Loading properties file in wbelogic without restarting the server

I need some help regarding loading properties files in Weblogic without restarting the server. Here are details for the same :

All the text on our site is referred to as Screencopies that are used for localisation. In the code the screen copies are accessed through ResourceManager. This data is kept in locale based properties file which are about 400KB each (4 locales). These properties files are loaded at the time of Weblogic start up.

Currently we are loading these properties files through weblogic class loader at the startup.

Weblogic servers have to be restarted for any change in these files. It is not possible for us to restart the servers frequently. How can we make frequent changes to Screencopies, which means that we should be able to deploy these files at run time without restarting the weblogic servers.

The version of weblogic we are using is as below
Weblogic 8.1 Sp4 on windows 2003 , using JDK 1.4.2

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Even If you do HOT deployment, the properties file will be reflected in weblogic only after restarts the server. Because it will not point to the new instance of the resource bundle, while server is running if you put new props. file it won;t take until you restart the server...


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1.your application can scan the file system to detect new versions of the file

2.You can write your own classloader with automatic configuration file reloading.

Hi Om,

We are doing exactly that. What we do is we use a FileListener to check the changes in the file.

Also initially we worked around this by creating a new object everytime the properties file was referenced - something like this:

                Properties p = new Properties();
            InputStream is = CSVReportCreation.class.getClassLoader().getResourceAsStream("one.properties");

The above code was in the constructor of the class (Reports in our case).
So evertime a new object is created - the new one.properties file was loaded w/o requiring to restart weblogic.

Hope that helps,
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