Cannot a get JSP page instance from a page being destroyed

We have a J2EE app, using Struts + Tiles (build 1.1-b3), running on Win2KPro, Ora9ias v9.0.3. The application is roles-based, and different users see different versions of the same page based on their role authorizations. Occasionally, when multiple users in different roles are requesting the same page, the app returns the following exception:
OracleJSP:
JSP Error:
Request URI:/fast/WEB-INF/jsp/tiles/layouts/baseLayout.jsp
Exception:
javax.servlet.ServletException: Cannot a get JSP page instance from a page being destroyed
     at oracle.jsp.runtimev2.JspPageInstFacade.getInstance(JspPageInstFacade.java:147)
     at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:303)
     at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:465)
     at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:379)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:283)
     at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
     at com.gal.fast.portal.web.SessionInitializedFilter.doFilter(SessionInitializedFilter.java:105)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:556)
     at com.evermind.server.http.ServletRequestDispatcher.include(ServletRequestDispatcher.java:119)
     at org.apache.struts.tiles.TilesUtilStrutsModulesImpl.doInclude(TilesUtilStrutsModulesImpl.java:124)
     at org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:161)
     at org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:703)
     at org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:818)
     at org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:467)
     at web2d_inf._jsp._tiles._layouts._baseLayout._jspService(_baseLayout.java:445)
     [SRC:/WEB-INF/jsp/tiles/layouts/baseLayout.jsp:149]
     at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
     at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:317)
     at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:465)
     at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:379)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:283)
     at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
     at com.gal.fast.portal.web.SessionInitializedFilter.doFilter(SessionInitializedFilter.java:105)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:556)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306)
     at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:209)
     at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1033)
     at org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:269)
     at org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRequestProcessor.java:249)
     at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:303)
     at org.apache.struts.action.RequestProcessor.processActionForward(RequestProcessor.java:401)
     at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
     at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1422)
     at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:505)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
     at com.gal.fast.portal.web.FastActionServlet.service(FastActionServlet.java:110)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:283)
     at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
     at com.gal.fast.portal.web.SessionInitializedFilter.doFilter(SessionInitializedFilter.java:105)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:556)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:767)
     at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:148)
     at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:72)
     at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803)
     at java.lang.Thread.run(Thread.java:536)
All the code in the two custom classes above ( com.gal.fast.portal.web.SessionInitializedFilter and com.gal.fast.portal.web.FastActionServlet ) has been commented out to the point that they are NOOP stubs.
We only see this with multiple near-simultaneous requests for the same page with differet roles. It smells like a threading issue to me, but I'm no expert (hence this post). Any thoughts?
--matt

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locList = request.getParameter("location");when I do so, I get compilation error as the request returns string type. How do I then get multiple selections made by the user.
Please let me know.

For those kind of basic questions it would help a lot if you just gently consult the javadocs and tutorials.
HttpServletRequest API: [http://java.sun.com/javaee/5/docs/api/javax/servlet/http/HttpServletRequest.html]
Java EE tutorial part II: [http://java.sun.com/javaee/5/docs/tutorial/doc/]
Coreservlet tutorials: [http://courses.coreservlets.com/Course-Materials/]

How to get the value from a database without submitting a jsp page

I have a jsp which has a text box depending on the value entered I want to get the value from a database for other two fields with out submitting jsp page. I am using struts.
Thanks For any assistance provided.

