Loading properties files

[Laurent Michenaud]

Hi,

Could u tell me what is not correct with that :

Before we had that ( the properties files were in WEB-INF/classes ) and that works :

package com.a2a.util ;
public interface A2aConstantes
{
  public static final String SCHEMA = 
java.util.ResourceBundle.getBundle("db").getString("schema");
}


Now we want to have properties files in WEB-INF/config so we change
the file like this :

package com.a2a.util ;
public interface A2aConstantes
{
  public static final String SCHEMA = 
java.util.ResourceBundle.getBundle("/WEB-INF/config/db").getString("schema");
}

But it doesnot work, it can't find the db.properties. I have tried with 
"WEB-INF/config/db" and "/WEB-INF/config/db.properties" but
it doesnot work too.

Can u tell me what's wrong ?




Michenaud Laurent
- Adeuza -
[ Développeur Web - Administrateur Réseau ]


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Loading Properties Files

[echambe1]

Hello All:

I have a handful of classes, some static, that contain commonly used
functionality
that my web applications are using. Now, I am adding in a new static method
which
will require the Class to load a properties file within the Static
Initializer.

My problem is that the class cannot location my properties file. I am
unable to
use other suggested methods that I have noticed on this list since those
problems
involved Properties File within Servlets.

After some testing, I determined for some reason the default directory it
is looking
for my properties file is the Windows System Directory (Determined this by
opening
a file in the default directory, outputing something in it and searching
for the file).

Anyone have any ideas on how to solve this problem? I do not want to hard
code the
exact location due to obvious reasons

Thanks,
Ej Chambers



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Re: Loading properties files

[Alan Tingley - Iperia]

Your properties file must be in a location that Tomcat knows about via its
classpath (WEB-INF/classes is on Tomcat's classpath, that's why it worked
when your file was there).  See the Tomcat docs under "Classpath How-to",
which describes the class loaders in Tomcat.
Alan Tingley

- Original Message -
From: "Laurent Michenaud" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, August 27, 2002 4:40 AM
Subject: Loading properties files


Hi,

Could u tell me what is not correct with that :

Before we had that ( the properties files were in WEB-INF/classes ) and
that works :

package com.a2a.util ;
public interface A2aConstantes
{
  public static final String SCHEMA =
java.util.ResourceBundle.getBundle("db").getString("schema");
}


Now we want to have properties files in WEB-INF/config so we change
the file like this :

package com.a2a.util ;
public interface A2aConstantes
{
  public static final String SCHEMA =
java.util.ResourceBundle.getBundle("/WEB-INF/config/db").getString("sche
ma");
}

But it doesnot work, it can't find the db.properties. I have tried with
"WEB-INF/config/db" and "/WEB-INF/config/db.properties" but
it doesnot work too.

Can u tell me what's wrong ?




Michenaud Laurent
- Adeuza -
[ Développeur Web - Administrateur Réseau ]


--
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<mailto:[EMAIL PROTECTED]>
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Re: Loading properties files

[randie ursal]

why is it tomcat could not locate the property file if i place it on the
package directory structure of my servlets?...it is still on the 
WEB-INF/classes
directory isnt it? just need some more clarifications.

e.g  WEB-INF/classess/com/test/MyProperty.properties

thanks

Alan Tingley - Iperia wrote:

>Your properties file must be in a location that Tomcat knows about via its
>classpath (WEB-INF/classes is on Tomcat's classpath, that's why it worked
>when your file was there).  See the Tomcat docs under "Classpath How-to",
>which describes the class loaders in Tomcat.
>Alan Tingley
>
>- Original Message -
>From: "Laurent Michenaud" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Tuesday, August 27, 2002 4:40 AM
>Subject: Loading properties files
>
>
>Hi,
>
>Could u tell me what is not correct with that :
>
>Before we had that ( the properties files were in WEB-INF/classes ) and
>that works :
>
>package com.a2a.util ;
>public interface A2aConstantes
>{
>  public static final String SCHEMA =
>java.util.ResourceBundle.getBundle("db").getString("schema");
>}
>
>
>Now we want to have properties files in WEB-INF/config so we change
>the file like this :
>
>package com.a2a.util ;
>public interface A2aConstantes
>{
>  public static final String SCHEMA =
>java.util.ResourceBundle.getBundle("/WEB-INF/config/db").getString("sche
>ma");
>}
>
>But it doesnot work, it can't find the db.properties. I have tried with
>"WEB-INF/config/db" and "/WEB-INF/config/db.properties" but
>it doesnot work too.
>
>Can u tell me what's wrong ?
>
>
>
>
>Michenaud Laurent
>- Adeuza -
>[ Développeur Web - Administrateur Réseau ]
>
>
>--
>To unsubscribe, e-mail:
><mailto:[EMAIL PROTECTED]>
>For additional commands, e-mail:
><mailto:[EMAIL PROTECTED]>
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>
>
>--
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>
>
>
>  
>


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RE: Loading properties files

[Laurent Michenaud]

I can't find the documentation u speak about.

Could u give me the url ?

> -Message d'origine-
> De : Alan Tingley - Iperia [mailto:[EMAIL PROTECTED]]
> Envoyé : mardi 27 août 2002 12:15
> À : Tomcat Users List
> Objet : Re: Loading properties files
> 
> 
> Your properties file must be in a location that Tomcat knows 
> about via its
> classpath (WEB-INF/classes is on Tomcat's classpath, that's 
> why it worked
> when your file was there).  See the Tomcat docs under 
> "Classpath How-to",
> which describes the class loaders in Tomcat.
> Alan Tingley
> 
> - Original Message -
> From: "Laurent Michenaud" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, August 27, 2002 4:40 AM
> Subject: Loading properties files
> 
> 
> Hi,
> 
> Could u tell me what is not correct with that :
> 
> Before we had that ( the properties files were in 
> WEB-INF/classes ) and
> that works :
> 
> package com.a2a.util ;
> public interface A2aConstantes
> {
>   public static final String SCHEMA =
> java.util.ResourceBundle.getBundle("db").getString("schema");
> }
> 
> 
> Now we want to have properties files in WEB-INF/config so we change
> the file like this :
> 
> package com.a2a.util ;
> public interface A2aConstantes
> {
>   public static final String SCHEMA =
> java.util.ResourceBundle.getBundle("/WEB-INF/config/db").getSt
> ring("sche
> ma");
> }
> 
> But it doesnot work, it can't find the db.properties. I have 
> tried with
> "WEB-INF/config/db" and "/WEB-INF/config/db.properties" but
> it doesnot work too.
> 
> Can u tell me what's wrong ?
> 
> 
> 
> 
> Michenaud Laurent
> - Adeuza -
> [ Développeur Web - Administrateur Réseau ]
> 
> 
> --
> To unsubscribe, e-mail:
> <mailto:[EMAIL PROTECTED]>
> For additional commands, e-mail:
> <mailto:[EMAIL PROTECTED]>
> 
> 
> 
> --
> To unsubscribe, e-mail:   
> <mailto:[EMAIL PROTECTED]>
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> 
> 

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Re: Loading properties files

