RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
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
I did not mess up lowercase and uppercase of the
hidden field I want to pass from my JSP to the scaffold.ProcessAction. If
it had been the lowercase/uppercase problem, I would have gotten a message
saying that the variable could not be recognized.
I pass two hidden fields at the same time. One of
them is successfully passed with correct value. The
other is passed but its value shows a 'null' in the scaffold.ProcessAction.
What could go wrong? Let me show my code again:
Two hidden fields: username and keyName are passed
from a JSP via a SUBMIT button:
<% String username = request.getRemoteUser();%>
View Articles
and an action mapping:
The value of the 'username' is found to be a 'null' in
the FindEditorData.java while the value of keyName is successfully
retrieved. In the browser, I got:
name=null; kn=journal_category; kv=null
The code of my FindEditorData is shown below:
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
--- Caroline Jen <[EMAIL PROTECTED]> wrote:
> I want to pass two hidden fields; username and
> keyName
> from a JSP via a SUBMIT button:
>
>
>
> <% String username = request.getRemoteUser();%>
> value="journal_category"/>
> value="<%=username%>"/>
> View Articles
>
>
>
> and an action mapping:
>
> roles="editor"
> path="/find/Category"
>
> type="org.apache.struts.scaffold.ProcessAction"
>
>
parameter="org.apache.artimus.article.FindEditorData"
> name="articleForm"
> scope="request"
> validate="false">
> name="success"
> path=".article.Result"/>
>
>
> How come the username is not passed to the FindEditorData.java while
> the keyName is successfully
> passed. In the browser, I got:
>
> name=null; kn=journal_category; kv=null
>
> The code of my FindEditorData is shown below:
>
> 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
>
>
>
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For additional
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.
<% String username = request.getRemoteUser();%>
View Articles
--- "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
>
>
> I did not mess up lowercase and uppercase of the
> hidden field I want to pass from my JSP to the
> scaffold.ProcessAction. If
> it had been the lowercase/uppercase problem, I would
> have gotten a message
> saying that the variable could not be recognized.
>
> I pass two hidden fields at the same time. One of
> them is successfully passed with correct value. The
> other is passed but its value shows a 'null' in the
> scaffold.ProcessAction.
> What could go wrong? Let me show my code again:
>
> Two hidden fields: username and keyName are passed
> from a JSP via a SUBMIT button:
>
>
>
> <% String username = request.getRemoteUser();%>
> value="journal_category"/>
> value="<%=username%>"/>
> View Articles
>
>
>
> and an action mapping:
>
> roles="editor"
> path="/find/Category"
>
> type="org.apache.struts.scaffold.ProcessAction"
>
>
parameter="org.apache.artimus.article.FindEditorData"
> name="articleForm"
> scope="request"
> validate="false">
> name="success"
> path=".article.Result"/>
>
>
> The value of the 'username' is found to be a 'null'
> in
> the FindEditorData.java while the value of keyName
> is successfully
> retrieved. In the browser, I got:
>
> name=null; kn=journal_category; kv=null
>
> The code of my FindEditorData is shown below:
>
> 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
>
>
>
> --- Caroline Jen <[EMAIL PROTECTED]> wrote:
> > I want to pass two hidden fields; username and
> > keyName
> > from a JSP via a SUBMIT button:
> >
> >
> >
> > <% String username = request.getRemoteUser();%>
> > > value="journal_category"/>
> > > value="<%=username%>"/>
> > View Articles
> >
> >
> >
> > and an action mapping:
> >
> > > roles="editor"
> > path="/find/Category"
> >
> > type="org.apache.struts.scaffold.ProcessAction"
> >
> >
>
parameter="org.apache.artimus.article.FindEditorData"
> > name="articleForm"
> > scope="request"
> > validate="false">
> > > name="success"
> > path=".article.Result"/>
> >
> >
> > How come the username is not passed to the
> FindEditorData.java while
> > the keyName is successfully
> > passed. In the browser, I got:
> >
> > name=null; kn=journal_category; kv=null
> >
> > The code of my FindEditorData is shown below:
> >
> > 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 );
> >
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
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.
<% String username = request.getRemoteUser();%>
View Articles
--- "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
>
>
> I did not mess up lowercase and uppercase of the
> hidden field I want to pass from my JSP to the scaffold.ProcessAction.
