Tomcat servlet and BC provider

Hi, I'm developing a servlet which does some cryptography things, I use the BC provider, and it is okay when I developing some application, however, it does not work with the servlet, when I tried to inin a cipher, with BC provider, it doesn't work, does anyone know anything about this?
Thanks for your time,
lee

Like most things J2EE, this is classpath related. A servlet container does not use the same classloader, or manner in which classloaders are arranged in a hierarchy.
Without knowing your exact error, the simplest mechanism is to install BC in the $JAVA_HOME/lib/ext directory. If you're using Windows, make sure you get the correct $JAVA_HOME as with Windows there tends to be a few installed by the installer.
Also, modify the $JAVA_HOME/lib/security/java.security and add the BC provider as #6 (after all the Sun ones)
That works for me. ;-)
Cheers,
-- jon

Similar Messages

JSP, Servlet, and Java Classes location in Tomcat

In tomcat, I want to know JSP files, Servlets, and Java classes
should put in different locations:
I put web.xml in the following:
C:\jakarta-tomcat-4.1.30\webapps\proj1\WEB-INF
I put all JSP files in the following:
C:\jakarta-tomcat-4.1.30\webapps\proj1
I put all servlet files in the following:
C:\jakarta-tomcat-4.1.30\webapps\proj1\WEB-INF\classes
I put all Java classes in the following with package proj1:
C:\jakarta-tomcat-4.1.30\webapps\proj1\WEB-INF\classes\proj1
When I execute JSP files, it has HTTP error 404, file not found.
The content of web.xml is:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>proj1</display-name>
<description>
proj1
</description>
<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
Please advise. thanks!!!

<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>Where's the servlet definition that maps to "invoker"?

URGENT.........File Upload using Servlets and jsp

I am a new servlet programmer.......
iam using tomcat server......
can any one pls help in writing code for file upload using servlets and jsp without using multipart class or any other class like that....
Please URGENT..

Slow down! "Urgent" is from your perspective alone. I, myself, am not troubled or worried in the least.
hi ugniss
thanks for ur reply....sorry i was not
y i was not asked not to use multipart class or any
other class like that...is there any other
possibility to do file uploading from jsp to
servlet...
Just as an aside, a JSP is a Servlet. But even if I move beyond that, the question does not make sense. If you want a "JSP to upload to a Servlet", then simply do so in memory. You are still (likely) within the same scope of a given request. However, if instead you are referring to a JSP that is displayed on a browser, then really you are talking about HTML, which is what the browser will receive. And since you are now talking about a browser, your only real, viable option is a multi-part file upload. So, it is either server or it is browser. And either way, the question leads to very established options, as outlined above.
the main concept is.. in the browser the user selects
a particular file and clicks the button upload..after
clicking upload the jsp should sent the file to the
servlet in streams...there the servlet gets in and
saves in a server location........this is wat i hav
to do...
Okay. So, after reading my previous (redundant) paragraph, we have arrived at the crux of the issue. You have a JSP that will be output as HTML to a client (browser) which you want to upload content to your server (handled by a Servlet). So, you are now stuck again with multi-part. The requirement to not use multi-part is non-sensical. You can overcome it, say, if you write your own applet or standalone Swing client. However, if your users are invoking this functionality from a browser, you are limited by the options that W3C has provided you. Use multi-part.
is there aby possibilty to do this.....can any one
pls help....Take the advice to download and review Jakarta Commons FileUpload. Inform your management that their requirement makes no technical sense. Research on your own. There are dozens of examples (and tutorials) on file upload using multi-part. Embrace it. Live it. Love it.
- Saish

Help needed on Servlets and JSTL

Hi
I am using tomcat 5.5 and JDK 1.5. What are the softwares I have to download for compiling servlets and creating JSTL ?. Help needed.
Thanks
IndyaRaja

I tried compling servlet, but it is raising error
that coul not find package javax.servletWhat I did not mention... you need to add those JARs in the Classpath explicitly. You will find them in %TOMCAT_HOME%\common\lib. You atleast need to add servlet-api.jar to your Classpath. :)

How can I have a default servlet and an index.html?