[Cédric Viaud]

http://jakarta.apache.org/tomcat/tomcat-4.1-doc/class-loader-howto.html
- Original Message -
From: "Laurent Michenaud" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, August 27, 2002 1:09 PM
Subject: RE: Loading properties files


> I can't find the documentation u speak about.
>
> Could u give me the url ?
>
> > -Message d'origine-
> > De : Alan Tingley - Iperia [mailto:[EMAIL PROTECTED]]
> > Envoyé : mardi 27 août 2002 12:15
> > À : Tomcat Users List
> > Objet : Re: Loading properties files
> >
> >
> > Your properties file must be in a location that Tomcat knows
> > about via its
> > classpath (WEB-INF/classes is on Tomcat's classpath, that's
> > why it worked
> > when your file was there).  See the Tomcat docs under
> > "Classpath How-to",
> > which describes the class loaders in Tomcat.
> > Alan Tingley
> >
> > - Original Message -
> > From: "Laurent Michenaud" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Tuesday, August 27, 2002 4:40 AM
> > Subject: Loading properties files
> >
> >
> > Hi,
> >
> > Could u tell me what is not correct with that :
> >
> > Before we had that ( the properties files were in
> > WEB-INF/classes ) and
> > that works :
> >
> > package com.a2a.util ;
> > public interface A2aConstantes
> > {
> >   public static final String SCHEMA =
> > java.util.ResourceBundle.getBundle("db").getString("schema");
> > }
> >
> >
> > Now we want to have properties files in WEB-INF/config so we change
> > the file like this :
> >
> > package com.a2a.util ;
> > public interface A2aConstantes
> > {
> >   public static final String SCHEMA =
> > java.util.ResourceBundle.getBundle("/WEB-INF/config/db").getSt
> > ring("sche
> > ma");
> > }
> >
> > But it doesnot work, it can't find the db.properties. I have
> > tried with
> > "WEB-INF/config/db" and "/WEB-INF/config/db.properties" but
> > it doesnot work too.
> >
> > Can u tell me what's wrong ?
> >
> >
> >
> >
> > Michenaud Laurent
> > - Adeuza -
> > [ Développeur Web - Administrateur Réseau ]
> >
> >
> > --
> > To unsubscribe, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> > For additional commands, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> >
> >
> >
> > --
> > To unsubscribe, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> > For additional commands, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> >
> >
>
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Re: Loading properties files

[Alan Tingley - Iperia]

try http://jakarta.apache.org/tomcat/tomcat-4.1-doc/class-loader-howto.html
Al

- Original Message -
From: "Laurent Michenaud" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, August 27, 2002 7:09 AM
Subject: RE: Loading properties files


I can't find the documentation u speak about.

Could u give me the url ?

> -Message d'origine-
> De : Alan Tingley - Iperia [mailto:[EMAIL PROTECTED]]
> Envoyé : mardi 27 août 2002 12:15
> À : Tomcat Users List
> Objet : Re: Loading properties files
>
>
> Your properties file must be in a location that Tomcat knows
> about via its
> classpath (WEB-INF/classes is on Tomcat's classpath, that's
> why it worked
> when your file was there).  See the Tomcat docs under
> "Classpath How-to",
> which describes the class loaders in Tomcat.
> Alan Tingley
>
> - Original Message -
> From: "Laurent Michenaud" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, August 27, 2002 4:40 AM
> Subject: Loading properties files
>
>
> Hi,
>
> Could u tell me what is not correct with that :
>
> Before we had that ( the properties files were in
> WEB-INF/classes ) and
> that works :
>
> package com.a2a.util ;
> public interface A2aConstantes
> {
>   public static final String SCHEMA =
> java.util.ResourceBundle.getBundle("db").getString("schema");
> }
>
>
> Now we want to have properties files in WEB-INF/config so we change
> the file like this :
>
> package com.a2a.util ;
> public interface A2aConstantes
> {
>   public static final String SCHEMA =
> java.util.ResourceBundle.getBundle("/WEB-INF/config/db").getSt
> ring("sche
> ma");
> }
>
> But it doesnot work, it can't find the db.properties. I have
> tried with
> "WEB-INF/config/db" and "/WEB-INF/config/db.properties" but
> it doesnot work too.
>
> Can u tell me what's wrong ?
>
>
>
>
> Michenaud Laurent
> - Adeuza -
> [ Développeur Web - Administrateur Réseau ]
>
>
> --
> To unsubscribe, e-mail:
> <mailto:[EMAIL PROTECTED]>
> For additional commands, e-mail:
> <mailto:[EMAIL PROTECTED]>
>
>
>
> --
> To unsubscribe, e-mail:
> <mailto:[EMAIL PROTECTED]>
> For additional commands, e-mail:
> <mailto:[EMAIL PROTECTED]>
>
>



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Re: Loading properties files

[Glenn Nielsen]

java.util.ResourceBundle.getBundle() uses the current ClassLoader to load
your resource bundle.  That means that your properties have to either be
located with a jar file in /WEB-INF/lib or in your /WEB-INF/classess directory.

This isn't a limitation of Tomcat, this is how resource bundles work.

Regards,

Glenn

randie ursal wrote:
> why is it tomcat could not locate the property file if i place it on the
> package directory structure of my servlets?...it is still on the 
> WEB-INF/classes
> directory isnt it? just need some more clarifications.
> 
> e.g  WEB-INF/classess/com/test/MyProperty.properties
> 
> thanks
> 
> Alan Tingley - Iperia wrote:
> 
>> Your properties file must be in a location that Tomcat knows about via 
>> its
>> classpath (WEB-INF/classes is on Tomcat's classpath, that's why it worked
>> when your file was there).  See the Tomcat docs under "Classpath How-to",
>> which describes the class loaders in Tomcat.
>> Alan Tingley
>>
>> - Original Message -
>> From: "Laurent Michenaud" <[EMAIL PROTECTED]>
>> To: <[EMAIL PROTECTED]>
>> Sent: Tuesday, August 27, 2002 4:40 AM
>> Subject: Loading properties files
>>
>>
>> Hi,
>>
>> Could u tell me what is not correct with that :
>>
>> Before we had that ( the properties files were in WEB-INF/classes ) and
>> that works :
>>
>> package com.a2a.util ;
>> public interface A2aConstantes
>> {
>>  public static final String SCHEMA =
>> java.util.ResourceBundle.getBundle("db").getString("schema");
>> }
>>
>>
>> Now we want to have properties files in WEB-INF/config so we change
>> the file like this :
>>
>> package com.a2a.util ;
>> public interface A2aConstantes
>> {
>>  public static final String SCHEMA =
>> java.util.ResourceBundle.getBundle("/WEB-INF/config/db").getString("sche
>> ma");
>> }
>>
>> But it doesnot work, it can't find the db.properties. I have tried with
>> "WEB-INF/config/db" and "/WEB-INF/config/db.properties" but
>> it doesnot work too.
>>
>> Can u tell me what's wrong ?
>>
>>
>>
>>
>> Michenaud Laurent
>> - Adeuza -
>> [ Développeur Web - Administrateur Réseau ]
>>
>>
>> -- 
>> To unsubscribe, e-mail:
>> <mailto:[EMAIL PROTECTED]>
>> For additional commands, e-mail:
>> <mailto:[EMAIL PROTECTED]>
>>
>>
>>
>> -- 
>> To unsubscribe, e-mail:   
>> <mailto:[EMAIL PROTECTED]>
>> For additional commands, e-mail: 
>> <mailto:[EMAIL PROTECTED]>
>>
>>
>>
>>  
>>
> 
> 
> -- 
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RE: Loading properties files

[Laurent Michenaud]

So, how can i modify my interface so that it reads
the file properties "db" in WEB-INF/config ?

