Do you have any mappings for your servlet in a web.xml?
I have always mapped my servlets in my web.xml, then made a JkMount the
same as that mapping
i.e.
<?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>admincontrol</servlet-name>
<servlet-class>com.bla.servlet.AdminServlet</servlet-class>
<load-on-startup>4</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>admincontrol</servlet-name>
<url-pattern>/admincontrol/*</url-pattern>
</servlet-mapping>
</web-app>
then in httpd.conf
JkMount /*.jsp local
JkMount /webappname/* local
JkMount /admincontrol/* local
then when accessing through these mappings, the session is the same session
The problem is, if you don't have some kind of mapping in apache to
match a webapp class in tomcat
apache will access the jsp though a session at "/"
and the webapp servlet at /servlet or whatever so you have 2 different
sessions
Doing it the way I described, then accessing through the
/webappname/main.jsp where the action of the form is
/webappname/admincontrol insures using the same session.
Now, there may be better ways of doing this as the support persons at
tomcat would know better than me, but this works for me.
The thing is (I believe this to be true) that if you don't create the
correct mappings for both servers, you can get 2 different sessions as
you have 2 different servers. After all, a session is a connection
between a client and a server.
[EMAIL PROTECTED] wrote:
Greetings:
I am looking for help with an issue that I cannot find the answer to on the
web or list-archives. My issue is this:
I use Tomcat 5.5 and jdk 1.5 on linux.
1)I have a custom jsp tag that puts string data in a Session attribute when
the jsp page loads (via pageRequest.getSession().setAttribute("var",value).
2)The jsp page is a form that submits to data to a servlet. The servlet
retrieves the data request.getSession().getAttribute("var") to compare it
with data from another form field.
Under normal deployement with tomcat running on port 8080 and the app at
context /myapp (http://localhost:8080/myapp) the servlet is able to
retrieve the "var" out of the session and read it.
The problem-issue is when I setup the apache/tomcat proxy (http not
modjk).
When I access the application with Apache on port 80 through the proxy on
port 8082 (http://myhost.localhost/myapp), the
request.getSession().getAttribute("var") within the servlet returns null.
When I access the application throgh the proxied port
(http://myhost.localhost:8082/myapp) the session attribute is not null.
Also, when I access the application through port 80, the Tomcat manager
webapp reports double the amount of sessions being created.
Here is the connector setting in sever.xml
<Connector port="8082"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" acceptCount="100"
connectionTimeout="20000"
proxyPort="80" disableUploadTimeout="true" />
Here is the host setting in server.xml
<Host name="myhost.localhost" appBase="myhost" unpackWARs="true"
autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
<Alias>myhost.localhost.org</Alias>
<Context path="" docBase="/usr/local/tomcat/myhost" />
<Context path="/manager" debug="0" privileged="true"
docBase="${catalina.home}/server/webapps/manager" />
</Host>
Here is the apache virtual host proxy configuration:
<VirtualHost *:80>
ServerName myhost.localhost
DocumentRoot /usr/local/tomcat/myhost
Options Indexes
ProxyPass / http://myhost.localhost:8082/myhost/
ProxyPassReverse / http://myhost.localhost:8082/myhost/
</VirtualHost>
Does anyone know what is going on here? any help is greatly appreciated.
Thanks.
Bill
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Web Services
Developer
[EMAIL PROTECTED]
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