Error registering RequestProcessor
We're using Tomcat 5.0.28 which is fronted by Apache 1.3.29 + modjk 1.2.6 We're seeing this error message in the logs occasionally. The error occurs at any time interval AFTER tomcat has been started up - two hours was the last time it occured after startup. This server is one of two in a (jk) load balanced configuration - they do not use or share sessions and act purely as image servers (from a db + file system). 13-Jan-2005 17:27:36 org.apache.commons.modeler.Registry registerComponent SEVERE: Error registering Catalina:type=RequestProcessor,worker=jk-8009,name=JkRequest129 javax.management.InstanceAlreadyExistsException: Catalina:type=RequestProcessor,worker=jk-8009,name=JkRequest129 at mx4j.server.MBeanServerImpl.register(MBeanServerImpl.java:1123) at mx4j.server.MBeanServerImpl.registerImpl(MBeanServerImpl.java:1054) at mx4j.server.MBeanServerImpl.registerMBeanImpl(MBeanServerImpl.java:1002) at mx4j.server.MBeanServerImpl.registerMBean(MBeanServerImpl.java:978) at org.apache.commons.modeler.Registry.registerComponent(Registry.java:871) at org.apache.jk.common.ChannelSocket.registerRequest(ChannelSocket.java:436) at org.apache.jk.common.HandlerRequest.decodeRequest(HandlerRequest.java:443) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:352) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:743) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:675) at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:866) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) at java.lang.Thread.run(Thread.java:534) 13-Jan-2005 17:27:36 org.apache.jk.common.ChannelSocket registerRequest WARNING: Error registering request Does anyone know if this is this serious? And do you think that this TC instance is still able to serve requests. (Because this is our production environment we can't do much testing with these servers and haven't seen the error on our development servers). Thanks for any insight or help. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Apache, Tomcat, WebDAV, and Web Folders... Oh, my!
I've also written a custom webdav servlet because we need to work with a custom/virtualised file store. Our servlet works fine for everything except some flavours of M$shite Windows - the symptoms I get are identical to the ones you describe. Like you our server is not running on localhost, and the user's directory is not the root, and the user has to authenticate (using basic authentication)... As yet I have not been able to work out a solution, although I know it exists because sites like sharemation.com have somehow worked around the problem - I just haven't figured out how they do it. If you find a solution to this problem can you let me know - it has driven us mad for months before we finally gave up... We recommend users install webdrive - it works great but costs US$30 a pop! Thanks for any help (if you find a solution) John Sidney-Woollett ps Here is another document that may help you: http://support.microsoft.com/default.aspx?scid=kb;EN-US;269681 And some specific instructions that work (sometimes) but I don't want my users to have to play around with their OS installs: quote The problem is a conflicting Office Installation (since Office 2002) which changes the webdav components of Windows XP. To change them back (to the working one) you need to follow these steps: 1. You will find a file called webfldrs.msi (Normally under \WINDOWS\SYSTEM32\webfldrs.msi - if you installed Windows XP Servicepack 1 you will find it under \WINDOWS\ServicePackFiles\i386\webfldrs.msi). 2. Start the installation with double-click or right-click - webfldrs.msi. 3. Now you have to click on Select reinstall mode. 4. Uncheck Repair all detected reinstall problems. Check Force all files to be reinstalled, regardless of checksum or version. Check Verify that required user registry entries are present. Check Verify that required machine registry entries are present. Check Validate shortcuts. 5. Press OK and REINSTALL 6. Normally no reboot is required and now everything goes fine. /quote - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Prevent session creation by DefaultServlet
Is there any way on tomcat 5.0.x to prevent tomcat/defaultServlet creating a session when serving static image files (*.jpg, *.gif, *.png)? This is only an issue if the browser has cookies switched off (and some users do). I know you can prevent the creation of a session in a JSP with (%@ page session=false %), but is there a way of doing this for other resources (like images)? We log all new sessions in a database, but we're finding when a browser has cookies switched off the defaultservlet/tomcat is generating a new session to serve each graphic elements on the page and it's clogging up our session monitor/logger (which implements HttpSessionListener). Also it's hard to distinguish these sessions from real user sessions - although we can if we use a filter to check the request URL to see what resource was requested, and then ignore the image requests. Any ideas? John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
http-https url rewrite bug TC 5.0.28?
I'm not sure if this is a bug or a misunderstaning on my part - and I've
been searching the archives and googling for most of the day without
success...
I've got a problem where URL rewriting is failing to correctly encode
the URL when switching from an insecure (non-ssl) connection to a secure
ssl connection FOR THE SAME DOMAIN and where the session already exists
for the insecure connection and COOKIES ARE DISABLED in the browser. I
can reproduce this behaviour with different browsers.
An action servlet receives the non-ssl request and redirects to
another secure action servlet. The call for the redirect should encode
the URL as follows in the first servlet's service(request, response) method:
[snip]
if (gotoCheckout)
{
//goto the checkout
//this generates the URL
//https://www.mytestsite.com/CheckoutAction?action=start
String url = CheckoutAction.getCheckoutActionStartURL(request);
//make sure the JSESSIONID is appended for non-cookie browsers
url = response.encodeRedirectURL(url);
response.sendRedirect(url);
return;
}
[snip]
Looking at the headers, you can see that the JSESSIONID is not appended
to the redirect URL when the protocol switches from http to https:
REQUEST
===
POST
http://www.mytestsite.com/BasketAction;jsessionid=9E490ADF8FB268E3F6BC5FA2FD61E8CF
HTTP/1.1
Host: www.mytestsite.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5a)
Gecko/20030728 Mozilla Firebird/0.6.1
Accept:
text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,video/x-mng,image/png,image/jpeg,image/gif;q=0.2,*/*;q=0.1
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Proxy-Connection: keep-alive
Referer:
http://www.mytestsite.com/basket;jsessionid=9E490ADF8FB268E3F6BC5FA2FD61E8CF
Content-Type: application/x-www-form-urlencoded
Content-Length: 66
ret=%2Fimage%2F6503740500223action=updbutaction=checkoutqty_0=1
RESPONSE
HTTP/1.x 302 Moved Temporarily
Date: Mon, 15 Nov 2004 13:38:23 GMT
Server: Apache/1.3.29
Location: https://www.mytestsite.com/CheckoutAction?action=start
Content-Length: 0
Content-Type: text/plain
Connection: close
Setup
Apache 1.3.29 + mod_ssl + mod_jk + tomcat 5.0.28 (unix)
Apache is configured with two virtual directives; one for port 80 and
one for post 443 and the requests are forwarded by mod_jk to tomcat
which has the following in its server.xml config:
[snip]
Host name=www.mytestsite.com appBase=/ef02/tc/www.mytestsite.com
Context path= docBase=ROOT debug=0 reloadable=false
ResourceLink name=jdbc/D1DB global=jdbc/D1DB
type=javax.sql.DataSource/
/Context
/Host
[snip]
Tomcat possibly nevers sees that the request is secure because the SSL
part of the transaction is handled by mod_SSL, and I don't know if this
has a bearing on the issue?