> -Message d'origine-
> De : Glenn Nielsen [mailto:[EMAIL PROTECTED]]
> Envoyé : mardi 27 août 2002 15:32
> À : Tomcat Users List
> Objet : Re: Loading properties files
> 
> 
> java.util.ResourceBundle.getBundle() uses the current 
> ClassLoader to load
> your resource bundle.  That means that your properties have 
> to either be
> located with a jar file in /WEB-INF/lib or in your 
> /WEB-INF/classess directory.
> 
> This isn't a limitation of Tomcat, this is how resource bundles work.
> 
> Regards,
> 
> Glenn
> 
> randie ursal wrote:
> > why is it tomcat could not locate the property file if i 
> place it on the
> > package directory structure of my servlets?...it is still on the 
> > WEB-INF/classes
> > directory isnt it? just need some more clarifications.
> > 
> > e.g  WEB-INF/classess/com/test/MyProperty.properties
> > 
> > thanks
> > 
> > Alan Tingley - Iperia wrote:
> > 
> >> Your properties file must be in a location that Tomcat 
> knows about via 
> >> its
> >> classpath (WEB-INF/classes is on Tomcat's classpath, 
> that's why it worked
> >> when your file was there).  See the Tomcat docs under 
> "Classpath How-to",
> >> which describes the class loaders in Tomcat.
> >> Alan Tingley
> >>
> >> - Original Message -
> >> From: "Laurent Michenaud" <[EMAIL PROTECTED]>
> >> To: <[EMAIL PROTECTED]>
> >> Sent: Tuesday, August 27, 2002 4:40 AM
> >> Subject: Loading properties files
> >>
> >>
> >> Hi,
> >>
> >> Could u tell me what is not correct with that :
> >>
> >> Before we had that ( the properties files were in 
> WEB-INF/classes ) and
> >> that works :
> >>
> >> package com.a2a.util ;
> >> public interface A2aConstantes
> >> {
> >>  public static final String SCHEMA =
> >> java.util.ResourceBundle.getBundle("db").getString("schema");
> >> }
> >>
> >>
> >> Now we want to have properties files in WEB-INF/config so we change
> >> the file like this :
> >>
> >> package com.a2a.util ;
> >> public interface A2aConstantes
> >> {
> >>  public static final String SCHEMA =
> >> 
> java.util.ResourceBundle.getBundle("/WEB-INF/config/db").getSt
> ring("sche
> >> ma");
> >> }
> >>
> >> But it doesnot work, it can't find the db.properties. I 
> have tried with
> >> "WEB-INF/config/db" and "/WEB-INF/config/db.properties" but
> >> it doesnot work too.
> >>
> >> Can u tell me what's wrong ?
> >>
> >>
> >>
> >>
> >> Michenaud Laurent
> >> - Adeuza -
> >> [ Développeur Web - Administrateur Réseau ]
> >>
> >>
> >> -- 
> >> To unsubscribe, e-mail:
> >> <mailto:[EMAIL PROTECTED]>
> >> For additional commands, e-mail:
> >> <mailto:[EMAIL PROTECTED]>
> >>
> >>
> >>
> >> -- 
> >> To unsubscribe, e-mail:   
> >> <mailto:[EMAIL PROTECTED]>
> >> For additional commands, e-mail: 
> >> <mailto:[EMAIL PROTECTED]>
> >>
> >>
> >>
> >>  
> >>
> > 
> > 
> > -- 
> > To unsubscribe, e-mail:   
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Re: Loading properties files

[Alan Tingley - Iperia]

we're using something like (off the top of my head):

System.getResourceAsStream("com/domain/package/file.properties")

and that works; until we fixed our app deployment structure, we had to use
getSystemResourceAsStream (we were putting things in common/lib when we
shouldn't have).
Al

- Original Message -
From: "randie ursal" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <[EMAIL PROTECTED]>
Sent: Tuesday, August 27, 2002 7:05 AM
Subject: Re: Loading properties files


why is it tomcat could not locate the property file if i place it on the
package directory structure of my servlets?...it is still on the
WEB-INF/classes
directory isnt it? just need some more clarifications.

e.g  WEB-INF/classess/com/test/MyProperty.properties

thanks

Alan Tingley - Iperia wrote:

>Your properties file must be in a location that Tomcat knows about via
its
>classpath (WEB-INF/classes is on Tomcat's classpath, that's why it
worked
>when your file was there).  See the Tomcat docs under "Classpath
How-to",
>which describes the class loaders in Tomcat.
>Alan Tingley
>
>- Original Message -
>From: "Laurent Michenaud" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Tuesday, August 27, 2002 4:40 AM
>Subject: Loading properties files
>
>
>Hi,
>
>Could u tell me what is not correct with that :
>
>Before we had that ( the properties files were in WEB-INF/classes ) and
>that works :
>
>package com.a2a.util ;
>public interface A2aConstantes
>{
>  public static final String SCHEMA =
>java.util.ResourceBundle.getBundle("db").getString("schema");
>}
>
>
>Now we want to have properties files in WEB-INF/config so we change
>the file like this :
>
>package com.a2a.util ;
>public interface A2aConstantes
>{
>  public static final String SCHEMA =
>java.util.ResourceBundle.getBundle("/WEB-INF/config/db").getString("sch
e
>ma");
>}
>
>But it doesnot work, it can't find the db.properties. I have tried with
>"WEB-INF/config/db" and "/WEB-INF/config/db.properties" but
>it doesnot work too.
>
>Can u tell me what's wrong ?
>
>
>
>
>Michenaud Laurent
>- Adeuza -
>[ Développeur Web - Administrateur Réseau ]
>
>
>--
>To unsubscribe, e-mail:
><mailto:[EMAIL PROTECTED]>
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RE: Loading properties files

[Craig R. McClanahan]

On Tue, 27 Aug 2002, Laurent Michenaud wrote:

> Date: Tue, 27 Aug 2002 15:43:29 +0200
> From: Laurent Michenaud <[EMAIL PROTECTED]>
> Reply-To: Tomcat Users List <[EMAIL PROTECTED]>
> To: Tomcat Users List <[EMAIL PROTECTED]>
> Cc: [EMAIL PROTECTED]
> Subject: RE: Loading properties files
>
> So, how can i modify my interface so that it reads
> the file properties "db" in WEB-INF/config ?

You can't.

Well, technically you can -- by modifying Tomcat's source code to violate
the servlet specification -- but then you'd be tied to your own version of
Tomcat now and forevermore, which is not a good idea.