Hi,
I writing a small webapp to test/understand the 2.2 Servlet Spec. I am deploying this as a WAR to Orion, Tomcat and Silverstream.
The app's name is: "myapp"
My application has an index.html, which is listed as the sole welcome-file in the welcome-file-list element in the app's web.xml.
The interesting thing is that, after adding a default Servlet (<url-pattern>/</url-pattern>), I can no longer access the app's index.html either implicitly or explicitly:
1. Implicit:
- http://localhost/myapp
- http://localhost/myapp/
2. Explicit:
- http://localhost/myapp/index.html
- http://localhost/myapp/index.html/
All of these invoke the Default Servlet in all 3 app servers.
Question: How can I have both a default Servlet and an index page?
Thanks in advance.
Miles

you can define it in the web.xml file
look at the dtd, element "welcome-file-list"

Mail.jar is locked when sending a mail using servlet and not releasing

Hi everybody,
The mail.jar is locked in tomcat while sending the first message and not released until the tomcat get restarts.
the problem is not recorded in any logs.
1. Please create a servlet that sends mail
2. Send a mail to any mailid
3. then after the mail is send please try to delete the mail.jar or please deploy the same servlet again with some small changes (for redeploying take place only a few changes is there - please change any strings a little bit)
then try to send mail using this servlet will not send mail becoause it will not redployed correctely.
when i removed Transport.send(msg); from code it works fine. but ??
please help me to recover from this issue. i don't want to turn on tomcat antiJarlocking and antiresourcelocking to true, becaouse this craete many other problems.
please help me to recover from this issue.
Thanks,
Prasad.N

hi friend
I am using advanced version of jdk. i i have used many other jar files like mysqlconnector, logging, commonhttpclient, etc.... the only problem is with mail.jar. that locks are released when its use completed, but the lock holds until tomcat shutdown in mail.jar.
what may be the reason?
Thanks,
Prasad.N

How to create tomcat user and directory structure

I am new in using tomcat, recently installed tomcat 5.0 but don't know how to use it and how to view sample jsp pages. I tried tomcat_users.xml file to create user, but anybody knows the different roles used there? if yes, olease provide.
Thanking you,
Waiting for reply.
By,
Jitendrarc

You dont need to use a user account to access the example pages.
You need to start the server using startup.bat / sh or the tomcat monitor and access http://localhost
When you connect to localhost you will see a link to the examples.
Also at the top of the page you will se a link to Tomcat Administration, you can use this to add new users, instead of editing the xml by hand. I cannot remember the default password, Im sure its in the documentation (link in centre of page).
For an open source project the documentation and tutorials are pretty good, would suggest you always start with this inforamation before looking for answers in forums.

Reading a properties file in a servlet and passing its contents to a JSP pa

Hi all,
I'm totally new to Servlet pgmg n JSP. Please can ne1 tell how to read a simple properties file (in a servlet) and pass its contents to a JSP page.Actually the reason is to fill a combo box in a JSP page with the contents of a properties file.If calling a servlet for the same is d best way to do that, plz can ne1 tell me :
1> whether to override the doPost method in the servlet in which to read d file using FileInputStream
2> Putting the contents in an array and then how to pass this array to the JSP page.
Thanks,
deepthy.

I'm using a properties file to let my web application know what the name of the database is. I'm using an abstract class GeneralDao which will be extended by all the DAO's (Data Access Objects or java classes containing SQL statements).
Here's the code :
protected Connection getDatabaseConnection()
          throws Melding
     Connection dbconn = null;
     ResourceBundle resBundle;
     try
     Class.forName("com.mysql.jdbc.Driver").newInstance();
     resBundle = ResourceBundle.getBundle("gcoConfig");
     String dbConnectie = resBundle.getString("databaseconnection");
     gcoLogger.debug("lezen databaseconnection in resourceBundle " );
     dbconn = DriverManager.getConnection(dbConnectie);
     } catch (InstantiationException exc)The ResourceBundle is used to read the properties file, named gcoConfig.properties.
With the getString() command I read the content of the string named databaseconnection.
The gcoConfig.properties file is placed inside the folder C:\Program Files\Apache Software Foundation\Tomcat 5.0\webapps\gco\WEB-INF\classes
The GeneralDao is placed in the folder C:\Program Files\Apache Software Foundation\Tomcat 5.0\webapps\gco\WEB-INF\classes\org\gertcuppens\cluifDao.
So this class is placed some folder below the WEB-INF\classes folder of gcoConfig.properties.
And the content of the properties file is just one line :
databaseconnection=jdbc:mysql://localhost/cluif
If you want to let the JSP know what's inside the properties file, wrap the content in a Javabean, put it in the request or even the session and pass the control to the JSP.

