JSP & JavaBean: setProperty="*" problems!

this is my bean:
package my.mine;
public class myBean{
private String sito;
private String chiave;
private int start;
private int stop;
public void setSito(String s){
    System.out.println("sito " + s);
    if(s!=null || !s.equals(""))
      sito = s;
    else
      sito = "";
public String getSito(){
    return sito;
public void setChiavi(String s){
    System.out.println("chiave " + s);
    if(s!=null || !s.equals(""))
      chiave = s;
    else
      chiave = "";
public String getChiavi(){
    return chiave;
public void setStart(String s){
    System.out.println("start " + s);
    if(s!=null || !s.equals(""))
      start = Integer.parseInt(s);
    else
      start = 0;
public int getStart(){
    return start;
public void setStop(String s){
    System.out.println("stop " + s);
    if(s!=null || !s.equals(""))
      stop = Integer.parseInt(s);
    else
      stop = 0;
public int getStop(){
    return stop;
}this is my JSP Test page:
<jsp:useBean id="testBean" scope="request" class="my.mine.myBean" />
<jsp:setProperty name="testBean" property="*"/>
<html>
<head>
    <title>Test</title>
</head>
<body>
    <form method="post" name="myForm" action="Test1.jsp">
    <table>
      <tr>
        <td align="center">
          <input type="text" name="start" size="50" maxlength="50" value="10">
          <br>
          <input type="text" name="stop" size="50" maxlength="50" value="20">
          <br>
          <input type="text" name="chiavi" size="50" maxlength="50" value="chiavi">
          <br>
          <input type="text" name="sito" size="50" maxlength="50" value="sito">
          <br>
          <input type="submit" value="search" name="searchB">
        </td>
      </tr>
    </table>
    </form>
</body>
</html>      and this is my problem:
I can correctely set the values of sito e chiavi fields and can right get all' the bean values. I had tried to change the value of the return statement of getStop ande getStart and this two methods can return the values I assigned them.
The trouble is that I can't set the start and stop variables with the values in the form...does anybody say me why?
I don't understand!

solved in this way:
public void setInizio(int i s[){
System.out.println("start " + s);
start = i;

