JAVA:Property File Reader Example

-------------------------------------------------------------------------------------------------------------
Java Code:
-------------------------------------------------------------------------------------------------------------
import java.util.HashMap;
import java.util.Map;
import java.util.PropertyResourceBundle;
import java.util.ResourceBundle;


public class PropertyReader {
   
    public static final String MESSAGE_FILE = "com.wil.util.Messages";
    public static final String DB_PRECEDURE_FILE = "com.wil.util.DBProcedures";

    private static PropertyReader propReader = new PropertyReader();
   
    private Map<String,PropertyResourceBundle> bundles = new HashMap<String,PropertyResourceBundle>();
   
   
    private PropertyReader(){
       
    }
   
    public static PropertyReader getInstance(){
        return propReader;
    }
   
   
    public String getMessage(String bundleName, String messagekey){
        PropertyResourceBundle propertyResBd = bundles.get(bundleName);
        if(propertyResBd == null){
            propertyResBd = (PropertyResourceBundle) ResourceBundle.getBundle(bundleName);
            bundles.put(bundleName, propertyResBd);
        }
       
        return propertyResBd.getString(messagekey);
    }
}

-------------------------------------------------------------------------------------------------------------
Use :
-------------------------------------------------------------------------------------------------------------
    PropertyReader messagesReader = PropertyReader.getInstance();
    String errMessage = messagesReader.getMessage(PropertyReader.MESSAGE_FILE,"name_cannot_empty");
    String dbMessage = messagesReader.getMessage(PropertyReader.DB_PRECEDURE_FILE,"name_cannot_empty");

-------------------------------------------------------------------------------------------------------------
Place properties files into "com.wilbert.util" package :
-------------------------------------------------------------------------------------------------------------
Messages.properties

    name_cannot_empty=Name cannot be empty

DBProcedures.properties

    #SchemaName
    SchemaName=TESTDB