Tomcat 4.1.27, 4,1.29, 4.1.30, 5.0.12 and 5.0.19

i programmed in jsp/tomcat for quite long time.
i write a simple testing servlet - 1 html, 1 servlet (simplest code i could come up with) , just dump it under webapps folder for testing purpose. (server.xml is not changed)
folder
- web-inf
- classes
- lib
- web.xml
- jsp
- src
-index.html
with window xp pro & tomcat 5.0.19 combination, jsp is working, servlet is not.
i (20* double) checked the code, web.xml, java_home, j2ee_home, catalina_home, everything i could think, all is correct.
however, same stuff working perfectly under window xp home & tomcat 5.0.12 combination
not working under window xp pro & tomcat 5.0.19
not working under window xp pro & tomcat 5.0.12
not working under window xp pro & tomcat 4.1.30
not working under window 2000 & tomcat 4.1.29
not working under window 2000 & tomcat 4.1.27
any suggestion will be helpful
thx

with window xp pro & tomcat 5.0.19 combination, jsp is
working, servlet is not.
not working under window xp pro & tomcat 5.0.19What is your "not working" mean? Nothing response or Error message do you get?
I have been using with Win XP pro and Tomcat 5.0.18 combination. It is alright. No problem with servlet.
It works.
First, you have to add new context for your servlet or JSP host in Tomcat administration. And then, you have to add <servlet></servlet> and <servlet-mapping></servlet-mapping> in web.xml file.
Have you done this before? I think you should check again. Your servlet class file must be under respective context "classes" folder.
Maybe your problem.

Similar Messages

Problem with JNI and Tomcat (and threads???)

Howdy,
Here is the issue - I would like some help on HOW to debug and fix this problem:
2 test use cases -
1)
a)User goes to Login.jsp, enters user and password
b) User submits to LoginServlet
c) login calls JNI code that connects to a powerbuilder(Yes I know this is ugly) PBNI code module (this is a .dll) that authenticates the user with the database
d) the servlet then redirects to another .jsp page
e) user then submits to LogoutServlet - also a JNI call to a powerbuilder PBNI code module
f) REPEAT STEPS a-e over a few times (inconsistent) and then the call to the JNI code hangs
2)
a) users does NOT goto Login.jsp, but rather calls LoginServlet and passes the userid and password as GET parms
b) user does NOT get redirected to a page (redirect code commented out)
c) user calls LogoutServlet
d) repeat steps a-c at will and no failure, no hanging
The only difference is that in case 1 (with JSP), there is a redirect and it afffected the JNI call by haniging inside JNI code.
In case 2 (without JSP) there is still a JNI call, but it does not hang. In addition, when it hangs and I stop Tomcat, the logs show cleanup entries that say:
Oct 19, 2004 9:17:09 AM org.apache.catalina.core.StandardWrapper unload
INFO: Waiting for 1 instance(s) to be deallocated
Oct 19, 2004 9:17:10 AM org.apache.catalina.core.StandardWrapper unload
INFO: Waiting for 1 instance(s) to be deallocated
Oct 19, 2004 9:17:11 AM org.apache.catalina.core.StandardWrapper unload
INFO: Waiting for 1 instance(s) to be deallocated
Is this a threading issue in Tomcat???
On would assume that the JNI code is not cleaning up after itself, but I don't believe this is the case,
and even if it was, why would I get the tomcat log cleanup entries above???
What do those cleanup entries imply about the state of Tomcat????

hi ,
I met the same problem this morning, and searched the www.google.com in order to solve it, as a result, your article was shown on my screen. :)
Till now I have read some technical information and solved my problems. Maybe the solution be useful to you:
==============================
error message : (Environment : Tomcat 5, Windows 2003, Mysql5)
2006-3-29 11:53:48 org.apache.catalina.core.StandardWrapper unload
message: Waiting for 2 instance(s) to be deallocated
==============================
cause: the number of connection to database exceeded.another word,too many connections.
==============================
solution: close the connection when it becomes useless for your program. :)
==============================
ps. Sorry for my weak English . hehe ....

How to protect an application running on Apache Tomcat app server with OAM 11gR2

Gurus,
We have an Apache Tomcat based application named "ABCD" here at client site that we want OAM 11gR2 PS1 to integrate with for SSO purposes. I have successfully configured OHS to reverse proxy requests to Apache Tomcat server whenever somebody tries to access the application URL but still, I am getting the application login page once I have successfully authenticated on OAM SSO login page. The Tomcat based application is authenticating users against a "UserDatabase realm".
I know in terms of weblogic application, there is an OAM identity asserter provider which then populates the User Principal for the java environment with the authenticated OAM user. But there is no such OAM identity provider for Tomcat.
So my question is, is there an provider (or Tomcat equivalent) which will entrust authentication to a header, that could be used to populate the Java User Principal from the OAM_REMOTE_USER header? Is the weblogic equivalent of authentication providers present in tomcat as well? Are those called valves?
Please advise to the earliest.
Thanks !!

