tag.rt.sql.QueryTag _jspx_th_sql_query_0 = (org.apache.taglibs.standard.tag.rt.sql.QueryTag) _jspx_tagPool_sql_query_var_dataSource.get(org.apache.taglibs.standard.tag.rt.sql.QueryTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:116: error: package org.apache.taglibs.standard.tag.rt.sql does not exist
org.apache.taglibs.standard.tag.rt.sql.QueryTag _jspx_th_sql_query_0 = (org.apache.taglibs.standard.tag.rt.sql.QueryTag) _jspx_tagPool_sql_query_var_dataSource.get(org.apache.taglibs.standard.tag.rt.sql.QueryTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:116: error: package org.apache.taglibs.standard.tag.rt.sql does not exist
org.apache.taglibs.standard.tag.rt.sql.QueryTag _jspx_th_sql_query_0 = (org.apache.taglibs.standard.tag.rt.sql.QueryTag) _jspx_tagPool_sql_query_var_dataSource.get(org.apache.taglibs.standard.tag.rt.sql.QueryTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:162: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.ForEachTag _jspx_th_c_forEach_0 = (org.apache.taglibs.standard.tag.rt.core.ForEachTag) _jspx_tagPool_c_forEach_var_items.get(org.apache.taglibs.standard.tag.rt.core.ForEachTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:162: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.ForEachTag _jspx_th_c_forEach_0 = (org.apache.taglibs.standard.tag.rt.core.ForEachTag) _jspx_tagPool_c_forEach_var_items.get(org.apache.taglibs.standard.tag.rt.core.ForEachTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:162: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.ForEachTag _jspx_th_c_forEach_0 = (org.apache.taglibs.standard.tag.rt.core.ForEachTag) _jspx_tagPool_c_forEach_var_items.get(org.apache.taglibs.standard.tag.rt.core.ForEachTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:202: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.OutTag _jspx_th_c_out_0 = (org.apache.taglibs.standard.tag.rt.core.OutTag) _jspx_tagPool_c_out_value_nobody.get(org.apache.taglibs.standard.tag.rt.core.OutTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:202: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.OutTag _jspx_th_c_out_0 = (org.apache.taglibs.standard.tag.rt.core.OutTag) _jspx_tagPool_c_out_value_nobody.get(org.apache.taglibs.standard.tag.rt.core.OutTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:202: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.OutTag _jspx_th_c_out_0 = (org.apache.taglibs.standard.tag.rt.core.OutTag) _jspx_tagPool_c_out_value_nobody.get(org.apache.taglibs.standard.tag.rt.core.OutTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:220: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.ForEachTag _jspx_th_c_forEach_1 = (org.apache.taglibs.standard.tag.rt.core.ForEachTag) _jspx_tagPool_c_forEach_var_items.get(org.apache.taglibs.standard.tag.rt.core.ForEachTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:220: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.ForEachTag _jspx_th_c_forEach_1 = (org.apache.taglibs.standard.tag.rt.core.ForEachTag) _jspx_tagPool_c_forEach_var_items.get(org.apache.taglibs.standard.tag.rt.core.ForEachTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:220: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.ForEachTag _jspx_th_c_forEach_1 = (org.apache.taglibs.standard.tag.rt.core.ForEachTag) _jspx_tagPool_c_forEach_var_items.get(org.apache.taglibs.standard.tag.rt.core.ForEachTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:262: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.ForEachTag _jspx_th_c_forEach_2 = (org.apache.taglibs.standard.tag.rt.core.ForEachTag) _jspx_tagPool_c_forEach_var_items.get(org.apache.taglibs.standard.tag.rt.core.ForEachTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:262: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.ForEachTag _jspx_th_c_forEach_2 = (org.apache.taglibs.standard.tag.rt.core.ForEachTag) _jspx_tagPool_c_forEach_var_items.get(org.apache.taglibs.standard.tag.rt.core.ForEachTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:262: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.ForEachTag _jspx_th_c_forEach_2 = (org.apache.taglibs.standard.tag.rt.core.ForEachTag) _jspx_tagPool_c_forEach_var_items.get(org.apache.taglibs.standard.tag.rt.core.ForEachTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:302: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.OutTag _jspx_th_c_out_1 = (org.apache.taglibs.standard.tag.rt.core.OutTag) _jspx_tagPool_c_out_value_nobody.get(org.apache.taglibs.standard.tag.rt.core.OutTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:302: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.OutTag _jspx_th_c_out_1 = (org.apache.taglibs.standard.tag.rt.core.OutTag) _jspx_tagPool_c_out_value_nobody.get(org.apache.taglibs.standard.tag.rt.core.OutTag.class);
^
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\build\generated\src\org\apache\jsp\dbConn_jsp.java:302: error: package org.apache.taglibs.standard.tag.rt.core does not exist
org.apache.taglibs.standard.tag.rt.core.OutTag _jspx_th_c_out_1 = (org.apache.taglibs.standard.tag.rt.core.OutTag) _jspx_tagPool_c_out_value_nobody.get(org.apache.taglibs.standard.tag.rt.core.OutTag.class);
^
18 errors
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\nbproject\build-impl.xml:953: The following error occurred while executing this line:
C:\Users\USER\Documents\NetBeansProjects\WebApplication2\nbproject\build-impl.xml:296: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 0 seconds)

9 years ago

JSP

How to format a string inside within a "<c:out value='${" line

Hi,
Can you guys not put something together for me to test and try to implement?

