Loading configuration parameters from textfile into a program
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Enumeration;
import java.util.Properties;
public class Main {
Properties config;
/**
* Loads configuration parameters from a textfile and print them out.
*/
public void loadConfigFile() {
//Load configuration file
String filename = "conf/systemconfig.txt";
config = new Properties();
try {
config.load(new FileInputStream(filename));
} catch (FileNotFoundException ex) {
ex.printStackTrace();
return;
} catch (IOException ex) {
ex.printStackTrace();
return;
}
//Print out the configuration parameters
Enumeration en = config.keys();
System.out.println("********** System configuration **********");
while (en.hasMoreElements()) {
String key = (String) en.nextElement();
System.out.println(key + " => " + config.get(key));
}
}
/**
* Starts the program
*
* @param args the command line arguments
*/
public static void main(String[] args) {
new Main().loadConfigFile();
}
}
This is the output after printing out the loaded configuration parameters:
********** System configuration **********
parameter2 => value2
parameter1 => value1
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