Either put your properties files in /WEB-INF/classes instead, or implement
your own subclass of ResourceBundle that does what you want.

Craig


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Re: Loading properties files

[Glenn Nielsen]

Why do you insist on putting your property file in /WEB-INF/config?

Just create a jar with your property file and put it in /WEB-INF/lib,
or put the property file in /WEB-INF/classes.

Regards,

Glenn

Laurent Michenaud wrote:
> So, how can i modify my interface so that it reads
> the file properties "db" in WEB-INF/config ?
> 
> 
>>-Message d'origine-
>>De : Glenn Nielsen [mailto:[EMAIL PROTECTED]]
>>Envoyé : mardi 27 août 2002 15:32
>>À : Tomcat Users List
>>Objet : Re: Loading properties files
>>
>>
>>java.util.ResourceBundle.getBundle() uses the current 
>>ClassLoader to load
>>your resource bundle.  That means that your properties have 
>>to either be
>>located with a jar file in /WEB-INF/lib or in your 
>>/WEB-INF/classess directory.
>>
>>This isn't a limitation of Tomcat, this is how resource bundles work.
>>
>>Regards,
>>
>>Glenn
>>
>>randie ursal wrote:
>>
>>>why is it tomcat could not locate the property file if i 
>>
>>place it on the
>>
>>>package directory structure of my servlets?...it is still on the 
>>>WEB-INF/classes
>>>directory isnt it? just need some more clarifications.
>>>
>>>e.g  WEB-INF/classess/com/test/MyProperty.properties
>>>
>>>thanks
>>>
>>>Alan Tingley - Iperia wrote:
>>>
>>>
>>>>Your properties file must be in a location that Tomcat 
>>>
>>knows about via 
>>
>>>>its
>>>>classpath (WEB-INF/classes is on Tomcat's classpath, 
>>>
>>that's why it worked
>>
>>>>when your file was there).  See the Tomcat docs under 
>>>
>>"Classpath How-to",
>>
>>>>which describes the class loaders in Tomcat.
>>>>Alan Tingley
>>>>
>>>>- Original Message -
>>>>From: "Laurent Michenaud" <[EMAIL PROTECTED]>
>>>>To: <[EMAIL PROTECTED]>
>>>>Sent: Tuesday, August 27, 2002 4:40 AM
>>>>Subject: Loading properties files
>>>>
>>>>
>>>>Hi,
>>>>
>>>>Could u tell me what is not correct with that :
>>>>
>>>>Before we had that ( the properties files were in 
>>>
>>WEB-INF/classes ) and
>>
>>>>that works :
>>>>
>>>>package com.a2a.util ;
>>>>public interface A2aConstantes
>>>>{
>>>> public static final String SCHEMA =
>>>>java.util.ResourceBundle.getBundle("db").getString("schema");
>>>>}
>>>>
>>>>
>>>>Now we want to have properties files in WEB-INF/config so we change
>>>>the file like this :
>>>>
>>>>package com.a2a.util ;
>>>>public interface A2aConstantes
>>>>{
>>>> public static final String SCHEMA =
>>>>
>>>
>>java.util.ResourceBundle.getBundle("/WEB-INF/config/db").getSt
>>ring("sche
>>
>>>>ma");
>>>>}
>>>>
>>>>But it doesnot work, it can't find the db.properties. I 
>>>
>>have tried with
>>
>>>>"WEB-INF/config/db" and "/WEB-INF/config/db.properties" but
>>>>it doesnot work too.
>>>>
>>>>Can u tell me what's wrong ?
>>>>
>>>>
>>>>
>>>>
>>>>Michenaud Laurent
>>>>- Adeuza -
>>>>[ Développeur Web - Administrateur Réseau ]
>>>>
>>>>
>>>>-- 
>>>>To unsubscribe, e-mail:
>>>><mailto:[EMAIL PROTECTED]>
>>>>For additional commands, e-mail:
>>>><mailto:[EMAIL PROTECTED]>
>>>>
>>>>
>>>>
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>>>>
>>>>
>>>>
>>>> 
>>>>
>>>
>>>
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Re: Loading Properties Files

[Will Hartung]

> From: <[EMAIL PROTECTED]>
> Subject: Loading Properties Files


> My problem is that the class cannot location my properties file. I am
> unable to
> use other suggested methods that I have noticed on this list since those
> problems
> involved Properties File within Servlets.
>
> After some testing, I determined for some reason the default directory it
> is looking
> for my properties file is the Windows System Directory (Determined this by
> opening
> a file in the default directory, outputing something in it and searching
> for the file).
>
> Anyone have any ideas on how to solve this problem? I do not want to hard
> code the
> exact location due to obvious reasons

The problem is that you appear to be loading a file with an absolute path,
versus the common form of load a properties file via the ClassLoader.

Fumble about with the ClassLoader.getResourceAsStream to have it hunt down
your properties file, and then feed that stream to your Properties.

public static yourMethod()
{
ClassLoader cl = YourClass.class.getClassLoader();
Properties prop = new Properties();
prop.load(cl.getResourceAsStream("yours.properties"));
}

Then, just drop your properties at the right place in your WARs classes
area.

Regards,

Will Hartung
([EMAIL PROTECTED])




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Re: Loading Properties Files

[Roberto Bouza]

 Thats right.

 If you don't have a .war file, you can use the classes dir inside your WEB-INF
dir, and create a new directory like "conf", the put inside all the properties
files. In that way the ClassLoader looks for  the files in there when you use
something like this:

try {
Properties props = new Properties();
InputStream in = getClass().getResourceAsStream("/conf/db.properties");
props.load(in);
..
  
 propertie1 = props.getProperty("propertie1");

 C'ya

Quoting Will Hartung <[EMAIL PROTECTED]>:

> > From: <[EMAIL PROTECTED]>
> > Subject: Loading Properties Files
> 
> 
> > My problem is that the class cannot location my properties file. I am
> > unable to
> > use other suggested methods that I have noticed on this list since those
> > problems
> > involved Properties File within Servlets.
> >
> > After some testing, I determined for some reason the default directory it
> > is looking
> > for my properties file is the Windows System Directory (Determined this
> by
> > opening
> > a file in the default directory, outputing something in it and searching
> > for the file).
> >
> > Anyone have any ideas on how to solve this problem? I do not want to hard
> > code the
> > exact location due to obvious reasons
> 
> The problem is that you appear to be loading a file with an absolute path,
> versus the common form of load a properties file via the ClassLoader.
> 
> Fumble about with the ClassLoader.getResourceAsStream to have it hunt down
> your properties file, and then feed that stream to your Properties.
> 
> public static yourMethod()
> {
> ClassLoader cl = YourClass.class.getClassLoader();
> Properties prop = new Properties();
> prop.load(cl.getResourceAsStream("yours.properties"));
> }
> 
> Then, just drop your properties at the right place in your WARs classes
> area.
> 
> Regards,
> 
> Will Hartung
> ([EMAIL PROTECTED])
> 
> 
> 
> 
> --
> To unsubscribe, e-mail:  
> <mailto:[EMAIL PROTECTED]>
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> <mailto:[EMAIL PROTECTED]>
> 
> 


-- 
= Roberto Bouza Fraga   =
===
  Research & Development Engineer
   Ella Cisneros Fontanals Holdings
 Ph: (305)-860-0116 / Fax:(305)-860-9401
===
   e-Mail:[EMAIL PROTECTED]

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RE: Loading Properties Files

[Jay Wright]

And if you have a .war file?  Then where would you put your properties
files?