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I have some JSP pages where I try to dynamically present some drop-down
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Please help!
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GrayMan - Thanks for your help.
Let me explain my problem in more detail ...
Background:
I have some servlet experience, but I am new to jsp - so sorry if this seems trivial to you ...
I have a book called bitter java by bruce tate from manning.com . I am trying to get the chapter 3 examples to work
There are three files
PostListCommand          the bean
PostListController     the servlet
PostListResults          jsp
And a new test file � PostListResults version 2 with scriptlet code to access the bean.
There are a couple of typos in the downloaded source files, but nothing that causes the main problem of not being able to access the bean data.
Program flow
Servlet instantiates new bean
Bean � gets data from db
Servlet passes bean to jsp with a forward
Jsp outputs data
I have put the files in the directories �
E:\Tomcat41\webapps\examples\WEB-INF\jsp          for jsp�s
E:\Tomcat41\webapps\examples\WEB-INF\classes\bbs     for bean and servlets
The complete source code for each file is given below.
1 I have checked the db access � that�s ok
2 I have also checked reading the bean data back in from the request scope and printing out the results from within the servlet.- ok
3 I can access the data through a scriptlet (PostListResults version 2), but not with the original PostListResults which uses <jsp:useBean>
thanks in advance, chris
PostListController.java
package bbs;
// Imports
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
// Import for commands used by this class
import bbs.PostListCommand;
public class PostListController
extends javax.servlet.http.HttpServlet
implements Serializable {
* DoGet
* Pass get requests through to PerformTask
public void doGet(
HttpServletRequest request,
HttpServletResponse response)
throws javax.servlet.ServletException, java.io.IOException {
performTask(request, response);
public void performTask(
HttpServletRequest request,
HttpServletResponse response) {
try {
PostListCommand postList = (bbs.PostListCommand) java.beans.Beans.instantiate(getClass().getClassLoader(),"bbs.PostListCommand");
postList.initialize();
postList.execute();
request.setAttribute("PostListCommand", postList);
ServletContext sc = this.getServletContext();
RequestDispatcher rd =
sc.getRequestDispatcher("/jsp/PostListResults.jsp");
rd.forward(request, response);
} catch (Throwable theException) {
theException.printStackTrace();
PostListCommand.java
package bbs;
import java.io.*;
import java.sql.*;
//import COM.ibm.db2.jdbc.*;
import java.util.*;
* Insert the type's description here.
* Creation date: (07/17/2001 5:07:55 PM)
* @author: Administrator
public class PostListCommand {
// Field indexes for command properties
private static final int SUBJECT_COLUMN = 1;
private static final int AUTHOR_COLUMN = 2;
private static final int BOARD_COLUMN = 3;
protected Vector author = new Vector();
protected Vector subject = new Vector();
protected Vector board = new Vector();
// SQL result set
protected ResultSet result;
protected Connection connection = null;
* execute
* This is the work horse method for the command.
* It will execute the query and get the result set.
public void execute()
throws
java.lang.Exception,
java.io.IOException {
try {
// retrieve data from the database
Statement statement = connection.createStatement();
result =
statement.executeQuery("SELECT subject, author, board from posts");
while (result.next()) {
subject.addElement(result.getString(SUBJECT_COLUMN));
author.addElement(result.getString(AUTHOR_COLUMN));
board.addElement(result.getString(BOARD_COLUMN));
result.close();
statement.close();
} catch (Throwable theException) {
theException.printStackTrace();
* getAuthor
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* Since the SQL statement returns a result set,
* we will index the result.
public String getAuthor(int index)
throws
java.lang.IndexOutOfBoundsException,
java.lang.ArrayIndexOutOfBoundsException {
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* Since the SQL statement returns a result set,
* we will index the result.
public String getBoard(int index)
throws
java.lang.IndexOutOfBoundsException,
java.lang.ArrayIndexOutOfBoundsException {
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* Since the SQL statement returns a result set,
* we will index the result.
public String getSubject(int index)
throws
java.lang.IndexOutOfBoundsException,
java.lang.ArrayIndexOutOfBoundsException {
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public void initialize()
throws java.io.IOException {
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// URL is jdbc:db2:dbname
String url = "jdbc:db2:board";
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String url = "jdbc:odbc:bitter3board";
// connect with default id/password
connection = DriverManager.getConnection(url);
} catch (Throwable theException) {
theException.printStackTrace();
* Insert the method's description here.
* Creation date: (07/17/2001 11:38:44 PM)
* @return int
* @exception java.lang.IndexOutOfBoundsException The exception description.
public int getSize() {
return author.size();
PostListResults.jsp
<HTML>
<HEAD>
<TITLE>Message Board Posts</TITLE>
</HEAD>
<BODY BGCOLOR=#C0C0C0>
<H1>All Messages</H1>
<P>
<jsp:useBean id="postList" class="bbs.PostListCommand" scope="request"></jsp:useBean>
<TABLE border="1">
<TR>
<TD>Subject</TD>
<TD>Author</TD>
<TD>Board</TD>
</TR>
<% for (int i=0; i < postList.getSize(); _i++) { %>
<TR> <TD><%=postList.getSubject(_i) %></TD>
<TD><%=postList.getAuthor(_i) %></TD>
<TD><%=postList.getBoard(_i) %></TD>
</TR>
<% } %>
</TABLE>
<P>
</BODY>
</HTML>
PostListResults.jsp version 2 � with scriplet code instead of useBean
<HTML>
<%@ page import="bbs.PostListCommand" %>

<HEAD>
<TITLE>Message Board Posts</TITLE>
</HEAD>
<BODY BGCOLOR=#C0C0C0>
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synchronized(request){
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<%     }
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          <TD>Author</TD>
          <TD>Board</TD>
          </TR>
     <% for (int i=0; i < postList.getSize(); _i++) { %>
               <TR> <TD><%=postList.getSubject(_i) %></TD>
          <TD><%=postList.getAuthor(_i) %></TD>
          <TD><%=postList.getBoard(_i) %></TD>
          </TR>
     <% } %>
          </TABLE>
<%     }
}%>
<P>
goodnight
</BODY>
</HTML>

