Re: Expression Language ${initParam.whatever} not working
Am 10.02.2020 22:43, schrieb Richard Monson-Haefel:
Thanks, Mark. Your explanation was good but the code didn't do it.
Then try
${pageContext.servletConfig.getInitParameter("greeting_color")}
Felix
On Mon, Feb 10, 2020 at 12:10 PM Mark Thomas wrote:
On 10/02/2020 18:03, Richard Monson-Haefel wrote:
> Hi Simon,
>
> Thanks for the response but I don't think that is the issue. I can use
the
> instead, but I want to use the initParam for the JSP page
> which is named and mapped in the element. Perhaps I'm still
> missing something.
The EL implicit object initParam holds the *ServletConext*'s init
params, not the Servlet's.
You probably want something like (untested)
${ pageContext.servletConfig.initParameter("greeting_color") }
Mark
>
> On Mon, Feb 10, 2020 at 12:00 PM Simon Funnell
> wrote:
>
>> In your web.xml you want:
>>
>>
>> greeting_color
>> green
>>
>>
>> I think you have defined an initialization parameter for the servlet,
not
>> the context.
>>
>> On Mon, 10 Feb 2020 at 17:54, Richard Monson-Haefel <
>> monsonhae...@gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> Tomcat version: 9.0.30
>>> Operating System: macOS 10.15.2
>>>
>>> While I can access my initParam vis a JSP scriptlet I cannot access the
>>> same initial paramter EL expression.
>>>
>>> Here is the JSP code I'm using
>>>
>>>
>>>
>>>
>>> >> %>">Hello ${param.name} from
hello.jsp
>>>
>>>
>>> color is ${initParam["greeting_color"]}
>>>
>>>
>>>
>>> Here is my web.xml declaring the initial parameters
>>>
>>> http://xmlns.jcp.org/xml/ns/javaee";
>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>>> xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
>>>
http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd
>> "
>>> version="4.0"
>>> metadata-complete="true">
>>>
>>>
>>>
>>>
>>> HiJsp
>>> /hello.jsp
>>>
>>> greeting_color
>>> green
>>>
>>>
>>>
>>> HiJsp
>>> /hola/*
>>>
>>>
>>>
>>> Here is the output (source)
>>>
>>>
>>>
>>>
>>> Hello richard from
>>> hello.jsp
>>>
>>> color is
>>>
>>>
>>>
>>> I don't understand why the JSP expression <%= %> works but the EL
>>> expression ${ } doesn't. I've tried many variations and other EL
>> implicit
>>> objects I've tried worked fine.
>>>
>>> What am I missing?
>>>
>>> The WAR is attached for your convenience.
>>>
>>>
>>>
>>> --
>>> Richard Monson-Haefel
>>> https://twitter.com/rmonson
>>> https://www.linkedin.com/in/monsonhaefel/
>>>
>>> -
>>> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
>>> For additional commands, e-mail: users-h...@tomcat.apache.org
>>
>
>
-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org
-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Expression Language ${initParam.whatever} not working
Thanks, Mark. Your explanation was good but the code didn't do it.
On Mon, Feb 10, 2020 at 12:10 PM Mark Thomas wrote:
> On 10/02/2020 18:03, Richard Monson-Haefel wrote:
> > Hi Simon,
> >
> > Thanks for the response but I don't think that is the issue. I can use
> the
> > instead, but I want to use the initParam for the JSP page
> > which is named and mapped in the element. Perhaps I'm still
> > missing something.
>
> The EL implicit object initParam holds the *ServletConext*'s init
> params, not the Servlet's.
>
> You probably want something like (untested)
>
> ${ pageContext.servletConfig.initParameter("greeting_color") }
>
> Mark
>
>
> >
> > On Mon, Feb 10, 2020 at 12:00 PM Simon Funnell
> > wrote:
> >
> >> In your web.xml you want:
> >>
> >>
> >> greeting_color
> >> green
> >>
> >>
> >> I think you have defined an initialization parameter for the servlet,
> not
> >> the context.
> >>
> >> On Mon, 10 Feb 2020 at 17:54, Richard Monson-Haefel <
> >> monsonhae...@gmail.com>
> >> wrote:
> >>
> >>> Hi,
> >>>
> >>> Tomcat version: 9.0.30
> >>> Operating System: macOS 10.15.2
> >>>
> >>> While I can access my initParam vis a JSP scriptlet I cannot access the
> >>> same initial paramter EL expression.