My question, should the JSESSIONID be appended in the encoded redirect -
I think so?
And if it should, am I doing something wrong. Or is there a bug?
If there is a bug, should I manually append the ;jsessionid=xxx to
the URL to workaround the problem.
Can anyone shed any light on this?
Many thanks
John Sidney-Woollett
-
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Re: http-https url rewrite bug TC 5.0.28?
I should have mentioned that the problem I'm seeing is causing a new
session to be created after the redirect when in fact I want the
original session data prior to the redirect...
John Sidney-Woollett
John Sidney-Woollett wrote:
I'm not sure if this is a bug or a misunderstaning on my part - and I've
been searching the archives and googling for most of the day without
success...
I've got a problem where URL rewriting is failing to correctly encode
the URL when switching from an insecure (non-ssl) connection to a secure
ssl connection FOR THE SAME DOMAIN and where the session already exists
for the insecure connection and COOKIES ARE DISABLED in the browser. I
can reproduce this behaviour with different browsers.
An action servlet receives the non-ssl request and redirects to
another secure action servlet. The call for the redirect should encode
the URL as follows in the first servlet's service(request, response)
method:
[snip]
if (gotoCheckout)
{
//goto the checkout
//this generates the URL
//https://www.mytestsite.com/CheckoutAction?action=start
String url = CheckoutAction.getCheckoutActionStartURL(request);
//make sure the JSESSIONID is appended for non-cookie browsers
url = response.encodeRedirectURL(url);
response.sendRedirect(url);
return;
}
[snip]
Looking at the headers, you can see that the JSESSIONID is not appended
to the redirect URL when the protocol switches from http to https:
REQUEST
===
POST
http://www.mytestsite.com/BasketAction;jsessionid=9E490ADF8FB268E3F6BC5FA2FD61E8CF
HTTP/1.1
Host: www.mytestsite.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5a)
Gecko/20030728 Mozilla Firebird/0.6.1
Accept:
text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,video/x-mng,image/png,image/jpeg,image/gif;q=0.2,*/*;q=0.1
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Proxy-Connection: keep-alive
Referer:
http://www.mytestsite.com/basket;jsessionid=9E490ADF8FB268E3F6BC5FA2FD61E8CF
Content-Type: application/x-www-form-urlencoded
Content-Length: 66
ret=%2Fimage%2F6503740500223action=updbutaction=checkoutqty_0=1
RESPONSE
HTTP/1.x 302 Moved Temporarily
Date: Mon, 15 Nov 2004 13:38:23 GMT
Server: Apache/1.3.29
Location: https://www.mytestsite.com/CheckoutAction?action=start
Content-Length: 0
Content-Type: text/plain
Connection: close
Setup
Apache 1.3.29 + mod_ssl + mod_jk + tomcat 5.0.28 (unix)
Apache is configured with two virtual directives; one for port 80 and
one for post 443 and the requests are forwarded by mod_jk to tomcat
which has the following in its server.xml config:
[snip]
Host name=www.mytestsite.com appBase=/ef02/tc/www.mytestsite.com
Context path= docBase=ROOT debug=0 reloadable=false
ResourceLink name=jdbc/D1DB global=jdbc/D1DB
type=javax.sql.DataSource/
/Context
/Host
[snip]
Tomcat possibly nevers sees that the request is secure because the SSL
part of the transaction is handled by mod_SSL, and I don't know if this
has a bearing on the issue?
My question, should the JSESSIONID be appended in the encoded redirect -
I think so?
And if it should, am I doing something wrong. Or is there a bug?
If there is a bug, should I manually append the ;jsessionid=xxx to
the URL to workaround the problem.
Can anyone shed any light on this?
Many thanks
John Sidney-Woollett
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
RE: http-https url rewrite bug TC 5.0.28?
Yoav Either you're wrong or Tomcat 5.0.x may be broken... With cookies enabled you can transfer the session from a non-secure connection to a secure connection for the same domain/webapp. Tomcat does NOT generate a new (secure) session. The problem is that TC 5.0.28 does not exhibit the same behaviour when cookies are disabled. In this case, Tomcat does in fact generate a new (secure) session. So what we have here appears to be non-consistant behaviour from Tomcat based on client behaviour beyond the control of the web app developer... :( And all because response.encodeRedirectURL(url) did not append the jsessionid to the URL when switching protocols. If encodeRedirectURL appended the session id, then you would have consistant behaviour from Tomcat. Now it could be that using response.encodeRedirectURL(url) is not the correct way to pass the session from an http to https connection. And in fact the only way to guarantee that the non-secure session data is passed to the secure connection is using the following hack: url = url + ;jsessionid= + session.getId() when cookies are disabled. My personal preference is to create a new static method which takes the current request and the new request URL and generates a correctly rewritten URL (based on the fact that I want the non-secure session passed to the secure pages). And to use that whereever I have been using response.encodeRedirectURL(url) and response.encodeURL(url) I still that Tomcat is broken/inconsistant on this point... Any other thoughts or solutions, anyone? John Sidney-Woollett Yoav Shapira wrote: Hi, Not a bug. You can't share a session that way, whether using cookies or URL-rewriting. Yoav Shapira http://www.yoavshapira.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: http-https url rewrite bug TC 5.0.28?
Tomcat still seems broken to me because it does in fact share the
session from a non-secure connection to a secure connection when cookies
are enabled, but not when they are not.
But you've given me some inkling as to what is going on.
I can't believe that there isn't a standard solution for dealing with
this issue.
ie, non-ssl when adding things to your basket, switch to SSL going
through the checkout stages, then back to non-ssl after completing the
order.
Thanks for the extra info.
John
Scott Ahten wrote:
To clarify Yoav's response, this is not a bug but by design.
Tomcat does not allow session data to be shared between secure and
non-secure pages. This is to prevent someone from gaining access to
session data that was submitted via a secure page by using a non-SSL
URL and the user's session id, observed during the initial unencrypted
connection.
You will need to either collect all necessary information via SSL or
persist data from the non-secure session (database, serialization,
etc.) for retrieval by the secure session when you make the switch.
