Problem in gui components methods in jsp dynpage

Hi all,
i have created an application by using jspdyn page. in that apllication i have created a button and label . i am not geting any methods for that label and button in jsp file. i am not gettin label_id. set text, button_id setWidth etc.. methods are not getting .please help me regaurding in this issue.
from..
RatnaKumar

Hi ratna,
write this code
<hbj:content id="myContext" >
<hbj:page title="PageTitle">
<hbj:form id="myFormId" >
222
<hbj:radioButton id="RBGenderFemale" text="female" key="rb_fem" tooltip="I am female" disabled="false" />
<hbj:radioButton id="RBGenderMale" text="male" key="rb_male" tooltip="I am male" disabled="false" />
111
</hbj:form>
</hbj:page>
</hbj:content>

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Problems using GET method in JSP

Hi,
I had some problems using GET method in JSP.
I'm using Apache web server 1.3 and Tomcat 3.3.1 in windows 2000.
And I'm using language English and Korean.
When I send messages using POST method, all is good
But when I send message using GET method, English is good, but Korean is not good.
I tried to encode using
URLEncode.encode(str, "UTF-8")
and decoding it using
URLDecode.decode(request.getParameter(tag), "UTF-8")
but it didn't work.
How can I receive request including Korean using GET method in JSP?
If anyone have solutions, please let me know.
thanks.

Hi,
I had some problems using GET method in JSP.
I'm using Apache web server 1.3 and Tomcat 3.3.1 in
windows 2000.
And I'm using language English and Korean.
When I send messages using POST method, all is good
But when I send message using GET method, English is
good, but Korean is not good.
I tried to encode using
URLEncode.encode(str, "UTF-8")
and decoding it using
URLDecode.decode(request.getParameter(tag), "UTF-8")
but it didn't work.
How can I receive request including Korean using GET
method in JSP?
If anyone have solutions, please let me know.
thanks.This problem appears, when one use UTF-16 encoding in JSP - am I right?
If so there are two solutions:
1) Temporary: Use "UTF-8" - or any other 8 bit encoding scheme and
encode Korean symbols with "&1234;" kind of escapes - though it
may not work
2) Absolute: get my piece of code, which I have managed to write
just a month ago resolving absolutely similar problem with UTF-16
in code using Chinese/Russian/English encodings
But I wouldn't say that it's costs 10 DDs :) - it's much more
expensive... So try 1st variant if it wouldn't help - let me know.
I'll figure :)
Paul

Urgent : Data Passing Problem in JSP dynpage using bean in SP11

Hi all
I am trying to pass data from my jspdynpage to jsp using bean , which is not at all passing any values
i am pasting code below which works in 6.0 sp09
I dont know what is happening in sp11
please suggest me in this situation
public static class LeaderStatusOverviewDynPage extends JSPDynPage{
    private LeaderStatusBean myBean = null;
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My jsp page
<jsp:useBean id="myBean" scope="application" class="bean.LeaderStatusBean" />
<hbj:content id="myContext" >
<hbj:page title="PageTitle">
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Hallo Prakash,
I am developing with EP SPS12 and am facing the exact same situation. Values passed to the bean from the dynPage do not get through to the jsp. When removing the respective lines in the portalapps.xml I get a portal runtime exception.
I am posting my portalapps and the jsp where importing the beans. What am I missing here? Any help would be greatly appreaciated! Thank you in advance.
BR
Helga
<?xml version="1.0" encoding="utf-8"?>
<application>
<application-config>
    <property name="PrivateSharingReference" value="com.sap.portal.htmlb"/>
</application-config>
<components>
    <component name="AdminComponent">
      <component-config>
        <property name="ClassName" value="com.company.AdminComponent"/>
        <property name="SecurityZone" value="com.company.AdminComponent/low_safety"/>
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<jsp:useBean id="dropDownListBean" scope="application" class="com.company.bean.DropDownListBean" />