Aakash,
I did follow the 4 steps that you mentioned to me. Out of the 4 that you had mentioned, I already had the webgate in place on OHS server and I was already passing the remote_user http header in oam policy as action.
As part of Step #2: Install mod_jk plugin on OHS server that you mentioned
1.) I downloaded the tomcat connector - tomcat-connectors-1.2.37-src
2.) I had to run ./configure,make, make install on my OHS server which runs on RHEL 6. It created the mod_jk.so file. I pasted it in the needed folder.
3.) I then created the httpd.conf file and workers.properties file as said in the connector docs.
4.) Restarted OHS.
As part of Step #3: Configure tomcat's ajp connector that you mentioned and I went through all the links pasted below but didn't find actually what needs to be in place to configure tomcat's ajp connector. I do see in the server.xml of tomcat app server that the ajp 1.3 protocol is supported:
http://tomcat.apache.org/tomcat-4.0-doc/config/ajp.html
http://tomcat.apache.org/tomcat-3.3-doc/mod_jk-howto.html#s8
http://tomcat.apache.org/tomcat-7.0-doc/config/ajp.html
http://www.mulesoft.com/understanding-tomcat-connectors

    <Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />

    <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
Do we need to disable the HTTP protocol in Tomcat and keep only AJP connector enabled? If yes, how to do that?
I am trying to connect to the application from OHS server like so I am using the http protocal right? How should I use the ajp protocol to connect to tomcat application?
http://ohs-host:ohs-port/abcd
Thanks !!!!!

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

Problem launching a jsp page with eclipse and tomcat

Hi,
I have just started using eclipse and tomcat for creating dynamic web pages. I tried to launch a jsp page after starting the tomcat server with the URL: http://locahost:8080/HelloWorld/, an error page was displayed as below:
HTTP Status 404 -/
type Status report
message /_
description The requested resource (-) is not available
Apache Tomcat/5.5.17
I didn't get any error at the console and when i just typed http://localhost, a pop up menu saying that the connection was refused when attempting to contact localhost.
I'm not sure what is the problem here. Could it be the permssion to the localhost is not granted by the system as the eclipse IDE is running using linux?
Hope someone can help.
Thanks.

http://www-128.ibm.com/developerworks/library/os-ectom/

JNI and Tomcat running on Linux

Hi all!
I have a small problem with calling a native library from my Tomcat running on a linux.
The code is simple enough
System.loadLibrary(myLibrary);I know that when libmyLibrary.so isn't in the java.library.path I get an error at this line. When it is in the path it goes past this line with out problems but on the next line
myFunction(); that is a function within myLibrary i get something like
java.lang.UnsatisfiedLinkError: myFunction()The thing is. This exact code when either executed in a standalone java application or from a Tomcat running on windows works with out problem. Tomcat on linux doesn't.
myLibrary uses other libraries on a different path and my guess is that tomcat for some reason won't allow access to those. The security manager however doesn't give me any errors, nor does tomcat itself other than the UnsatisfiedLinkError.
Anyone running Tomcat on linux and using native libraries or perhaps just knows alot about this?
Please help. Thanks!

Are you sure you are not running into a class loader issue? Does this occur the very first LoadLibrary call or after the first successfull call?
It could be that your JNI or bridge has already been loaded by another class loader in the tomcat class loader hierarchy and this would result in the UnsatisfiedLinkError.
Check out: http://www.onjava.com/pub/a/onjava/2004/06/30/classloader2.html

Connection Problem with Oracle and Tomcat.

I was able to enter Oracle using scott/tiger when I did not connect Tomcat.But when I connect tomcat I am unable to log onto Oracle.
When I logged to the database then I tried to start the Tomcat but it gave an exception.So I went to the task manager and ended the running processes like isqlplus.exe, oracle.exe, tomcat.exe, apache.exe.When I ended all the processes except oracle.exe, tomcat gave an exception. But when I ended oracle.exe Tomcat started working but Oracle stopped working. I don't know what the problem is.
Can anyone help me out?
Thanks,
Sravanthi.

> Can anyone help me out?
Yeah sure. Is there a SQL or PL/SQL related question in there.. somewhere.. hiding away?
After all, you do realise that the name of this forum is SQL and PL/SQL and that it deals with the SQL and PL/SQL languages in the Oracle server.. right?

