How to load Java properties file dynamically using weblogic server

Hi,
We are using Java properties file in Java code. Properties in java properties file are frequently modified. If I keep these properties file in project classpath or as part of war, I will have to redeploy application after each change.
We are using Weblogic Server.
Can you please suggest me how can this properties file be loaded at weblogic server startup. Then in that case, how to refer property file in Java code?
What is the best practice for this?
Thanks,
Parshant

Another alternative is, keep the property file in any pre-defined location. Write a class which reads the properties from the file and returns the one which is requested by caller and deploy this class. Whenever you have to change the properties just update the property file on server and next call to fetch the property should return the updated one.
Downside of this approach is file I/O everytime. To overcome that you can actually "cache" the properties in a hashmap. Basically when any property if requested, first check the hashmap, if not found then only read from property file and also update in hash map. Next time same property will be returned from hash map itself. The hash map will be cleared at every server restart since its in the memory. You will also need to build a method to clear the hashmap when you update the values in the property file on server.
This solution would be suitable for small size files and when network overhead of calling a DB needs to be avoided.

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Ray,
The build number indicates that you have not upgraded to Service Pack 2 of
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from the issues which were fixed in the 2 service packs.
Regards,
Anurag
"Ray Yan" <[email protected]> wrote in message
news:[email protected]...
>
Raj,
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"Raj Alagumalai" <[email protected]> wrote:
Hello Ray,
Can you let me know if you are using the GA version of WebLogic Workshop
or
if you have the latest Service Pack.
Thank You,
Raj Alagumalai
WebLogic Workshop Support
"Ray Yan" <[email protected]> wrote in message
news:[email protected]...
Anurag:
Thanks for your response!
By moving the property files to WEB-INF/classes from WEB-INF, we arealmost there.
But we have a follow up problem. We use a static initializer to loadthe
log4j
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static {
try {
ClassLoader cl= (new Log()).getClass().getClassLoader();
InputStream is = cl.getResourceAsStream(logfile);
Properties props = new Properties();
props.load(is);
PropertyConfigurator.configure(props);
} catch (Exception e) {
e.printStackTrace();
When we run jwsCompile, we keep getting this:
Compiling: com/****/TestWS.jws
weblogic.utils.AssertionError: ***** ASSERTION FAILED *****[weblogic.management.Admin
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Thanks,
Ray
"Anurag Pareek" <[email protected]> wrote:
Ray,
ResourceBundle looks for the properties file in the current thread's
classpath.
Since a Workshop webservice's project is nothing but a webapp, the
properties files can be kept in the WEB-INF/classes directory, which
is part
of the webapp classpath.
You can also use
Thread.currentThread().getContextClassLoader().getResourceAsStream("MyProp
s
properties"); to get access to the properties file.
Thanks,
Anurag
"Ray Yan" <[email protected]> wrote in message
news:[email protected]...
How do we tell Workshop 7.0 where to look for Java properties files(loaded by
PropertyResouceBundle in code) ?
Thanks,
Ray

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private final String PROP_FILE_NAME = "my.properties";
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} catch(IOException e) {
//handle error ...
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Does anybody have an idea as to how to resolve our problem?
Any help will be greatly appreciated!
Thanks in advance!
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URLs try to address this issue for cross-platform file reference.
I'd try doing something like:
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Yes I tried that also.
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Dump all of your class files into a directory.
Use the File class to list all files and iterateover
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>
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>
Load all of the classes in this directory, thatway
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>
From this point you should be able to just get a
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it's called in, which will be the system classloader.
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Eddie404 wrote:
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null
null

yes perhaps no one know how we can to do, but i'm using URL class to load my file so I suppose that I have two mode
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aa
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this is an example : your source:
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How to load Java properties file dynamically using weblogic server

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