Need to refresh the jsp page

Hello Everyone,
I am not sure if I can tackle the below issue with just html or I need to control it throught my servlet, so posting it on this forum, in case it is a pure html issue, please let me know.
So here is the current situation:
My jsp page gets data from servlet and displays it in a html table. The fields are criteria, median, average...cells of average, median etc are color coded, green, yellow or red, depending on whether the criteria is met or not.
on wish list:
I want the column "criteria" to be of text type so that the user can change the criteria value and see what effect does it have on the colors of columns "average", "median" etc. I do not want to write this changed criteria value back to db, I just want my jsp page to refresh every time user changes value in criteria text box and recalculate the color code for the rest of the columns.
Here is what my jsp page looks like
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib uri="http://paginationtag.miin.com" prefix="pagination-tag"%>
<html>
<body>
<table border="1">
    <c:forEach items="${sheetDataList}" var="releaseData">
    <tr>
      <td align="center"><input type="text" name="newcriteria" value="${releaseData.releasecriteria}" size="25"></td>
      <c:set var="yellowmark" value="${0.25*releaseData.releasecriteria+releaseData.releasecriteria}"/>
      <c:choose>
        <c:when test="${releaseData.average lt releaseData.releasecriteria}">
          <td bgcolor="green" align="center"><c:out value="${releaseData.average}"/></td>
        </c:when>
        <c:when test="${releaseData.average lt yellowmark}">
          <td bgcolor="yellow" align="center"><c:out value="${releaseData.average}"/></td>
        </c:when>
        <c:when test="${releaseData.average gt yellowmark}">
          <td bgcolor="red" align="center"><c:out value="${releaseData.average}"/></td>
        </c:when>
      </c:choose>
</table>
</body>
</html>Thanks.

I don't know what you are doing wrong in your code, but it seems like you are calling the JS function correctly. My feeling is there is some JS error occurring, maybe use a javascript debugger or some alerts to see where the problem is. I made as close a copy of your code I could (with some improvised improvements for keeping track of row counts and accessing the the values for the first 2 columns of the table). At the top I filled to Lists with data so I could cycle through the rows and columns. Then I do the JavaScript and the CSS, followed by the table generation.
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%
    java.util.List<java.util.List<luke.steve.RowObject>> sheetDataList = new java.util.ArrayList<java.util.List<luke.steve.RowObject>>();
    for (int r = 0; r < 10; r++) {
        java.util.List<luke.steve.RowObject> userActionData = new java.util.ArrayList<luke.steve.RowObject>();
        for(int c = 0; c < 5; c++) {
             userActionData.add(new luke.steve.RowObject());
        sheetDataList.add(userActionData);
    request.setAttribute("sheetDataList", sheetDataList);
%>
<html>
<head>
    <script type="text/javascript">
    
    </script>
    
    <style type="text/css">
      .green
       background-color: green;
      .red
        background-color: red;
      .yellow
        background-color: yellow;
    </style>
    <title>Color Switcher</title>
</head>
<body onload="setAllColors();" onunload="">
    <table border="1">
      <tbody>
        <c:forEach var="userActionData" items="${sheetDataList}" varStatus="rowCounter">
          <tr name="row${rowCounter.count}" id="row${rowCounter.count}">
            <td>${userActionData[0].userAction}</td>
            <td><form onsubmit="setColors(${rowCounter.count}); return false;"><input name="criteria" type="text" value="${userActionData[0].releaseCriteria}"/></form></td>
            <c:forEach var="releaseData" items="${userActionData}" varStatus="colCounter">
              <td>${releaseData.ninetyPercentile}</td>
            </c:forEach>
          </tr>
        </c:forEach>
      </tbody>
    </table>
</body>
</html>I made a dummy class called luke.steve.RowObject to hold the data (represents on releaseData object). The class just generates a bunch of random numbers for this test:
package luke.steve;
public class RowObject {
     public Integer getReleaseCriteria() {
          return Double.valueOf(Math.random()*500.0).intValue();
     public Integer getNinetyPercentile() {
          return Double.valueOf(Math.random()*500.0).intValue();
     public String getUserAction() {
          return "Action "+Double.valueOf(Math.random()*10.0).intValue();
}In this example it works in FF3 and IE7 (though it looks nicer in FF3).