Netware 6.0 SP5 Apache/Tomcat

I am setting up a New install Netware 6.0 server and have netware all patched up with sp5, & BM 3.7 patched up. This server will not be located in my office so I wanted to try to get the web app side up to date. I want to use Imanager to remotely check the health etc... I know this is an older version of Netware but this is a temporary replacement server and we should only be using this server for a year or 18 months max and we will no longer have a need for it. I say all that to ask how to upgrade Apache & Tomcat so I manager will work. I have EDIR 8.7.3 and the Novell JVM is at 1.4.2.04. The additional requirements for Imanager 2.01 are Tomcat 3.3, Tomcat 4 and Apache 1.3. Currently the server has Tomcat 3.3 installed and Apache 1.03. I can find a TID (10071533) on upgrading Tomcat 3.3 to Tomcat 4 on Netware 6.0 but cannot find the install file "Tomcat4.04b2", or any other variant. So do I need to get a newer version or what? I also need to update the Apache and cannot seem to find the correct files for that either. Any help would be greatly appreciated.

On 05/03/2009 14:56, jpeteet wrote:
> So there is nothing "special" I need to do for it to work on Novell
> other than download it and do its setup? Thank you.
Certainly with Apache it's a case of extracting the NLMs from the
archive and then copying over the old ones.
Personally I
* download the update
* extract to a directory on my local machine
* rename the configuration files in the local copy to prevent actual
configuration files on server being overwritten
* make a copy of sys:\apache or sys:\apache2 (depending on which I'm
updating)
* copy the local copy over to the server, overwriting existing files
(remember we've just renamed the config files)
* restart Apache
Hope this helps.
Simon
Do you work with Novell technologies within an academic environment?
Your campus may benefit from joining the Novell Technology Transfer
Partners (TTP) organisation. See www.novell.com/ttp for more info.

ERROR attempting to call HttpSession.invalidate () in TOMCAT 5.5.9

Can someone help me with this TOMCAT issue:-
I am attempting to implement a logout method that will invalidate the current session and redirect to the login page (based on SRLogout demo eg).
The code works fine in JDeveloper Embedded OC4J Server, but when i deploy the application to Tomcat 5.5.9 it throws an exception that the Session has already been invalidated.
I also notice that When i print the session object in JDev it is: 'HTTP Session ac104af6231ccf2bd0e9a39148c5adc1ea2714432a9e' but in Tomcat it is : 'org.apache.catalina.session.StandardSessionFacade@bfb545'
See the method below and exception below :
public String logoutButton_action() throws IOException{
ExternalContext ectx = FacesContext.getCurrentInstance().getExternalContex();
HttpServletResponse response = (HttpServletResponse)ectx.getResponse();
HttpSession session = (HttpSession)ectx.getSession(false);
session.invalidate();
response.sendRedirect("Login.jspx");
return null;
Exception
[2006-07-18 11:31:01] [ERROR] [http-8080-Processor23] (com.sun.faces.lifecycle.InvokeApplicationPhase:80) - #{backing_app_SRLogout.logoutCommandButton1_action}: javax.faces.el.EvaluationException: java.lang.IllegalStateException: getAttribute: Session already invalidated
javax.faces.FacesException: #{backing_app_SRLogout.logoutCommandButton1_action}: javax.faces.el.EvaluationException: java.lang.IllegalStateException: getAttribute: Session already invalidated
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:78)
     at oracle.adf.view.faces.component.UIXCommand.broadcast(UIXCommand.java:211)
     at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
     at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:381)
     at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:75)
...

