Jim, I believe getRemoteUser is a HttpServletRequest method that only returns an object if the user is logged in. How would they log in? Using container based security. Basic info is on the Strut site:
http://struts.apache.org/userGuide/preface.html#jaas For more details on this path, try googling. One particular (of many) brief overview is at: http://www.cafesoft.com/products/cams/tomcat-security.html Also, using the role attributes won't work unless you are logged in that way (the container way). This affects isUserInRole(), getPrincipal, getRemoteUser(), etc. Regards, David -----Original Message----- From: Jim Douglas [mailto:[EMAIL PROTECTED] Sent: Thursday, December 16, 2004 9:44 PM To: [EMAIL PROTECTED] Subject: RE: Mapping issue David , Echo is good...as it turned out this line was returning null, String userName = ((LogonForm) form).getUsername(); I'm new to java and Tomcat/Struts so I'm strugglig with where to put the users info once they have successfully logged on.(Logon is just a query to a database to find unername and password) I guess the LogonForm object is inaccessable once the LogonAction finishes up. I thought setting attributes was best, is that the case? Jim barrows on this list suggested I do this, String x = request.getRemoteUser(); ...but it also returns null from an ActionForward -Jim >From: "David G. Friedman" <[EMAIL PROTECTED]> >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> >Subject: RE: Mapping issue >Date: Thu, 16 Dec 2004 19:59:33 -0500 > >Jim, > >Since your JSP thinks something is null, have you tried putting something >like the below code in your RetrieveFormAction.execute() method before you >do your request.setAttribute(...) call? > >if ( result == null ) { > System.out.println("Result set is NULL!"); >} else { > System.out.println("Result has " + result.size() + " items."); >} > >OR, in your JSP, have you added similar code to the below? > ><% > ArrayList forms = (ArrayList)request.getAttribute("forms"); > if ( forms == null ) { > out.println("I am a null form, help!"); > } else { > out.println("Forms exists, let's see the data.<br />"); > Iterator it = forms.iterator(); > > while(it.hasNext()) { > out.print("<br>try " + it.next()); > } > } >%> > >I'm big on echo printing where debugging null pointers are concerned. :) > >Regards, >David > >-----Original Message----- >From: Jim Douglas [mailto:[EMAIL PROTECTED] >Sent: Wednesday, December 15, 2004 11:26 PM >To: [EMAIL PROTECTED] >Subject: RE: Mapping issue > > >David, > >Yes, struts-conf is in WEB-INF, > >Here's the application error log, apparently it's finding the for.jsp >before >crashing, > >DEBUG - insert page='/portal/forms.jsp'. >DEBUG - servletPath=/portal/forms.jsp, pathInfo=null, queryString=null, >name=null >DEBUG - Path Based Include >INFO - default: DefaultServlet.serveResource: Serving resource >'/images/id_nav_outside.gif' headers and data >INFO - default: DefaultServlet.serveResource: Serving resource >'/images/id_nav_bkgnd.gif' headers and data >ERROR - Servlet.service() for servlet jsp threw exception >java.lang.NullPointerException > at >org.apache.jsp.portal.forms_jsp._jspService(org.apache.jsp.portal.forms_jsp : >52) > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:99) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > at >org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java: 3 >25) > > >This is forms.jsp, > ><%@ page import="java.util.*" %> > ><html> ><body> ><h1 align="center">Forms Listing</h1> ><p> > ><% > ArrayList forms = (ArrayList)request.getAttribute("forms"); > Iterator it = forms.iterator(); > > while(it.hasNext()) { > out.print("<br>try " + it.next()); > } > >%> ></body> ></html> > > >...and this is the code that sets the "forms attribute, > >public final class RetrieveFormAction extends Action { > > private final static Logger log = >Logger.getLogger(RetrieveFormAction.class); > String sTemp =""; > > public ActionForward execute(ActionMapping mapping, > ActionForm form, HttpServletRequest >request, > HttpServletResponse response) > //throws IOException, ServletException { > throws Exception { > ArrayList forms = new ArrayList(); > > String userName = ((LogonForm) form).getUsername(); > > DataSource dataSource = getDataSource(request, "userDB"); > Connection conn = dataSource.getConnection(); > Statement stmt = conn.createStatement(); > > String query = "SELECT * FROM users"; > > log.info("query = " + query); > ResultSet rs = stmt.executeQuery(query); > > Boolean validate = false; > while (rs.next()) { > sTemp = rs.getString(1); > forms.add(sTemp); } > rs.close(); > rs = null; > > ArrayList result = forms; > request.setAttribute("forms", result); > return mapping.findForward("show_forms"); > > } >} > >Thanks, >Jim > > >From: "David G. Friedman" <[EMAIL PROTECTED]> > >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > >To: "Struts Users Mailing List" <[EMAIL PROTECTED]> > >Subject: RE: Mapping issue > >Date: Wed, 15 Dec 2004 19:31:14 -0500 > > > >Have you checked your application server's log files to see if there were > >any Struts startup errors? Where are you putting the "struts-conf" file? > >Are you putting it in the file "/WEB-INF/struts-config.xml"? > > > >Regards, > >David > > > >-----Original Message----- > >From: Jim Douglas [mailto:[EMAIL PROTECTED] > >Sent: Wednesday, December 15, 2004 7:17 PM > >To: [EMAIL PROTECTED] > >Subject: Mapping issue > > > > > >To all, > > > >This is my error message in the browser, > > > >javax.servlet.ServletException: Cannot retrieve mapping for action > >/SelectUser > > > >The class files are in the right place. This is struts-conf, > > > ><form-beans> > > <form-bean name="ReturnStudentForms" > > type="app.model.FormsSelect" /> > > </form-beans> > > > ><action-mappings> > > > > <action-mappings> > > <action path="/SelectUser" > > type="app.web.RetrieveFormAction" > > name="ReturnStudentForms" scope="request" > > validate="true" input="/portal/user.jsp"> > > <forward name="show_forms" > > path="/portal/forms.jsp" /> > > </action> > > </action-mappings> > > > > > >Thanks, > >Jim > > > > > > > >--------------------------------------------------------------------- > >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] > > >--------------------------------------------------------------------- >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]