> If it had been the lowercase/uppercase problem, I would
> have gotten a message
> saying that the variable could not be recognized.
>
> I pass two hidden fields at the same time. One of
> them is successfully passed with correct value. The
> other is passed but its value shows a 'null' in the
> scaffold.ProcessAction. What could go wrong? Let me show my code
> again:
>
> Two hidden fields: username and keyName are passed
> from a JSP via a SUBMIT button:
>
>
>
> <% String username = request.getRemoteUser();%>
> value="journal_category"/>
> value="<%=username%>"/>
> View Articles
>
>
>
> and an action mapping:
>
> roles="editor"
> path="/find/Category"
>
> type="org.apache.struts.scaffold.ProcessAction"
>
>
parameter="org.apache.artimus.article.FindEditorData"
> name="articleForm"
> scope="request"
> validate="false">
> name="success"
> path=".article.Result"/>
>
>
> The value of the 'username' is found to be a 'null'
> in
> the FindEditorData.java while the value of keyName
> is successfully
> retrieved. In the browser, I got:
>
> name=null; kn=journal_category; kv=null
>
> The code of my FindEditorData is shown below:
>
> 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
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
I use container-managed authentication. --- "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. > > > > > > <% String username = request.getRemoteUser();%> > value="journal_category"/> > value="<%=username%>"/> > View Articles > > > > > --- "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 > > > > > > I did not mess up lowercase and uppercase of the > > hidden field I want to pass from my JSP to the > scaffold.ProcessAction. > > If it had been the lowercase/uppercase problem, I > would > > have gotten a message > > saying that the variable could not be recognized. > > > > > I pass two hidden fields at the same time. One of > > them is successfully passed with correct value. > The > > other is passed but its value shows a 'null' in > the > > scaffold.ProcessAction. What could go wrong? Let > me show my code > > again: > > > > Two hidden fields: username and keyName are passed > > from a JSP via a SUBMIT button: > > > > > > > > <% String username = request.getRemoteUser();%> > > > value="journal_category"/> > > > value="<%=username%>"/> > > View Articles > > > > > > > > and an action mapping: > > > > > roles="editor" > > path="/find/Category" > > > > type="org.apache.struts.scaffold.ProcessAction" > > > > > parameter="org.apache.artimus.article.FindEditorData" > > name="articleForm" > > scope="request" > > validate="false"> > > > name="success" > > path=".article.Result"/> > > > > > > The value of the 'username' is found to be a > 'null' > > in > > the FindEditorData.java while the value of keyName > > is successfully > > retrieved. In the browser, I got: > > > > name=null; kn=journal_category; kv=null > > > > The code of my FindEditorData is shown below: > > > >
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
Caroline, Did you check the result of getRemoteUser(). Does it return null or "null"? If so, it's not a problem with your hidden form variables,. -Richard At 05:29 PM 12/8/2003, you wrote: I use container-managed authentication. --- "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. > > > > > > <% String username = request.getRemoteUser();%> > value="journal_category"/> > value="<%=username%>"/> > View Articles > > > > > --- "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 > > > > > > I did not mess up lowercase and uppercase of the > > hidden field I want to pass from my JSP to the > scaffold.ProcessAction. > > If it had been the lowercase/uppercase problem, I > would > > have gotten a message > > saying that the variable could not be recognized. > > > > > I pass two hidden fields at the same time. One of > > them is successfully passed with correct value. > The > > other is passed but its value shows a 'null' in > the > > scaffold.ProcessAction. What could go wrong? Let > me show my code > > again: > > > > Two hidden fields: username and keyName are passed > > from a JSP via a SUBMIT button: > > > > > > > > <% String username = request.getRemoteUser();%> > > > value="journal_category"/> > > > value="<%=username%>"/> > > View Articles > > > > > > > > and an action mapping: > > > > > roles="editor" > > path="/find/Category" > > > > type="org.apache.struts.scaffold.ProcessAction" > > > > > parameter="org.apache.artimus.article.FindEditorData" > > name="articleForm" > > scope="request" > > validate="false"> > > > name="success" > > path=".article.Result"/> > > > > > > The value of the 'username' is found to be a > 'null' > > in > > the FindEditorData.java while the value of keyName > > is successfully
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
Caroline,
Why are you passing the result of request.getRemoteUser() in a hidden
variable anyway since it is available as part of the HttpRequest and thus
will be available in the action class?
