Changing a settings file in a Java program

Hi,
When I install a Java application, it requires a connection to a database. The flaw in this program is that it has a default database name (DSN) to which it tries to connect. Unless you happen to have that data source on your machine, it will fail. When installing this application, it never gives you the option to edit the DSN name. Can anyone suggest how I might change this? I am not a java programmer, so be gentle!. I suppose i need to change one of the source files for this.
thanks for any assistance
Mike
mikeandbeeAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

yorenCommented:
I would first check the documentation of this application. If this application ignores all sensibility and does not give you the option to change the DSN, read on.

You'll have to change one of two things, depending on the application. It might be reading the DSN from a properties (settings) file, or it may be embedded in the application.

The easiest way to find the problem is to unpack the source files and use an editor that lets you search for the DSN string in multiple files. If you find it in a properties file, you won't have to recompile. If you find it in the source, you'll have to run "javac <file>" for the changed file.

Yuval
0
objectsCommented:
Two options:

1. Pass the DSN as a paramater on the program as a command line:

java -Ddsn=xyz mypackage.MyClass

2. Store the DSN in a properties files, and have your program read it from there.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
mikeandbeeAuthor Commented:
I can change the DSN in the properties file AFTER it has been installed, but what I want is for the program to give me the option to add/find a DSN on my system, and not hardcode the DSN into the settings file. Is it possible tochange this with little knowledge of Java? Do i need a Java programming environment to do this (which i don't have)?

thanks
0
Cloud Class® Course: C++ 11 Fundamentals

This course will introduce you to C++ 11 and teach you about syntax fundamentals.

objectsCommented:
> Is it possible tochange this with little knowledge of Java?

Define little.
Sounds like this would require a code change.

> Do i need a Java programming environment
to do this (which i don't have)?

Yes.
0
Venci75Commented:
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
Answered by: objects
Please leave any comments here within the next seven days.
 
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!
 
Venci75
EE Cleanup Volunteer
0
SpideyModCommented:
per recommendation

SpideyMod
Community Support Moderator @Experts Exchange
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Java

From novice to tech pro — start learning today.