> -Original Message-
> From: Roberto Bouza [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, December 04, 2002 2:49 PM
> To: Tomcat Users List
> Subject: Re: Loading Properties Files
> 
> 
> 
>  Thats right.
> 
>  If you don't have a .war file, you can use the classes dir 
> inside your WEB-INF
> dir, and create a new directory like "conf", the put inside 
> all the properties
> files. In that way the ClassLoader looks for  the files in 
> there when you use
> something like this:
> 
>   try {
>   Properties props = new Properties();
>   InputStream in = 
> getClass().getResourceAsStream("/conf/db.properties");
>   props.load(in);
> ..
>   
>  propertie1 = props.getProperty("propertie1");
> 
>  C'ya
> 
> Quoting Will Hartung <[EMAIL PROTECTED]>:
> 
> > > From: <[EMAIL PROTECTED]>
> > > Subject: Loading Properties Files
> > 
> > 
> > > My problem is that the class cannot location my 
> properties file. I am
> > > unable to
> > > use other suggested methods that I have noticed on this 
> list since those
> > > problems
> > > involved Properties File within Servlets.
> > >
> > > After some testing, I determined for some reason the 
> default directory it
> > > is looking
> > > for my properties file is the Windows System Directory 
> (Determined this
> > by
> > > opening
> > > a file in the default directory, outputing something in 
> it and searching
> > > for the file).
> > >
> > > Anyone have any ideas on how to solve this problem? I do 
> not want to hard
> > > code the
> > > exact location due to obvious reasons
> > 
> > The problem is that you appear to be loading a file with an 
> absolute path,
> > versus the common form of load a properties file via the 
> ClassLoader.
> > 
> > Fumble about with the ClassLoader.getResourceAsStream to 
> have it hunt down
> > your properties file, and then feed that stream to your Properties.
> > 
> > public static yourMethod()
> > {
> > ClassLoader cl = YourClass.class.getClassLoader();
> > Properties prop = new Properties();
> > prop.load(cl.getResourceAsStream("yours.properties"));
> > }
> > 
> > Then, just drop your properties at the right place in your 
> WARs classes
> > area.
> > 
> > Regards,
> > 
> > Will Hartung
> > ([EMAIL PROTECTED])
> > 
> > 
> > 
> > 
> > --
> > To unsubscribe, e-mail:  
> > <mailto:[EMAIL PROTECTED]>
> > For additional commands, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> > 
> > 
> 
> 
> -- 
> = Roberto Bouza Fraga   =
> ===
>   Research & Development Engineer
>Ella Cisneros Fontanals Holdings
>  Ph: (305)-860-0116 / Fax:(305)-860-9401
> ===
>e-Mail:[EMAIL PROTECTED]
> 
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RE: Loading Properties Files

[micael]

Depends upon what you want to do with the properties files and how you 
access them.  Some ways of accessing them require that the name to access 
be relative to the classpath, others don't.  You are better off to learn 
about properties files in this instance.  There is nothing peculiar to the 
web-structure that I know of that is important about locating properties 
files.

At 03:14 PM 12/4/2002 -0800, you wrote:

And if you have a .war file?  Then where would you put your properties
files?

> -Original Message-
> From: Roberto Bouza [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, December 04, 2002 2:49 PM
> To: Tomcat Users List
> Subject: Re: Loading Properties Files
>
>
>
>  Thats right.
>
>  If you don't have a .war file, you can use the classes dir
> inside your WEB-INF
> dir, and create a new directory like "conf", the put inside
> all the properties
> files. In that way the ClassLoader looks for  the files in
> there when you use
> something like this:
>
>   try {
>   Properties props = new Properties();
>   InputStream in =
> getClass().getResourceAsStream("/conf/db.properties");
>   props.load(in);
> ..
>
>  propertie1 = props.getProperty("propertie1");
>
>  C'ya
>
> Quoting Will Hartung <[EMAIL PROTECTED]>:
>
> > > From: <[EMAIL PROTECTED]>
> > > Subject: Loading Properties Files
> >
> >
> > > My problem is that the class cannot location my
> properties file. I am
> > > unable to
> > > use other suggested methods that I have noticed on this
> list since those
> > > problems
> > > involved Properties File within Servlets.
> > >
> > > After some testing, I determined for some reason the
> default directory it
> > > is looking
> > > for my properties file is the Windows System Directory
> (Determined this
> > by
> > > opening
> > > a file in the default directory, outputing something in
> it and searching
> > > for the file).
> > >
> > > Anyone have any ideas on how to solve this problem? I do
> not want to hard
> > > code the
> > > exact location due to obvious reasons
> >
> > The problem is that you appear to be loading a file with an
> absolute path,
> > versus the common form of load a properties file via the
> ClassLoader.
> >
> > Fumble about with the ClassLoader.getResourceAsStream to
> have it hunt down
> > your properties file, and then feed that stream to your Properties.
> >
> > public static yourMethod()
> > {
> > ClassLoader cl = YourClass.class.getClassLoader();
> > Properties prop = new Properties();
> > prop.load(cl.getResourceAsStream("yours.properties"));
> > }
> >
> > Then, just drop your properties at the right place in your
> WARs classes
> > area.
> >
> > Regards,
> >
> > Will Hartung
> > ([EMAIL PROTECTED])
> >
> >
> >
> >
> > --
> > To unsubscribe, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> > For additional commands, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> >
> >
>
>
> --
> = Roberto Bouza Fraga   =
> ===
>   Research & Development Engineer
>Ella Cisneros Fontanals Holdings
>  Ph: (305)-860-0116 / Fax:(305)-860-9401
> ===
>e-Mail:[EMAIL PROTECTED]
>
> --
> To unsubscribe, e-mail:
<mailto:[EMAIL PROTECTED]>
For additional commands, e-mail:
<mailto:[EMAIL PROTECTED]>

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Micael

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RE: Loading Properties Files

[Jay Wright]

If I understand you correctly, the properties file CANNOT be in the war
file, it needs to be external.  Right.

