Reading a config file

[nationavon]

I am writing an application that needs to read a config file. I understand how to read the file using File, FileReader, and BufferedReader. My config file contains information in the following format:

user = aaron

What would be the best way to get the value of user? I have considered using tokenizer to split on the spaces. I just wanted to be sure this was standard practice in java. If there is a package that will process a config file information would be greatly appreciated.

Nathan

 

[greeneka]

Hi Nathan,

you should try using

java.util.Properties

to load your config file:

http://java.sun.com/j2se/1.4.2/docs/api/java/util/Properties.html

If you create a new

Properties

object and then use the

load()

function to load in the file from the

FileInputStream

, you can then use the

getProperty()

function to retrieve the values you're looking for (and even specify a default value if none is present in the config file)

 

[sedj]

Compining java.util.Properties and an InputStream will allow you to retrieve name=value pairs ...

try {
Properties p = new Properties();
InputStream in = new FileInputStream("config.txt"
p.load(in);
} catch (IOException ioe) {
//handle error ...
}

System.out.println(props.get("user&quot);

 

[sedj]

Sorry greeneka - missed your post whilst typing !!!
Also, I missed its not get() but getProperty() ....

 

[nationavon]

That worked beautifully! Thanks for your help.

Nathan

 

[hologram]

There is a recent article (August 8, 2003) in JavaWorld at :

http://www.javaworld.com/javaworld/javaqa/2003-08/01-qa-0808-property.html?