After a lot of investigation, code review and tests, I finally managed to understand what's going on with this problem.
The following stack trace is the key:
java.lang.IllegalStateException: getAttribute: Session already invalidated
     org.apache.catalina.session.StandardSession.getAttribute(StandardSession.java:1077)
     org.apache.catalina.session.StandardSessionFacade.getAttribute(StandardSessionFacade.java:110)
     oracle.adf.share.http.HttpUtil.getAttribute(HttpUtil.java:98)
     oracle.adf.share.http.HttpSessionScopeAdapter.get(HttpSessionScopeAdapter.java:240)
     oracle.adf.share.statemanager.StateManagerScopeAdapter.<init>(StateManagerScopeAdapter.java:88)
     oracle.adf.share.http.HttpStateManagerScopeAdapter.<init>(HttpStateManagerScopeAdapter.java:51)
     oracle.adf.share.http.ServletADFContext.getStateManager(ServletADFContext.java:254)
     oracle.adf.share.statemanager.StateManagerScopeAdapter$ADFScopeListenerImpl.scopeInvalidated(StateManagerScopeAdapter.java:251)
     oracle.adf.share.ADFScopeHelper.fireScopeInvalidated(ADFScopeHelper.java:53)
     oracle.adf.share.http.HttpSessionScopeAdapter.invalidate(HttpSessionScopeAdapter.java:265)
     oracle.adf.share.http.HttpSessionScopeAdapter.valueUnbound(HttpSessionScopeAdapter.java:324)
     org.apache.catalina.session.StandardSession.removeAttributeInternal(StandardSession.java:1686)
     org.apache.catalina.session.StandardSession.expire(StandardSession.java:801)
     org.apache.catalina.session.StandardSession.expire(StandardSession.java:644)
     org.apache.catalina.session.StandardSession.invalidate(StandardSession.java:1158)
     org.apache.catalina.session.StandardSessionFacade.invalidate(StandardSessionFacade.java:150)
oracle.adf.share.http.HttpSessionScopeAdapter.valueUnbound(HttpSessionScopeAdapter.java:324)*
org.apache.catalina.session.StandardSession.removeAttributeInternal(StandardSession.java:1686)*
org.apache.catalina.session.StandardSession.expire(StandardSession.java:801)*
catalina first invalidate the session by setting expire property to true
then it removes all attributes by calling removeAttributeInternal()
which calls whatever attributes valueUnbound method...
in this case, oracle's HttpSessionScopeAdapter try to get an attribute on the session
org.apache.catalina.session.StandardSessionFacade.getAttribute(StandardSessionFacade.java:110)
oracle.adf.share.http.HttpUtil.getAttribute(HttpUtil.java:98)
catalina does not permit accessing the attributes when it is invalidated... so you get the mighty java.lang.IllegalStateException: getAttribute: Session already invalidated exception...
the solution to this problem is to remove oracle attributes BEFORE invalidating the session. This should work in any appserver implementation.
For example, in our case, the oracle attribute was a scope attribute (HttpStateManagerScopeAdapter in our stack trace)... We found those attributes using the
HttpSession.getAttributeNames() method, and removed them manually before invalidating the session.
session.removeAttribute("ORA_adf_sessionScope");
session.removeAttribute("__adf_session_scope__");
// remove private attributes
// and invalidate the session
session.invalidate();
I think that it makes sense that catalina invalidates the session before any call to the listeners, because any problem in those attributes could mean an improperly invalidated session...
Cheers.

Has anyone run the connection pooling for mysql & tomcat successfully?

I'm trying to set up connection pooling. I'm following the how-to page at
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html
But when i test the DBTest/test.jsp file, tomcat displays an error =
could not load jdbc driver class 'null'(msdos)
i have placed all the required .jar files in the tomcat lib.
below is the cofiguration i did to the server.xml file



<Server port="8005" shutdown="SHUTDOWN" debug="0">

<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"
debug="0"/>
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
debug="0"/>

<GlobalNamingResources>

<Environment name="simpleValue" type="java.lang.Integer" value="30"/>

<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved">
</Resource>
<ResourceParams name="UserDatabase">
<parameter>
<name>factory</name>
<value>org.apache.catalina.users.MemoryUserDatabaseFactory</value>
</parameter>
<parameter>
<name>pathname</name>
<value>conf/tomcat-users.xml</value>
</parameter>
</ResourceParams>
</GlobalNamingResources>


<Service name="Tomcat-Standalone">


<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="8080" minProcessors="5" maxProcessors="75"
enableLookups="true" redirectPort="8443"
acceptCount="100" debug="0" connectionTimeout="20000"
useURIValidationHack="false" disableUploadTimeout="true" />




<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="8009" minProcessors="5" maxProcessors="75"
enableLookups="true" redirectPort="8443"
acceptCount="10" debug="0" connectionTimeout="20000"
useURIValidationHack="false"
protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler"/>











<Engine name="Standalone" defaultHost="localhost" debug="0">



<Logger className="org.apache.catalina.logger.FileLogger"
prefix="catalina_log." suffix=".txt"
timestamp="true"/>


<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
debug="0" resourceName="UserDatabase"/>







<Host name="localhost" debug="0" appBase="webapps"
unpackWARs="true" autoDeploy="true">
<Context path="/my-jsp" docBase="c:\JSP-Files" debug="0"
privileged="true" reloadable="true" />
     <Context path="" docBase="c:\Inetpub\wwwroot" debug="0" privileged="true" />
<Context path="/sharon" docBase="C:\Tomcat 4.1\webapps\sharon" debug="0" privileged="true" />





<Logger className="org.apache.catalina.logger.FileLogger"
directory="logs" prefix="localhost_log." suffix=".txt"
     timestamp="true"/>




<Context path="/examples" docBase="examples" debug="0"
reloadable="true" crossContext="true">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="localhost_DBTest_log." suffix=".txt"
timestamp="true"/>
<Ejb name="ejb/EmplRecord" type="Entity"
home="com.wombat.empl.EmployeeRecordHome"
remote="com.wombat.empl.EmployeeRecord"/>



