JSP and Tomcat Problem

Folks,
My apologies if this is off-topic for this forum, but I've been having this problem using Tomcat and JSP. I'm fairly new to Java.
Basically, I'm writing a webapp that uses servlets and JSP together. The servlet and backend classes all compile fine. Now, basic frontend page is called Console.jsp, and one of the commands that it runs is <%@ page import="DJUser">
Here's the problem: Console.jsp is in $CATALINA_HOME/webapp/
DJUser (and the rest of the classes I'm using) are in $CATALINA_HOME/webapp/WEB-INF/classes
When I attempt to run Console.jsp I get this error:
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
The import DJUser cannot be resolved
An error occurred at line: 9 in the jsp file: /Console.jsp
Generated servlet error:
DJUser cannot be resolved to a type
An error occurred at line: 11 in the jsp file: /Console.jsp
Generated servlet error:
user cannot be resolved
An error occurred at line: 11 in the jsp file: /Console.jsp
Generated servlet error:
DJUser cannot be resolved to a type
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
     org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:409)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
The ROOT CAUSE is listed as:
java.lang.ClassNotFoundException: org.apache.jsp.Console_jsp
     java.net.URLClassLoader$1.run(URLClassLoader.java:200)
     java.security.AccessController.doPrivileged(Native Method)
     java.net.URLClassLoader.findClass(URLClassLoader.java:188)
     org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:133)
     org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:65)
     org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:596)
     org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:137)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
I'm running Tomcat 5.5.12 on Mac OS X 10.4. Could this be a permissions issue somehow? For right now (testing purposes only) I have tomcat running under my (non root) account.
I've been scouring the web for a while, and I can't really find anything on this. I'd appreciate any help you could give me.
Thanks!
Dylan

Put the DJUser java file in a package (say com.myClasses) and recompile. Then put the DJUser class file under the WEB-INF/classes directory in the proper package structure (WEB-INF/classes/com/myClasses/DJUser). Stop and restart the server to pick up the new classes. Make sure to change the jsp import statement ( <%@ page import="com.myClasses.DJUser">)

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I need UR help
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Now the problem is when i run my jsp in web browser with path
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hi there,
Thanks for you time, here i have placed the source for jsp and javabean
Please excuse me if you find the code unproper
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response.setDateHeader("Expires",0);
response.setHeader("Cache-control","No-cache");
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body background="images/c.jpg" bgproperties="fixed">
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<%@ page import="javax.servlet.*" %>
<%@ page import="java.io.*" %>
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<%@ page import="java.util.Date" %>
<%@ page import="java.sql.Timestamp" %>
<%@ page import="java.text.*" %>
<%@ page import="java.lang.*" %>
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String rdb = request.getParameter("rb");
String key = request.getParameter("key");
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sql = "SELECT * FROM crequired WHERE queryno LIKE '"+qrno+"%'";
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sql = "SELECT * FROM crequired ORDER BY adate DESC";
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if(rdb==null)
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//ps.setString(1,space);
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ps.setString(1,st);
ps.setString(2,space);
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%>
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</tr>
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</form><br>
Back
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int h3= navi.getcount();
int offset=(h3-h1)<h2?h3:(h1+h2-1);
%>
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int c5=c3-c2;
%>
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%>
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<th width="5%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Clarification
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<th width="8%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Date
& Time Visited On</font></th>
<th width="7%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Date
& Time Closed On</font></th>
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%>
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<b><%String fnm = rs.getString("fname");
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%></b></font></td>
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<font size="2" face="Verdana, Arial, Helvetica, sans-serif">Back to
Main Menu</font>
</body>
</html>
Code for javaBean:
package arvato.interclarification;
import javax.servlet.http.*;
import java.sql.*;
public class rqchunk
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               rs.absolute(1);
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          public void setcursor()throws SQLException
               cursor++;
               rs.absolute(cursor);
          public void setcursor(int i)throws SQLException
               cursor=i;
               rs.absolute(cursor);
          public int getcursor()
               return cursor;
          public int getchunk()
               return chunk;
          public void setchunk(int i)
               chunk=i;
          public void setcount(int j)
               count=j;
          public int getcount()
               return count;
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Please excuse me if my codes are not understandable enough
Thanks
Amit