-Richard
At 02:55 PM 12/8/2003, you wrote:
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.
<% String username = request.getRemoteUser();%> value="journal_category"/>
value="<%=username%>"/> View Articles
--- "Yee, Richard K,,DMDCWEST" 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 > > > I did not mess up lowercase and uppercase of
the > hidden field I want to pass from my JSP to the >
scaffold.ProcessAction. If > it had been the lowercase/uppercase problem,
I would > have gotten a message > saying that the variable could not be
recognized. > > I pass two hidden fields at the same time. One of > them
is successfully passed with correct value. The > other is passed but its
value shows a 'null' in the > scaffold.ProcessAction. > What could go
wrong? Let me show my code again: > > Two hidden fields: username and
keyName are passed > from a JSP via a SUBMIT button: > > > > <% String
username = request.getRemoteUser();%> > value="journal_category"/> >
value="<%=username%>"/> > View Articles > > > > and an action mapping: > >
roles="editor" > path="/find/Category" > >
type="org.apache.struts.scaffold.ProcessAction" > >
parameter="org.apache.artimus.article.FindEditorData" >
name="articleForm" > scope="request" > validate="false"> >
name="success" > path=".article.Result"/> > > > The value of the
'username' is found to be a 'null' > in > the FindEditorData.java while
the value of keyName > is successfully > retrieved. In the browser, I
got: > > name=null; kn=journal_category; kv=null > > The code of my
FindEditorData is shown below: > > 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 > > > > --- Caroline Jen wrote: > > I want to pass two
hidden fields; username and > > keyName > > from a JSP via a SUBMIT
button: > > > > > > > > <% String username =
request.getRemoteUser();%> > > > value="journal_category"/> > > >
value="<%=username%>"/> > > View Articles > > > > > > > > and an action
mapping: > > > > > roles="editor" > > path="/find/Category" > > > >
type="org.apache.struts.scaffold.ProcessAction" > > > > >
parameter="org.apache.artimus.article.FindEditorData" > >
name="articleForm" > > scope="request" > > validate="false"> > > >
name="success" > > path=".article.Result"/> > > > > > > How come the
username is not passed to the > FindEditorData.java while > > the keyName
is successfully > > passed. In the browser, I got: > > > > name=null;
kn=journal_category; kv=null > > > > The code of my FindEditorData is
shown below: > > > > 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 >
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
I must pass the result of request.getRemoteUser()
because it is a "Java class" that "receives" the
hidden field. If you read my code carefully, you will
see that FindEditorData.java is a Java class and I
cannot use 'request' or 'session' in a Java class. It
takes a servlet or a class extends Action to use
'request' or 'session'.
But, this class is of ProcessAction type defined in
the struts-config.xml:
And, it is easy to see that I use container-managed
authentication. In my JSP, there is before reaching <% String
username=request.getRemoteUser(); %> Again, I have
provided my code:
<% String username = request.getRemoteUser(); %>
View Articles
--- Richard Yee <[EMAIL PROTECTED]> wrote:
> Caroline,
> Why are you passing the result of
> request.getRemoteUser() in a hidden
> variable anyway since it is available as part of the
> HttpRequest and thus
> will be available in the action class?
>
> -Richard
>
> At 02:55 PM 12/8/2003, you wrote:
> >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.
> >
> >
> ><% String username = request.getRemoteUser();%>
> value="journal_category"/>
> >value="<%=username%>"/> View Articles
> >--- "Yee, Richard K,,DMDCWEST" 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 > > > I did not mess up
> lowercase and uppercase of
> >the > hidden field I want to pass from my JSP to
> the >
> >scaffold.ProcessAction. If > it had been the
> lowercase/uppercase problem,
> >I would > have gotten a message > saying that the
> variable could not be
> >recognized. > > I pass two hidden fields at the
> same time. One of > them
> >is successfully passed with correct value. The >
> other is passed but its
> >value shows a 'null' in the >
> scaffold.ProcessAction. > What could go
> >wrong? Let me show my code again: > > Two hidden
> fields: username and
> >keyName are passed > from a JSP via a SUBMIT
> button: > > > > <% String
> >username = request.getRemoteUser();%> >
> value="journal_category"/> >
> >value="<%=username%>"/> > View Articles > > > > and
> an action mapping: > >
> >roles="editor" > path="/find/Category" > >
> >type="org.apache.struts.scaffold.ProcessAction" > >
>
>
>parameter="org.apache.artimus.article.FindEditorData"
> >
> >name="articleForm" > scope="request" >
> validate="false"> >
> >name="success" > path=".article.Result"/> > > > The
> value of the
> >'username' is found to be a 'null' > in > the
> FindEditorData.java while
> >the value of keyName > is successfully > retrieved.