How can i load A gui JTable bean through jsp:useBean tag in a jsp page

Hi,
i am chiranjit , i am in a jsp project . i am desparately looking a solution for below stated problem:
i want to make a jsp page for master entry , that why i want to load a GUI Java bean in my jsp page.This GUI Bean contaning a JTable in which allow grid type data entry in the jsp page. But i am unable load that bean in the jsp page through jsp:useBean tag in my page.So if you have any solution then send in the forum as early as possible.
Thank you
chiranjit

No can do. JSPs can only output plain HTML (and javascript...) They are not used like normal Java classes.
If you need a complex GUI then you might use an Applet instead. If you want to use a JSP then you are stuck using normal HTML components, like <table> <form...> <input type="text"> etc...

Initializing JDialogs or Other GUI Components within SwingWorker

Hello Every one,
I have been using SwingWorker class heavily in my application and recently I noticed that If I click on a button twice or thrice the third or 4th it takes more time to perform the action in which SwingWorker is being used. So I started reading more about SwingWorker and after reading number of articles and posts on this forum I believe I am not using SwingWorker correctly. But, I am not still sure ( or may be I am afriad or I am not ready to change my code in so many files and so many locations :(
So I thought to ask some gurus following questions, in this forum before I proceeed with the code refactoring.
Question 1:* I am performing GUI operations in doInBackground() is it ok to perform swing operations or create swing components in this method of SwingWorker?
Example Code :
jbtnModifyUser Action Event
private void jbtnModifyUserActionPerformed(java.awt.event.ActionEvent evt) {
setButtonsState(false);
final SwingWorker worker = new SwingWorker() {
protected Object doInBackground() {
try {
openUserModifierDialog(SELECTED_PROFILE);
} catch (Exception ex) {
ex.printStackTrace();
} finally {
return null;
public void done()
setButtonsState(true);
worker.execute();
}Open Dialog Method wich I call from several other Swing Components Action performed event
private void openUserModifierDialog(UserProfile profile) throws ServerException {
UserModifierDialog modifier = new UserModifierDialog(_frame, true, profile);
modifier.pack();
modifier.setVisible(true);
if (modifier.isModified()) {
resetFields();
populateUserTable();
} If I click 3 to 4 times same button the 4th or 5th time the dialog opens after soem delay like 10 seconds. But in first two three click it opens quickly like in 2 to 3 seconds. Is it due to the fact that I am perfoming Swing GUI operations in doInBackgroundMethod()?
Question 2: Should I use EventQueue.invokeLater() but as far as I have learned from the articles, the actionPerformed events already run on EDT.
Question 3:_ Each dialog has multiple swing components like combo boxes, tables, tress which it populates after fetching data from the Database in its constructor. It takes like 1 to 2 seconds to bring data and initialize all swing components. Once the Dialog is initialized in the constructor I call my own function to set the existing user details ( As shown below ).
I need to set all the details before I show the Dialog to the user. To achieve this what is the best practice? Where should I use SwingWorker in current scenario? in Dialog's PostInitialize()? In Dialog's Constructor()? or in the Frame's openModifierDialog()?
public UserModifierDialog(java.awt.Frame parent, boolean modal, UserProfile userprofile)
throws ServerException {
super(parent, modal);
if (userprofile != null) {
SELECTED_USER_PROFILE = userprofile;
}else{
//throw new Exception("Invalid user record. User profile cannot be null. ");
initComponents();
postInitialize(); // my function called to set the user details on the screen
private void postInitialize() throws ServerException {
_userManager = new UserManager();
initializeAllPermissions();
initializeUserGroups();
setFields(SELECTED_USER_PROFILE);
private void initializeUserGroups() throws ServerException {
_jcbUserGroup.removeAllItems();
_jcbUserGroup.setModel(new ArrayListModel(_userManager.getAllUserGroups ()));
_jcbUserGroup.setSelectedIndex(0);
private void setFields(Userprofile profile) throws ServerException{
_jlblUserID.setText(profile.getUserid().toString());
_jtfUserName.setText(profile.getUsername());
_jtfFirstName.setText(profile.getFirstname());
_jtfLastName.setText(profile.getLastname());
_jtfPassword.setText(profile.getPassword());
_jtfConfirmPassword.setText(profile.getPassword());
_jtaDescription.setText(profile.getDescription());
_jcbUserGroup.setSelectedItem(_userManager.getUserGroup(profile.getUserGroupID()));
} Question 4: I noticed that if I use following code in my openModifierDialog function to execute the worker rather then its own execute method the dialog opens quickly each time.
Is it good idea to use the following to execute a SwingWorker or I shouldn't as I may fall in some threading issues later on which I am not aware of?
Thread t = new Thread(worker);
t.start();Hope to hear some useful comments / answers to my queries.
Thanks in advance.
Regards

