I do not fully understand what you say about null or
"null". Anyway, I did try to write out values in the
FindEditorData.java. What is written out in the
browser is:
name=null; kn=journal_category; kv=null
And the way I try to write out those crucial fields is
shown below:
// package and import statements omitted
public final class FindEditorData extends Bean
{
public Object execute() throws Exception
{
// Obtain username
String username = getUsername();
EditorService service = new EditorService();
String value = service.findEditorData( username );
String property = getKeyName();
if (( null==property ) || ( null==value ))
{
StringBuffer sb = new StringBuffer();
sb.append( "name=" );
sb.append( username );
sb.append( "; kn=" );
sb.append( property );
sb.append( "; kv=" );
sb.append( value );
throw new ParameterException(
sb.toString() );
}
ResultList list = new ResultListBase
(
Access.findByProperty( this,property,value
)
);
list.setLegend( property,value );
return new ProcessResultBase( list );
} // end execute
} // End FindEditorData
--- Richard Yee <[EMAIL PROTECTED]> wrote:
> Caroline,
> In your FindEditorData.java class, is the value for
> your username variable null or "null"? If it is
> null,
> then you are reading the wrong request parameter
> since
> request.getParameter() will return null if the
> parameter doesn't exist. If the String value is
> "null", then you have a problem with getRemoteUser()
> Why don't you dump request parameters that you are
> getting in your FindEditorData?
>
> Hidden input tags work fine.
>
> Regards,
>
> Richard
> --- Caroline Jen <[EMAIL PROTECTED]> wrote:
> > Hi, I think that we are in different time zones.
> >
> > As you have mentioned, I, too, suspected that the
> > statement in my JSP:
> >
> > request.getRemoteUser();
> >
> > returns nothing. Therefore, I did a test in my
> JSP.
> >
> > In addition to request.getRemoteUser(); I created
> > another String manually:
> >
> > <req:isUserInRole role="editor">
> > <%
> > String username = request.getRemoteUser();
> > String userrole = "author";
> > %>
> > <% out.println("The user name is: " + username
> > +".");
> > %>
> > <% out.println("The role is: " + userrole +".");
> %>
> > </req:isUserInRole>
> >
> > And the browser shows:
> >
> > The user name is: Gloria Jen. The role is:
> author.
> >
> > Gloria Jen is the name that I provided while
> logging
> > on and authenticated by the container. Therefore,
> > the
> > request.getRemoteUser(); does not return a null.
> > And
> > I hope that it means I am not passing a null value
> > when I use the hidden field technique.
> >
> > Then, I pass two hidden fields (with value in
> them)
> > from my JSP to a Java class (FindEditorData.java),
> > which is of scaffold.ProcessAction type. One of
> the
> > field is passed with its value correctly
> retrieved.
> > The other field is passed with its value found to
> be
> > null.
> >
> > What could go wrong? I have been thinking about
> it
> > for days and so do those who try to help me.
> >
> > <req:isUserInRole role="editor">
> > <html:form action="/find/Category">
> > <%
> > String username = request.getRemoteUser();
> > String userrole = "author";
> > %>
> > <%out.println("The user name is: " + username
> > +".");%>
> > <%out.println("The role is: " + userrole +".");%>
> > <html:hidden property="keyName"
> > value="journal_category"/>
> > <html:hidden property="username"
> > value="<%=username%>"/>
> > <html:submit>View Articles</html:submit>
> > </html:form>
> > </req:isUserInRole>
> >
> > -Caroline
> > --- "Yee, Richard K,,DMDCWEST"
> > <[EMAIL PROTECTED]> wrote:
> > > Caroline,
> > > Imposible? Look at the HTML that is generated by
> > the
> > > JSP page. I think you
> > > will see that it returns "null".
> > > Take a look at the JavaDoc for
> > > HttpServletRequest.getRemoteUser();
> > >
> > > getRemoteUser
> > > public java.lang.String getRemoteUser()
> > > Returns the login of the user making this
> request,
> > > if the user has been
> > > authenticated, or null if the user has not been
> > > authenticated. Whether the
> > > user name is sent with each subsequent request
> > > depends on the browser and
> > > type of authentication. Same as the value of the
> > CGI
> > > variable REMOTE_USER.
> > >
> > > Returns: a String specifying the login of the
> user
> > > making this request, or
> > > null
> > >
> > > As the JavaDoc says: "Whether the user name is
> > sent
> > > with each subsequent
> > > request depends on the browser and type of
> > > authentication." Are you using
> > > basic authentication or are you authenticating
> the
> > > user yourself?
> > > If you are doing it yourself (ie. through a db
> > > lookup) then the server
> > > doesn't know about the user being authenticated
> > and
> > > will return null.
> > >
> > > Regards,
> > >
> > > Richard
> > > -----Original Message-----
> > > From: Caroline Jen [mailto:[EMAIL PROTECTED]
>
> > > Sent: Monday, December 08, 2003 2:56 PM
> > > To: Struts Users Mailing List
> > > Subject: RE: Please Help! Unable to Pass A
> Hidden
> > > Field To scaffold.Proces
> > > sAction
> > >
> > >
> > > I pass two hidden fields: username and keyName
> at
> > > the
> > > same time. The keyName is passed and with the
> > > correct
> > > value in it. The username is passed but its
> value
> > > turns out to be a null.
> > >
> > > It is impossible for request.getRemoteUser(); in
> > my
> > > JSP returning a null. (see code below) Before
> it
> > > reaches request.getRemoteUser(); the user has
> > > already
> > > been successfully logged in with a valid name.
> > >
> > > <req:isUserInRole role="editor">
> > > <html:form action="/find/Category">
> > > <TR>
> > > <TD class="option">
> > > <% String username = request.getRemoteUser();%>
> > > <html:hidden property="keyName"
> > > value="journal_category"/>
> > > <html:hidden property="username"
> > > value="<%=username%>"/>
> > > <html:submit>View Articles</html:submit>
> > > </TD>
> > > </TR>
> > > </html:form>
> > > </req:isUserInRole>
> > > --- "Yee, Richard K,,DMDCWEST"
> > > <[EMAIL PROTECTED]> wrote:
> > > > Caroline,
> > > > Are you having problems with the username or
> the
> > > > keyName hidden variable? If
> > > > it is the username, then I'd suspect that
> > > > request.getRemoteUser() in your
> > > > JSP is returning null.
> > > >
> > > > Regards,
> > > >
> > > > Richard
> > > >
> > > > -----Original Message-----
> > > > From: Caroline Jen
> [mailto:[EMAIL PROTECTED]
> > > > Sent: Monday, December 08, 2003 1:32 PM
> > > > To: Struts Users Mailing List
> > > > Subject: Re: Please Help! Unable to Pass A
> > Hidden
> > > > Field To
> > > > scaffold.ProcessAction
> > > >
>
=== message truncated ===
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