Alright,here is an example for you for the first case.
Present.jsp:
============
<html:html>
<head>
<title><html:message key="page.title"/></title>
</head>
<body>
<html:form action="ChangeEvent.do">
<html:hidden property="method"/>

Emp Id:<html:text property="empId" size="5" onkeyup="if(true){this.form.elements[0].value='populateDetails';this.form.submit();}"/>
Emp Name:<html:text property="empName" size="10" />
Email Address:<html:text property="email" size="10" />
<html:submit>Submit</html:submit>
</html:form>
</body>
</html:html>struts-config.xml:
==================
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>

<form-beans>
<form-bean name="employeeFormBean" type="org.apache.struts.action.DynaActionForm">
   <form-property name="empId" type="java.lang.String"/>
   <form-property name="empName" type="java.lang.String"/>
   <form-property name="email" type="java.lang.String" />
</form-bean>
</form-bean>
<action-mappings>
<action path="/ChangeEvent" type="Test.GetChangeAction" name="employeeFormBean" scope="request" parameter="method">

<forward name="success" path="/Present.jsp"></forward>
<forward name="failed" path="/error.jsp"></forward>
</action>
</action-mappings>
</struts-config>GetChangeAction.java:
=====================
public class GetChangeAction extends DispatchAction{
public ActionForward populateDetails(ActionMapping mapping,ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
        DynaActionForm dForm = (DynaActionForm)form;
        String empId = dForm.get("empId");
        // calling Model / Db and then getting back Employee Details
        EmployeeBean eb = ModelUtils.getDetails(empId);
        // Updating form bean by updating values from the Model
        dForm.set("empName".eb.getEmpName());
        dForm.set("email".eb.getEmail());
        return mapping.findForward("success");
}well to me this should work regardless to any browser but we need to make sure we put in our logic properly.

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.

Unable get complete filepath from jsp page using request.getParameter()

Hey all,
i am actually trying to get the selected file path value using request.getParameter into the servlet where i will read the (csv or txt) file but i dont get the full path but only the file name(test.txt) not the complete path(C:\\Temp\\test.txt) i selected in JSP page using browse file.
Output :
FILE NAME : TEST
FILE PATH : test.txt
Error : java.io.FileNotFoundException: test.txt (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:106)
at java.io.FileReader.<init>(FileReader.java:55)
at com.test.TestServlet.processRequest(TestServlet.java:39)
at com.test.TestServlet.doPost(TestServlet.java:75)
JSP CODE:
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>DEMO SERVLET</title>
</script>
</head>
<body>
<h2>Hello World!</h2>
<form name="myform" action="TestServlet" method="POST"
FILE NAME : <input type="text" name="filename" value="" size="25" /><br><br>
FILE SELECT : <input type="file" name="myfile" value="" width="25" /><br><br>
<input type="submit" value="Submit" name="submit" />
</form>
</body>
</html>
Servlet Code :
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, FileNotFoundException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
String filename = request.getParameter("filename");
out.println(filename);
String filepath = request.getParameter("myfile");
out.println(filepath);
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet TestServlet</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet TestServlet at " + request.getContextPath() + "</h1>");
if (filepath != null) {
File f = new File(filepath);
BufferedReader br = new BufferedReader(new FileReader(f));
String strLine;
String[] tokens;
while ((strLine = br.readLine()) != null) {
tokens = strLine.split(",");
for (int i = 0; i < tokens.length; i++) {
out.println("<h1>Servlet TestServlet at " + tokens[i] + "</h1>");
out.println("----------------");
out.println("</body>");
out.println("</html>");
} finally {
out.close();
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
Needed Output :
FILE NAME : TEST
FILE PATH : C:\\Temp\\test.txt
Any suggestions Plz??

As the [HTML specification|http://www.w3.org/TR/html401/interact/forms.html] states, you should be setting the enctype to multipart/form-data to be able to upload files to the server. In the server side, you need to process the multipart/form-data binary stream by parsing the HttpServletRequest#getInputStream(). It is a lot of work to get it to work flawlessly. There are 3rd party API's around which can do that for you, such as [Apache Commons FileUpload|http://commons.apache.org/fileupload] (carefully read the User Guide how to use it).
You can also consider to use a Filter which makes use of the FileUpload API to preprocess the request so that you can continue writing the servlet code as usual. Here is an example: [http://balusc.blogspot.com/2007/11/multipartfilter.html].

Cannot a get JSP page instance from a page being destroyed

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