Thanks for your prompt reply and answers to my queries.
Well, I know there are enormous faults in this code. Thats why I am seeking guru's advice to clean the mess. Let me give you breif background of the code. The current code was written by some one else using old version of SwingWorker and I am just trying to clean the mess.
All the JDialog or Swing Components intialization code was in construct() method of previous SwingWorker. Later on when the SwingWorker became the part of Java SE 6 all application code was refactored and the GUI components initialization was moved to the new function doInBackground().
The sample code represents the current condition of the code. All I needed was a shortcut to clean the mess or to avoid changes at so many places. But it seems that there is no easy workout for the current situation and I have to change the entire application code. I have gone through the SwingWorker API and tutorial @ [http://java.sun.com/developer/technicalArticles/javase/swingworker] and I am doing following to clean this mess.
Well the following code is proposed refactoring of the previous code. Hope to hear your comments on it.
private void jbtnModifyUserActionPerformed(java.awt.event.ActionEvent evt) {
try{
openUserModifierDialog(SELECTED_PROFILE);
} catch (Exception ex) {
logger.error(ex);
//show some message here
} finally {
private void openUserModifierDialog(UserProfile profile) throws ServerException {
UserModifierDialog modifier = new UserModifierDialog(_frame, true, profile);
modifier.pack();
modifier.setVisible(true);
if (modifier.isModified()) {
resetFields();
//UserModifierDialog Constructor
public UserModifierDialog(java.awt.Frame parent, boolean modal, UserProfile userprofile)
throws ServerException {
super(parent, modal);
if (userprofile != null) {
SELECTED_USER_PROFILE = userprofile;
} else {
//throw new Exception("Invalid user record. User profile cannot be null. ");
initComponents();
postInitialize(); // My function called to set the user details on the screen
private void postInitialize() {
_userManager = new UserManager();
setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.WAIT_CURSOR));
final SwingWorker worker = new SwingWorker() {
protected Object doInBackground() {
try {
return _userManager.getAllUserGroups(); //returns ArrayList of all user groups from database
} catch (ServerException ex) {
//Show Message here
return null;
protected void done() {
try {
if (get() != null) {
_jcbUserGroup.setModel(new ArrayListModel((ArrayList) get()));
_jcbUserGroup.setEditable(false);
setFields(SELECTED_USER_PROFILE);
else
//show some error to user that data is empty
} catch (InterruptedException ex) {
//show message here
} catch (ExecutionException ex) {
//show message here
} finally {
setCursor(java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.DEFAULT_CURSOR));
worker.execute();
private void setFields(Userprofile profile) throws ServerException {
_jlblUserID.setText(profile.getUserid().toString());
_jtfUserName.setText(profile.getUsername());
_jtfFirstName.setText(profile.getFirstname());
_jtfLastName.setText(profile.getLastname());
_jtfPassword.setText(profile.getPassword());
_jtfConfirmPassword.setText(profile.getPassword());
_jtaDescription.setText(profile.getDescription());
_jcbUserGroup.setSelectedItem(_userManager.getUserGroup(profile.getUserGroupID()));
}In some places where data is way too huge I am going to use process and publish methods of SwingWorker.
Now I have another question, how I can notify/throw any exceptions occured inside SwingWorker doInBackground method or done method to the function who executed SwingWorker. Currenlty I am catching the excpetions in the done method and showing a dialog box. But I want to throw it to the postInitialize method the method who created and executed the Worker. What is the best practice of handling exceptions in SwingWorker methods.
Do you see any problems in proposed refactoring?
Hope to hear your comments.
Regards