> -Original Message-
> From: micael [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, December 04, 2002 3:25 PM
> To: Tomcat Users List
> Subject: RE: Loading Properties Files
> 
> 
> Depends upon what you want to do with the properties files 
> and how you 
> access them.  Some ways of accessing them require that the 
> name to access 
> be relative to the classpath, others don't.  You are better 
> off to learn 
> about properties files in this instance.  There is nothing 
> peculiar to the 
> web-structure that I know of that is important about locating 
> properties 
> files.
> 
> At 03:14 PM 12/4/2002 -0800, you wrote:
> 
> >And if you have a .war file?  Then where would you put your 
> properties
> >files?
> >
> > > -Original Message-
> > > From: Roberto Bouza [mailto:[EMAIL PROTECTED]]
> > > Sent: Wednesday, December 04, 2002 2:49 PM
> > > To: Tomcat Users List
> > > Subject: Re: Loading Properties Files
> > >
> > >
> > >
> > >  Thats right.
> > >
> > >  If you don't have a .war file, you can use the classes dir
> > > inside your WEB-INF
> > > dir, and create a new directory like "conf", the put inside
> > > all the properties
> > > files. In that way the ClassLoader looks for  the files in
> > > there when you use
> > > something like this:
> > >
> > >   try {
> > >   Properties props = new Properties();
> > >   InputStream in =
> > > getClass().getResourceAsStream("/conf/db.properties");
> > >   props.load(in);
> > > ..
> > >
> > >  propertie1 = props.getProperty("propertie1");
> > >
> > >  C'ya
> > >
> > > Quoting Will Hartung <[EMAIL PROTECTED]>:
> > >
> > > > > From: <[EMAIL PROTECTED]>
> > > > > Subject: Loading Properties Files
> > > >
> > > >
> > > > > My problem is that the class cannot location my
> > > properties file. I am
> > > > > unable to
> > > > > use other suggested methods that I have noticed on this
> > > list since those
> > > > > problems
> > > > > involved Properties File within Servlets.
> > > > >
> > > > > After some testing, I determined for some reason the
> > > default directory it
> > > > > is looking
> > > > > for my properties file is the Windows System Directory
> > > (Determined this
> > > > by
> > > > > opening
> > > > > a file in the default directory, outputing something in
> > > it and searching
> > > > > for the file).
> > > > >
> > > > > Anyone have any ideas on how to solve this problem? I do
> > > not want to hard
> > > > > code the
> > > > > exact location due to obvious reasons
> > > >
> > > > The problem is that you appear to be loading a file with an
> > > absolute path,
> > > > versus the common form of load a properties file via the
> > > ClassLoader.
> > > >
> > > > Fumble about with the ClassLoader.getResourceAsStream to
> > > have it hunt down
> > > > your properties file, and then feed that stream to your 
> Properties.
> > > >
> > > > public static yourMethod()
> > > > {
> > > > ClassLoader cl = YourClass.class.getClassLoader();
> > > > Properties prop = new Properties();
> > > > prop.load(cl.getResourceAsStream("yours.properties"));
> > > > }
> > > >
> > > > Then, just drop your properties at the right place in your
> > > WARs classes
> > > > area.
> > > >
> > > > Regards,
> > > >
> > > > Will Hartung
> > > > ([EMAIL PROTECTED])
> > > >
> > > >
> > > >
> > > >
> > > > --
> > > > To unsubscribe, e-mail:
> > > > <mailto:[EMAIL PROTECTED]>
> > > > For additional commands, e-mail:
> > > > <mailto:[EMAIL PROTECTED]>
> > > >
> > > >
> > >
> > >
> > > --
> > > = Roberto Bouza Fraga   =
> > > 

Re: Loading Properties Files

[Will Hartung]

If you're using the ClassLoader to locate your properties files, then the
properties files need to be within your classpath. For WARs, the only places
that you really have much control over is the 'classes' directory.

The other issue is that your can not assume that you will be able to write
to you properties files.

Will

- Original Message -
From: "Jay Wright" <[EMAIL PROTECTED]>
To: "'Tomcat Users List'" <[EMAIL PROTECTED]>
Sent: Wednesday, December 04, 2002 3:37 PM
Subject: RE: Loading Properties Files


>
> If I understand you correctly, the properties file CANNOT be in the war
> file, it needs to be external.  Right.
>
> > -Original Message-
> > From: micael [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, December 04, 2002 3:25 PM
> > To: Tomcat Users List
> > Subject: RE: Loading Properties Files
> >
> >
> > Depends upon what you want to do with the properties files
> > and how you
> > access them.  Some ways of accessing them require that the
> > name to access
> > be relative to the classpath, others don't.  You are better
> > off to learn
> > about properties files in this instance.  There is nothing
> > peculiar to the
> > web-structure that I know of that is important about locating
> > properties
> > files.
> >
> > At 03:14 PM 12/4/2002 -0800, you wrote:
> >
> > >And if you have a .war file?  Then where would you put your
> > properties
> > >files?
> > >
> > > > -Original Message-
> > > > From: Roberto Bouza [mailto:[EMAIL PROTECTED]]
> > > > Sent: Wednesday, December 04, 2002 2:49 PM
> > > > To: Tomcat Users List
> > > > Subject: Re: Loading Properties Files
> > > >
> > > >
> > > >
> > > >  Thats right.
> > > >
> > > >  If you don't have a .war file, you can use the classes dir
> > > > inside your WEB-INF
> > > > dir, and create a new directory like "conf", the put inside
> > > > all the properties
> > > > files. In that way the ClassLoader looks for  the files in
> > > > there when you use
> > > > something like this:
> > > >
> > > >   try {
> > > >   Properties props = new Properties();
> > > >   InputStream in =
> > > > getClass().getResourceAsStream("/conf/db.properties");
> > > >   props.load(in);
> > > > ..
> > > >
> > > >  propertie1 = props.getProperty("propertie1");
> > > >
> > > >  C'ya
> > > >
> > > > Quoting Will Hartung <[EMAIL PROTECTED]>:
> > > >
> > > > > > From: <[EMAIL PROTECTED]>
> > > > > > Subject: Loading Properties Files
> > > > >
> > > > >
> > > > > > My problem is that the class cannot location my
> > > > properties file. I am
> > > > > > unable to
> > > > > > use other suggested methods that I have noticed on this
> > > > list since those
> > > > > > problems
> > > > > > involved Properties File within Servlets.
> > > > > >
> > > > > > After some testing, I determined for some reason the
> > > > default directory it
> > > > > > is looking
> > > > > > for my properties file is the Windows System Directory
> > > > (Determined this
> > > > > by
> > > > > > opening
> > > > > > a file in the default directory, outputing something in
> > > > it and searching
> > > > > > for the file).
> > > > > >
> > > > > > Anyone have any ideas on how to solve this problem? I do
> > > > not want to hard
> > > > > > code the
> > > > > > exact location due to obvious reasons
> > > > >
> > > > > The problem is that you appear to be loading a file with an
> > > > absolute path,
> > > > > versus the common form of load a properties file via the
> > > > ClassLoader.
> > > > >
> > > > > Fumble about with the ClassLoader.getResourceAsStream to
> > > > have it hunt down
> > > > > your properties file, and then feed that stream to your
> > Properties.
> > > > >
> > > > > public static 

RE: Loading Properties Files

[Jacob Kjome]

No, that's not true at all.