> >>>
> >>> Here is the JSP code I'm using
> >>>
> >>>
> >>>
> >>>
> >>> >>> %>">Hello ${param.name} from
> hello.jsp
> >>>
> >>>
> >>> color is ${initParam["greeting_color"]}
> >>>
> >>>
> >>>
> >>> Here is my web.xml declaring the initial parameters
> >>>
> >>> http://xmlns.jcp.org/xml/ns/javaee";
> >>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> >>> xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
> >>>
> http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd
> >> "
> >>> version="4.0"
> >>> metadata-complete="true">
> >>>
> >>>
> >>>
> >>>
> >>> HiJsp
> >>> /hello.jsp
> >>>
> >>> greeting_color
> >>> green
> >>>
> >>>
> >>>
> >>> HiJsp
> >>> /hola/*
> >>>
> >>>
> >>>
> >>> Here is the output (source)
> >>>
> >>>
> >>>
> >>>
> >>> Hello richard from
> >>> hello.jsp
> >>>
> >>> color is
> >>>
> >>>
> >>>
> >>> I don't understand why the JSP expression <%= %> works but the EL
> >>> expression ${ } doesn't. I've tried many variations and other EL
> >> implicit
> >>> objects I've tried worked fine.
> >>>
> >>> What am I missing?
> >>>
> >>> The WAR is attached for your convenience.
> >>>
> >>>
> >>>
> >>> --
> >>> Richard Monson-Haefel
> >>> https://twitter.com/rmonson
> >>> https://www.linkedin.com/in/monsonhaefel/
> >>>
> >>> -
> >>> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
> >>> For additional commands, e-mail: users-h...@tomcat.apache.org
> >>
> >
> >
>
>
> -
> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
> For additional commands, e-mail: users-h...@tomcat.apache.org
>
>
--
Richard Monson-Haefel
https://twitter.com/rmonson
https://www.linkedin.com/in/monsonhaefel/
Re: Expression Language ${initParam.whatever} not working
On 10/02/2020 18:03, Richard Monson-Haefel wrote:
> Hi Simon,
>
> Thanks for the response but I don't think that is the issue. I can use the
> instead, but I want to use the initParam for the JSP page
> which is named and mapped in the element. Perhaps I'm still
> missing something.
The EL implicit object initParam holds the *ServletConext*'s init
params, not the Servlet's.
You probably want something like (untested)
${ pageContext.servletConfig.initParameter("greeting_color") }
Mark
>
> On Mon, Feb 10, 2020 at 12:00 PM Simon Funnell
> wrote:
>
>> In your web.xml you want:
>>
>>
>> greeting_color
>> green
>>
>>
>> I think you have defined an initialization parameter for the servlet, not
>> the context.
>>
>> On Mon, 10 Feb 2020 at 17:54, Richard Monson-Haefel <
>> monsonhae...@gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> Tomcat version: 9.0.30
>>> Operating System: macOS 10.15.2
>>>
>>> While I can access my initParam vis a JSP scriptlet I cannot access the
>>> same initial paramter EL expression.
>>>
>>> Here is the JSP code I'm using
>>>
>>>
>>>
>>>
>>> >> %>">Hello ${param.name} from hello.jsp
>>>
>>>
>>> color is ${initParam["greeting_color"]}
>>>
>>>
>>>
>>> Here is my web.xml declaring the initial parameters
>>>
>>> http://xmlns.jcp.org/xml/ns/javaee";
>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>>> xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
>>> http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd
>> "
>>> version="4.0"
>>> metadata-complete="true">
>>>
>>>
>>>
>>>
>>> HiJsp
>>> /hello.jsp
>>>
>>> greeting_color
>>> green
>>>
>>>
>>>
>>> HiJsp
>>> /hola/*
>>>
>>>
>>>
>>> Here is the output (source)
>>>
>>>
>>>
>>>
>>> Hello richard from
>>> hello.jsp
>>>
>>> color is
>>>
>>>
>>>
>>> I don't understand why the JSP expression <%= %> works but the EL
>>> expression ${ } doesn't. I've tried many variations and other EL
>> implicit
>>> objects I've tried worked fine.
>>>
>>> What am I missing?
>>>
>>> The WAR is attached for your convenience.
>>>
>>>
>>>
>>> --
>>> Richard Monson-Haefel
>>> https://twitter.com/rmonson
>>> https://www.linkedin.com/in/monsonhaefel/
>>>
>>> -
>>> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
>>> For additional commands, e-mail: users-h...@tomcat.apache.org
>>
>
>
-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Expression Language ${initParam.whatever} not working
Hi Simon,
Thanks for the response but I don't think that is the issue. I can use the
instead, but I want to use the initParam for the JSP page
which is named and mapped in the element. Perhaps I'm still
missing something.