          
<Environment name="maxExemptions" type="java.lang.Integer"
value="15"/>
<Parameter name="context.param.name" value="context.param.value"
override="false"/>
<Resource name="jdbc/EmployeeAppDb" auth="SERVLET"
type="javax.sql.DataSource"/>
<Resource name="jdbc/TestDB"
     auth="Container"
     type="javax.sql.DataSource"/>
<ResourceParams name="jdbc/TestDB">
<parameter>
     <name>factory</name>
     <value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
     </parameter>
     
     <parameter>
     <name>maxActive</name>
     <value>100</value>
     </parameter>
     
     <parameter>
     <name>maxIdle</name>
     <value>30</value>
     </parameter>
     
     <parameter>
     <name>maxWait</name>
     <value>10000</value>
     </parameter>

<parameter>
<name>user</name>
<value>javauser</value>
</parameter>
<parameter>
<name>password</name>
<value>javadude</value>
</parameter>

<parameter>
<name>driverClassName</name>
<value>org.gjt.mm.mysql.Driver</value>
</parameter>

     <parameter>
     <name>url</name>
     <value>jdbc:mysql://localhost:3306/javatest?autoReconnect=true</value>
</parameter>
</ResourceParams>
<Resource name="mail/Session" auth="Container"
type="javax.mail.Session"/>
<ResourceParams name="mail/Session">
<parameter>
<name>mail.smtp.host</name>
<value>localhost</value>
</parameter>
</ResourceParams>
<ResourceLink name="linkToGlobalResource"
global="simpleValue"
type="java.lang.Integer"/>
</Context>
</Host>
</Engine>
</Service>



</Server>
Pleas4 help!!!

you have your driver jar in Tomcat\common\lib?
if so, check your classpath, it could be that.

Getting error message in tomcat server

Have a look at the following programs:
AuthenticationFilter_
import javax.servlet.*;
import java.io.*;
import java.sql.*;
public class AuthenticationFilter implements Filter
     ServletContext sc;
     Connection con;
public void init(FilterConfig f) throws ServletException
System.out.println(f.getFilterName() + "Filter Initialized");
String d = f.getInitParameter("driver");
String url = f.getInitParameter("url");
String user = f.getInitParameter("user");
String pwd = f.getInitParameter("password");
try
     Class.forName(d);
     con = DriverManager.getConnection(url,user,pwd);
     System.out.println("Connection Established");
catch (Exception e)
     e.printStackTrace();
sc = f.getServletContext();
public void doFilter(ServletRequest request,ServletResponse response,FilterChain chain)throws ServletException,IOException
Statement st = null;
ResultSet rs = null;
String user = request.getParameter("user");
String pwd = request.getParameter("password");
try
     st = con.createStatement();
     String sql = "SELECT * FROM OURUSERS WHERE usr = " + user + " and password = " + pwd + " ";
     rs = st.executeQuery(sql);
     if(rs.next())
          chain.doFilter(request,response);
     else
          sc.getRequestDispatcher("/error.html").forward(request,response);
catch (Exception e)
     e.printStackTrace();
finally
try
     if(rs!=null)
          rs.close();
     if(st!=null)
          st.close();
catch (Exception e)
     e.printStackTrace();
}//doFilter()
public void destroy()
try
     if(con!=null)
          con.close();
catch (Exception e)
     e.printStackTrace();
*2)_HitCounterFilter__
import javax.servlet.*;
import java.io.*;
public class HitCounterFilter implements Filter
     ServletContext sc;
     int count;
public void init(FilterConfig f)throws ServletException
System.out.println(f.getFilterName() + "Filter Initialized");
sc = f.getServletContext();
public void doFilter(ServletRequest request,ServletResponse response,FilterChain chain)throws ServletException,IOException
chain.doFilter(request,response);
count++;
sc.log("Number of times request came to LoginServlet is " + count);
public void destroy()
*3) LoginServlet*
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class LoginServlet extends HttpServlet
     public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException
response.setContentType("text/html");
PrintWriter pw = response.getWriter();
pw.println("<HTML> <BODY BGCOLOR=yellow>");
pw.println("<H1> WELCOME TO OUR WEBSITE</H1>");
pw.println("</BODY>");
pw.println("</HTML>");
pw.close();
web.xml
<web-app>
<filter>
<filter-name>authenticate</filter-name>
<filter-class>AuthenticationFilter</filter-class>
<init-param>
<param-name>driver</param-name>
<param-value>oracle.jdbc.driver.OracleDriver</param-value>
</init-param>
<init-param>
<param-name>url</param-name>
<param-value>jdbc:oracle:thin:@localhost:1521:orcl</param-value>
</init-param>
<init-param>
<param-name>user</param-name>
<param-value>scott</param-value>
</init-param>
<init-param>
<param-name>password</param-name>
<param-value>tiger</param-value>
</init-param>
</filter>
<filter>
<filter-name>hitcount</filter-name>
<filter-class>HitCounterFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>authenticate</filter-name>
<url-pattern>/nit</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>Login</servlet-name>
<servlet-class>LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Login</servlet-name>
<url-pattern>/nit</url-pattern>
</servlet-mapping>
</web-app>
Error_
java.sql.SQLException: ORA-00904: "SANDY": invalid identifier
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:189)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:242)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:554)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1478)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(TTC7Protocol.java:
677)
at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.jav
a:2371)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStateme
nt.java:2660)
at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:
777)
at AuthenticationFilter.doFilter(AuthenticationFilter.java:37)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:857)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ss(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:48
9)
at java.lang.Thread.run(Thread.java:619)
The above error message i am getting in Tomcat server,i am having Oracle 11g V1..My SQL prompt is open and i have a table named "ourusers"...Can anyone kindly gimme the solution for this problem+*
Edited by: sandy on Nov 9, 2010 8:59 AM