How to send array of bytes to a servlet and store it in a file

Hi,
How to send array of bytes to a servlet and store it in a file.
I am new to Servlets. if possible for any one, please provide the code.
Thanks,
cmbl

Through HTTP this is only possible with a POST request of which the encoding type is set to multipart/form-data. You can use Apache Commons FileUpload to parse such a multipart form data request into useable elements. From the other side (the client) you can use a HTML <input type="file"> element or a Java class with Apache Commons PostMethod API.
You may find this article useful: http://balusc.blogspot.com/2007/11/multipartfilter.html

Questions about Java Servlets and JSP

Hi,
I'm a confident Java Programmer (and really enjoy using this language) but am very new to Java servlets and Java Server Pages.
I have previously worked with Perl on my web projects (simple 'league' style voting pages). I read in my 'Core Java' book that I should no longer use perl or even cgi.
I need to know more about Java servlets and Java Server Pages so I can make the switch to a 'real' programming language.
I have a few questions:
How should I start to learn JS and JSP?
How applicable will the java knowlegdge I have already be?
Are JSP common on the world wide web?
What tools do I need to start? (I currently develop in JBuilder and have Java 1.4.1 Standard Edition)
Is it likey my web host (and others) will support JSP?
Thank-you very much for helping a novice get started,
Regards,
Paul

Hi, Steve ...has to be frustrating! But do not despair.
Let's suppose the servlet it's named MyServlet on package org.servlets
WEB-INF should look:
WEB-INF
classes
org
servlets
MyServlet.class
web.xml
web.xml file should have this two declarations:
<web-app>
<servlet>
    <servlet-name>MyServlet</servlet-name>
    <servlet-class>org.servlets.MyServlet</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>MyServlet</servlet-name>
    <url-pattern>/MyServlet</url-pattern>
</servlet-mapping>

</web-app>Now, once the container starts (Tomcat?), you should be able to see that servlet in:
http://localhost:8080/[my-context/]MyServletAnd what my-context is? The web application context. This string should be empty if your're deploying to the root context, otherwise should the context name. In Tomcat, deploying to root context defaults to using webapps/ROOT.
Sorry for my English, but I felt the need to answer your request. I hope it helps despite my writing.

Serving Java Servlets and JSP

I have a small hosting company and was wondering what is required to be installed on a Win2k Server to host Java Servlets and JSP pages for a client of mine?

Ah, so you just want to add a servlet engine to IIS5?
Tomcat can be used as a plugin for IIS. Check out the Tomcat FAQs - somewhere in there you should find one relating to using Tomcat as an IIS plugin. They're far more comprehensive than I could ever hope to be on the matter!

Compiling the java file related to Servlet and Core java files in heirarchy

I am working in Jakarta-Tomcat 4.0.4 with j2sdk1.4.1_01 and i have put all servlet files in package "com.java.servlet"
and other core java files in package "com.java.action" . Also I am imorting java files in package
"com.java.action" to the package "com.java.servlet".
But when I am compiling the servlet files in package "com.java.servlet"
then the servlet files are not compiling because it cannot able to import
java files in package "com.java.action" . I have tried all the options.
If anybody has solution then please respond immediately.

I agree with the previous poster, this sounds like a generic compiling problem. FYI: I do not think that packages that start with "com.java." are special or reserved in any way.
You are making a servlet, not a JSP, right? Since this is merely about compiling, you might want to re-post to "Java Programming".

Tomcat Servlet - TCP Port Already in Use?

My problem is that tomcat/servlet is not releasing its TCP port after my servlet closes the port. Next time a servlet tries to use the port it gets an error "Port already in use". Using netstat I can see the port is still in use. If I stop tomcat and restart it, the port is released. I have not had this sort of problem writing C programs that use sockets.
My setup is Fedora Core 6 with JDK1.5_14 and Tomcat 5.5.26. I know it's not the latest, but sockets and streams have been around for a long time.
Actual implementation uses a trivial javaserver page to instantiate a class to create/accept connection from a client (JApplet). After connection, it starts a thread to receive data. I am using ServerSocket(), InputStreamReader(), and OutputStreamWriter(). On ServerSocket I set ReuseAddress to true.
I have try/catch on all my I/O and use tomcat context log for error and OK messages. Data transfer is perfect. Detect close by client works. In the context log I see close of streams and ServerSocket occur with no exceptions. Then, I manually close the jsp window. No indication of any problems. If I use different port 2nd time (e.g. 50001) it all works perfect. If I use my default (50000) again, servlet gets an error during bind, "Port already in use".
2.5 years with Java. 5 years with Linux and C.
Please advise or refer

