Relative path for servlet property file.

Question

I have the following java file. When I use the absolute path for the configFile, it works. I would like to know how I could use it as relative path as in installation, the name of the directory could change.
How do I fix the problem? Thank you.
---------------------- LoadProperties.java ----------------
import java.util.*;
import java.io.*;
public class LoadProperties {
private String driver="";
private String dbURL="";
private String login="";
private String password="";
static public void main(String[] args) {
LoadProperties lp = new LoadProperties();
} // main
public LoadProperties() {
//String configFile = "C:/1LMS/web-app/WEB-INF/config/db.properties";
String configFile = getClass().getResource("config/db.properties").toString(); <--- This line could not find the db.properties file.
Properties Prop = new Properties();
try {
FileInputStream configStream = new FileInputStream(configFile);
Prop.load(configStream);
configStream.close();
} catch(IOException e) {
          System.out.println("Error: Cannot laod configuration file ");
driver =Prop.getProperty("driver");
     dbURL = Prop.getProperty("dbURL");
     login = Prop.getProperty("login");
password = Prop.getProperty("password");
printResult();
} //Load Property
private void printResult() {
     System.out.println("Driver = " + driver);
     System.out.println("dbURL = " + dbURL);
     System.out.println("Login = " + login);
System.out.println("PSWD = " + password);
} // class

Answer 1

hi there,
had the same problem... you need to use following API:
http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/ServletContext.html#getRealPath(java.lang.String)
In your case something like that:
// get the servlet context
ServletContext context = getServletContext();
// directory name where the file is located
String realPath = context.getRealPath("/config");
// get real path to your file
String propertyPath = real+"filename.txt";
hope that helps!!
minu