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<head>
</head>
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Apache Tomcat/4.0.6 - HTTP Status 500 - Internal Server Error
type Exception report
message Internal Server Error
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exception
org.apache.jasper.JasperException: Unable to compile class for JSPNote: sun.tools.javac.Main has been deprecated.
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C:\Program Files\Apache Tomcat 4.0\work\Standalone\localhost\_\beans$jsp.java:56: Class org.apache.jsp.LanguageBean not found.
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^
An error occurred at line: 1 in the jsp file: /beans.jsp
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C:\Program Files\Apache Tomcat 4.0\work\Standalone\localhost\_\beans$jsp.java:59: Class org.apache.jsp.LanguageBean not found.
languageBean= (LanguageBean)
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An error occurred at line: 1 in the jsp file: /beans.jsp
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C:\Program Files\Apache Tomcat 4.0\work\Standalone\localhost\_\beans$jsp.java:64: Class org.apache.jsp.LanguageBean not found.
languageBean = (LanguageBean) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "LanguageBean");
^
An error occurred at line: 12 in the jsp file: /beans.jsp
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C:\Program Files\Apache Tomcat 4.0\work\Standalone\localhost\_\beans$jsp.java:94: Class org.apache.jsp.LanguageBean not found.
out.print(JspRuntimeLibrary.toString((((LanguageBean)pageContext.findAttribute("languageBean")).getName())));
^
An error occurred at line: 15 in the jsp file: /beans.jsp
Generated servlet error:
C:\Program Files\Apache Tomcat 4.0\work\Standalone\localhost\_\beans$jsp.java:101: Class org.apache.jsp.LanguageBean not found.
out.print(JspRuntimeLibrary.toString((((LanguageBean)pageContext.findAttribute("languageBean")).getLanguage())));
^
An error occurred at line: 18 in the jsp file: /beans.jsp
Generated servlet error:
C:\Program Files\Apache Tomcat 4.0\work\Standalone\localhost\_\beans$jsp.java:108: Class org.apache.jsp.LanguageBean not found.
out.print(JspRuntimeLibrary.toString((((LanguageBean)pageContext.findAttribute("languageBean")).getLanguageComments())));
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     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
     at java.lang.Thread.run(Thread.java:536)
Thanks

Strange thing with tomcat+jsp+javabean

I use javabean in jsp with tomcat container.if I put the javabean file in a package,then it works well.But if I don't, I means,there are no package clause in my javabean file.then it complaint that org.apache.jsp. error:class not found.
It is very strange.Of course place the class file I put is right.Do anyone encounter the same problem.I use tomcat4.0.4

Did you import the classfile? Even if it is not there in a package, you need to import it.
For example, if you have a Test.java (Test.class) in your web-inf\\classes with out any package statement, then you need to code this in your jsp,
<%@ page import="Test" %> (I don't exactly remember whether you need to import 'Test' or 'Test.class'). Just give a try.
Sudha

Javabean Refresh Problem

HiHi,
I have got a problem of refreshing a modified java program.
I have created a javabean before, there are three fields are defined as float type.
However, I have got some problem of using float, so I made a change on it to double.
At the same time, there is a jsp program using this java program. After I compiled the
java program and put it into the server side (weblogic). I found that there is a probelm
"NoSuchMethodError" every time when I call the jsp. Then I press space of that jsp
program and actually made no change of it. And put it into the server
side again, since there is always a refreshing problem of both java and jsp program
in weblogic. But I still failed, so I rename both the java and jsp program and try it. Finally the
same problem still happens.
So I dunno that it is really a refreshing problem or something I have done wrongly.
Could anyone help me? Thank you very much!
Betty

restart you server and see ...
when ever you change your javabean you have to restart the server, bcoz the class gets loaded in to the server, once you start it, so, if you change it, it is not going to be changed in the server where the class gets loaded, so, it still has the old copy, so, you have to restart the server for it to reflect the changes ....