java.sql.SQLException: ORA-00904: "SANDY": invalid identifier
Looks like the sql you are submitting is invalid.
Print out a copy of the sql you are trying to run and you will probably get:
SELECT * FROM OURUSERS WHERE usr = Sandy and password = secretThat isn't valid sql. It is missing quotes around the values you are checking.
This is the corrected sql query:
SELECT * FROM OURUSERS WHERE usr = 'Sandy' and password = 'secret'so one solution would be:
String sql = "SELECT * FROM OURUSERS WHERE usr = '" + user + "' and password = '" + pwd + "' ";However that is not optimal. It exposes your code to sql injection attack.
The better way is to use a prepared statement:
String sql = "SELECT * FROM OURUSERS WHERE usr = ? and password =?";
st = con.prepareStatement(sql);
st.setString(1, user);
st.setString(2, password);
rs = st.executeQuery();cheers,
evnafets

BI Publisher and TomCat JDBC error

Hey Folks,
I have BI Pulbisher up and running in a cluster mode on a Solaris box with a shared folder such as (/u01/app/BI_Publisher/xmlp) as the file path in WEB-INF\xmlp-server-congfig.xml. All my reports and XMLP configuration folders are stored in that directory (ie. Admin, DemoFiles, Reports, Tools etc..). BI Publisher is up and running under the tomcat user id.
My OBIEE directory is contained in /opt/oracle/app/OracleBI....
Now when I deployed the xmlpserver.war file and configure my connections, everything was working properly.
Now I see the following exception being thrown in the tomcat logs. This error msgs are inserted to the logs every second and it will fill up the log file in a matter of hours which makes the BI Publisher go down.
I have to erase the logs and re-cycle the tomcat server and everything is fine again, but these msgs keep filling up the logs.
How can i solve this issue of "Cannot load JDBC driver class 'oracle.jdbc.OracleDriver'"?
Cannot load JDBC driver class 'oracle.jdbc.OracleDriver'
java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352)
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:164)
     at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:730)
     at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:518)
     at org.quartz.utils.PoolingConnectionProvider.getConnection(PoolingConnectionProvider.java:172)
     at org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:111)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:553)
     at org.quartz.impl.jdbcjobstore.JobStoreTX.doCheckin(JobStoreTX.java:1321)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.manage(JobStoreSupport.java:2338)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.run(JobStoreSupport.java:2369)
Cannot load JDBC driver class 'oracle.jdbc.OracleDriver'
java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352)
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:164)
     at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:730)
     at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:518)
     at org.quartz.utils.PoolingConnectionProvider.getConnection(PoolingConnectionProvider.java:172)
     at org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:111)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:553)
     at org.quartz.impl.jdbcjobstore.JobStoreTX.doCheckin(JobStoreTX.java:1321)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.manage(JobStoreSupport.java:2338)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.run(JobStoreSupport.java:2369)
Cannot load JDBC driver class 'oracle.jdbc.OracleDriver'
java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352)
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:164)
     at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:730)
     at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:518)
     at org.quartz.utils.PoolingConnectionProvider.getConnection(PoolingConnectionProvider.java:172)
     at org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:111)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:553)
     at org.quartz.impl.jdbcjobstore.JobStoreTX.doCheckin(JobStoreTX.java:1321)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.manage(JobStoreSupport.java:2338)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.run(JobStoreSupport.java:2369)
Cannot load JDBC driver class 'oracle.jdbc.OracleDriver'
java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352)
     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:164)
     at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:730)
     at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:518)
     at org.quartz.utils.PoolingConnectionProvider.getConnection(PoolingConnectionProvider.java:172)
     at org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:111)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:553)
     at org.quartz.impl.jdbcjobstore.JobStoreTX.doCheckin- ClusterManager: Error managing cluster: Failed to obtain DB connection from data source 'myDS': org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'oracle.jdbc.OracleDriver', cause: oracle.jdbc.OracleDriver
org.quartz.JobPersistenceException: Failed to obtain DB connection from data source 'myDS': org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'oracle.jdbc.OracleDriver', cause: oracle.jdbc.OracleDriver [See nested exception: org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'oracle.jdbc.OracleDriver', cause: oracle.jdbc.OracleDriver]
     at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:570)
     at org.quartz.impl.jdbcjobstore.JobStoreTX.doCheckin(JobStoreTX.java:1321)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.manage(JobStoreSupport.java:2338)
     at org.quartz.impl.jdbcjobstore.JobStoreSupport$ClusterManager.run(JobStoreSupport.java:2369)

