Accessing a .properties file from a servlet
Hi,
I want to access offset.properties, located in tomat/webapps/MyApp/web-inf/classes from my servlet, also int the same directory, of course.
I tried using:
Properties offsetProperties = new Properties();
offsetProperties.load(new FileInputStream("offset.properties"));
but it threw a file not found exception....
Where do i have to put the .properties file, and what do i put in for the path, where i have "offset.preoperties" ?
Thanks alot for any help
X
ThePhatBarren.
[548 byte] By [
TheBarren] at [2007-9-26 2:39:34]
You need to load the properties file from the classpath. Try:
InputStream is = getClass().getResourceAsStream("servlet.properties");
if (is != null)
{
Properties props = new Properties();
props.load(is);
}
If you do that, you can place the properties file anywhere in the classpath and have it load.
smiths at 2007-6-29 10:12:19 >
Try not to associate the location of the class file a class was loaded from and the current directory - they are completely unrelated. Sometimes they happen to be the same (only when you execute the java command in the directory where unpackaged top-level classes reside), but the two concepts are different.
smiths at 2007-6-29 10:12:19 >
> > InputStream is = getClass().getResourceAsStream("servlet.properties");
>
BTW, the code posted above will load the properties file from the same package this class was loaded from. If your class is not in a package, the result will be the same. But say you have this setup:
WEB-INF/classes
- com
- mycorp
- package
- Servlet.class
Then the code above will access:
WEB-INF/classes
- com
- mycorp
- package
- servlet.properties
If you use:
InputStream is = getClass().getResourceAsStream("/servlet.properties");
Then it will look here:
WEB-INF/classes
- servlet.properties
BTW 2 - the search algorithm above is simplified for brevity. See the javadocs for the full algorithm.
smiths at 2007-6-29 10:12:19 >
Hey Thanks alot!
I have never used ther Class methods before.....
I was looking through it's API to try to find a similar way to get the FileOutputStream required to write to the properties after i modify it, but couldn't see a way... Can u help me there?
Thanks a million