- Scott
On Nov 15, 2004, at 10:24 AM, Shapira, Yoav wrote:
Hi,
Not a bug. You can't share a session that way, whether using cookies or
URL-rewriting.
Yoav Shapira http://www.yoavshapira.com
-Original Message-
From: John Sidney-Woollett [mailto:[EMAIL PROTECTED]
Sent: Monday, November 15, 2004 10:21 AM
To: [EMAIL PROTECTED]
Subject: http-https url rewrite bug TC 5.0.28?
I'm not sure if this is a bug or a misunderstaning on my part - and
I've
been searching the archives and googling for most of the day without
success...
I've got a problem where URL rewriting is failing to correctly encode
the URL when switching from an insecure (non-ssl) connection to a
secure
ssl connection FOR THE SAME DOMAIN and where the session already exists
for the insecure connection and COOKIES ARE DISABLED in the browser. I
can reproduce this behaviour with different browsers.
An action servlet receives the non-ssl request and redirects to
another secure action servlet. The call for the redirect should
encode
the URL as follows in the first servlet's service(request, response)
method:
[snip]
if (gotoCheckout)
{
//goto the checkout
//this generates the URL
//https://www.mytestsite.com/CheckoutAction?action=start
String url = CheckoutAction.getCheckoutActionStartURL(request);
//make sure the JSESSIONID is appended for non-cookie browsers
url = response.encodeRedirectURL(url);
response.sendRedirect(url);
return;
}
[snip]
Looking at the headers, you can see that the JSESSIONID is not appended
to the redirect URL when the protocol switches from http to https:
REQUEST
===
POST
http://www.mytestsite.com/BasketAction; jsessionid=9E490ADF8FB268E3F6BC5
FA2F
D61E8CF
HTTP/1.1
Host: www.mytestsite.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5a)
Gecko/20030728 Mozilla Firebird/0.6.1
Accept:
text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/ pla
in;q
=0.8,video/x-mng,image/png,image/jpeg,image/gif;q=0.2,*/*;q=0.1
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Proxy-Connection: keep-alive
Referer:
http://www.mytestsite.com/basket; jsessionid=9E490ADF8FB268E3F6BC5FA2FD6
1E8C
F
Content-Type: application/x-www-form-urlencoded
Content-Length: 66
ret=%2Fimage%2F6503740500223action=updbutaction=checkoutqty_0=1
RESPONSE
HTTP/1.x 302 Moved Temporarily
Date: Mon, 15 Nov 2004 13:38:23 GMT
Server: Apache/1.3.29
Location: https://www.mytestsite.com/CheckoutAction?action=start
Content-Length: 0
Content-Type: text/plain
Connection: close
Setup
Apache 1.3.29 + mod_ssl + mod_jk + tomcat 5.0.28 (unix)
Apache is configured with two virtual directives; one for port 80 and
one for post 443 and the requests are forwarded by mod_jk to tomcat
which has the following in its server.xml config:
[snip]
Host name=www.mytestsite.com appBase=/ef02/tc/www.mytestsite.com
Context path= docBase=ROOT debug=0 reloadable=false
ResourceLink name=jdbc/D1DB global=jdbc/D1DB
type=javax.sql.DataSource/
/Context
/Host
[snip]
Tomcat possibly nevers sees that the request is secure because the
SSL
part of the transaction is handled by mod_SSL, and I don't know if this
has a bearing on the issue?
My question, should the JSESSIONID be appended in the encoded redirect
-
I think so?
And if it should, am I doing something wrong. Or is there a bug?
If there is a bug, should I manually append the ;jsessionid=xxx
to
the URL to workaround the problem.
Can anyone shed any light on this?
Many thanks
John Sidney-Woollett
-
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communication, and may contain information that is confidential,
proprietary and/or privileged
java environment + cron issue
On a unix RH8 box starting and stopping TC 5.0.18 under the root account using the following script: #!/bin/sh # This script stops tomcat for (about) 1 minute, and then restarts it # it is run at the same time as the script to backup the # database (which is shutdown, and a file level copy made) echo Stopping Tomcat at `date` /usr/local/jakarta-tomcat-5.0.18/bin/shutdown.sh echo Tomcat shutdown at `date` sleep 15 echo Starting Tomcat at `date` /usr/local/jakarta-tomcat-5.0.18/bin/startup.sh stops and starts TC as expected, and after TC is restarted all my JSP's correctly render UTF-8 strings. However if the script is invoked from cron, the JSPs render all non-standard ASCII characters (like accented ones) as a ? (question mark), until TC is restarted again by executing the above script under the root account. Does anyone know what the cause of the problem is, and how to fix it? (We will be upgrading to TC 5.0.28 shortly, but I don't think the TC version is the issue). There must be some kind of enviroment issue going on that I don't understand. Thanks John Sidney-Woollett ps here is the cron entry (created using crontab -e from the root account). # crontab -l # DO NOT EDIT THIS FILE - edit the master and reinstall. # (/tmp/crontab.11679 installed on Fri Aug 20 07:12:03 2004) # (Cron version -- $Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp $) 45 3 * * * /bin/nice /usr/bin/rsync-backup-client / [EMAIL PROTECTED]:/ # Pause tomcat for database backup, make sure this job is run # at the same time as the db backup job on ddgfe1a 5 5 * * * /usr/local/bin/pauseTC.sh - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: java environment + cron issue
You might try compare results of /usr/bin/env executed from cron and command-line. You may need to set some environment variables, LANG for example, to make JVM works as you expected. You're right - when the script is run by cron the LANG environment variable is undefined. I will modify the script to set the variable and see what happens tomorrow. Thanks for the answer! John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: JSP WhiteSpace
I've used a Filter to strip out redundant whitespace from text/html output. I wrapped the ServletResponse so that a custom ServletOutputStream filters out empty and recurring linefeeds. Works pretty well. One downside to this approach is that the filter is being called for every request which may cause you a performance problem down the line. A better approach would be a flag that the jasper compiler could locate to automatically strip redundant/duplicated C/Rs and TABs from the source when compiling so that statements like this: out.write(\r\n\t\t\t\ttd ); become out.write(td ); eg % // NOWHITESPACE % \t\t\t\ttd %=bgColor%width=10 valign=topinput type=checkbox name=id value=%=String.valueOf(ff.getEncodedRef())%/td\r \t\t\t\ttd %=bgColor% width=18 valign=middlea href=%=gotoURL%%=icon%/a/td\r % // /NOWHITESPACE % becomes td %=bgColor%width=10 valign=topinput type=checkbox name=id value=%=String.valueOf(ff.getEncodedRef())%/tdtd %=bgColor% width=18 valign=middlea href=%=gotoURL%%=icon%/a/td prior to compilation. In fact this is the approach that I'm going to take. I'm going to write a source file pre-processor (maybe even as part of the Ant web-app build process) which will remove all redundant whitespace from the source file prior to compilation. It will only be used on a COPY of the orginal source files (prior to deployment) Note that sometimes you need the whitespace - perhaps in javascript sections of the JSP page which is why you need to be able to switch on/off the whitespace removal. If the jasper compiler could do this automatically then that would be great. On average you can see a 10% reduction in file size. We also use mod_deflate with Apache to reduce the data transmission costs even further. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Strange behavious with session creation on http and https
