----- Original Message ----- From: "Gerry Scheetz" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, January 17, 2002 12:26 PM Subject: Multiple instances of a servlet with Tomcat
> I was wondering if it is possible to have the same servlet running twice = > under a single instance of Tomcat. > > I am running Tomcat 3.2, but could upgrade to Tomcat 4.0. > > What I want to do is be able to access 2 different databases through the = > same servlet code. So http://localhost/ProdApp would run against a = > production database and http://localhost/TestApp would run against a test = > database. My database connection information is stored in the web.xml = > file and I assume if this is possible the web.xml file is what I need to = > manipulate. I just don't want to spend hours working on this if it is not = > possible. > > Thanks, > Gerry >[...] I think normally it is possible, in the following: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html (there are other HOW-TO in:) http://jakarta.apache.org/tomcat/tomcat-4.0-doc/index.html you can find a "classloader map", different wabapp will have different classloader(webapp-classloader), so normally, if you put 2 copies of YourServlet in WEB-INF/classes of differebt webapp, they will be treated as different Servlet-classes. but if you have some "cross-webapp" object, and you put a reference of YourServlet inside such object, or you use "Serializable/Externalizable" property of YourServlet, perhaps you need to be careful to avoid ClassCastException or other. Bo Jan.17, 2002 ___________________________________________________________________________ To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff SERVLET-INTEREST". Archives: http://archives.java.sun.com/archives/servlet-interest.html Resources: http://java.sun.com/products/servlet/external-resources.html LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