On Mon, Feb 10, 2020 at 12:00 PM Simon Funnell
wrote:
> In your web.xml you want:
>
>
> greeting_color
> green
>
>
> I think you have defined an initialization parameter for the servlet, not
> the context.
>
> On Mon, 10 Feb 2020 at 17:54, Richard Monson-Haefel <
> monsonhae...@gmail.com>
> wrote:
>
> > Hi,
> >
> > Tomcat version: 9.0.30
> > Operating System: macOS 10.15.2
> >
> > While I can access my initParam vis a JSP scriptlet I cannot access the
> > same initial paramter EL expression.
> >
> > Here is the JSP code I'm using
> >
> >
> >
> >
> > > %>">Hello ${param.name} from hello.jsp
> >
> >
> > color is ${initParam["greeting_color"]}
> >
> >
> >
> > Here is my web.xml declaring the initial parameters
> >
> > http://xmlns.jcp.org/xml/ns/javaee";
> > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> > xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
> > http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd
> "
> > version="4.0"
> > metadata-complete="true">
> >
> >
> >
> >
> > HiJsp
> > /hello.jsp
> >
> > greeting_color
> > green
> >
> >
> >
> > HiJsp
> > /hola/*
> >
> >
> >
> > Here is the output (source)
> >
> >
> >
> >
> > Hello richard from
> > hello.jsp
> >
> > color is
> >
> >
> >
> > I don't understand why the JSP expression <%= %> works but the EL
> > expression ${ } doesn't. I've tried many variations and other EL
> implicit
> > objects I've tried worked fine.
> >
> > What am I missing?
> >
> > The WAR is attached for your convenience.
> >
> >
> >
> > --
> > Richard Monson-Haefel
> > https://twitter.com/rmonson
> > https://www.linkedin.com/in/monsonhaefel/
> >
> > -
> > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
> > For additional commands, e-mail: users-h...@tomcat.apache.org
>
--
Richard Monson-Haefel
https://twitter.com/rmonson
https://www.linkedin.com/in/monsonhaefel/
Re: Expression Language ${initParam.whatever} not working
In your web.xml you want:
greeting_color
green
I think you have defined an initialization parameter for the servlet, not
the context.
On Mon, 10 Feb 2020 at 17:54, Richard Monson-Haefel
wrote:
> Hi,
>
> Tomcat version: 9.0.30
> Operating System: macOS 10.15.2
>
> While I can access my initParam vis a JSP scriptlet I cannot access the
> same initial paramter EL expression.
>
> Here is the JSP code I'm using
>
>
>
>
> %>">Hello ${param.name} from hello.jsp
>
>
> color is ${initParam["greeting_color"]}
>
>
>
> Here is my web.xml declaring the initial parameters
>
> http://xmlns.jcp.org/xml/ns/javaee";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
> http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd";
> version="4.0"
> metadata-complete="true">
>
>
>
>
> HiJsp
> /hello.jsp
>
> greeting_color
> green
>
>
>
> HiJsp
> /hola/*
>
>
>
> Here is the output (source)
>
>
>
>
> Hello richard from
> hello.jsp
>
> color is
>
>
>
> I don't understand why the JSP expression <%= %> works but the EL
> expression ${ } doesn't. I've tried many variations and other EL implicit
> objects I've tried worked fine.
>
> What am I missing?
>
> The WAR is attached for your convenience.
>
>
>
> --
> Richard Monson-Haefel
> https://twitter.com/rmonson
> https://www.linkedin.com/in/monsonhaefel/
>
> -
> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
> For additional commands, e-mail: users-h...@tomcat.apache.org
Expression Language ${initParam.whatever} not working
Hi,
Tomcat version: 9.0.30
Operating System: macOS 10.15.2
While I can access my initParam vis a JSP scriptlet I cannot access the
same initial paramter EL expression.
Here is the JSP code I'm using
">Hello ${param.name} from hello.jsp
color is ${initParam["greeting_color"]}
Here is my web.xml declaring the initial parameters
http://xmlns.jcp.org/xml/ns/javaee";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd";
version="4.0"
metadata-complete="true">
HiJsp
/hello.jsp
greeting_color
green
HiJsp
/hola/*
Here is the output (source)
Hello richard from hello.jsp
color is
I don't understand why the JSP expression <%= %> works but the EL
expression ${ } doesn't. I've tried many variations and other EL implicit
objects I've tried worked fine.
What am I missing?
The WAR is attached for your convenience.
--
Richard Monson-Haefel
https://twitter.com/rmonson
https://www.linkedin.com/in/monsonhaefel/
-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org