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          ability to make a selection from the drop down list and have the page change
          to the correct page automatically or it can allow the user to change and
          have them click on a link that passes the value of the select box as a
          parameter to the proper page.
          The problem is that each row CAN NOT be in it's own form. The action for
          the current form is NOT the action I want the select box to use.
          I can't seem to figure out how to get the value of the select box in
          javascript passed as a parameter using a JSP variable.
          Example code:
          <form method="post" action="/index.jsp">
          <table>
          <tr>
          <td> Remove Row? </td>
          <td> View Options? </td>
          <td> Name </td>
          </tr>
          <tr>
          <td> <input type=checkbox name='<%=rowNumber %>' value='<%=
          someCheckboxValue %>'> </td>
          <td> <select name=selectOptions>
          <option value="option 1">option1</option>
          <option value="option 2">option2</option>
          <option value="option 3">option 3</option>
          </select>
            View Option
          </td>
          <td> <%= rowName %> </td>
          </tr>
          <tr>
          <td colspan="3"> <input type=button name='UpdateExampleForm'
          value='Submit'> </td>
          </tr>
          </table>
          </form>


actually i am taking menus from database in file ourmenu.jsp
and i have another file called menu.js which displays the menus on browser
menu.js is the file which i have downloaded from net
and i want to use at it is but with a difference that it should display the menus which r coming from database
in file ourmenu.jsp i have saved the menus in array so can anyone tell me how to refer them in my .js file.
i have tried with foll. code::
var aUsername =new array();
<% i=0;
while (padtemp[i] != null)
%>
aUsername[<%= ++i%>] = "<%= padtemp[i] %>";
in .js file but i am getting no o/p on browser
i have tried with runat=server while including the .js file in .jsp file but its not working too.
can anyone help please
thanks in advance

Oc4j and tomcat problem ....very urgent..pl respond

Hi.Avi and all
here we r working with oc4j as ejb container and tomcat as webcontainer.as of now we r in oc4j as both webserver and appsrver.in this case my application is running successfully.but just week days we have decide to use tomcat as webserver and 0c4j as appserver.this is my client requirement.when we r working with thses two iam keeping my web files in tomcat and iamtrying to acess ejb's deployed on oc4j.in this scenarion iam struggling with ejb handle of stateful session bean.
here is the exact prob iam facing:
We have got the EJBHandle for EjboBJECT. We have placed the Handle in session and while retrieving EJBObject from it the container is throwing OrionRemoteException.
-----THIS IS STACK TRACE OF MY ERROR----$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$$$$$$$ BEFORE ezc.client.EzcPurchaseUtilManager$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
FW >>>>> In the prepareParams.....[Session handle EzUserHome: 1]
09/05/2002 - 22:12:15 :: ******************** session test in the utilmanager ***********
09/05/2002 - 22:12:15 :: EzSession: ezc.session.EzSession@2942da handle is: [Session handle EzUserHome: 1]
****************** Exception com.evermind.server.rmi.OrionRemoteException: The EJBHome could not be found at location 'EzUserHome'class com.evermind.server.rmi.OrionRemoteException
Exception com.evermind.server.rmi.OrionRemoteException: The EJBHome could not be found at location 'EzUserHome'class com.evermind.server.rmi.OrionRemoteException
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$$$$$$$ BEFORE ezc.client.EzcPurchaseUtilManager$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
FW >>>>> In the prepareParams.....[Session handle EzUserHome: 1]
09/05/2002 - 22:12:15 :: ******************** session test in the utilmanager ***********
09/05/2002 - 22:12:15 :: EzSession: ezc.session.EzSession@2942da handle is: [Session handle EzUserHome: 1]
****************** Exception com.evermind.server.rmi.OrionRemoteException: The EJBHome could not be found at location 'EzUserHome'class com.evermind.server.rmi.OrionRemoteException
Exception com.evermind.server.rmi.OrionRemoteException: The EJBHome could not be found at location 'EzUserHome'class com.evermind.server.rmi.OrionRemoteException
Can anyone write to me on this.
thx..
Vasu

Hi,
I tried this on OC4J 9.0.3 production ( http://otn.oracle.com ) and Tomcat 4.0.1 (Catalina). I have a SF session bean deployed on OC4J, a web app deployed on tomcat. web.xml has ejb references added.
The code in first JSP is like this..
java.util.Properties prop = System.getProperties();
prop.put(Context.INITIAL_CONTEXT_FACTORY,
"com.evermind.server.rmi.RMIInitialContextFactory");
prop.put(Context.PROVIDER_URL, "ormi://localhost:23891/current-workspace-app");
prop.put(Context.SECURITY_PRINCIPAL, "admin");
prop.put(Context.SECURITY_CREDENTIALS, "welcome");
Context ctx = new InitialContext(prop);
HealthCareServiceHome h = HealthCareServiceHome)PortableRemoteObject.narrow(ctx.lookup("HealthCareService"),HealthCareServiceHome.class);;
HealthCareService js = h.create();
Handle eh = js.getHandle();
session.setAttribute("Eh",eh);
and in a second JSP, I access this stateful session bean like this...
Handle eh= (Handle)session.getAttribute("Eh");
HealthCareService s = (HealthCareService)eh.getEJBObject();
// do something on this instance. Everything works fine
I dont know what versions of tomcat/oc4j you are using, may be an upgrade will help?
Thanks,
Neelesh
OTN Team @ IDC