> In the browser, I
> >got: > > name=null; kn=journal_category; kv=null >
> > The code of my
> >FindEditorData is shown below: > > 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 > > > > --- Caroline Jen wrote: > >
> I want to pass two
> >hidden fields; username and > > keyName > > from a
> JSP via a SUBMIT
> >button: > > > > > > > > <% String username =
> >request.getRemoteUser();%> > > >
> value="journal_category"/> > > >
> >value="<%=username%>"/> > > View Articles > > > > >
> > > > and an action
> >mapping: > > > > > roles="editor" > >
> path="/find/Category" > > > >
> >type="org.apache.struts.scaffold.ProcessAction" > >
> > > >
>
>parameter="org.apache.artimus.article.FindEditorData"
> > >
> >name="articleForm" > > scope="request" > >
> validate="false"> > > >
> >name="success" > > path=".article
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
Caroline,
What is the return value of getRemoteUser() ?
-Richard
At 07:38 PM 12/8/2003, you wrote:
I must pass the result of request.getRemoteUser()
because it is a "Java class" that "receives" the
hidden field. If you read my code carefully, you will
see that FindEditorData.java is a Java class and I
cannot use 'request' or 'session' in a Java class. It
takes a servlet or a class extends Action to use
'request' or 'session'.
But, this class is of ProcessAction type defined in
the struts-config.xml:
type="org.apache.struts.scaffold.ProcessAction"
parameter="org.apache.artimus.article.FindEditorData"
name="articleForm"
scope="request"
validate="false">
And, it is easy to see that I use container-managed
authentication. In my JSP, there is
role="editor"> before reaching <% String
username=request.getRemoteUser(); %> Again, I have
provided my code:
<% String username = request.getRemoteUser(); %>
value="journal_category"/> value="<%=username%>"/> View Articles ---
Richard Yee wrote: > Caroline, > Why are you passing the result of >
request.getRemoteUser() in a hidden > variable anyway since it is
available as part of the > HttpRequest and thus > will be available in the
action class? > > -Richard > > At 02:55 PM 12/8/2003, you wrote: > >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. > > > > > ><%
String username = request.getRemoteUser();%> >
value="journal_category"/> > >value="<%=username%>"/> View Articles > >---
"Yee, Richard K,,DMDCWEST" 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 > > > I
did not mess up > lowercase and uppercase of > >the > hidden field I want
to pass from my JSP to > the > > >scaffold.ProcessAction. If > it had been
the > lowercase/uppercase problem, > >I would > have gotten a message >
saying that the > variable could not be > >recognized. > > I pass two
hidden fields at the > same time. One of > them > >is successfully passed
with correct value. The > > other is passed but its > >value shows a
'null' in the > > scaffold.ProcessAction. > What could go > >wrong? Let me
show my code again: > > Two hidden > fields: username and > >keyName are
passed > from a JSP via a SUBMIT > button: > > > > <% String > >username =
request.getRemoteUser();%> > >
value="journal_category"/> > > >value="<%=username%>"/> > View
Articles > > > > and > an action mapping: > > > >roles="editor" >
path="/find/Category" > > > >type="org.apache.struts.scaffold.ProcessAction
" > > > > >parameter="org.apache.artimus.article.FindEditorData" > > > >nam
e="articleForm" > scope="request" > >
validate="false"> > > >name="success" > path=".article.Result"/> > > >
The > value of the > >'username' is found to be a 'null' > in > the >
FindEditorData.java while > >the value of keyName > is successfully >
retrieved. > In the browser, I > >got: > > name=null; kn=journal_category;
kv=null > > > The code of my > >FindEditorData is shown below: > > 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 > > > > --- Caroline Jen
wrote: > > > I want to pass two > >hidden fields; username and > >
keyName > > from a > JSP via a SUBMIT > >button: > > > > > > > > <% String
username = > >request.getRemoteUser();%> > > > >
value="journal_category"/> > > > > >value="<%=username%>"/> > > View
Articles > > > > > > > >
Re: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
Rats, the thread broke, hence my other reply. Like everyone says, you
need to check the return value of getRemoteUser() - try looking at the
value of the hidden field in the HTML via IE's 'Show page source'.