The examples already given will find properties files for you just fine 
whether the file is in a directory structure or inside an archive.  How do 
you think Java loads classes?  It works out of archives, no?

here are some various was to access a properties file ( or any resource, 
for that matter) in whether the app is deployed as a directory or as a .war 
file (even inside a .jar file in WEB-INF/lib)

This will load a file in WEB-INF/classes/conf or any jar file in the 
classpath with a package of "conf"...
getClass().getResourceAsStream("/conf/db.properties");

This will load a file relative to the current class.  For instance, if the 
class is "org.mypackage.MyClass", then the file would be loaded at 
"org.mypackage.conf.dbproperties".  Note that this is because we didn't 
prepend "/" to the path.  When that is done, the file is loaded from the 
root of the current classloader where this loads it relative to the current 
class...
getClass().getResourceAsStream("conf/db.properties");

this will find db.properties anywhere in the current classloader as long as 
it exists in a "conf" package...
getClass().getClassLoader().getResourceAsStream("conf/db.properties");


This will find the file in a "conf" directory inside the webapp (starting 
from the root).  This starts looking in the same directory as contains 
WEB-INF.  When I say "directory", I don't mean "filesystem".  This could be 
in a .war file as well as in an actual directory on the filesystem...
getServletContext().getResourceAsStream("/conf/db.properties");

of course you would probably not want just anyone seeing your db.properties 
file, so you'd probably want to put in inside WEB-INF of your webapp, so
getServletContext().getResourceAsStream("/WEB-INF/conf/db.properties");

If your db.properties exists in another classloader which your app has 
access to, you can reach it by using:
Thread.currentThread().getContextClassLoader().getResourceAsStream("conf/db.properties");

That will act similar to getClass().getClassLoader(), but it can see across 
all available classloaders where the latter can only see within the 
classloader that loaded the current class.

So, as you can see, you have quite a number of options.  There you go.

Jake

At 03:37 PM 12/4/2002 -0800, you wrote:

If I understand you correctly, the properties file CANNOT be in the war
file, it needs to be external.  Right.

> -Original Message-
> From: micael [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, December 04, 2002 3:25 PM
> To: Tomcat Users List
> Subject: RE: Loading Properties Files
>
>
> Depends upon what you want to do with the properties files
> and how you
> access them.  Some ways of accessing them require that the
> name to access
> be relative to the classpath, others don't.  You are better
> off to learn
> about properties files in this instance.  There is nothing
> peculiar to the
> web-structure that I know of that is important about locating
> properties
> files.
>
> At 03:14 PM 12/4/2002 -0800, you wrote:
>
> >And if you have a .war file?  Then where would you put your
> properties
> >files?
> >
> > > -Original Message-
> > > From: Roberto Bouza [mailto:[EMAIL PROTECTED]]
> > > Sent: Wednesday, December 04, 2002 2:49 PM
> > > To: Tomcat Users List
> > > Subject: Re: Loading Properties Files
> > >
> > >
> > >
> > >  Thats right.
> > >
> > >  If you don't have a .war file, you can use the classes dir
> > > inside your WEB-INF
> > > dir, and create a new directory like "conf", the put inside
> > > all the properties
> > > files. In that way the ClassLoader looks for  the files in
> > > there when you use
> > > something like this:
> > >
> > >   try {
> > >   Properties props = new Properties();
> > >   InputStream in =
> > > getClass().getResourceAsStream("/conf/db.properties");
> > >   props.load(in);
> > > ..
> > >
> > >  propertie1 = props.getProperty("propertie1");
> > >
> > >  C'ya
> > >
> > > Quoting Will Hartung <[EMAIL PROTECTED]>:
> > >
> > > > > From: <[EMAIL PROTECTED]>
> > > > > Subject: Loading Properties Files
> > > >
> > > >
> > > > > My problem is that the class cannot location my
> > > properties file. I am
> > > > > unable to
> > > > > use other suggested methods

RE: Loading Properties Files

[micael]

A .war file is just a wrapper for a web application.  I think he does not 
know what one is.  It is like a .zip or a .jar file.  Do you know that?

At 06:56 PM 12/4/2002 -0600, you wrote:

No, that's not true at all.

The examples already given will find properties files for you just fine 
whether the file is in a directory structure or inside an archive.  How do 
you think Java loads classes?  It works out of archives, no?

here are some various was to access a properties file ( or any resource, 
for that matter) in whether the app is deployed as a directory or as a 
.war file (even inside a .jar file in WEB-INF/lib)

This will load a file in WEB-INF/classes/conf or any jar file in the 
classpath with a package of "conf"...
getClass().getResourceAsStream("/conf/db.properties");

This will load a file relative to the current class.  For instance, if the 
class is "org.mypackage.MyClass", then the file would be loaded at 
"org.mypackage.conf.dbproperties".  Note that this is because we didn't 
prepend "/" to the path.  When that is done, the file is loaded from the 
root of the current classloader where this loads it relative to the 
current class...
getClass().getResourceAsStream("conf/db.properties");

this will find db.properties anywhere in the current classloader as long 
as it exists in a "conf" package...
getClass().getClassLoader().getResourceAsStream("conf/db.properties");


This will find the file in a "conf" directory inside the webapp (starting 
from the root).  This starts looking in the same directory as contains 
WEB-INF.  When I say "directory", I don't mean "filesystem".  This could 
be in a .war file as well as in an actual directory on the filesystem...
getServletContext().getResourceAsStream("/conf/db.properties");

of course you would probably not want just anyone seeing your 
db.properties file, so you'd probably want to put in inside WEB-INF of 
your webapp, so
getServletContext().getResourceAsStream("/WEB-INF/conf/db.properties");

If your db.properties exists in another classloader which your app has 
access to, you can reach it by using:
Thread.currentThread().getContextClassLoader().getResourceAsStream("conf/db.properties");

That will act similar to getClass().getClassLoader(), but it can see 
across all available classloaders where the latter can only see within the 
classloader that loaded the current class.

So, as you can see, you have quite a number of options.  There you go.

Jake

At 03:37 PM 12/4/2002 -0800, you wrote:

If I understand you correctly, the properties file CANNOT be in the war
file, it needs to be external.  Right.

> -Original Message-
> From: micael [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, December 04, 2002 3:25 PM
> To: Tomcat Users List
> Subject: RE: Loading Properties Files
>
>
> Depends upon what you want to do with the properties files
> and how you
> access them.  Some ways of accessing them require that the
> name to access
> be relative to the classpath, others don't.  You are better
> off to learn
> about properties files in this instance.  There is nothing
> peculiar to the
> web-structure that I know of that is important about locating
> properties
> files.
>
> At 03:14 PM 12/4/2002 -0800, you wrote:
>
> >And if you have a .war file?  Then where would you put your
> properties
> >files?
> >
> > > -Original Message-
> > > From: Roberto Bouza [mailto:[EMAIL PROTECTED]]
> > > Sent: Wednesday, December 04, 2002 2:49 PM
> > > To: Tomcat Users List
> > > Subject: Re: Loading Properties Files
> > >
> > >
> > >
> > >  Thats right.
> > >
> > >  If you don't have a .war file, you can use the classes dir
> > > inside your WEB-INF
> > > dir, and create a new directory like "conf", the put inside
> > > all the properties
> > > files. In that way the ClassLoader looks for  the files in
> > > there when you use
> > > something like this:
> > >
> > >   try {
> > >   Properties props = new Properties();
> > >   InputStream in =
> > > getClass().getResourceAsStream("/conf/db.properties");
> > >   props.load(in);
> > > ..
> > >
> > >  propertie1 = props.getProperty("propertie1");
> > >
> > >  C'ya
> > >
> > > Quoting Will Hartung <[EMAIL PROTECTED]>:
> > >
> > > > > From: <[EMAIL PROTECTED]>
> > > > > Subject: Loading Properties Files
> > > >
> > > >
> > 

