java - Servlet init and Class -

i have programm servlet :

@webservlet("/controler") public class controler extends httpservlet {  } 

i need use property file : file.properties in program. load it, have class :

public class proploader {      private final static string m_propertyfilename = "file.properties";      public static string getproperty(string a_key){          string l_value = "";          properties l_properties = new properties();         fileinputstream l_input;         try {              l_input = new fileinputstream(m_propertyfilename); // file not found exception             l_properties.load(l_input);              l_value = l_properties.getproperty(a_key);              l_input.close();         } catch (exception e) {             e.printstacktrace();         }          return l_value;      }  } 

my property file in webcontent folder, , can access :

string path = getservletcontext().getrealpath("/file.properties"); 

but can't call theses methods in class servlet...

how can access property file in proploader class ?

if want read file within webapp structure, should use servletcontext.getresourceasstream(). , of course, since load webapp, need reference object representing webapp: servletcontext. can such reference overriding init() in servlet, calling getservletconfig().getservletcontext(), , pass servlet context method loading file:

@webservlet("/controler") public class controler extends httpservlet {     private properties properties;      @override     public void init() {         properties = proploader.load(getservletconfig().getservletcontext());     } }  public class proploader {      private final static string file_path = "/file.properties";      public static properties load(servletcontext context) {         properties properties = new properties();         properties.load(context.getresourceasstream(file_path));         return properties;     } }     

note exceptions must handled.

another solution put file under web-inf/classes in deployed webapp, , use classloader load file: getclass().getresourceasstream("/file.properties"). way, don't need reference servletcontext.