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this is the code ..
if (abs==1
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if (abs==2)
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Values on the jsp page not loading after refresh

Hi All,
I have a problem in getting the values back onto the jsp page after a refresh. After the first refresh i get null values.
Let me know what i should use: is it 1. request 2. application or 3. session scope? I have to keep my application running for ever (as long as the server is running) refreshing every 3 minutes. So i used application scope but in vain.
Also i am using requestDispatcher and forwarding the req,res. I came to know that this method has some problems if we use request attributes. Do i need to use a send.Redirect instead?
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Gouri-Java wrote:
Hi All,
I have a problem in getting the values back onto the jsp page after a refresh. After the first refresh i get null values.
Let me know what i should use: is it 1. request 2. application or 3. session scope? I have to keep my application running for ever (as long as the server is running) refreshing every 3 minutes. So i used application scope but in vain.
Also i am using requestDispatcher and forwarding the req,res. I came to know that this method has some problems if we use request attributes. Do i need to use a send.Redirect instead?
Let me know the correct procedure.
Thanks in advance.r u forwarding request to same page. ?
try using sendRedirect with URL rewriting:
for eg .
response.sendRedirect("/myPage.jsp?id="+idValue+"");
and access id on page submit.
as
request.getParameter("id");
This should work .
Edited by: AmitChalwade123456 on Jan 6, 2009 7:10 AM

Help needed urgently to get the values from the jsp page.

hi,
I am badly stuck into this problem.Please help me and find a solution.
I am using ms-access and jsp.
my database structure is as given below:
m_emp_no | from_date | to_date | approver| status |
1002 | 22/9/2008 | 23/9/2008|1003 |pending
1004 | 29/9/2008 | 30/9/2008|1003 |pending
2044 | 15/9/2008 | 16/9/2008|3076 |pending
now this is exactly a leave apply scenario where a page is displayed and the user has to fill in the details to apply leave.then the approver has to approve that leaves so even, he should get the details in his account.
for example here 1003 has to approve leaves for 1002 & 1004.i am able to fetch data from database for the particular approver here is the coding:
<html>
<body>
<h2 align="center"><u><b><span style="background-color: #FFFFFF"><font color="#C0C0C0" face="Comic Sans MS">Leave
Approval Requests</font></span></b></u></h2>
<form method="POST" name="f1" action="update.jsp">
<%
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:employee_details");
PreparedStatement p=null;
p=con.prepareStatement("select * from emp_leave_application where approver='"+username+"'");
ResultSet r=p.executeQuery();
while(r.next())
%> <table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
    <tr>
      <td width="100%" bgcolor="#999966"><b><u><%=r.getString(2)%></u></b></td>
    </tr>
</table>
<table border="1" width="100%" height="171" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
    <tr>
      <td width="100%" height="165" valign="top">
        <p align="left"><b>User ID</b>        :
<input type="text" name="id" value="<%=r.getString(1)%>" size="4
     <b>status</b>:<%=r.getString(5)%</p>
<p><b>Leave From</b> : <%=r.getString(2)%></p>
<p><b>Leave From</b> : <%=r.getString(3)%></p>
<p><b>Approve</b> : <select size="1" name="approved">
        <option value="Approved">Approved</option>
        <option value="Cancelled">Cancelled</option>        </select></p>
<%
con.close();
%>
<table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
          <tr>
            <td width="100%" bgcolor="#999966">
              <p align="center"><input type="reset" value="Clear" name="B1">
              <input type="submit" value="Submit" name="B2"></td>
          </tr>
        </table>
        </td>
    </tr>
</table>
</form>
</body>
</html>{code}
this will display both the rows but when i try to retrieve the values into update.jsp using the code given below it gives me only one value which is the first 1002.
{code}approved=(String)request.getParameter("approved");
id=(String)request.getParameter("id");{code}
but i need both the values to be inserted into the update.jsp only then the approver will be able to approve the leaves individually with respect to the m_emp_no.
please help me out.
thanks in advance.