10 years ago

JSP

How to format a string inside within a "<c:out value='${" line

I have the following:

The number is displayed as:
12345678901234567890

I want to group the numbers in pairs of 4 as per below:
1234 5678 9012 3456 7890

10 years ago

JSP

How To Sell Your Java Software

K. Tsang wrote:So what does your software do? Is there a market for it?

Few years ago, my company/client suggested me to build a new app that replicate some vendor's tool. Why? So that they can lower the cost.

Did I build it at the end? Nah but did thought about it.

Anyway selling anything depends on the customer. No potential customer, no sales.

It is sort of replicating the idea or simplying an existing app that alot of other companies use. But it feels like re-inventing the wheel.

The other issue is to try and convince people to use your product as well.

10 years ago

Jobs Discussion

How To Sell Your Java Software

Jayesh A Lalwani wrote:Unfortunately, no one makes client side applications anymore, and because of that there is no such market that allows you to sell your app. The closest you have is providing the application on CNet. It will be better if you create an installer for your application. You cannot rely on the user having Java installed, so you will have to bundle Java with your app.

Usually, applications on CNet are freemium; ie; they provide basic features for free, and the users have to pay to unlock all features. If you don't have freemium, you might want to consider it. Generally speaking, users won't pay to download and install applications. Usually, applications on CNet are freemium; ie; they provide basic features for free, and the users have to pay to unlock all features.

Really, what about all the commercial applications that companies use today that requires to be installed? I do not think you are thinking correctly unless you have never worked in a corporate environment.

What application are you then referring to? Web Applications?

10 years ago

Jobs Discussion

How To Sell Your Java Software

Hi,
It is an application which requires to simply be copied and pasted to user's machine with specific configuration/deployment requirements.

10 years ago

Jobs Discussion

How To Sell Your Java Software

Are there websites like Google Play that sells applications?
Do they sell Java Applications?
What is the best approach to sell a piece of software?

10 years ago

Jobs Discussion

Java Development opportunity wanted in South Africa.

I am currently based in South Africa. I am looking for a job that will give me the opportunity to focus on developing. I have a background in support, oracle SQL scripting, and command line and shell/bash scripting, as well as implementation and testing.

10 years ago

Jobs Wanted

DESCRIBE TABLENAME gives me : "java.sql.SQLSyntaxErrorException: ORA-00900: invalid SQL statement"

I have tried the following SQL but it returned an error:
DESCRIBE DOGNAME;

error:
java.sql.SQLSyntaxErrorException: ORA-00900: invalid SQL statement

I can run other SQL statements and they run without errors:
SELECT * FROM DOGNAME;

Why would this happen only for DESCRIBE?

10 years ago

Oracle/OAS

Why does my ItemStateChanged only change just once

Hi

I found this on the net:

/*
* Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle or the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* This example, like all Swing examples, exists in a package:
* in this case, the "start" package.
* If you are using an IDE, such as NetBeans, this should work
* seamlessly. If you are compiling and running the examples
* from the command-line, this may be confusing if you aren't
* used to using named packages. In most cases,
* the quick and dirty solution is to delete or comment out
* the "package" line from all the source files and the code
* should work as expected. For an explanation of how to
* use the Swing examples as-is from the command line, see
* http://docs.oracle.com/javase/javatutorials/tutorial/uiswing/start/compile.html#package
*/
package start;
/*
* HelloWorldSwing.java requires no other files.
*/
import javax.swing.*;
public class HelloWorldSwing {
/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
*/
private static void createAndShowGUI() {
//Create and set up the window.
JFrame frame = new JFrame("HelloWorldSwing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Add the ubiquitous "Hello World" label.
JLabel label = new JLabel("Hello World");
frame.getContentPane().add(label);
//Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}

I am right or wrong in saying that swing component/s should be placed on the main method of a script (i.e. public static void main(String[] args))?

And on methods?

10 years ago

Swing / AWT / SWT

Why does my ItemStateChanged only change just once

Darryl Burke wrote:Please note that, by convention, variable and method names in Java start with a lowercase letter, with subsequesnt words being capitalized, aka camelCase. Underscores are normaly used only as word separators in STATIC_FINAL_CONSTANTS

Failure to follow the convention can make it difficult for others to read and understand your code, and can directly affect the amount of help you get on any public forum.

Additionally, it's not good practice to mix JDBC and Swing code in the same class.

Thanks for the tip,
Please show me examples of your code to illustrate your explanations.

10 years ago

Swing / AWT / SWT

Jason Smit

Recent posts by Jason Smit