Hi Volker,
Am Dienstag, den 26.07.2011, 16:29 +0200 schrieb Volker:
Hello,
my current system configuration is like following:
- FreeBSD 8.2
- apache-2.2.17_2
- mod_jk-ap2-1.2.31_1 Apache2 JK
- tomcat 4.1.36_2
As you said elsewhere in this thread, that you are willing to upgrade to
a newer tomcat as well, I will assume, that you will use tomcat 6 or
even tomcat 7.
- diablo-jdk1.6.0
In order to provide a http tunneling for a chat server I have been
using*tomcat 3.3*, FreeBSD 5.4, Apache 1.3, mod_jk (ajp12 Connector) and
diablo-jre1.5.0 in combination with a certain http tunneling servlet
*without any problems* for several years.
That http tunneling servlet is passed via a chat applet via "<PARAM
NAME='HttpServlet'
VALUE='http://test.Domain.com/servlet/*HttpTunnelingServletdc*'>
The configuration for that system above _*can be found below*_ *=>
Configuration for tomcat 3.3
That looks like you are using the strongly discouraged dispatcher
servlet. That is still available, but disabled by default. And you
should leave it that way.
...
Thanks a lot and best regards
Volker
*
============================================================================
NOT WORKING
Configuration for Tomcat 4.1.36 (FreeBSD 8.2, Apache 2.2.17,
mod_jk-ap2-1.2.31, Diablo JDK 1.6)
**============================================================================
The servlet classes result in:
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes*
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes*/*com/....*
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes/digi/...
I read that as: There are some files and directories under
WEB-INF/classes in your ROOT webapp and that /usr/local/apache-tomcat4.1
is your CATALINA_BASE and probably CATALINA_HOME too.
...
*
httpd.conf
*JkWorkersFile "/usr/local/etc/apache22/workers.properties"
JkLogFile "/usr/local/apache-tomcat4.1/logs/mod_jk.log"
JkShmFile /var/log/jk-runtime-status
JkLogLevel info
Looks OK.
*
workers.properties
*workers.java_home=/usr/local/diablo-jdk1.6.0
workers.tomcat_home=/usr/local/apache-tomcat4.1
Remove both deprecated config options java_home and tomcat_home. They
are not needed anymore.
worker.list=jsp-hostname
worker.jsp-hostname.port=8009
worker.jsp-hostname.host=127.0.0.1
worker.jsp-hostname.type=ajp13
worker.jsp-hostname.lbfactor=1*
**server.xml*
Copy the server.xml from a fresh tomcat download and replace your
port-numbers in there.
<Service name="Tomcat-Standalone">
...
<!-- Tomcat Root Context -->
<Context path="/ROOT" docBase="ROOT" debug="0" reloadable="true"
crossContext="true">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="ROOT-http-tunneling_log." suffix=".txt" timestamp="true"/>
</Context>
<!-- Tomcat Examples Context -->
<Context path="/examples" docBase="examples" debug="1" reloadable="true"
crossContext="true">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="localhost_examples_log." suffix=".txt" timestamp="true"/>
<Ejb name="ejb/EmplRecord" type="Entity"
home="com.wombat.empl.EmployeeRecordHome"
remote="com.wombat.empl.EmployeeRecord"/>
Your context descriptions for ROOT and example would be placed in newly
created files named ROOT.xml and example.xml under
$CATALINA_BASE/conf/Catalina/localhost. But I seriously doubt, that you
need example.xml and ROOT.xml is not needed, if all you want to achieve
is logging. Look at http://tomcat.apache.org/tomcat-7.0-doc/logging.html
for more info about simple logging.
*web.xml*
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd";>
You could update your webapp to a newer version by replacing the above
values, but they should do no harm.
<web-app>
<servlet>
<servlet-name>
HttpTunnelingServletdc
</servlet-name>
<servlet-class>
*com.diginet.digichat.util.tunnel3.HttpTunnelingServlet*
</servlet-class>
<init-param>
<param-name>Host</param-name>
<param-value>localhost</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpTunnelingServletdc</servlet-name>
<url-pattern>/HttpTunnelingServletdc</url-pattern>
</servlet-mapping>
Instead of mapping a not configured servlet named invoker to /servlet/*
you should map your servlet named HttpTunnelingServletdc
to /servlet/HttpTunnelingServletdc or alternatively change your applet
configuration from top of your post.
So remove
<servlet-mapping><servlet-name>invoker</servlet-name>...</servlet-mapping>
and change url-pattern in the<servlet-mapping>
from /HttpTunnelingServletdc to /servlet/HttpTunnelingServletdc
</web-app>
...
*description* _The server encountered an internal error () that
prevented it from fulfilling this request._
*exception*
javax.servlet.ServletException
at
com.diginet.digichat.util.tunnel3.HttpTunnelingServlet.doGet([DashoPro-V1.3BETA-091199])
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
...
at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:619)
*root cause*
java.lang.NullPointerException
at
com.diginet.digichat.util.tunnel3.HttpTunnelingServlet.doGet([DashoPro-V1.3BETA-091199])
Hopefully you have the source code for HttpTunnelingServlet since this
line means, your servlet gets invoked, but it is not happy to work :)
That might come from the fact, that you configured the servlet
HttpTunnelingServletdc, but used the invoker-servlet. Chances are, that
the proposed configuration chages in web.xml fix this.
HTH
Felix
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:145)
...
------------------------------------------------------------------------
Apache Tomcat/4.1.3
===================================================================================
*WORKING
Configuration for tomcat 3.3 (FreeBSD 5.4, Apache 1.3.41, Tomcat 3.3.2,
mod_jk 1.2.15, Diablo JRE 1.5)
**============================================================================*
*
SERVER.XML
* (jakarta-tomcat3.3/conf)
<Ajp12Connector port="8007" />
*web.xml*
(/jakarta-tomcat3.3/webapps/ROOT/WEB-INF)
<?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>
<servlet>
<servlet-name>
HttpTunnelingServletdc
</servlet-name>
<servlet-class>
com.diginet.digichat.util.tunnel3.HttpTunnelingServlet
</servlet-class>
<init-param>
<param-name>Host</param-name>
<param-value>localhost</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HttpTunnelingServlet</servlet-name>
<url-pattern>/HttpTunnelingServlet</url-pattern>
</servlet-mapping>
</web-app>
*workers.properties*
worker.ajp12.type=ajp12
worker.ajp12.port=8007
worker.ajp12.host=localhost
worker.ajp12.lbfactor=1
*mod_jk.conf*
<IfModule !mod_jk.c>
LoadModule jk_module /usr/local/libexec/apache/mod_jk.so
</IfModule>
JkWorkersFile "/usr/local/jakarta-tomcat3.3/conf/jk/workers.properties"
JkLogFile "/usr/local/jakarta-tomcat3.3/logs/mod_jk.log"
JkShmFile /var/log/jk-runtime-status
JkLogLevel info
JkMount /servlet/* ajp12
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