Ismael Blesa Part said: I have set two connectors http and https. I have my webapp that is served by these two connectors. [snip] However, If I connect first to https and then I change to http, I will have two sessions, one for https and the other one to http. I believe that this is normal. If you ensure that the session is created using a non secure page first (you can always redirect from a non-secure to a secure page after creating the session), then the problem will go away. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Strange behavious with session creation on http and https
Ismael Blesa Part said: I would like to have different sessions for different schemas, that is, If you connect to http and then to https then TWO DIFFERENT sessions are created. But I have not found how to do this. My fear is that on different application servers the behaviour is different. If this is the behaviour that you want, then you only have to worry about the case when the user goes from http to https (because you want a new session instead of the old one). One way to do this would be to record the type of connection (secure or not) in the session when it is created, and then when you go to a secure connection, check the value you stored (in the session). If it indicates that the session was not originally created by a secure requested, invalidate that session, and create a new one. I think that will probably work. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: jk connector build / configure failure
Christoph P. Kukulies said: On Fri, Apr 16, 2004 at 07:31:40AM +0800, Eric Noel wrote: On 4/15/2004 10:28 PM, C. Kukulies wrote: In the vein of getting tomcat 5 apache 1.3.29 integration working I'm now at the point where I came to the conclusion that I need to build jakarta-tomcat-connectors-jk-1.2.5-src/jk/native Correct me if I'm wrong but I came there by reading and skimming the web. Noone could help me in this list so far. Maybe because everyone is using apache2, don't know. We're using Apache 1.3 + mod-ssl + mod_deflate + mod_accel + modJK1.2.5 + Tomcat 5.0.18, and it works great (especially mod_deflate!). Basically when you build Apache (from source on Linux), make sure you build it with so support, eg ./configure --prefix=/usr/local/apache --enable-module=ssl --enable-module=so make; make install; Then get mod_jk source from jakarta.apache.org, and unpack, and build as follows (in the unpacked dir): ./buildconf.sh ./configure --with-apxs=/usr/local/apache/bin/apxs --enable-EAPI If you don't yet have a modules directory, then mkdir /usr/local/apache/modules cp apache-1.3/mod_jk.so /usr/local/apache/modules You still have to create a workers.properties file, and add the JKxx settings into your Apache httpd.conf file, to get the two to talk together. I know this instructions are vague, but hopefully in conjunction with others docs, you will be able to get Apache and Tomcat connected using JK. They do work really well together (with Apache frontending your SSL transactions, fielding static resources, compressing responses, and load balancing between two or more TC servers) - it is worth perservering. Good luck. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Virtual Hosting Revisited - Apache serving static pages..???
John B. Moore said: Thanks for responding.. And yes, I keep hearing that one can do this ... But...G I'm slow I guess, because that still does not give me a hint as to HOW that is to be configured.. Do you have some virtual host directives that do this that I can use as examples.. Maybe my problem is that I am thinking I could have the static pages located under Apache/htdocs and the jsp pages under Tomcat/webapps.. I can't find and example that combines the standard Apache virtual host directives with what is needed to also direct the jsp to Tomcat.. I can easily to each separately, but have yet to find a way to do both Here you go... # External IP Address: xxx.xxx.xxx.xxx VirtualHost 192.168.1.111:80 ServerName test.mydomain.com ServerAdmin [EMAIL PROTECTED] DocumentRoot /var/www/test.mydomain.com ErrorLog /var/log/httpd/test.mydomain.com/error_log CustomLog /var/log/httpd/test.mydomain.com/access_log combined JkMount /someurl/MySpecialServlet worker1 JkMount /admin/* worker1 JkMount /manager/* worker1 JkMount /*.jsp worker1 /VirtualHost Create as many JKMount entries as you need to map all your servlets and JSPs. Whatever doesn't match any of the JkMount entries will be handled by Apache from the document root (/var/www/test.mydomain.com in this example). You can even route the different servlet/jsp requests to different tomcat workers (if that is needed or works for you). Hope that helps. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: session affinity with loadbalancing (apache2, mod_jk, tomcat5 on linux 9, jdk1.4.2)
Hi Don't you also have to provide the properties for the loadbalancer worker? eg # properties for load balanced workers worker.loadbalancer.type=lb worker.loadbalancer.balanced_workers=tomcat1,tomcat2 and then add the extra properties you require (to worker.loadbalancer.XXX)? Hope that helps. John Sidney-Woollett ian said: I've read in the Workers How To of apache that the property sticky_session for lb worker properties enables / disables session affinity for the load balancer. When I tried it on my system the session doesn't seem to be retained often resulting to a session timed out or a not logged in error. Below is my worker.properties configuration. # # worker.properties # # In Unix, we use forward slashes: ps=/ # list the workers by name worker.list=tomcat1, tomcat2, loadbalancer # # tomcat1 worker # worker.tomcat1.host=192.168.0.61 worker.tomcat1.port=8009 worker.tomcat1.lbfactor=100 worker.tomcat1.type=ajp13 worker.tomcat1.cachesize=10 worker.tomcat1.cache_timeout=600 worker.tomcat1.socket_keepalive=1 worker.tomcat1.socket_timeout=300 # # tomcat2 worker # worker.tomcat2.host=192.168.0.65 worker.tomcat2.port=8009 worker.tomcat2.lbfactor=100 worker.tomcat2.type=ajp13 worker.tomcat2.cache_timeout=600 worker.tomcat2.socket_keepalive=1 worker.tomcat2.socket_timeout=300 # # end of file # Can anyone give me an idea where I may have an error? Thanks. - ian - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: AJP connector monitoring
Antonio Fiol Bonnín said: Hi, I'd like to have our Tomcat servers monitored, in order to get an alarm if one of them stops responding. But they are not using HTTP at all. We are using the Coyote AJP connector because we have Apache in front of them, in a balanced configuration. If you cannot find an AJP client... Why not have tomcat listen for http requests as well (on 8080 or some other port) (only accessible on your internal network), and have your monitor script call some URL (a monitor servlet you create) on the tomcat server to determine whether the tomcat server (and your web app) is up and running. Either use the response code (including no response) and/or the response data/output to determine the state of the app server (and your application). You can use wget or some http client to poll your server. This is how we do it even though we front-end Tomcat using Apache as well. This works great with Nagios... John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Securing a folder