My comments below are all between (((((( and ))))))
<html>
<body>
<h2 align="center"><u><b><span style="background-color: #FFFFFF"><font color="#C0C0C0" face="Comic Sans MS">Leave
Approval Requests</font></span></b></u></h2>
<form method="POST" name="f1" action="update.jsp">
<%
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:employee_details");
PreparedStatement p=null;
p=con.prepareStatement("select * from emp_leave_application where approver='"+username+"'");
ResultSet r=p.executeQuery();
while(r.next())
%> <table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" bgcolor="#999966"><b><u><%=r.getString(2)%></u></b></td>
</tr>
</table>
<table border="1" width="100%" height="171" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" height="165" valign="top">
<p align="left"><b>User ID</b> :
<input type="text" name="id" value="<%=r.getString(1)%>" size="4
((((((( in the statement above, name="id" should be changed to something like name="id"<%=ii%>
Where ii is a counter that tells you how many times you have gone through the loop so far.
The reason for this is that each textfield you generate must have a unique name rather than all have the same name
such as 'id'. This change will give them names such as id0, id1, id2. Then when you submit the page, you can uniquely
identify each input textfield.))))))
<b>status</b>:<%=r.getString(5)%</p>
<p><b>Leave From</b> : <%=r.getString(2)%></p>
<p><b>Leave From</b> : <%=r.getString(3)%></p>
<p><b>Approve</b> : <select size="1" name="approved">
(((( the above select also has to have a unique name for each time through the loop. Change it to name="approved"<%=ii%>
<option value="Approved">Approved</option>
<option value="Cancelled">Cancelled</option> </select></p>
<%
con.close();
%>
<table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" bgcolor="#999966">
<p align="center"><input type="reset" value="Clear" name="B1">
<input type="submit" value="Submit" name="B2"></td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</body>
</html>
(((((((note you would be better off long term to put your business logic in a servlet and dispatch to the JSP page which will only have the responsiblity to display the data.
Also, connection pooling is better than the above.

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Refreshing the page
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Here is my small code base
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The following two javascript lines will only set the action value of the form and does nothing else. No server call will be made.
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I am not able to fined appropriate link in Google.
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a tree model
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that should provide you with the structure in html.
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<ul>
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</style>
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Mr_Light
stuurff [at] hotmail.com

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regards,
Martin

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I am new to servlets/jsp so excuse if I am doing something silly here:
I have a JSP page the suppose to be loading a session attrbute from a simple servlet. When I go to load the jsp page, I get Could not invoke the service() method.
Any help is much appreciated:
Here is my JSP:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
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<%@ page session="true" import="insurance.PolicyObj,java.util.*"%>
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<HTML>
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package insurance;
import java.io.IOException;
import java.util.Vector;
import javax.servlet.RequestDispatcher;
import javax.servlet.Servlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
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     * @see javax.servlet.http.HttpServlet#HttpServlet()
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     * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest arg0, HttpServletResponse resp)
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Message was edited by:
sfz1
Message was edited by:
sfz1