Custom Personalization Dialog for JSP Dynpage

Hi,
i have a JSP Dynpage Component with the bean. i want to allow the user to personalize the iView when they click the "Personalize" in the iView Tray. So i have implemented doEdit() in the JSP Dynpage class and setting a JSP in the doEdit(). But in the portal the iView is not bringing any custom personalization JSP when i click "Personalize" in the iVIew Tray Drop Down Menu.
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Hi Saravanan,
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Ensure all the entries are made.
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</components>
<services>
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</services>
</application>
Hope it helps you.
Regards,
Ponneswari.

Problem with GUI in applet

Hai to all,
I am having a problem with GUI in applets
My first class extends a JPanel named A_a
import javax.swing .*;
import java.awt.*;
import java.awt.event.*;
public class A_a extends JPanel
JButton jb;
JTextArea text;
public A_a()
setLayout(new FlowLayout());
jb=new JButton("Click me");
//add(jb);
text=new JTextArea(5,20);
add(text);
public void text_appendText(String aa)
System.out.println("I AM IN A_a");
text.append(aa);
text.revalidate();
revalidate();
/*public static void main(String ags[])
A_a a = new A_a();
JFrame frame=new JFrame();
frame.getContentPane().add(a);
frame.pack();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) { System.exit(0); }
frame.setSize(200,200);
frame.show();
and then I am using other class B_b which is an applet carries a exitsing panel (A_a) inside it .
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class B_b extends JApplet
public A_a a;
public void init()
a=new A_a();
getContentPane().add(a);
public void text_appendText(String aa)
final String aaa =aa;
new Thread(new Runnable()
public void run()
a=new A_a();
a.setBackground(new java.awt.Color(255,200,200));
System.out.println("I AM IN B_b");
a.text.append(aaa);
a.text.revalidate();
getContentPane().remove(a);
resize(500,500);
}).start();
and the I am using the second applet C_c in which by performing a button action the old panel A_a should get removed and replace the new panel D_a (which is not here )in the applet B_b with all other components(namely button , text fields etc)
import javax.swing .*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.util.*;
public class C_c extends JApplet implements ActionListener
JButton jbt;
JTextArea jta;
public void init()
getContentPane().setLayout(new FlowLayout());
jbt=new JButton("Click me");
jbt.addActionListener(this);
getContentPane().add(jbt);
jta=new JTextArea(5,20);
getContentPane().add(jta);
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while(e.hasMoreElements())
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if ( applets instanceof B_b)
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((B_b)applets).remove());
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both the applets C_c and B_b are in same browser page
How can i achive that pls help .