If you are using JK to connect Apache and Tomcat, you can specify JkMounts which should cause Apache to forward the request to tomcat to handle. For example: VirtualHost 192.168.1.10:80 ServerName www.domain.com ServerAdmin [EMAIL PROTECTED] DocumentRoot /var/www/www.beanpix.com ErrorLog /var/log/httpd/www.domain.com/error_log CustomLog /var/log/httpd/www.domain.com/access_log combined JkMount /pdfs/* worker JkMount /*.jsp worker /VirtualHost should cause any URL with the pattern /pdfs/* and *.jsp to be processed by tomcat. Whether you do this in the main section of the httpd.conf or for a virtual host only is up to you and your configuration. Also consider not having the location of the pdf's within the Apache web root, but instead only accessible by Tomcat... You can then enforce security using a filter, or using some other method. Hope that helps John Sidney-Woollett Dean Searle said: Hello Everyone, Not to sure how to phrase this but here I go anyways. I am attempting to secure a folder that is located within my application. This folder contains pdf's that only need to be accessible by tomcat, the site requires a password to enter. At first if I did www.domain.com/pdfs/somefile.pdf it would open up somefile.pdf. So I tried this in my http.conf file for the website: Location /pdfs order deny,allow deny from all allow from 127.0.0.1 /Location But now tomcat cannot even retrieve the pdf's. Am I doing this right. Could you please point me to some doc's that might explain this more. Not sure if this helps or not: Windows 2000 Server SP4 Tomcat 4.1.24 LE Apache 2.0.46 JDK 1.4.1_02 Thank you for time Dean - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: RE : JSP suggestion
Ralph Einfeldt said: Sorry, but that wouldn't help the original poster. He is searching for a way to include taglib definitions and imports that are used in the pages. Any kind of dynamic include or decorators wouldn't achieve that. Sorry, you're right, misread the original post. Had it in my mind that they wanted to insert meta tags... John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RE : JSP suggestion
Also have a look at OpenSymphony's SiteMesh filter - it does just what you're trying to do with your filter explanation here. SiteMesh is VERY good! See http://www.opensymphony.com/sitemesh/ It looks complicated, but it's not, and you can control through an XML file which files get filtered or not (by pattern matching URLs). The real power is that you build your jsp pages and focus on the core presentation task in hand, then let the sitemesh filter decorate it by extracting your page head, body etc and inserting those elements into a template page (for example). You could have a simple template that just adds extra meta tags, or specifies the style sheet or whatever you want. I've seen no downsides to using it, and speed is good too. Couple it with OSCache (http://www.opensymphony.com/oscache/), and you have a couple of blinding tools. Hope that helps. John Sidney-Woollett Hertenstein Alain said: As for Servlet 2.3 specifications, you could easily create a Servlet Filter which would intercept all your requests based on your url-pattern (defined in web.xml), and which would do something like : RequestDispatcher reqDispatcher = request.getRequestDispatcher(header.jsp); reqDispatcher.include(request, response); And then let the filter forward to the requested page (chain.doFilter()). Thus all your pages would include your header.jsp file (beware not to include header.jsp into header.jsp file, or you'll get an infinite loop ;-) ) This is quite easy to implement and the best way IMHO. Have a look at the http://java.sun.com web site for more info on Servlet Filters, they are very handy as soon as you understand how they work. Hope this helps, Alain -Message d'origine- De : Keith Hyland [mailto:[EMAIL PROTECTED] Envoyé : mercredi, 24. mars 2004 16:56 À : Tomcat Users List Objet : Re: JSP suggestion Or you can specify a prelude.jspf file in your web.xml (I think this may only work with servlet spec 2.4 servers) (The prelude is added to the top of the file, the coda is added to the end of the file) jsp-config jsp-property-group display-nameallFiles/display-name url-pattern*.jsp/url-pattern el-ignoredfalse/el-ignored scripting-invalidfalse/scripting-invalid is-xmlfalse/is-xml include-prelude/template/prelude.jspf/include-prelude include-coda/template/coda.jspf/include-coda /jsp-property-group /jsp-config Keith Adam Buglass wrote on 24/03/2004, 14:55: I use jsp:include page=header.jsp flush=true / HTH. Adam. On Wed, 2004-03-24 at 14:46, Edson Alves Pereira wrote: Hello folks, i´d like to build a default jsp header to all my jsp´page, in this header i would put all taglibs and imports i need, but iin doubt about which is the best way to do it. Sould i make all others pageextends this header page or do a @ page import in every page? Any idea? Regards, Edson - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: mod_jk
Chris Haines said: I spent nine hours trying to get mod_jk to compile properly for Linux but had no luck. I wanted to download the binary but couldn't find one. So, I downloaded the source code. The instructions I had were full of misinformation. Then I got to a point where I seemed to have gotten close when I tried compiling it. I typed: ./configure -with-apxs=/usr/local/apache/bin/apxs -with-apache13=/usr/local/apache but, the program kept failing and would tell me that it couldn't find apxs. Thr problem may be that you didn't first compile Apache with --enable-module=so, if you don't do this you won't be able to build mod_jk (yes, the mod_jk install docs suck big time!), and I have never been able to find a binary for Linux... Here's what works (butchered from my own Apache + ModSSL build instructions) 1) in the Apache (source dist) directory (eg /usr/local/src/apache_1.3.29) ./configure --prefix=/usr/local/apache --enable-module=so make 2) build the mod_jk cd /usr/local/src/jakarta-tomcat-connectors-jk-1.2.5-src/jk/native ./buildconf.sh ./configure --with-apxs=/usr/local/apache/bin/apxs --enable-EAPI [Make sure apache built with --enable-module=so otherwise you get can't find apxs error!] mkdir /usr/local/apache/modules cp apache-1.3/mod_jk.so /usr/local/apache/modules That should help you out. Good luck! John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Internationalization problem