Error - '.' expected - while database insert thru JSP & javabeans & JDBC

I get the following error when i try to compile the below mentioned code in JDEVELOPER 10.1.2
Error : '.' expected
===================
have error in my code. I am trying to do a simple database insert program using javabeans and jsp. I get a value to be inserted in database through the jsp page in a text box and would like to be inserted into database using beans The connection to database and mysql query are in java file.
Here is the code.
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@ page language="Java" import="java.sql.*" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql" %>
<html>
<head>
</head>
<body>
<form name="form1" action="beancode" method="POST">
Emp ID: <input type="text" name ="emplid"> <br><br><br>
<input type = "submit" value="Submit">
<jsp:useBean id="sampl" class="beancode" scope="page">
<jsp:setProperty name="sampl" property="*"/>
</jsp:useBean>
</form>
</body>
</html>
I know i might have made a mistake here in using the bean. Here is the java code which does the insert part.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
* @author Trainees
public class beancode
private String employid;
private Connection con = null;
private ResultSet rs = null;
private PreparedStatement st = null;
/** Creates a new instance of beancode */
public beancode()
try
          Class.forName("org.gjt.mm.mysql.Driver");
          Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/sample?user=user&password=password");
catch(Exception e)
          System.out.println(e.getMessage());
public void setemployid(String empid)
          employid = empid;
     public String getemployid()
          return (employid);
public void insert()
try
String s1="insert into samp values('"+employid+"')";
st = con.prepareStatement(s1);
st.executeUpdate();
st.clearParameters();
st.close();
catch(Exception m)
}

It's pretty hard to spot any errors the way it's currently formatted. But, you're trying to call the beancode when submitting your form, but the beancode isn't a servlet. Try to find a working example, run it, and then change it to implement your requirements.
The following example shows you have to use the jstl sql tags: http://www.oracle.com/technology/sample_code/tech/java/codesnippet/jsps/jstlsql.html. If you want to do an insert when a user submits a form, you need 2 pages. The first will contain your form, the second will insert the record.
(once you've got that running, look for some examples using an mvc framework, and how to use bind variables with jdbc)

Repost, since no answer in JSP-JSP/CascadingStyleSheet/Javascript problem

Hello, I've got a JSP page that has included a Javascript (JS).
In that JS, a Cascading Style Sheet (CSS) is included. Also on the JSP page, I have some code that makes use of the JS to create a Windows-style combobox, which is not available through raw HTML. The code is as follows:
<BODY>
<SCRIPT language="javascript" src="ComboBox.js"></SCRIPT>
<SCRIPT language="javascript">
dm=new ComboBox("dm")
dm.add(
       new ComboBoxItem("barge",1),
       new ComboBoxItem("benluc",2),
       new ComboBoxItem("benlieeeeck",3),
       new ComboBoxItem("taco",4)
</SCRIPT>
<CENTER><H2>Choose Project S/O</H2><CENTER>
<FORM METHOD=POST ACTION="">
<% //DB connection to populate the combo box %>
<% // Database Connection Parameters
    String DB = "dbname",
    query = "",
    HOST = "jdbc:postgresql://URL:5432/",
    ACCOUNT = "username",
    PASSWORD = "pwd",
    DRIVER = "org.postgresql.Driver";
    // authentication properties
    Properties props = new Properties();
    props.setProperty("user", ACCOUNT);
    props.setProperty("password", PASSWORD);
    // load driver and prepare to access
    Class.forName(DRIVER).newInstance();
    Connection con = DriverManager.getConnection(HOST + DB, props);
    Statement stmt = con.createStatement();
    try{
    query= "SELECT * FROM Projects ORDER BY Name";
    ResultSet rs = stmt.executeQuery(query);
%>
Project S/O:
<SELECT NAME=projso>
<option value="dummy">Choose one...</option>
<% while (rs.next() ) { %>
<OPTION VALUE="<%=rs.getString("Name") %>">
<%=rs.getString("Name")%> ,   <%=rs.getString("Desc")%>
</OPTION>
<% } %>
</SELECT>The problem I am experiencing is that if I move the 2nd SCRIPT tag anywhere but where it is, it makes IE bomb and takes me to an error page. The error message is as follows:
"Internet Explorer cannot open site http://myURL. Operation aborted."
Any ideas?
Haig