On 12/08/2003 11:55 PM Caroline Jen wrote:
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.
<% String username = request.getRemoteUser();%>
View Articles
--- "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
I did not mess up lowercase and uppercase of the
hidden field I want to pass from my JSP to the
scaffold.ProcessAction. If
it had been the lowercase/uppercase problem, I would
have gotten a message
saying that the variable could not be recognized.
I pass two hidden fields at the same time. One of
them is successfully passed with correct value. The
other is passed but its value shows a 'null' in the
scaffold.ProcessAction.
What could go wrong? Let me show my code again:
Two hidden fields: username and keyName are passed
from a JSP via a SUBMIT button:
<% String username = request.getRemoteUser();%>
View Articles
and an action mapping:
roles="editor"
path="/find/Category"
type="org.apache.struts.scaffold.ProcessAction"
parameter="org.apache.artimus.article.FindEditorData"
name="articleForm"
scope="request"
validate="false">
The value of the 'username' is found to be a 'null'
in
the FindEditorData.java while the value of keyName
is successfully
retrieved. In the browser, I got:
name=null; kn=journal_category; kv=null
The code of my FindEditorData is shown below:
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
--- Caroline Jen <[EMAIL PROTECTED]> wrote:
I want to pass two hidden fields; username and
keyName
from a JSP via a SUBMIT button:
<% String username = request.getRemoteUser();%>
View Articles
and an action mapping:
roles="editor"
path="/find/Category"
type="org.apache.struts.scaffold.ProcessAction"
parameter="org.apache.artimus.article.FindEditorData"
name="articleForm"
scope="request"
validate="false">
How come the username is not passed to the
FindEditorData.java while
the keyName is successfully
passed. In the browser, I got:
name=null; kn=journal_category; kv=null
The code of my FindEditorData is shown below:
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 );
=== message truncated ===
__
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Re: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
On 09/12/2003 01:29 Caroline Jen wrote: I use container-managed authentication. In which case, why don't you get the user name using request.getUserPrincipal().getName() ? -- Paul Thomas +--+-+ | Thomas Micro Systems Limited | Software Solutions for the Smaller Business | | Computer Consultants | http://www.thomas-micro-systems-ltd.co.uk | +--+-+ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
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:
<%
String username = request.getRemoteUser();
String userrole = "author";
%>
<% out.println("The user name is: " + username +".");
%>
<% out.println("The role is: " + userrole +"."); %>
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.
<%
String username = request.getRemoteUser();
String userrole = "author";
%>
<%out.println("The user name is: " + username +".");%>
<%out.println("The role is: " + userrole +".");%>
View Articles
-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.
>
>
>
>
>
> <% String username = request.getRemoteUser();%>
> value="journal_category"/>
> value="<%=username%>"/>
> View Articles
>
>
>
>
> --- "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
> >
> >
> > I did not mess up lowercase and uppercase of the
> > hidden field I want to pass from my JSP to the
> scaffold.ProcessAction.
> > If it had been the lowercase/uppercase problem, I
> would
> > have gotten a message
> > saying that the variable could not be recognized.
>
> >
> > I pass two hidden fields at the same time. One of
> > them is successfully passed with correct value.
> The
> > other is passed but its value shows a 'nu
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
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:
>
>
> <%
>String username = request.getRemoteUser();
>String userrole = "author";
> %>
> <% out.println("The user name is: " + username
> +".");
> %>
> <% out.println("The role is: " + userrole +"."); %>
>
>
> 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.
>
>
>
> <%
>String username = request.getRemoteUser();
>String userrole = "author";
> %>
> <%out.println("The user name is: " + username
> +".");%>
> <%out.println("The role is: " + userrole +".");%>
> value="journal_category"/>
> value="<%=username%>"/>
> View Articles
>
>
>
> -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.
> >
> >
> >
> >
> >
> > <% String username = request.getRemoteUser();%>
> > > value="journal_category"/>
> > > value="<%=use
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
gt; 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. > > > > > > > > > > > > > > > > > > <% String username = request.getRemoteUser();%> > > > > > value="journal_category"/> > > > > > value="<%=username%>"/> > > > View Articles > > > > > > > > > > > > > > > --- "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 === __ Do you Yahoo!? New Yahoo! Photos - easier uploading and sharing. http://photos.yahoo.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
Caroline,
As a sanity check, in your bean, initialize the
username variable to something ie. "XX". and
re-run your app. This will show if your setUsername is
ever called.