Keith Hyland said: I'm testing some japanese characters in my app and I'm getting some strange behaviour. japanese characters that are in the jsp page get displayed correctly. However characters that get displayed through the fmt:message tag get corrupted. I have set the -Dfileencoding=UTF-8 in my catalina.bat (CATALINA_OPTS), and set the head meta http-equiv=Content-Type content=text/html; charset=utf-8 /head at the op of my jsp page. Is there something I have to do to my resource properties file? I think that resource properties ONLY support ISO-8859-1. They do allow UTF characters to be defined provided the high order byte is zero. It is a weakness in property files (which is yet to be addressed). Consider populating the properties file without using the default load mechanism to allow/preserve the UTF-8 encoding. John Sidney-Woollett Any help appreciated. Cheers, Keith Is there something el Ralph Einfeldt wrote on 02/03/2004, 14:06: %@ page contentType=text/html;charset=UTF-8 pageEncoding=UTF-8 % - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: apache2/mod_jk/tomcat4 - file download / special characters in filename
try converting the filename to ISO-8859-1 as well eg filename = new String(file.getName(), ISO-8859-1); Your Code (modified): response.setHeader(Content-Disposition, attachment; filename= + new String(file.getName(), ISO-8859-1)); response.setContentLength((int)file.length()); response.setContentType(application/octet-stream); response.setHeader(Content-Transfer-Encoding, binary); Hope that helps. John Sidney-Woollett Andreas Hartstack said: Problem: In my tomcat webapp a servlet manages a filedownload. Clicking on a file-link results in the browser's save as dialog. Using tomcat alone (port 8080) everything works fine. Special characters (like German umlaut) are shown in ISO-8859-1. Apache2/mod_jk seems to change the charset to UTF-8, e.g. täst.txt looks like tät.txt. Code: response.setHeader(Content-Disposition, attachment; filename= + file.getName()); response.setContentLength((int)file.length()); response.setContentType(application/octet-stream); response.setHeader(Content-Transfer-Encoding, binary); I tried also: response.setContentType(application/octet-stream; charset=ISO-8859-1); or String tmpName = new String(f.getName().getBytes(),ISO-8859-1); response.setHeader(Content-Disposition, attachment; charset=ISO8859-1; filename=+tmpName); or response.setHeader(Content-Transfer-Encoding, ISO-8859-1); Configuration: - Suse 8.2 - Apache2.0.48 - Tomcat4.1.18 - mod_jk - $tomcat_home/bin/catalina.sh: export CATALINA_OPTS=-Dfile.encoding=ISO-8859-1 -Duser.language=de -Duser.country=DE Who can help ? Thank's in advance ! Andreas _ Schützen Sie Ihren Posteingang vor unerwünschten E-Mails. http://www.msn.de/antispam/prevention/junkmailfilter Jetzt Hotmail-Junk-Filter aktivieren! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
JSP whitespace removal
Hi We want to achieve a 10-15% data reduction of the HTML being served by our webserver (generated by JSP pages). This will have an impact on our bandwidth charges from our ISP... We can achieve this by by simply removing all the \n\r, \t characters and replacing repeated occurences of(double space) by (single space). But we don't want to do this in our source JSP files as they will become unmaintainable/unreadable. eg table tr tdColumn 1/td tdColumn 2/td tr /table (69 characters) becomes tabletrtdColumn 1/tdtdColumn 2/tdtr/table (57 characters), that's an 17% saving for that text block... I know that we could: i) write/implement a filter to process the outputstream - BUT we use OSCache (www.opensymphony.com) to cache (included) JSP pages, and we don't want to reprocess cached data using another filter. ii) use a script to transform or preprocess our JSP pages before they are deployed - simple, but may have code breaking (between dev and live system) or maintenance implications? iii) create a tag library to process a text block (or another JSP), BUT we've heard a rumour that taglibs can be inefficient (is that true?) Question: is it possible to use a directive in a JSP page to force the compiler to remove these characters to achieve our desired data reduction? Are there any other techniques or solutions that anyone else is using? Thanks John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: JSP whitespace removal
Peter Lin said: have you tried turning gzip compression? that should produce similar bandwidth savings to stripping out extra carraige returns and double spaces. We running Apache 1.3.x + JK + TC 5.0.x What's better the gzip valve/filter in Tomcat, or try doing the compression with an Apache module (if that's even possible for JSP rendered pages)? Also, is there a threshold below which the penalty for processing the compression outweighs the data payload reductuion? We want to be low bandwidth + responsive... you could always use the jasper plugin architecture to strip out excess stuff Is there a link to some docs for this? Thanks John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: JSP whitespace removal
Steffen Heil said: I cannot help you on this, but you should realise, that if you archive to reduce you jsps output by 10%, this will affect you traffic only by about 2%. We do have a server, which generated (according to access_log_*) 2.183.339.056 byte in 261.018 requests. But out provider counted about 9GB of traffic. [Actually he is accounting on switch port level and therefor including even ARP-requests, but anyway a lot of this traffic is based on out tomcat server.] That's a good point - we're also charged at the switch port level! We have a traffic shaper so we can control the amount of bandwidth (Mbit/sec) we use for outbound traffic, and we're trying to cram as much data per second as we can within our (managed/shaped) limit. In fact it seems that (gzip) compression is a better strategy for HTML/CSS pages because it offers compression of 80%. But it's still better to compress the pages after you strip the whitespace for a small final text size. Unfortunately we also have a lot of graphics (but at least once they are cached by the browser) then we only have to deal with a HEAD request to see if they have been updated... Thanks for the feedback. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
TC 5.0.18 RequestDespatcher bug?
I think that there may be a bug in TC 5.0.18 when issuing a RequestDespatcher.forward with an URL that has the jsessionid encoded in the URL. My setup is RH 8, JDK 1.4.2_03 + Apache 1.3.29 + mod_jk + TC 5.0.18. I have a servlet (mapped in web.xml to /home/*) which catches all URLs starting with /home/. The servlet looks at the URL to work out which JSP page to render by forwarding to it. The service method code is as follows: String fwdURL = /en/home/welcome.jsp; //create the request dispatcher (for the new URL) RequestDispatcher rqdD = request.getRequestDispatcher(response.encodeURL(fwdURL)); //and forward the request rqdD.forward(request, response); Here is the error produced by TC HTTP Status 404 - /en/home/welcome.jsp;jsessionid=35CC14009BCF7CCED835634586378F46 type Status report message /en/home/welcome.jsp;jsessionid=35CC14009BCF7CCED835634586378F46 description The requested resource (/en/home/welcome.jsp;jsessionid=35CC14009BCF7CCED835634586378F46) is not available. Apache Tomcat/5.0.18 Is this a bug, or am I doing something wrong. Maybe I should not be encoding the forwarded URL. The bug manifests itself when switching from an SSL to a non-SSL connection, or when cookies are turned off. Thanks for any help. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: TC 5.0.18 RequestDespatcher bug?