I tried making it static HTML with the same result.
I took out all the JSP code before doing so, obviously.
I think it has to do with my code and the HTML FORM tag.
Anyway, here's the requested code, ComboBox.js
*     ComboBox
*     By Jared Nuzzolillo
*     Updated by Erik Arvidsson
*     http://webfx.eae.net/contact.html#erik
*     2002-06-13     Fixed Mozilla support and improved build performance
Global_run_event_hook = true;
Global_combo_array    = new Array();
Array.prototype.remove=function(dx)
    if(isNaN(dx)||dx>this.length){self.status='Array_remove:invalid request-'+dx;return false}
    for(var i=0,n=0;i<this.length;i++)
        if(this!=this[dx])
this[n++]=this[i]
this.length-=1
function ComboBox_make()
var bt,nm;
nm = this.name+"txt";
this.txtview = document.createElement("INPUT")
this.txtview.type = "text";
this.txtview.name = nm;
this.txtview.id = nm;
this.txtview.className = "combo-input"
this.view.appendChild(this.txtview);
this.valcon = document.createElement("INPUT");
this.valcon.type = "hidden";
this.view.appendChild(this.valcon)
var tmp = document.createElement("IMG");
tmp.src = "___";
tmp.style.width = "1px";
tmp.style.height = "0";
this.view.appendChild(tmp);
var tmp = document.createElement("BUTTON");
tmp.appendChild(document.createTextNode(6));
tmp.className = "combo-button";
     this.view.appendChild(tmp);
     tmp.onfocus = function () { this.blur(); };
     tmp.onclick = new Function ("", this.name + ".toggle()");
function ComboBox_choose(realval,txtval)
this.value = realval;
var samstring = this.name+".view.childNodes[0].value='"+txtval+"'"
window.setTimeout(samstring,1)
this.valcon.value = realval;
function ComboBox_mouseDown(e)
var obj,len,el,i;
el = e.target ? e.target : e.srcElement;
while (el.nodeType != 1) el = el.parentNode;
var elcl = el.className;
if(elcl.indexOf("combo-")!=0)
len=Global_combo_array.length
for(i=0;i<len;i++)
curobj = Global_combo_array[i]
if(curobj.opslist)
curobj.opslist.style.display='none'
function ComboBox_handleKey(e)
var key,obj,eobj,el,strname;
eobj = e;
key = eobj.keyCode;
el = e.target ? e.target : e.srcElement;
while (el.nodeType != 1) el = el.parentNode;
elcl = el.className
if(elcl.indexOf("combo-")==0)
if(elcl.split("-")[1]=="input")
strname = el.id.split("txt")[0]
obj = window[strname];
obj.expops.length=0
obj.update();
obj.build(obj.expops);
if(obj.expops.length==1&&obj.expops[0].text=="(No matches)"){}//empty
else{obj.opslist.style.display='block';}
obj.value = el.value;
obj.valcon.value = el.value;
function ComboBox_update()
var opart,astr,alen,opln,i,boo;
boo=false;
opln = this.options.length
astr = this.txtview.value.toLowerCase();
alen = astr.length
if(alen==0)
for(i=0;i<opln;i++)
this.expops[this.expops.length]=this.options[i];boo=true;
else
for(i=0;i<opln;i++)
opart=this.options[i].text.toLowerCase().substring(0,alen)
if(astr==opart)
this.expops[this.expops.length]=this.options[i];boo=true;
if(!boo){this.expops[0]=new ComboBoxItem("(No matches)","")}