-Richard
--- Caroline Jen <[EMAIL PROTECTED]> wrote:
> 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:
> > >
> > >
> > > <%
> > >String username = request.getRemoteUser();
> > >String userrole = "author";
> > > %>
> > > <% out.println("The user name is: " + username
> > > +".");
> > > %>
> > > <% out.println("The role is: " + userrole +".");
> > %>
> > >
> > >
> > > 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.
> > >
> > >
> > >
> > > <%
> > >String username = request.getRemoteUser();
> > >String userrole = "author";
> > > %>
> > > <%out.println("The user name is: " + username
> > > +".");%>
> > > <%out.println("The role is: " + userrole
> +".");%>
> > > > > value="journal_category"/>
> > > > > value="<%=username%>"/>
> > > View Articles
> > >
> > >
> > >
> > > -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
> >
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
I followed your advice. In the Bean.java, I did the
following:
private String username = "natalie";
public String getUsername() {
return this.username;
}
public void setUsername(String username) {
this.username = username;
}
and I compiled all the relevant classes, re-run the
application, the FindEditorData.java writes out the
following in the browser:
The process did not complete. Details should follow.
name=natalie; kn=journal_category; kv=null
Now, the question is why the Bean.java does not pick
up the value of the hidden field 'username' from my
JSP while successfully picks up the value of the other
hidden field 'keyName'.
There is some data processing activities going on in
the FindEditorData.java:
String username = getUsername();
EditorService service = new EditorService();
String value = service.findEditorData( username );
The above data accessing codes had been tested outside
the environment of the application (the codes did what
I expected them to do without problem) before they
were integrated into the application.
-Caroline
--- Richard Yee <[EMAIL PROTECTED]> wrote:
> Caroline,
> As a sanity check, in your bean, initialize the
> username variable to something ie. "XX". and
> re-run your app. This will show if your setUsername
> is
> ever called.
>
> -Richard
>
> --- Caroline Jen <[EMAIL PROTECTED]> wrote:
> > 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:
> > > >
> > > >
> > > > <%
> > > >String username = request.getRemoteUser();
> > > >String userrole = "author";
> > > > %>
> > > > <% out.println("The user name is: " + username
> > > > +".");
> > > > %>
> > > > <% out.println("The role is: " + userrole
> +".");
> > > %>
> > > >
> > > >
> > > > 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 oth
RE: Please Help! Unable to Pass A Hidden Field To scaffold.Proces sAction
I did another test. I took out those data access
activities in the FindEditorData.java and ran the
application. The conclusion is that those few lines
of data access activities have nothing to do with the
value of the 'username' becoming null in the
FindEditorData.java.
-Caroline
--- Richard Yee <[EMAIL PROTECTED]> wrote:
> Caroline,
> As a sanity check, in your bean, initialize the
> username variable to something ie. "XX". and
> re-run your app. This will show if your setUsername
> is
> ever called.
>
> -Richard
>
> --- Caroline Jen <[EMAIL PROTECTED]> wrote:
> > 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:
> > > >
> > > >
> > > > <%
> > > >String username = request.getRemoteUser();
> > > >String userrole = "author";
> > > > %>
> > > > <% out.println("The user name is: " + username
> > > > +".");
> > > > %>
> > > > <% out.println("The role is: " + userrole
> +".");
> > > %>
> > > >
> > > >
> > > > 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.
> > > >
> > > >
> > > >
> > > > <%
> > > >String username = request.getRemoteUser();
> > > >String userrole = "author";
> > > > %>
> > > > <%out.println("The user name is: " + username
> > > > +".");%>
> > > > <%out.println("The role is: " + userrole
> > +".");%>
> > > > > > > value="journal_category"/>
> > > > > > > value="<%=username%>"/>
> > > > View Articles
> > > >
> > > >
> > > >
> > > > -Caroline
> > > > --- "Yee, Richard K,,DMDCWEST"
> > > > <[EMAIL PROTECTED]> wrote:
> > > > > Caroline,
> > > > > Imposible? Look at the HTML that is
> generated
> > by
> > > > the
> > > > > JSP page.