RE: Loading Properties Files

[Craig R. McClanahan]

On Wed, 4 Dec 2002, micael wrote:

> Date: Wed, 04 Dec 2002 17:13:16 -0800
> From: micael <[EMAIL PROTECTED]>
> Reply-To: Tomcat Users List <[EMAIL PROTECTED]>
> To: Tomcat Users List <[EMAIL PROTECTED]>
> Subject: RE: Loading Properties Files
>
> A .war file is just a wrapper for a web application.  I think he does not
> know what one is.  It is like a .zip or a .jar file.  Do you know that?
>

A WAR file has the same format as a JAR file, but a servlet container --
and most especially the class loader for a webapp that the a servlet
container provides -- very definitely *does* know where to look in a WAR
for unpacked classes/resources (in /WEB-INF/classes) or JAR files
containing classes/resources (in /WEB-INF/lib).  That's why Tomcat is
perfectly capable of running a webapp directly from a WAR, without
unpacking it.

As long as you use the correct resource paths (as shown in the examples),
you can access properties files under /WEB-INF/classes (or from JAR files
in /WEB-INF/classes).  These calls are required to work whether the WAR is
unpacked or not.

Craig


> At 06:56 PM 12/4/2002 -0600, you wrote:
>
> >No, that's not true at all.
> >
> >The examples already given will find properties files for you just fine
> >whether the file is in a directory structure or inside an archive.  How do
> >you think Java loads classes?  It works out of archives, no?
> >
> >here are some various was to access a properties file ( or any resource,
> >for that matter) in whether the app is deployed as a directory or as a
> >.war file (even inside a .jar file in WEB-INF/lib)
> >
> >This will load a file in WEB-INF/classes/conf or any jar file in the
> >classpath with a package of "conf"...
> >getClass().getResourceAsStream("/conf/db.properties");
> >
> >This will load a file relative to the current class.  For instance, if the
> >class is "org.mypackage.MyClass", then the file would be loaded at
> >"org.mypackage.conf.dbproperties".  Note that this is because we didn't
> >prepend "/" to the path.  When that is done, the file is loaded from the
> >root of the current classloader where this loads it relative to the
> >current class...
> >getClass().getResourceAsStream("conf/db.properties");
> >
> >this will find db.properties anywhere in the current classloader as long
> >as it exists in a "conf" package...
> >getClass().getClassLoader().getResourceAsStream("conf/db.properties");
> >
> >
> >This will find the file in a "conf" directory inside the webapp (starting
> >from the root).  This starts looking in the same directory as contains
> >WEB-INF.  When I say "directory", I don't mean "filesystem".  This could
> >be in a .war file as well as in an actual directory on the filesystem...
> >getServletContext().getResourceAsStream("/conf/db.properties");
> >
> >of course you would probably not want just anyone seeing your
> >db.properties file, so you'd probably want to put in inside WEB-INF of
> >your webapp, so
> >getServletContext().getResourceAsStream("/WEB-INF/conf/db.properties");
> >
> >If your db.properties exists in another classloader which your app has
> >access to, you can reach it by using:
> 
>>Thread.currentThread().getContextClassLoader().getResourceAsStream("conf/db.properties");
> >
> >That will act similar to getClass().getClassLoader(), but it can see
> >across all available classloaders where the latter can only see within the
> >classloader that loaded the current class.
> >
> >So, as you can see, you have quite a number of options.  There you go.
> >
> >Jake
> >
> >At 03:37 PM 12/4/2002 -0800, you wrote:
> >
> >>If I understand you correctly, the properties file CANNOT be in the war
> >>file, it needs to be external.  Right.
> >>
> >> > -Original Message-
> >> > From: micael [mailto:[EMAIL PROTECTED]]
> >> > Sent: Wednesday, December 04, 2002 3:25 PM
> >> > To: Tomcat Users List
> >> > Subject: RE: Loading Properties Files
> >> >
> >> >
> >> > Depends upon what you want to do with the properties files
> >> > and how you
> >> > access them.  Some ways of accessing them require that the
> >> > name to access
> >> > be relative to the classpath, others don't.  You are better
> >> > off to learn
> >> > about properties files in this instance.  There is nothing
> >> 

Tomcat Classloaders and loading properties files

[Mike Curwen]

Hello,

So I'm writing a few library classes that I hope I'll be able to use
over and over again. Because goodness knows, someone needs to invent the
wheel again. ;)
 
Anyways.. I want my classes to use properties files for configuration,
and what I really want is something like:

1. Place the library.jar file in WEB-INF/lib
2. The classes will load the default properties file (included with the
jar) but if you want to override the values, you can provide your own
properties file in WEB-INF/classes
 
I'm expecting that when I go to load the properties, it will look in
WEB-INF/classes *first*, from this snip from the CLASSLOADER doc

Therefore, from the perspective of a web application, class or resource
loading looks in the following repositories, in this order:

/WEB-INF/classes of your web application 
/WEB-INF/lib/*.jar of your web application 


Ok so far?

So now.. the *code* to make that work?

getClass().getClassLoader().getResourceAsStream(property.filename.starti
ng.with.slash)
 
I've been using just getClass().getResourceAsStream(), but I think to
get the Tomcat-guaranteed behaviour, I need to use the classloader.
And I'm thinking this will still work for non web-app uses of
library.jar
 
Does all that seem accurate? I'm just thinking out loud. ;)

---
Mike Curwen   
Intermediate Programmer   www.gb-im.com
---
     ___   __  __ 
 / ___| | __ )  |_ _| |  \/  |
| |  _  |  _ \   _   | |  | |\/| |
| |_| | | |_) | |_|  | |  | |  | |
 \| |/  |___| |_|  |_|


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RE: Tomcat Classloaders and loading properties files

[Shapira, Yoav]

Howdy,

>I'm expecting that when I go to load the properties, it will look in
>WEB-INF/classes *first*, from this snip from the CLASSLOADER doc
>
>Therefore, from the perspective of a web application, class or resource
>loading looks in the following repositories, in this order:
>
>/WEB-INF/classes of your web application
>/WEB-INF/lib/*.jar of your web application
>
>
>Ok so far?

Yup.

>getClass().getClassLoader().getResourceAsStream(property.filename.start
i
>ng.with.slash)
>
>I've been using just getClass().getResourceAsStream(), but I think to
>get the Tomcat-guaranteed behaviour, I need to use the classloader.
>And I'm thinking this will still work for non web-app uses of
>library.jar
>
>Does all that seem accurate? I'm just thinking out loud. ;)

getClass().getResource() just delegated to the classloader.  So you're
fine with just getClass().getResource() (or getResourceAsStream).

Looks good so far...

Yoav Shapira



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