setpath for the bijdbc.jarfor OBIEE and ojdbc.jar for Oracle DB file .
that should resolve this library not found error.

Tomcat 6 Calling a Java Servlet from a JSP Page

Below is a very simple JSP Page that calls a Java Servlet. The question is given Tomcat security constraints, is it possible to call a servlet from a JSP and get the correct output without getting an error message? If so, how would you code the web.xml file?
c:\apache-tomcat-6.0.18
Under conf
catalina
localhost
HelloWorldExample.xml is directly under localhost
The application would have this directory structure:
webapps
HelloWorldExample
hello.jsp is directly under HelloWorldExample
Under HelloWorldExample
src
WEB-INF
classes
Under classes
jservlets
HelloWorld.java is in src folder
HelloWorld.class is in jservlets folder
HelloWorldExample.xml
<Context path="/HelloWorldExample" docBase="HelloWorldExample" debug="0"
      reloadable="true" crossContext="true">
</Context>**************************
hello.jsp
<HTML>
<HEAD>
<TITLE>Hello</TITLE>
</HEAD>
<BODY>
<FONT SIZE="4">
<P>
Please enter your name:
<FORM
   METHOD="Post"
   ACTION="servlet/jservlets.HelloWorld">
<TABLE BORDER="3" CELLPADDING="1" WIDTH="100%" ALIGN="CENTER">
<TR>
    <TD><B>Name:</B></TD>
    <TD><INPUT TYPE="text" NAME="Name" VALUE="" SIZE="65"> </TD>
</TR>
</TABLE>
<P>
<INPUT TYPE="SUBMIT" VALUE="Submit">
</FORM>
</FONT>
</BODY>
</HTML>******************
HelloWorld.java
package jservlets;
import java.io.*;
import java.util.Date;
import java.util.*;
import java.text.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorld extends HttpServlet
   PrintWriter out;
   PrintWriter err;
   String strName;
public void displayMessage(HttpServletRequest request, HttpServletResponse response)
      throws Exception
         try
            if (!strName.equals("") && strName != null)
               out.println("Hello " + strName + "" + "<P>");
                out.println("Hello World" + "<P>");
            else
                out.println("Hello World" + "<P>");
        catch (Exception e)
            out.println("Exception: Could not display message." + "<P>");
            err.println (e.getMessage () ) ;
            out.println("<P>");
public void doPost(HttpServletRequest request, HttpServletResponse response)
           throws ServletException, IOException
      try
           response.setContentType("text/html");
           out = response.getWriter();
           err = response.getWriter();
           strName = request.getParameter("Name").trim();
           out.println("<html><head><title>");
          out.println("</title></head><body>");
           out.println("<FORM");
           out.println("METHOD=POST");
           out.println("ACTION=http://localhost:8080/HelloWorldExample/hello.jsp>");
         out.println("<TABLE ALIGN='RIGHT'>");
         out.println("<TR>");
         out.println("<TD>");
           out.println("<INPUT TYPE=\"SUBMIT\" VALUE=\"Hello World Page\";>");
           out.println("</INPUT>");
          out.println("</TD>");
         out.println("</TR>");
         out.println("</TABLE>");
         out.println("</FORM>");
         out.println("<BR CLEAR='all'>");
           out.println("<P>");
           displayMessage(request, response);
           out.close();
         out.println("</body></html>");
       catch(Throwable e)
          e.printStackTrace();
      public void doGet(HttpServletRequest request, HttpServletResponse response)
         throws ServletException, IOException
         doPost(request, response);
web.xml
<servlet>
      <servlet-name>HelloWorld</servlet-name>
      <servlet-class>jservlets.HelloWorld</servlet-class>
</servlet>
<servlet-mapping>
        <servlet-name>HelloWorld</servlet-name>
        <url-pattern>/servlet/HelloWorld</url-pattern>
</servlet-mapping>      ******************************
HelloWorld.java can be compiled by using javac.
Once compiled, HelloWorld.class would be moved to the jservlets folder.
FYI, coding the above url-pattern results in:
HTTP Status 404
The requested resource (/HelloWorldExample/servlet/jservlets.HelloWorld) is not available
The following url-pattern in the web.xml file permits the servlet to be executed but results in a null pointer exception:
<servlet-mapping>
        <servlet-name>HelloWorld</servlet-name>
        <url-pattern>/ </url-pattern>
</servlet-mapping>      **************************************************
Robin