Tim Funk said: Without digging, I can't say if its a bug. BUT... There is no need to encode the URL if the action is a RequestDispatcher.forward(). Only one session may be associated with the live of a single request so once the session is there in the request, its there no matter how many times in the same request you do a RequestDispatcher.forward(). Encoding the URL is only needed for sending redirects back to the client or for links on pages. Thanks for the clarification - I'll remove the call to URLEncode for these situations. Might still be a bug though... ;) John - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Session Tracking Question
I have a webapp in which a servlet will redirect to another remote webserver URL which will then redirect back to my webserver after completing its request. me.com/ServletA --- remote.com/someURL --- me.com/ServletB I need to be able to re-attach to the original session that the user had before (in servletA) after returning from the remote site to my URL me.com/ServletB. Do I need to do anything special or can I rely on the jsessionid which is recorded in the cookie for me.com to be automatically picked up when ServletB is invoked again? Or will ServletB create a new session? If cookies are switched off, what info do I need to pass to the remote server (which can POST back anything that I POST to it). Does someone have some sample code for ServletA and ServletB that allows it to identify the original session, and re-attach to it? I'm sorry if I'm asking a dumb question, but I've been checking on the net for some answers but I don't seem to be making much progress. I'm currently using Tomcat 5.0.16 Thanks for any help. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Replication question
Hi For replication purposes (2 or more tcs in a cluster), how do you let the sessionlistener know to re-replicate your session after you make a change to a property of an object which is bound to the session, but where the session attribute + object iself remains unchanged? For example, if I bind a (lightweight and serializable) class to the session and change one of its properties, how do I notify Tomcat that I want the session replicated again. Probably as far as TC and the replication code is concerned it doesn't need to do anything because no attribute changes are recorded. Do I just call session.setAttribute(MyObject, myObject) again (where the myObject reference is the same as before), or do I have to remove and then re-add the attribute? Or is there something that I have missed? Also, if you add many attributes during a single servlet call, is the replication buffered and delayed until the servlet sends its response, or is the replication attempted each time the session's attributes are changed? When does anyone think that the recent replication fixes will make it into the next official release? Thanks for any info. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Replication question
Thanks Filip Perhaps you could help me clear up a little confusion. 1) If useDirtyFlag=false then the session is replicated EVERY time the servlet container processes a request which has a session. If in 10 requests for one user, a session attribute is modified in one of the requests only, then 10 replication attempts would have been attempted although only one was really needed. 2) If useDirtyFlag=true, what other calls cause replication? Hopefully not session.getAttribute() :) Thanks for your help. John Filip Hanik said: Do I just call session.setAttribute(MyObject, myObject) YES, that will take care of it. if you do set the property useDirtyFlag=false your session will be replicated on each request, not good for performance but it takes care of code like this Map map = session.getAttribute(map); map.put(name,value); return; in this case, the session replication code doesn't know that anything changed, hence you don't want to use the dirty flag the useDirtyFlag=true replicates the session when setAttribute,removeAttribute and some other methods are called Filip -Original Message- From: John Sidney-Woollett [mailto:[EMAIL PROTECTED] Sent: Monday, January 12, 2004 9:35 AM To: [EMAIL PROTECTED] Subject: Replication question Hi For replication purposes (2 or more tcs in a cluster), how do you let the sessionlistener know to re-replicate your session after you make a change to a property of an object which is bound to the session, but where the session attribute + object iself remains unchanged? For example, if I bind a (lightweight and serializable) class to the session and change one of its properties, how do I notify Tomcat that I want the session replicated again. Probably as far as TC and the replication code is concerned it doesn't need to do anything because no attribute changes are recorded. Do I just call session.setAttribute(MyObject, myObject) again (where the myObject reference is the same as before), or do I have to remove and then re-add the attribute? Or is there something that I have missed? Also, if you add many attributes during a single servlet call, is the replication buffered and delayed until the servlet sends its response, or is the replication attempted each time the session's attributes are changed? When does anyone think that the recent replication fixes will make it into the next official release? Thanks for any info. John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat 5 and oracle
Try using the thin driver - it's jar file is classes12.jar Place it in [TOMCAT_HOME]/common/lib John Sidney-Woollett Jonathan Drnek said: I am having a problem setting up a data source in tomcat. I seem to remember having this problem last time I played with it several moths ago but I don't remember what I did to fix it. I am running Tomcat 5.0.16 with JVM version 1.4.2_03-b02 on windows 2000. I am trying to connect to an Oracle 8.1.7.1.0 database. I have placed the ojdbc14.jar file in common\lib The error I am getting is javax.servlet.ServletException: Cannot create JDBC driver of class '' for connect URL 'null', cause: No suitable driver I am using oracle.jdbc.driver.OracleDriver because that's what the docs said, but I seem to recall that was not correct. I just can't find anything that tells me what other driver I should be using. My server.xml file has . . . Resource name=jdbc/ordt type=javax.sql.DataSource/ . . . /ResourceParams ResourceParams name=jdbc/ordt parameter namevalidationQuery/name valueselect * from dual/value /parameter parameter nameurl/name valuejdbc:oracle:thin:@holl302h:1521:ORDT/value /parameter parameter namepassword/name valuepassword/value /parameter parameter namemaxActive/name value4/value /parameter parameter namemaxWait/name value5000/value /parameter parameter namedriverClassName/name valueoracle.jdbc.driver.OracleDriver/value /parameter parameter nameusername/name valueusername/value /parameter parameter namemaxIdle/name value2/value /parameter /ResourceParams . . . web.xml looks like ?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-nameMetrology Lab/display-name description First Source Metrology Lab /description resource-ref descriptionOracle Datasource example/description res-ref-namejdbc/ordt/res-ref-name res-typejavax.sql.DataSource/res-type res-authContainer/res-auth /resource-ref /web-app my code looks like Context initContext = new InitialContext(); Context envContext (Context)initContext.lookup(java:/comp/env); DataSource ds = (DataSource)envContext.lookup(jdbc/ordt); Connection conn = ds.getConnection(); Thanks for any help, Jon Drnek - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: directory reference
Why not use a Properties file which you can get the class loader to locate for you using call similar to: properties.load(Thread.currentThread().getContextClassLoader().getResourceAsStream(/myfile.properties)); Just place the file at the root level of your (web project) source tree, so that it is copied either to WEB-INF/classes or built into a jar file placed in WEB-INF/lib when your app is deployed. Make sure that the path to the file matches the directory (or package folder) that you place the properties file in. This technique works fine with Tomcat, or with a regular java app. John Sidney-Woollett Giorgio Franceschetti said: Hi all, I'd like to create a file with some configuration details for my application. I tryed to reference my file like this ./data.txt and I found it in my tomcat/bin directory. Well, I should have expected this, quite like any other java application points to the executable directory. Is there any way to point to my application directory? Should I assume a fixed path like tomcat/webapps/myapp? Thanks in advance, Giorgio - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: JSP Editors
Take a look at Eclipse (www.eclipse.org) [FREE] combined with MyEclipse (www.myeclipseide.com) [$29.95]. Having used many IDE's, standalone editors etc, I can positively state that this IDE will save you LOADS of time, blood sweat and tears. It is fast, feature packed, written in java, and allows you to develop and debug web projects easily. It supports virtually all the common J2EE servers (including Tomcat 4 and 5). It runs on Windows, Linux and Mac OS X. It features tight cvs integration too. It rocks. I hear IDEA is a good IDE, and I have used CodeGuide (also good) but I switched to Eclipse after trying it out. If you have time to experiment, try Eclipse - you won't believe how good it is. John Sidney-Woollett ps I'm not in any way affiliated to Eclipse or MyEclipse! Duncan said: Sorry if off topic but... What do people use to edit JSPs? I'm after an editor, free if possible, to run on windows, with syntax colouring and possibly auto complete for java. Have tried vim for windows, but it doesn't seem as nice on windows as it is on linux. Any other suggestions? Cheers Duncan Smith Decker Telecom Ltd - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to stop the URL comming up?