Just to make the code readable...
import javax.swing .*;
import java.awt.*;
import java.awt.event.*;
public class A_a extends JPanel
JButton jb;
JTextArea text;
public A_a()
setLayout(new FlowLayout());
jb=new JButton("Click me");
//add(jb);
text=new JTextArea(5,20);
add(text);
public void text_appendText(String aa)
System.out.println("I AM IN A_a");
text.append(aa);
text.revalidate();
revalidate();
/*public static void main(String ags[])
A_a a = new A_a();
JFrame frame=new JFrame();
frame.getContentPane().add(a);
frame.pack();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) { System.exit(0); }
frame.setSize(200,200);
frame.show();
}and then I am using other class B_b which is an applet carries a exitsing panel (A_a) inside it .
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class B_b extends JApplet
public A_a a;
public void init()
a=new A_a();
getContentPane().add(a);
public void text_appendText(String aa)
final String aaa =aa;
new Thread(new Runnable()
public void run()
a=new A_a();
a.setBackground(new java.awt.Color(255,200,200));
System.out.println("I AM IN B_b");
a.text.append(aaa);
a.text.revalidate();
getContentPane().remove(a);
resize(500,500);
}).start();
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import javax.swing .*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.util.*;
public class C_c extends JApplet implements ActionListener
JButton jbt;
JTextArea jta;
public void init()
getContentPane().setLayout(new FlowLayout());
jbt=new JButton("Click me");
jbt.addActionListener(this);
getContentPane().add(jbt);
jta=new JTextArea(5,20);
getContentPane().add(jta);
public void actionPerformed(ActionEvent ae)
Enumeration e = getAppletContext().getApplets();
Applet applets = null;
while(e.hasMoreElements())
applets=(Applet)e.nextElement();
if ( applets instanceof B_b)
System.out.println("I AM CLASS C_c");
((B_b)applets).text_appendText(jta.getText());
((B_b)applets).remove());
((B_b)applets).getContentPane().add(D_d);
}

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ravinsp wrote:
I have a class which needs to fire events to outside. These events maybe captured by several objects in outside world. How can I achieve this? In so many places I read, they always refer to AWT and Swing whereas my objects don't have any dependency to GUI.
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Message was edited by: Ravi Pasumarty

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If yes, then your goal is really simple: how do I save the state of my application and then restore it?
Go to the filesystem: store as a properties file (key-value pairs), Java's default serialization, XML or a totally custom format
Go do the database: map your object to a proper database table and column (via JDBC or an O/R mapper ala Hibernate), or store what you would have stored in the filesystem in a databaseXML is a valid option. So is a simple properties file. It depends on your requirements. If you are reading from and writing to a Java application, and frequent versioning is not an issue, then Java's default serialization could be a possibility. Going to the database would be the 'enterprise' solution, but requires testing and the successful functioning and communication between two technologies and machines. It depends on your requirements.
- Saish

[SOLVED] Slow Desktop GUI components

Arch Linux 64
i5 -2500k / 8GB Ram / Nvidia with the closed source drivers
OpenBox
LXPanel
compton-git (from AUR)
I am running into a strange recurring problem for some time now.
Even though running and launching applications is fast, various GUI components of individual apps are lagging.
For example moving through the preferences tabs of Pidgin, or preferences tabs of firefox, or changing between open tabs in Firefox( does not happen in Chrome) or generally using the GUI dialogs of certain applications might take 2-3 seconds from the time I clicked to the gui component to the time the change occurs (for example changing from one preference tab to another).
I do not have any performance issues generally in the system, except those gui components that are painfully slow.
Things i have tried so far:
-Initially i thought it was only manifesting in firefox so I reseted the profile but that did not improve the situation.
-I thought it might have to do with GTK so I deleted the .gtk-bookmarks from home dir (in order to be recreated) but that did not improve the situation. I still believe it might have something to do with GTK.
any suggestions are greatly appreciated.
Last edited by mastorak (2014-05-19 19:56:16)

After more experimentation I am now fairly certain that the issue is caused by compton.
I looked into the bugs reported for compton and apparently there are some issues caused by it when used with the nvidia driver having set the backend option to "glx".
With the following compton config it seems to be working correctly with no slowness.
backend = "xr_glx_hybrid"
vsync = "opengl-swc"
glx-no-rebind-pixmap = true
glx-no-stencil = true
paint-on-overlay = true
unredir-if-possible = true
Note that the backend "xr_glx_hybrid" config option is only available(for now) from the "compton-git" package and not "compton" package.
I do not mark it yet as "Solved" as I want to use it for sometime to be certain.
edit:for syntax errors
Last edited by mastorak (2014-05-19 08:38:28)

Problem in gui components methods in jsp dynpage

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