Problem with html:select or html:options tags using struts,jsp and tomcat

Hi
I'm updating a Struts-Project to a new layout and therefore rework all jsp Sites.
I'm also using a new Folder-Structure and update therefore my struts-config file.
My Problem now is:
Till now, we had a select-field with a code like this:
< html:form action="/timetableAction" method="POST">
< table width="53%" border="0">
< tr>
< td>< html:radio property="dauer" value="semester"
/></ td>
< html:select property="semester" size="1">
< htmlptions name="semesterList" />
</ html:select>
</ html:form>
The problem now is, that whenever I use any <html:xy> tag, the tomcat server I use can not show the page, he shows just the headers of the template, but not the
content.-jsp-File where the form would be in. He stops right in the middle of the html page, when he notices the <html:xy> tags.
And the funny thing is, that he has no problem to show a page when there is a <html:errors> within it? Why could this be? the struts-html.tld File is well included and teh Tomcat Server shows no exceptions.
Waiting for you answers and thanks

Thank you, I already got the answer in another forum

Cookie Problem With JSP and Tomcat

I have a tiny web application developed for my project thing.
I am facing a problem while maintaining sessions with Cookie. I use Tomcat 3.2.1 Web Server and JSP 1.2 Specifications for my web application.
I have created a page which creates a cookie and stores it in the client's PC, so when the same client visits the site, he can be remembered. Now while surfing the site in the same session, the site remembers the client. But once the client closes the browser and tries connecting to the site, he cannot be remembered. So I took a look into Temporary Internet Files of the client PC and found no cookie there. So where the cookie gets created and why does it disappears with the session. I have set a time limit of 1 year in the cookie.
Now is that a Problem with Tomcat or with the configuration settings of IE in the client PC?? Or something else???
Reply me Soon...

Thanks for your reply.
following is the code for how do i create a cookie...
<%
     String custno = custBean.createPreferred();
     Cookie c = new Cookie("pc", custno);
     c.setVersion(1);
     c.setPath("/");
     c.setComment("PreferredCustomer");
     c.setDomain("think_machine");
//think_machine is the name of the Web Server(Tomcat)
     c.setMaxAge(365*24*60*60);
     response.addCookie(c);
%>
And the code to read a cookie is..
     String custID = null;
     Cookie[] cookies = request.getCookies();
     for(int i = 0; i < cookies.length; i++)
          if(cookies.getName().equals("pc"))
               custID = cookies[i].getValue();
               break;
One more thing I would like to let you know, that i access this from the same PC on which the Web Server is installed. Means the Server and the client are both one and the same PC.

Problem with jsp and tomcat

Hi ,
I am trying to retrieve data from mysql server using Tomcat webserver of java web services developers pack. i wrote an html page that sends the account_no and password of my program to a JSP page which retrieve data from MySQL server to check whether the account no and password is valid or not . but when i start tomcat and run the html page and submit the onformation the Tomcat gives an error. i am attaching my full programs here. please someone help me.
mybank.html:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> My Bank </TITLE>
</HEAD>
<BODY>
<h1>Please Enter Your Account Number and Password</h1>
<form action="mybank.jsp" method="post">
<h2>Account Number:</h2>
<input type="text" name="accno" maxlength="10" size="10"></br>
<h2>Password:</h2>
<input type="text" name="pass" maxlength="8" size="8"></br>
<input type="submit" value="SUBMIT YOUR INFO">
</form>
</body>
</html>
mybank.jsp:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<%@ page import="java.sql.*" %>
<HTML>
<HEAD>
<TITLE> My Bank JSP </TITLE>
</HEAD>
<BODY>
<% int acc_no = request.getParameter("accno");
String password=request.getParameter("pass");
class.forName(com.mysql.jdbc.Driver);
Connection con= DriveManager.getConnection("jdbc:mysql:///password","root", "firehouse" );
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery("SELECT account_no, password FROM pass WHERE password ='password' && account_no='acc_no' ");
while(rs.next())
int account=rs.getInt(1);
String passw=rs.getString(2);
if(rs!=null)
rs.close();
if(stmt!=null)
stmt.close();
if(con!=null)
con.close();
%>
<h2>Accountno:<%= account %></h2>
<h2>Password:<%= passw %></h2>
</BODY>
</HTML>
i am getting this error:
org.apache.jasper.JasperException: Unable to compile class for JSP
No Java compiler was found to compile the generated source for the JSP.
This can usually be solved by copying manually $JAVA_HOME/lib/tools.jar from the JDK
to the common/lib directory of the Tomcat server, followed by a Tomcat restart.
If using an alternate Java compiler, please check its installation and access path.
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:128)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:348)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:415)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:455)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:555)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:300)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:293)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
but i already set up the java compiler though i m getting this error. please help me.

