[opencms-dev] CmsUser as a session variable

[Ben Rometsch]

Hi,

I have the following in a jsp page (it's the execution part of a user login
form):

----------

<%@ page import="java.util.*,
                 com.opencms.flex.jsp.*,
                 com.opencms.file.*,
                 com.opencms.file.CmsUser" %>

<%
  if (request.getParameter("login") != null) {

    CmsJspActionElement cms = new CmsJspActionElement(pageContext, request,
response);
    CmsObject cmso = cms.getCmsObject();

    String username = request.getParameter("username");
    String password = request.getParameter("password");
    
    try { 
      CmsUser webUser = cmso.readUser(username,password);
      out.println("You are now logged in as " + username);
    } catch (Exception ex) {
      out.println("Error logging in");
    }
  }
%>

-----------

This is working fine. The problem I have is that I want to make the webUser
instance session scoped. If I add the following underneath the page import:

<jsp:useBean id="webUser" class="com.opencms.file.CmsUser" scope="session"/>

And change the line:

CmsUser webUser = cmso.readUser(username,password);

To 

webUser = cmso.readUser(username,password);

I get an error:


javax.servlet.ServletException: Resource loader error in file
'/RGLIntranet/login.jsp'

Root cause:
org.apache.jasper.JasperException
	at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2
54)
	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.ApplicationDispatcher.invoke(ApplicationDispatcher.
java:684)
	at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatch
er.java:575)
	at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher
.java:498)
	at
com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispat
cher.java:180)
	at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:955)
	at
com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispat
cher.java:268)
	at com.opencms.flex.CmsJspLoader.load(CmsJspLoader.java:567)
	at com.opencms.flex.CmsJspLoader.initlaunch(CmsJspLoader.java:235)
	at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
	at
com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:310)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
	at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:256)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:191)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
	at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
	at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:171)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
	at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172
)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:174)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.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(Http11Processor.java:601)
	at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:392)
	at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
	at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:619)
	at java.lang.Thread.run(Thread.java:534)

--------------- End of root cause.

	at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:962)
	at
com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispat
cher.java:268)
	at com.opencms.flex.CmsJspLoader.load(CmsJspLoader.java:567)
	at com.opencms.flex.CmsJspLoader.initlaunch(CmsJspLoader.java:235)
	at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
	at
com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:310)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
	at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:256)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:191)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
	at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
	at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:171)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
	at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172
)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:641)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:174)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext(StandardPipeline.java:643)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.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(Http11Processor.java:601)
	at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:392)
	at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
	at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:619)
	at java.lang.Thread.run(Thread.java:534)



Does anyone know why this would be?