I am new to servlets/jsp so excuse if I am doing something silly here:
I have a JSP page the suppose to be loading a session attrbute from a simple servlet. When I go to load the jsp page, I get Could not invoke the service() method.
Any help is much appreciated:
Here is my JSP:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
     pageEncoding="ISO-8859-1"%>
<%@ page session="true" import="insurance.PolicyObj,java.util.*"%>
<% Vector VTable = (Vector) session.getAttribute("policyTable"); %>
<HTML>
<BODY>
<Form name=listTable action="InsSer" method="post">
<TABLE border="1">
     <TBODY>
          <TR>
               <TD width="258" align="center"><B>Policy Id</B></TD>
               <TD width="187" align="center"><B>Customer Name</B></TD>
               <TD width="160" align="center"><B>Agent Name</B></TD>
               <TD width="134" align="center"><B>Status</B></TD>
          </TR>
          <TR>
<%
for (int index=0; index < VTable.size();index++) {
PolicyObj TableL = (PolicyObj) VTable.elementAt(index);
%>
     <TR bgcolor="#99CCFF">
<TD width="258" align="center"> <%= TableL.getPolicyId()%> </TD>
<TD width="187" align="center"> <%= TableL.getCustomerName()%> </TD>
<TD width="187" align="center"> <%= TableL.getAgentName() %> </TD>
<TD width="187" align="center"> <%= TableL.getPolicyStatus() %></TD>
</TR>
     <% } %>
     </TBODY>
</TABLE>
<P><INPUT type="submit" name="Submit" value="Refresh Active Policies"></P>
</BODY>
</HTML>
Here is my servlet:
package insurance;
import java.io.IOException;
import java.util.Vector;
import javax.servlet.RequestDispatcher;
import javax.servlet.Servlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class InsSer extends HttpServlet implements Servlet {
     /* (non-Java-doc)
     * @see javax.servlet.http.HttpServlet#HttpServlet()
     public InsSer() {
          super();
     /* (non-Java-doc)
     * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest arg0, HttpServletResponse resp)
     protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
          doPost(req,resp);
          // TODO Auto-generated method stub
     /* (non-Java-doc)
     * @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest arg0, HttpServletResponse resp)
     protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
          //PolicyObj[] policyTable = new PolicyObj[3];
          HttpSession session = req.getSession(false);
          //if (session == null) {
               //resp.sendRedirect("http://localhost:9080/Insurance/error.html");
          //Vector buylist = (Vector) session.getAttribute("PolicyList");
          Vector policyList = null;
          policyList.addElement(new PolicyObj());
          ((PolicyObj) policyList.get(0)).setPolicyId("0009800002");
          ((PolicyObj) policyList.get(0)).setCustomerName("Salim Zeitouni");
          ((PolicyObj) policyList.get(0)).setAgentName("Jack Smith");
          ((PolicyObj) policyList.get(0)).setPolicyStatus("Pending");
          session.setAttribute("policyTable",policyList);
          ServletContext sc = getServletContext();
          RequestDispatcher rd = sc.getRequestDispatcher("InsSev1.jsp");
          rd.forward(req,resp);
Message was edited by:
sfz1
Message was edited by:
sfz1

Tags not recognized when compiling the jsp pages through appc

Hi:
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However, the tag file is there.
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<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
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web.xml:
<taglib>
<taglib-uri>http://name/cps/tagfiles</taglib-uri>
<taglib-location>/WEB-INF/tld/mytags.tld</taglib-location>
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mytags.tld:
<taglib xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"
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<uri>mytaglib</uri>
<tag-file>
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<path>/WEB-INF/tags/agreementDetailsLayout.tag</path>
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<taglib-uri>http://name/app/tagfiles</taglib-uri>
<taglib-location>/WEB-INF/tags</taglib-location>
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Is it possible to refresh the home page or report page automatically?

Hi.
I'm develping EM plugin with EM 11 extensibility.
Is it possible to auto refresh the home page or report page?
It contains the view data(real time 30 sec page..) select list combo at the matric detail page.
and it is displayed on the right of the top at the database main page
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Edited by: wonjo on Oct 5, 2010 10:49 PM

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Now the Resultant string "CCR " has three spaces appended to its right.
This String is set in session in that JSP page.
In the next JSP page i am getting that string from session.
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Vijay

have you tried:
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post the code that is doing the output. the relevant bean code, the jsp, everything relevant - WITH COMMENTS discussing where things are happening.
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Please help me with the jsp page

Hi,
I have a parent jsp page. I have a button in that page. If I click the button in the parent page, a child page will be opened which consists of huge data. I have set an option such that if I click the jsp page it asks to open directly or save so as to edit the data in MSWORD format. The child page has a print button at the end of the page which prints all the data. But since the data is very vast I want page breaks at certain places so that when I edit the data and click print button it prints the data with page breaks at certain points. I know that in MSWORD we have page breaks. But I should not do it manually as there would be thousands and thousands of pages to be printed.
ANY IDEA OR HELP IN THIS MATTER IS GREATLY APPRECIATED. I HAVE BEEN TRYING TO SOLVE THIS MATTER AND POSTED IN MANY SITES. BUT NOBODY RESPONDED. ATLEAST PLEASE LET ME KNOW IF THE IDEA WHICH I MENTIONED IS WORNG OR NOT.
THANKYOU
MOUNTAINEER

use java report?

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On the bottom of the MBP is the serial number. Enter it here and post back the results:
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This will identify the exact MBP that you have.
Ciao.
The system is under maintenance now. Try this link instead:
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Message was edited by: OGELTHORPE

Need to refresh the jsp page

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