function ComboBox_remove(index)
this.options.remove(index)
function ComboBox_add()
var i,arglen;
arglen=arguments.length
for(i=0;i<arglen;i++)
this.options[this.options.length]=arguments[i]
function ComboBox_build(arr)
var str,arrlen
arrlen=arr.length;
str = '<table class="combo-list-width" cellpadding=0 cellspacing=0>';
var strs = new Array(arrlen);
for(var i=0;i<arrlen;i++)
strs[i] = '<tr>' +
               '<td class="combo-item" onClick="'+this.name+'.choose(\''+arr[i].value+'\',\''+arr[i].text+'\');'+this.name+'.opslist.style.display=\'none\';"' +
               'onMouseOver="this.className=\'combo-hilite\';" onMouseOut="this.className=\'combo-item\'" > '+arr[i].text+' </td>' +
               '</tr>';
str = str + strs.join("") + '</table>'
if(this.opslist){this.view.removeChild(this.opslist);}
this.opslist = document.createElement("DIV")
this.opslist.innerHTML=str;
this.opslist.style.display='none';
this.opslist.className = "combo-list";
this.opslist.onselectstart=returnFalse;
this.view.appendChild(this.opslist);
function ComboBox_toggle()
if(this.opslist)
if(this.opslist.style.display=="block")
this.opslist.style.display="none"
else
this.update();
this.build(this.options);
this.view.style.zIndex = ++ComboBox.prototype.COMBOBOXZINDEX
this.opslist.style.display="block"
else
this.update();
this.build(this.options);
this.view.style.zIndex = ++ComboBox.prototype.COMBOBOXZINDEX
this.opslist.style.display="block"
function ComboBox()
if(arguments.length==0)
self.status="ComboBox invalid - no name arg"
this.name = arguments[0];
this.par = arguments[1]||document.body
this.view = document.createElement("DIV");
this.view.style.position='absolute';
this.options = new Array();
this.expops = new Array();
this.value = ""
this.build = ComboBox_build
this.make = ComboBox_make;
this.choose = ComboBox_choose;
this.add = ComboBox_add;
this.toggle = ComboBox_toggle;
this.update = ComboBox_update;
this.remove = ComboBox_remove;
this.make()
this.txtview = this.view.childNodes[0]
this.valcon = this.view.childNodes[1]
this.par.appendChild(this.view)
Global_combo_array[Global_combo_array.length]=this;
if(Global_run_event_hook){ComboBox_init()}
ComboBox.prototype.COMBOBOXZINDEX = 1000 //change this if you must
function ComboBox_init()
     if (document.addEventListener) {
          document.addEventListener("keyup", ComboBox_handleKey, false );
          document.addEventListener("mousedown", ComboBox_mouseDown, false );
     else if (document.attachEvent) {
          document.attachEvent("onkeyup", function () { ComboBox_handleKey(window.event); } );
          document.attachEvent("onmousedown", function () { ComboBox_mouseDown(window.event); } );
Global_run_event_hook = false;
function returnFalse(){return false}
function ComboBoxItem(text,value)
this.text = text;
this.value = value;
document.write('<link rel="STYLESHEET" type="text/css" href="ComboBox.css">');
If you would like me to post the code for the CSS, let me know.

