Using the Html QUERY_STRING in JSP code

How can I do this? I want to use the parameters of the query string as a parameter for a srciptlet method...

Hi grbrg
U should be able to get the string-informations by using this
<% String somestring = request.getQueryString(); %>
and then somewhere else write it to the page with
<%= somestring %>
Best regards
Dennis

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Thank you.
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<tr bgcolor="<%=color%>">
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<td><html:link forward="viewtopic" paramId="id" paramName="idbean" paramProperty="id"><bean:write name="love" property="title"/></html:link></td>
<td><bean:write name="love" property="name"/></td>
<td><bean:write name="love" property="time"/></td>
</tr>
</logic:iterate>
In Action : request.setAttribute("lovetable",articlelist)
ResutlSet rs=.............
List articlelist=new ArrayList();
while(rs.next()){
articlebean bean=new articlebean();
bean.setName(rs.getString("name"));
bean.setTitle(rs.getString("title"));
articlelist.add(bean);
The above code will work property.
The Tag "html:link" need bean to work other than arraylist so I iterate all the bean out.
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right?
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No.
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I'm not a developer, but need to create some JSP pages to sit within the site page structure.
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<html> <head> and <body>
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Is it so bad to leave in this <body> tag in the page fragment?
I'm not even sure if this is the standard way to create JSP pages but if anyone can offer any advice that would be great.

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Problem in tree while using the HTML format in the lable

Hi all,
DefaultTreeCellRenderer is not working properly if we pass the string as a html format inside the DefaultMutableTreeNode. Using the below code snipet you can cleraly identify the problem.
Kindly compile &execute the below code.All the lable's will be painted properly according to the color code that i've mentioned.
After that please uncomment al the DefaultMutableTreeNode variables corresponding to html tag representation and comment the already existing DefaultMutableTreeNode variables .
someone please clarify me the things what is happening here?
import java.awt.BorderLayout;
import javax.swing.*;
import javax.swing.tree.*;
import java.awt.*;
public class MultiLineTreeDemo extends JFrame {
 private JTree tree;
 final int[] colorcode={0xFF0000,0x00FFFF,0x0000A0,0x800080};
 public static void main( String[] args ) throws Exception {
 SwingUtilities.invokeLater( new Runnable() {
 public void run() { new MultiLineTreeDemo(); }
 public MultiLineTreeDemo() {
 super( "MultiLineTreeDemo" );
 setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
 DefaultMutableTreeNode root = new DefaultMutableTreeNode( "<html>This isthe root node.</html>" );
 DefaultMutableTreeNode node = new DefaultMutableTreeNode( "<html>This isa child node.<html>" );
 DefaultMutableTreeNode leaf = new DefaultMutableTreeNode( "<html>This isa leaf node.<html>" );
 DefaultMutableTreeNode leaf1 = new DefaultMutableTreeNode( "<html>This isa leaf1 node.<html>" );
 /*DefaultMutableTreeNode root = new DefaultMutableTreeNode( " root node" );
 DefaultMutableTreeNode node = new DefaultMutableTreeNode( " child node" );
 DefaultMutableTreeNode leaf = new DefaultMutableTreeNode( " leaf node" );
 DefaultMutableTreeNode leaf1 = new DefaultMutableTreeNode( " leaf1 node" );*/
 node.add(leaf);
 root.add( node );
 root.add( leaf1 );
 tree = new JTree( root );
 tree.setCellRenderer(new DefaultTreeCellRenderer()
 public Component getTreeCellRendererComponent(JTree pTree,
 Object pValue, boolean pIsSelected, boolean pIsExpanded,
 boolean pIsLeaf, int pRow, boolean pHasFocus)
 JLabel lbl = (JLabel)super.getTreeCellRendererComponent(pTree, pValue, pIsSelected,pIsExpanded, pIsLeaf, pRow, pHasFocus);
 DefaultMutableTreeNode newNode=(DefaultMutableTreeNode)pValue;
 if(newNode.isRoot())
 lbl.setForeground(Color.red);
 else if(newNode.isLeaf())
 lbl.setForeground(Color.green);
 else
 lbl.setForeground(Color.blue);
 JPanel p = new JPanel();
 p.setBackground(tree.getBackground());
 Dimension d = lbl.getPreferredSize();
 p.setPreferredSize(new Dimension(d.width, d.height));
 p.add(lbl);
 tree.setRowHeight(80);
 return (p);
 setLayout( new BorderLayout() );
 JScrollPane scrollPane = new JScrollPane( tree );
 add( scrollPane, BorderLayout.CENTER );
 setSize( 200, 200 );
 setVisible( true );
}Thanks in Advance.
Sivabalan