This problem was resolved.
In hello.jsp
ACTION="servlet/jservlets.HelloWorld">
was replaced with
ACTION="servlet/HelloWorld">
Robin

Error on startup of Tomcat

I am attempting to use the Tomcat servlet engine with Apache on Win 98. The versions I am using are Apache/1.3.20 and Tomcat 4.0.1. I have unzipped the tomcat binary to C:\jakarta-tomcat-4.0.1 and set CATALINA_HOME to C:\jakarta-tomcat-4.0.1.
I am running the same versions of Apache and Tomcat at work on NT 4.0 and had no problems. But on my Win 98 machine when I try to start Tomcat with "startup" I am getting the following (at least I think it is the equivalent on startup with what I'm getting on shutdown--the startup console window is closing before I can capture the message):
C:\jakarta-tomcat-4.0.1\bin>shutdown
Using CATALINA_BASE: C:\jakarta-tomcat-4.0.1
Using CATALINA_HOME: C:\jakarta-tomcat-4.0.1
Using CLASSPATH: C:\jakarta-tomcat-4.0.1\bin\bootstrap.jar;C:\jdk1.3\l
ls.jar;C:\jdk1.3\jre\lib\ext\lib\jcert.jar;C:\jdk1.3\jre\lib\ext\lib\jnet.
\jdk1.3\jre\lib\ext\lib\jsse.jar
Using JAVA_HOME: C:\jdk1.3
ERROR reading C:\jakarta-tomcat-4.0.1\conf\server.xml
At http://xml.org/sax/features/raw-names
Catalina.stop: org.xml.sax.SAXNotRecognizedException: http://xml.org/sax/f
s/raw-names
org.xml.sax.SAXNotRecognizedException: http://xml.org/sax/features/raw-nam
at org.apache.xerces.framework.XMLParser.setFeature(XMLParser.java
at org.apache.xerces.parsers.SAXParser.setFeature(SAXParser.java:5
at org.xml.sax.helpers.XMLReaderAdapter.setupXMLReader(XMLReaderAd
java:204)
at org.xml.sax.helpers.XMLReaderAdapter.parse(XMLReaderAdapter.jav
at javax.xml.parsers.SAXParser.parse(SAXParser.java:345)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:290)
at org.apache.catalina.util.xml.XmlMapper.readXml(XmlMapper.java:2
at org.apache.catalina.startup.Catalina.stop(Catalina.java:817)
at org.apache.catalina.startup.Catalina.execute(Catalina.java:683)
at org.apache.catalina.startup.Catalina.process(Catalina.java:179)
at java.lang.reflect.Method.invoke(Native Method)
Thanks in advance for your assistance.
Roy

Very simple. On the start up Jakarta is looking for server.xml file. Apparently, it can not read it.
Check all your env. variables. Make sure you have
JAVA_HOME, TOMCAT_HOME set correctly. If TOMCAT_HOME is not set up correctly, it would not be able to locate server.xml file.

Problem in compiling servlet class - using Tomcat

Hi,
I have a servlet pgm that I'm trying to compile.I using Tomcat application server.I have my servlet class in D:\servlet_wrk\project1\src
and my deployment descriptor in D:\servlet_wrk\project1\etc
my CLASSPATH var is set to C:\Sun\AppServer\jdk\bin
and
my PATH var is set to C:\Sun\AppServer\bin.
When I compile my servlet class Ch1Servlet.java in the command line from the directory
D:\servlet_wrk\project1 using the command
javac -classpath D:\applications\tomcat-5.5.12\common\lib\servlet-api.jar -d classes src/Ch1Servlet.java,
it says error:cannot read: src/Ch1Servlet.java
Can somebody help me to solve this problem and help me to compile my servlet class.
Thanks.

Thanks...as u said I tried putting dir & found that
my file was saved as Ch1Servlet.java.txt instead for
Ch1Servlet.java......So that was a problem.Now I'm
able to compile.Oh, yeah. Notepad will do that to you. I think when you save in Notepad if you put quotes around the name "Whatever.java" then it won't add the .txt.
But on compiling I'm getting the following error
package java.servlet.* does not exist
package java.servlet.http.* does not exist
package java.io.* does not exist
Do u the reason for this??? The servlet stuff is java[b]x.servlet. For the io stuff, I don't know, I'd have to see your code. Either you have a typo or a corrupt installation.

Tomcat 4.1.27, 4,1.29, 4.1.30, 5.0.12 and 5.0.19

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