put your shared class in /common/lib and each webapp will be able to see it.
Charlie > -----Original Message----- > From: RANDAD,KAILASH (HP-PaloAlto,ex1) [mailto:[EMAIL PROTECTED] > Sent: Tuesday, July 08, 2003 3:17 PM > To: 'Tomcat Users List' > Subject: RE: sharing objects betweeen different contexts (Long) > > > Hi > Different web applications will get loaded from different > class loader, so > you are getting this exception. > Regards > KP > > -----Original Message----- > From: laurent marot [mailto:[EMAIL PROTECTED] > Sent: Tuesday, July 08, 2003 12:12 PM > To: Tomcat Users List > Subject: sharing objects betweeen different contexts (Long) > > > Hi all,I'm trying to create an object in a Jsp page in an > application named > AppA and get it back in another page in AppB.When i made a test with > String="my data to share" everything works properly but when > i try to create > a User Objets (simple java class in MyPackage package) i get a Cast > Exception in the receiver page.any idea to solve this problemThanks a > lot.Platform : tomcat 4.1.24 on windows2000 with JDK > 1.4.1/AppA/contextAUser.jsp page :<%@ page > import="java.util.*, myPackage.*" > %><% out.println(session.getId());String sessionid = > session.getId();String > datas="my datas to share";User user = new User("myName", "myRole"); > ServletContext context=session.getServletContext();Hashtable > shareddata = > (Hashtable)context.getAttribute("user");if (shareddata==null) > shareddata = > new Hashtable();//shareddata.put(sessionid, > datas);shareddata.put(sessionid, > user);context.setAttribute("user", shareddata);%><BR><a > href="/AppB/contextBUser.jsp?jsessionid=<%=session.getId()%>" > target="blank">Got to B > appplication</a><BR>/AppB/contextBUesr.jsp page :<%@ > page import="java.util.*,myPackage.*"%><% String > ssosessionid=request.getParameter("jsessionid");out.println(se > ssion.getId()) > ;ServletContext context=session.getServletContext();String > SignonContext="/wisd";ServletContext ssocontext = > context.getContext(SignonContext);if (ssocontext==null) > out.println("no > context !");String userroles = null;User user = > null;Hashtable shareddata = > null;shareddata = (Hashtable)ssocontext.getAttribute("user");if > (shareddata!=null) { //userroles = > (String)shareddata.get(ssosessionid); > user = (User)shareddata.get(ssosessionid); > out.println(user.getUserId());}else out.println("no context > !");%>org.apache.jasper.JasperException > at > org.apache.jasper.servlet.JspServletWrapper.service(JspServlet > Wrapper.java:2 > 48) > at > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet > .java:295) > at > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilt > er(Application > FilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli > cationFilterCh > ain.java:193) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardW > rapperValve.ja > va:260) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardC > ontextValve.ja > va:191) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContext.invoke(StandardContex > t.java:2415) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHost > Valve.java:180 > ) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDi > spatcherValve. > java:170) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReport > Valve.java:172 > ) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValv > e.java:509) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEn > gineValve.java > :174) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter. > java:223) > at > org.apache.coyote.http11.Http11Processor.process(Http11Process > or.java:432) > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandle > r.processConne > ction(Http11Protocol.java:386) > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoi > nt.java:534) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run( > ThreadPool.jav > a:530) > at java.lang.Thread.run(Thread.java:536) > > cause mère > > java.lang.ClassCastException > at > org.apache.jsp.contextBUser_jsp._jspService(contextBUser_jsp.java:60) > at > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.jasper.servlet.JspServletWrapper.service(JspServlet > Wrapper.java:2 > 04) > at > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet > .java:295) > at > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilt > er(Application > FilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli > cationFilterCh > ain.java:193) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardW > rapperValve.ja > va:260) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardC > ontextValve.ja > va:191) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContext.invoke(StandardContex > t.java:2415) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHost > Valve.java:180 > ) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDi > spatcherValve. > java:170) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReport > Valve.java:172 > ) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValv > e.java:509) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEn > gineValve.java > :174) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter. > java:223) > at > org.apache.coyote.http11.Http11Processor.process(Http11Process > or.java:432) > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandle > r.processConne > ction(Http11Protocol.java:386) > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoi > nt.java:534) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run( > ThreadPool.jav > a:530) > at java.lang.Thread.run(Thread.java:536) > > > --------------------------------------------------------------------- > 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] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