rwengr wrote:
My problem is that tomcat/servlet is not releasing its TCP port after my servlet closes the port. Next time a servlet tries to use the port it gets an error "Port already in use". Using netstat I can see the port is still in use. If I stop tomcat and restart it, the port is released. I have not had this sort of problem writing C programs that use sockets.Nice.... Not sure that matters though.
>
My setup is Fedora Core 6 with JDK1.5_14 and Tomcat 5.5.26. I know it's not the latest, but sockets and streams have been around for a long time.
Actual implementation uses a trivial javaserver page to instantiate a class to create/accept connection from a client (JApplet). Bleah! Don't use a JSP for that. Use a servlet at worst. At best use a Servlet to start some other socket manager class which you can/have tested outside the Servlet Container environment.
After connection, it starts a thread to receive data. I am using ServerSocket(), InputStreamReader(), and OutputStreamWriter(). On ServerSocket I set ReuseAddress to true.
I have try/catch on all my I/O and use tomcat context log for error and OK messages. Data transfer is perfect. Detect close by client works. In the context log I see close of streams and ServerSocket occur with no exceptions. Then, I manually close the jsp window. Closing the browser window has no affect on the server.
No indication of any problems. If I use different port 2nd time (e.g. 50001) it all works perfect. If I use my default (50000) again, servlet gets an error during bind, "Port already in use".
2.5 years with Java. 5 years with Linux and C.
Please advise or referShow some code. If you just want some generic advice it would be to close the port, as soon as you don't need it anymore. But you know that. Without any further code I think that is about all that can be said.
P.S. Make the code as small as possible, compilable, but still demonstrating the problem. Also see: [this tutorial as an example...|http://www.javaworld.com/javaworld/jw-12-1996/jw-12-sockets.html?page=1]

Servlets and Workspaces

I have a named workspace which is created at startup of the server
          within a starup class.
          When the startup method is called, I instantiate and put an object
          called FooObject in the workspace.
          Then, in a servlet, called Dispatcher, in the service method, I
          retrieved my named workspace and the object
          FooObject which is in this workspace. At this time, I have a
          ClassCastException.
          To give you more details about my configuration, here is my directory
          configuration:
          weblogic
          |----------- serverclasses
          |------------- startupObject
          |------------- FooObject
          |----------- servletclasses
          |------------- myServlet
          |------------- FooObject (which is exactly
          the same of the serverclasses one)
          Do you have any ideas ? The idea is to instantiate a given object at the
          startup of the web server and to retrieve
          these objects within servlets and JSPs.
          Regards.
          Alexandre Aubry
          Consultant
          Fi System, The Web Agency
          http://www.fisystem.fr
          mailto:[email protected]
          Phone: +33 1 55 04 03 03 Fax: +33 1 55 04 03 04