Tomcat 4.0.x and JSP / JSTL performance problems.

Hello everyone,
I've got a web application where some of my JSP pages are rendering quite slowly. As an example I'll use a JSP page that I wrote for browsing through a user database. It uses two beans...
1. jobBean - Ensures that all of the required (and correct) beans that will be used for processing the request have been loaded.
2. browserBean - A basic JavaBean that holds a set of UserBean(s) and other information pertinent to database queries (start, limit, order).
I'm using Apache Struts to map requests to the appropriate processing modules. Now the problem I'm having is that each request is taking between 1 and 2 seconds to execute. As you can imagine that's not going to allow for very many simaltaneous users. I've tracked the problem down to something JSP related. All of my code executes fairly quickly (I think). It takes about 20-30ms for my code to identify the request, load the requested data from the database, and convert it into a usable format (the browserBean). Here's my code...
<%@ page contentType="text/html"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<META http-equiv="Cache-Control" content="no-cache">
<title>
Browse Users
</title>
</head>
<body>

<jsp:useBean id="jobBean" class="com.vacode.jobs.generic.JobBean" scope="session" />
<jsp:useBean id="browserBean" class="com.vacode.mqdb.beansets.user.UserBrowserBean" scope="session" />



<c:if test="${jobBean.currentJob.name != 'BrowseUserJob'}">
     
     <c:url var="browseUser" value="manageUsers.do">
          <c:param name="action" value="browse" />
     </c:url>
     <c:redirect url="${browseUser}" />
</c:if>
<form action="manageUsers.do" method="get">
     <input type="hidden" name="action" value="browse">
     <input type="hidden" name="start" value="<c:out value="${browserBean.dummyStart}" />">
     <input type="hidden" name="order" value="<c:out value="${browserBean.order}" />">
     I would like to view
     <select name="limit">
          <c:forEach begin="1" end="5" var="current">
               <option value="<c:out value="${current*5}" />"
                    <c:if test="${browserBean.dummyLimit == current*5}">
                    selected
                    </c:if>
               >
                <c:out value="${current*5}" />
               </option>
          </c:forEach>
     </select>
     results per page.
     <input type="submit" action="submit">
</form>
<c:url var="id" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_ID" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="name" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="firstName" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_FIRST_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="lastName" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_LAST_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="email" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_EMAIL_ADDRESS" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="organization" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_ORGANIZATION_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="status" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="USER_STATUS_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<c:url var="role" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="0" />
     <c:param name="order" value="ROLE_NAME" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
</c:url>
<table>
     <tr>
          <td><a href="<c:out value="${id}" />">Id</a></td>
          <td><a href="<c:out value="${name}" />">User Name</a></td>
          <td><a href="<c:out value="${firstName}" />">First Name</a></td>
          <td><a href="<c:out value="${lastName}" />">Last Name</a></td>
          <td><a href="<c:out value="${email}" />">E-Mail</a></td>
          <td><a href="<c:out value="${organization}" />">Organization</a></td>
          <td><a href="<c:out value="${status}" />">Status</a></td>
          <td><a href="<c:out value="${role}" />">User Type</a></td>
     </tr>
<c:forEach items="${browserBean.beans}" var="bean">
     <tr>
          <c:url var="manage" value="manageUsers.do">
               <c:param name="action" value="modify" />
               <c:param name="beanId" value="${bean.userId}" />
          </c:url>
          <td><a href="<c:out value="${manage}" />"><c:out value="${bean.userId}" /></a></td>
          <td><c:out value="${bean.userName}" /></td>
          <td><c:out value="${bean.firstName}" /></td>
          <td><c:out value="${bean.firstName}" /></td>
          <td><c:out value="${bean.email}" /></td>
          <td><c:out value="${bean.organizationName}" /></td>
          <td><c:out value="${bean.statusName}" /></td>
          <td><c:out value="${bean.roleName}" /></td>
     </tr>
</c:forEach>