You say you have set up the environment variables, but it is not working. You may have them set to the wrong thing. One common mistake is to point JAVA_HOME at the java/bin directory rather than just the /java directory.
Another set of eyes finds small mistakes in the variables that you might not spot yourself.
So please, post:
The values of these environment variables
The path to where the products are installed on your system (ie is it c:\java or c:\j2se1_4_2 or c:\program files?
I would take another close look at that JAVA_HOME variable to make sure of it :-)
Good luck,
evnafets

Jsp and db2 problem

Hi guys:
I installed tomcat4, db2 run time client on one red hat 7.2. Everything works fine. My jsp can access db2 database.
Now I am installing the same thing into another box, red hat 7.2, tomcat4 and db2 run time client.
I can write a java code to access the db2 database, and I can access db2 table in the command line. Jsp file is running fine. But when I use the jsp code which is working in another red hat box to access the db2 database, it can not go through and it stops in "Class.forName("COM.ibm.db2.jdbc.app.DB2Driver");" statement.
Does any body have any idea what could be the problem?
Regards,
David

hi,
could you please send me the jsp-db2 connection code.i am really distressed.i can't find it anywhere..must i install db2 run client. i have only db2 personal edition and the rest( tomcat,jre,jsdk,etc..)
Thx
(while tipping my e-mail in registration,i wrote it false)
My treu e-mail is [email protected]
please please send me this code....

Log4j and Tomcat-problem

Hi all,
First I tried to add some logging to my simple Java code with a xml configuration file and it worked fine.
Now I am trying to add logging to the whole java application in the same way which runs in tomcat and face with the foll problem.Tomcat is not able to find the configuration file.I tried to place the xml file in all feasible locations in tomcat and also tried to add in classpath but in vain.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`
Java Code(Which gets called in startup by another code)
Java Code
public class PublisherPoll implements Runnable {
public static Logger logger = Logger.getLoggerPublisherPoll.class);//***********log4j
public static Logger getLoggerInstance(){ //***********log4j
return logger;
static{
DOMConfigurator.configure("sudarson.xml");//**********its telling it cant find/open this xml file
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Error(during starting tomcat)
log4j:ERROR Could not open [sudarson.xml].
java.io.FileNotFoundException: sudarson.xml (The system cannot find the file sp
cified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:106)
at java.io.FileInputStream.<init>(FileInputStream.java:66)
at org.apache.log4j.xml.DOMConfigurator.doConfigure(DOMConfigurator.jav
:583)
at org.apache.log4j.xml.DOMConfigurator.configure(DOMConfigurator.java:
87)
at SerenaStartupServlet.init(SerenaStartupServlet.java:44)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper
java:1091)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:9
5)

DOMConfigurator.configure("sudarson.xml");//**********its telling it cant find/open this xml fileWhat does "sudarson.xml" mean to you? To me, it means a file name relative to the current directory. What do you think the current directory is when you're running this in Tomcat?
You need to research the APIs more fully, to figure out how to give it a resource name relative to the application's classpath, and put that file in said classpath.
If I were you, I would try to avoid explicitly calling DOMConfigurator.configure altogether, and just pass the appropriate Log4J system property to the commandline that starts up Tomcat. Let Log4J worry about loading the file, given the property. If I recall correctly, the system property name is "log4j.configuration", which defaults to "log4j.properties" if unspecified. Also, rather than have each application running in Tomcat have their own log4j configuration file name, I'd name them something more universal, like "log4j.xml" - then if you deploy multiple apps in Tomcat, they can all load their own log4j.xml file, as long as (again) you corrected the "log4j.configuration" system property.

Jsp and tomcat 4.0

Hi every body
please we want your help immediately, we want to run java file
and jsp files togather using tomcat4.0.

For a start u can keep the jsp's in the jsp folder
<webapps\examples\jsp> folder of the tomcat.As for java files
(can you specify what type) if they are java beans u have to
keep them in <WEB-INF\classes> directory.
hope this helps.
-Harsh

JSP and tomcat

hi
When i include a bean in jsp page, is it necessary that the bean be included in a package. can we include a bean which is not included in a package.
why because when i include a bean in a package it works fine. but when dont include it in a package i get error. i use tomcat 5.0 as my container.
why is this. should the bean be included in package in case of tomcat.
any suggestion do reply

You are absolutely correct. All your java classes should be in packages.
I actually think its a java limitation introduced in Java 1.4 - they no longer allow access to the unnamed package.
For full details check out: http://developer.java.sun.com/developer/bugParade/bugs/4361575.html
My suggestion: include all your beans in packages. Its not that hard is it?
Cheers,
evnafets

JSP and Tomcat Problem

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