Then I guess the problems come with setting explicit foreground colours on the one hand and using html on the other, even when not specifying them in the html. Stick to one or the other, I suppose. I'm not a fan of using html in labels so I don't know what problems you might run into.
I've got rid of setForeground in the renderer and set the font colour in html. Then it is stable:
import java.awt.BorderLayout;
import javax.swing.*;
import javax.swing.tree.*;
import java.awt.*;
public class MultiLineTreeDemo extends JFrame {
 private JTree tree;
 final int[] colorcode={0xFF0000,0x00FFFF,0x0000A0,0x800080};
 public static void main( String[] args ) throws Exception {
 SwingUtilities.invokeLater( new Runnable() {
 public void run() { new MultiLineTreeDemo(); }
 public MultiLineTreeDemo() {
 super( "MultiLineTreeDemo" );
 setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
 DefaultMutableTreeNode root = new DefaultMutableTreeNode( "<html>This isthe root node.</html>" );
 DefaultMutableTreeNode node = new DefaultMutableTreeNode( "<html>This isa child node.<html>" );
 DefaultMutableTreeNode leaf = new DefaultMutableTreeNode( "<html>This isa leaf node.<html>" );
 DefaultMutableTreeNode leaf1 = new DefaultMutableTreeNode( "<html>This isa leaf1 node.<html>" );
 DefaultMutableTreeNode root = new DefaultMutableTreeNode( " root node" );
 DefaultMutableTreeNode node = new DefaultMutableTreeNode( " child node" );
 DefaultMutableTreeNode leaf = new DefaultMutableTreeNode( " leaf node" );
 DefaultMutableTreeNode leaf1 = new DefaultMutableTreeNode( " leaf1 node" );
 node.add(leaf);
 root.add( node );
 root.add( leaf1 );
 tree = new JTree( root );
 tree.setCellRenderer(new DefaultTreeCellRenderer()
 public Component getTreeCellRendererComponent(JTree pTree,
 Object pValue, boolean pIsSelected, boolean pIsExpanded,
 boolean pIsLeaf, int pRow, boolean pHasFocus)
 JLabel lbl = (JLabel)super.getTreeCellRendererComponent(pTree, pValue, pIsSelected,pIsExpanded, pIsLeaf, pRow, pHasFocus);
 DefaultMutableTreeNode newNode=(DefaultMutableTreeNode)pValue;
// if(newNode.isRoot())
// lbl.setForeground(Color.red);
// else if(newNode.isLeaf())
// lbl.setForeground(Color.green);
// else
// lbl.setForeground(Color.blue);
 //JPanel p = new JPanel();
 //p.setBackground(tree.getBackground());
 //Dimension d = lbl.getPreferredSize();
 //p.setPreferredSize(new Dimension(d.width, d.height));
 //p.add(lbl);
 //tree.setRowHeight(80);
 //return (p);
 return (lbl);
 setLayout( new BorderLayout() );
 JScrollPane scrollPane = new JScrollPane( tree );
 add( scrollPane, BorderLayout.CENTER );
 setSize( 200, 200 );
 setVisible( true );
}

How to use the same bean from Jsp and Servlet

I want to use the same bean instance from both the servlet and jsp.
for eg. if a create a bean using the jsp:useBean in servlet and if a modify some values, that values should be reflected while i access the same bean from the servlet. But instead of that the servlet is creating a new instance of the bean.
is it possible?
Thanks in advance

Hi,
When you call jsp:useBean you inform a scope (session, request, page...)
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Bean b = (Bean) session.getAttribute("bean_id");
Regards,
Filipe Fedalto

Using the Html QUERY_STRING in JSP code

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