</table>
<c:url var="next" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="${browserBean.nextPageStart}" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
     <c:param name="order" value="${browserBean.order}" />
</c:url>
<c:url var="previous" value="manageUsers.do">
     <c:param name="action" value="browse" />
     <c:param name="start" value="${browserBean.previousPageStart}" />
     <c:param name="limit" value="${browserBean.dummyLimit}" />
     <c:param name="order" value="${browserBean.order}" />
</c:url>
<c:if test="${browserBean.previousPageStart>-1}">
     <a href="<c:out value="${previous}" escapeXml="false" />">previous</a>
</c:if>
<c:if test="${browserBean.nextPageStart>-1}">
     <a href="<c:out value="${next}" escapeXml="false" />">next</a>
</c:if>
<br>
<br>
Quick Jump To Page:
<c:forEach varStatus="loopTag" items="${browserBean.pageStartValues}" var="current">
<c:choose>
     <c:when test="${loopTag.index+1==browserBean.currentPageNumber}">
          <c:out value="${loopTag.index+1}" />
     </c:when>
     <c:otherwise>
     <c:url var="thisPage" value="manageUsers.do">
          <c:param name="action" value="browse" />
          <c:param name="start" value="${current}" />
          <c:param name="limit" value="${browserBean.dummyLimit}" />
          <c:param name="order" value="${browserBean.order}" />
     </c:url>
     <a href="<c:out value="${thisPage}" />"><c:out value="${loopTag.index+1}" /></a>
     </c:otherwise>
</c:choose>
</c:forEach>
<br>
<br>
Max Possible Pages: <c:out value="${browserBean.maxNumberOfPages}" />
<br>
Current Page: <c:out value="${browserBean.currentPageNumber}" />
</body>
</html>I've added comments where I timed my code from (by writing new Date().getTime() to the console). It usually takes between 1 and 2 seconds for that block of JSP to execute. I wrote a test class that should be very similar to the process (iterating over the forEach loop mainly) and it usually executed in 10ms to 20ms.
I had a look at the servlets that were generated by Tomcat and I noticed that for each <c:url> I used there's about 300 lines of code (with several syncronized() methods). Could this have anything to do with it? If so, what could I do to improve the performance?
Worth mentioning... The machine I am using is an AMD Athlon 1GHZ with 768MB RAM, 7200 RPM UDMA100 IDE HDD.
I'm also using Tomcat integrated with a development environment (IntelliJ IDEA).
Any help that anyone could offer is much appreciated.
Thanks,
Ryan

Can you get acceptable performance if you hack out everything except the browserBean forEach loop? Maybe you are trying to do too much runtime EL evaluation on the page.
If performance improves, you may want to push the URL construction and startValue computations to a Struts Action and put a bunch of objects on the requestScope (like "id_url", "name_url", "pageStartValue").
Putting these computations in the Action would avoid having JSTL parse each of the ${} arguments, evaluating the expressions, and using costly reflection to turn ${browserBean.order} into browserBean.getOrder().

JSP import statement problem

Hey, I got confused with all import statement with jsp.
Here is my problem.
Folder structure:
C:\Program Files\netbeans-4.1\enterprise1\jakarta-tomcat-5.5.7\webapps\ROOT\WEB\S\A
This folder contains a.jsp.
JSP code:
<%@ page
     language="java"
     import="java.sql.*, MyPackage.DataBase"
     errorPage=". . ."
     contentType="text/html; charset=windows-1251"
%>
<%
     Connection connection = null;
     Statement statement = null;
     DataBase dataBase = new DataBase( connection, statement );
%>
...Error message that I get:
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
C:\Program Files\netbeans-4.1\enterprise1\jakarta-tomcat-5.5.7\work\Catalina\localhost\_\org\apache\jsp\WEB\S\A\a_jsp.java:7: package MyPackage does not exist
import MyPackage.DataBase;
                   ^
An error occurred at line: 104 in the jsp file: /WEB/S/A/a.jsp
Generated servlet error:
C:\Program Files\netbeans-4.1\enterprise1\jakarta-tomcat-5.5.7\work\Catalina\localhost\_\org\apache\jsp\WEB\S\A\a100_jsp.java:147: cannot resolve symbol
symbol : class DataBase
location: class org.apache.jsp.WEB.S.A.a_jsp
     DataBase dataBase = new DataBase( connection, statement );
        ^
...How do I import that class so I can use it?
Do I need to use useBean?
What do I need to do?
Thanks

DataBase class does not extend java.sql.
I put this into my jsp page
     import="java.sql.*;"
     import="MyPackage.DataBase;" Here is the error message
Generated servlet error:
C:\Program Files\netbeans-4.1\enterprise1\jakarta-tomcat-5.5.7\work\Catalina\localhost\_\org\apache\jsp\WEB\S\A\a_jsp.java:7: 'class' or 'interface' expected
import MyPackage.DataBase;;
^
1 error
...

JSP & JavaBean: setProperty="*" problems!

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