the flow in your action. BTW did you actually put anything(like hello world) in Welcome.jsp ?
Caroline Jen wrote:
Which resource file needs to be updated? I have
checked the application.properties. Nothing in that
file is relevant to my problem.
--- Abhijeet Mahalkar
<[EMAIL PROTECTED]> wrote:
http://localhost:8080/LogonPractice/Logon.do;jsessionid=170B50E4D8E07EE36290E98342E8BF9Chave u updated the Resource files... ? abhijeet
----- Original Message ----- From: "Caroline Jen" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, September 30, 2003 9:45 AM
Subject: No Error Message But A Blank Page Is
Displayed.
I am experimenting a basic application - logon. I
got
the first two screens working without problem. However, the third screen displays a blank page (no
error message). I am having a very difficult time
to
figure out the problem; henceforth, seeking help. Here is the history of my application:
1. http://localhost:8080/LogonPractice/index.jsp (no problem and I clicked on "Sign in") 2.
(no problem and the screen asked for username and(UserDirectory.getInstance().isValidPassword(username,password));
password. I filled out the information and clicked
on
"Submit") 3.
http://localhost:8080/LogonPractice/LogonSubmit.do
(displayed a blank page)
The Tomcat log file shows the following (no error message at all):
2003-09-29 23:29:26 action: Processing a GET for /Logon 2003-09-29 23:29:26 action: Looking for Action instance for class org.apache.struts.actions.ForwardAction 2003-09-29 23:29:26 action: Double checking for Action instance already there 2003-09-29 23:29:26 action: Creating new Action instance 2003-09-29 23:29:35 action: Processing a POST for /LogonSubmit 2003-09-29 23:29:35 action: Looking for ActionForm bean under attribute 'logonForm' 2003-09-29 23:29:35 action: Creating new ActionForm instance of class 'org.apache.artimus.logon.LogonForm' 2003-09-29 23:29:35 action: Storing instance under attribute 'logonForm' in scope 'request' 2003-09-29 23:29:35 action: Populating bean properties from this request 2003-09-29 23:29:35 action: Validating input form properties 2003-09-29 23:29:35 action: No errors detected, accepting input 2003-09-29 23:29:35 action: Looking for Action instance for class org.apache.artimus.logon.LogonAction 2003-09-29 23:29:35 action: Double checking for Action instance already there 2003-09-29 23:29:35 action: Creating new Action instance
in my struts-config.xml, I have:
<action path="/LogonSubmit"
type="org.apache.artimus.logon.LogonAction"
name="logonForm" scope="request"
validate="true"
input="/signin/Logon.jsp">
<forward
name="valid"
path="/signin/Welcome.jsp"/>
</action>
and my LogonAction.java is:
package org.apache.artimus.logon;
import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionError; import org.apache.struts.action.ActionErrors; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.ActionServlet;
import org.apache.artimus.lang.Constants;
public final class LogonAction extends Action {
public boolean isUserLogon(String username, String password) throws UserDirectoryException {
return
// return true;ApplicationRoot/WEB-INF/classes/org/apache/artimus/lang
}
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
// Obtain username and password from web tier String username = ((LogonForm) form).getUsername(); String password = ((LogonForm) form).getPassword();
// Validate credentials with business tier boolean validated = false; try {
validated = isUserLogon(username,password); }
catch (UserDirectoryException ude) { // couldn't connect to user directory ActionErrors errors = new ActionErrors(); errors.add(ActionErrors.GLOBAL_ERROR, new ActionError("error.logon.connect")); saveErrors(request,errors); // return to input page return (new ActionForward(mapping.getInput())); }
if (!validated) { // credentials don't match ActionErrors errors = new ActionErrors(); errors.add(ActionErrors.GLOBAL_ERROR, new ActionError("error.logon.invalid")); saveErrors(request,errors); // return to input page return (new ActionForward(mapping.getInput())); }
// Save our logged-in user in the session, // because we use it again later. HttpSession session = request.getSession(); session.setAttribute(Constants.USER_KEY, form);
// Log this event, if appropriate if (servlet.getDebug() >= Constants.DEBUG) { StringBuffer message = new StringBuffer("LogonAction: User '"); message.append(username); message.append("' logged on in session "); message.append(session.getId()); servlet.log(message.toString()); }
// Return success return (mapping.findForward(Constants.VALID));
}
} // End LogonAction
The Constants.class is in the
directory. And I have public static final String VALID = "valid";=== message truncated ===
My Welcome.jsp in the ApplicationRoot/signin folder looks like:
<%@ taglib uri="/tags/struts-bean" prefix="bean" %> <%@ taglib uri="/tags/struts-html" prefix="html" %> <%@ taglib uri="/tags/struts-logic" prefix="logic" %> <HTML>
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