Do you have Service Pack 6. SP6 is supposed to fix this problem
          "Jon Armstrong" <[email protected]> wrote in message
          news:[email protected]...
          > Mark/All,
          >
          > As a recent member of the list, this is the only reference/post that
          seemed that
          > it might be related to the problem I'm seeing.
          >
          > I have a servlet that runs fine if I register it through the standard WLS
          httpd
          > servlet mechanism:
          >
          > weblogic.httpd.register.XE=appl.X.EServlet
          > weblogic.httpd.servlet.classpath=\
          > /weblogic/myserver/public_html/XE/myclasses.jar;\
          > ... etc.
          >
          > If I attempt to deploy the servlet as a WebApp:
          >
          > weblogic.httpd.webApp.XE=/C:/XE
          >
          > Where: C:/XE contains
          >
          > WEB-INF/web.xml
          > WEB-INF/lib/myclasses.jar (contains: appl.X.EServlet)
          > WEB-INF/lib/...
          > ...etc.
          >
          > I get the following ClassCast Exception when invoking the servlet:
          >
          > Fri Nov 10 15:14:08 EST 2000:<E> <ServletContext-XE> Error casting
          servlet:
          > appl.X.EServlet java.lang.ClassCastException: appl.X.EServlet
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java
          :382)
          >
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.ja
          va:349)
          >
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.jav
          a:338)
          >
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:16
          4)
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
          :99)
          >
          > at
          >
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
          l.java:742)
          >
          > at
          >
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
          l.java:686)
          >
          > at
          >
          weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContext
          Manager.java:247)
          >
          > at
          weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:361)
          > at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
          > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          >
          > Fri Nov 10 15:14:08 EST 2000:<E> <ServletContext-XE> Servlet failed with
          > Exception
          > javax.servlet.ServletException: Servlet class: appl.X.EServlet does not
          > implement javax.servlet.Servlet
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java
          :385)
          >
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.ja
          va:349)
          >
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.jav
          a:338)
          >
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:16
          4)
          > at
          >
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
          :99)
          >
          > at
          >
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
          l.java:742)
          >
          > at
          >
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
          l.java:686)
          >
          > at
          >
          weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContext
          Manager.java:247)
          >
          > at
          weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:361)
          > at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
          > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          >
          > This class doesn't <implement> Servlet. It <extends> a class which
          eventually
          > <extends> HttpServlet... which should suffice, much like the typical
          HelloWorld
          > sample servlets.
          >
          > I have to remove the WEB-INF directory and register this as a standard
          httpd
          > servlet to get weblogic to run it properly.
          > This servlet deploys fine with Jakarta-Tomcat as a WebApp and the same
          web.xml
          > file. I can post that, if need be. I assume the classloader is somehow
          > confused.
          >
          > Is this the same problem discussed below? If so, there's no reference to
          the
          > version of WLS that will address this issue.
          >
          > I'm currently using WLS 5.1. <Fri Nov 10 13:48:48 EST 2000:<I>
          <WebLogicServer>
          > ************ WebLogic Server (5.1.0 04/03/2000 17:13:23 #66825)>
          >
          > Has this been fixed or is there a workaround that allows WebApp deployment
          to
          > succeed? I really would like to stay away from as much web/app server
          specific
          > configuration as possible before taking this into the field.
          >
          > Jon
          >
          > Mark Griffith wrote:
          >
          > > Alexandre:
          > >
          > > Although byte for byte the FooObject is the same, according to the VM
          they
          > > are different class. This is because a class's type distinctiveness is
          > > based not only its interfaces,methods,data members etc but ALSO on its
          > > classloader. There is a different classloader for the
          > > serversclasses_FooObject and the servletclasses_FooObject so they are
          > > considered different, so you get a CCE.
          > >
          >
          > etc...
          >
          > >
          > > This will be handled more elegantly in our next major release Spring
          2000,
          > > however note (and prepare by designing accordingly) the solution is to
          allow
          > > the Servlet to interact with interfaces not actual classes and these
          > > interfaces can be stuffed into system/server loaded classes such as
          > > workspaces and httpsessions, thus preventing CCE's.
          > >
          > > Cheers
          > > Mark G
          > >
          > > Alexandre Aubry wrote:
          > >
          > > > I have a named workspace which is created at startup of the server
          > > > within a starup class.
          > > > When the startup method is called, I instantiate and put an object
          > > > called FooObject in the workspace.
          > > >
          > > > Then, in a servlet, called Dispatcher, in the service method, I
          > > > retrieved my named workspace and the object
          > > > FooObject which is in this workspace. At this time, I have a
          > > > ClassCastException.
          > > >
          > > > To give you more details about my configuration, here is my directory
          > > > configuration:
          > > > weblogic
          > > > |----------- serverclasses
          > > > |------------- startupObject
          > > > |------------- FooObject
          > > > |----------- servletclasses
          > > > |------------- myServlet
          > > > |------------- FooObject (which is
          exactly
          > > > the same of the serverclasses one)
          > > >
          > > > Do you have any ideas ? The idea is to instantiate a given object at
          the
          > > > startup of the web server and to retrieve
          > > > these objects within servlets and JSPs.
          > > >
          > > > Regards.
          > > >
          > > > --
          > > > Alexandre Aubry
          > > > Consultant
          > > > Fi System, The Web Agency
          >
          > ---
          > Jon M. Armstrong
          > Senior Systems Consultant
          > Xelus, Inc.
          >
          > EMail: [email protected]
          > Phone: 716-419-3155
          > Fax: 716-248-9199
          >
          > Visit us online: http://www.xelus.com
          >
          >

Tomcat servlet/JSP container default files on 10gAS(10.1.2.0.2)

Hi Friends,
I am using Oracle Application Server 10g (10.1.2.0.2) on windows
I have the Vulnerability: Apache Tomcat servlet/JSP container default files.
and the fix is Review the files and delete those that are not needed.
i would like to know the location of the files to review and delete.Please suggest?
Regards,
DB

Apache/Tomcat is not related to OAS, where did you get this info? OAS is based in a Orion Web Server and Apache HTTP Server, not Tomcat.
For this kind of problems there are the CPU you may want to check in Metalink for them.
Can you clarify also what default files?
Greetings.

Tomcat servlet and BC provider

Similar Messages

Maybe you are looking for