Try creating a servlet which maps to a bookmark-able URL. Then have the servlet use the RequestDispatcher to forward the request which will generate the page (a JSP usually). The forwarded page is generated in the same request, and the URL won't change. Using this technique you can have the servlet called one of many JSP pages to render different pages according to session info, request paremeters or cookie information. eg //create the request dispatcher (for the new URL) RequestDispatcher rqdD = request.getRequestDispatcher(response.encodeURL(inclPage)); //and forward the request rqdD.forward(request, response); The beauty of this technique is that your servlet can handle all business logic, generate beans etc, and place them into the request (attributes), and the jsp page(s) only need concern themselves with presentation. Hope this helps. John Sidney-Woollett Andoni said: Hello, I am looking for a way to stop my users bookmarking pages in the site. There is a login screen and they shouldn't even really be let bookmark this. I was given someone's card today an then I went to his site: http://www.xeotrope.net and when I find that as I look around the site the url in the URL bar of my browser stays at http://www.xeotrope.net and never includes the page name. This means that all bookmarks only bring up the main page. Is there any way to do this with apache / Tocmat? Thanks. Andoni. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Invalid Number error when regional setting set to English (Canada )
If you're saving numeric data back to an Oracle (or any) database, then consider using binding native java data types instead of passing strings in your update/insert statements or calls to stored procs. For example, instead of: String qry = update CUSTOMER set TOTAL_INVOICED = + numValStr + where CUSTOMER_ID = + custIDStr; Statement stmnt = conn.createStatement(); stmnt.executeUpdate(qry); Try using the following: Double invoiced = Double.parseDouble(numValStr); int custID = Integer.parseInt(custIDStr); String qry = update CUSTOMER set TOTAL_INVOICED = ? where CUSTOMER_ID ?; PreparedStatement ps = conn.prepareStatement(qry); ps.setDouble(1, invoiced); ps.setInt(2, custID); ps.executeUpdate(); You will be able to perform better checking because you are being forced to convert the data from strings prior to inserting/updating the records, and handle any errors, and you will see a performance gain using the preparedstatement because Oracle will compile the statement once, and re-use it without re-compiling it when it is used again (even when the parameters have different values). Hope that helps. John Lisa Wong said: I have a Java/struts app running on a Windows box. If the box has the regional setting set to English (Canada), I am unable to save decimal numbers as somewhere along the way, it changes the decimal to a comma. I've run the package by itself on the box and it works fine, but through the app I get an ORA-017222 Invalid Number. If I do a select via the app, I can actually see the decimal replaced by a comma on the screen. It's fine if set to English (US) and most of the other English settings. Has anyone experienced something like this? Any suggestions would be helpful. thx, Lisa Wong - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problems following symlinks
John In Tomcat 4.1.* you need to add the following attribute to your Resources entry within the context entry in conf/server.xml to allow symlinks. For example: !-- Tomcat Root Context -- Context path= docBase=/apps/tomcat debug=0 Resources className=org.apache.naming.resources.FileDirContext allowLinking=true docBase=/apps/tomcat / /Context This works for me on Solaris. The /apps/tomcat directory is not within the tomcat web root (for the root context example above). John Sidney-Woollett John Prout said: Using Tomcat, I am not able to open a JSP page, when the page is a symlink to another file. When I replace the symlink with the file, everything works fine. Googling around, I've found some mention of Tomcat not following symlinks by default, but that there's an attribute allowLinking to over-ride this behavior, but I haven't been able to find where to put this. Does anyone know a fix to this problem? I am running Tomcat 4.1.? embedded in JBoss 3.2.2, running on Redhat Linux 9.0 Thanks in advance John - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
TC 4.1.27 Bug? Redirect / - /index.jsp with jsessionid
I hope that this is the right list to post this to. If not, apologies. I'm having a problem with session information getting lost when Tomcat redirects from a request to a folder, to the underlying resource (eg ../folder/index.jsp) when URLs are encoded with the session ID. This might be a problem for sites that are encoding all URLs (using response.encodeURL() and response.encodeRedirectURL()) when the browser has cookies turned off, or the browser doesn't support cookies. Here is an example of what happens: Servlet redirects to /folder1/ using the following code: String page = response.encodeRedirectURL(/folder1/); response.sendRedirect(page); OR jsp page provides a link to /folder1/ by rewriting the URL a href=c:url value='/folder1/'Folder 1/a When tomcat receives the request for /folder1/, it *appears* to redirect to /folder1/index.jsp, but DOES NOT rewrite the URL. When you end up in the /folder1/index.jsp page, the original session is lost. I know that a work-around is to specify the resource (ie index.jsp) rather than the enclosing folder, but this may not be suitable in all cases. Does this seem like a bug, and is anyone else able to confirm it? Thanks John Sidney-Woollett - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
