Shop/src/util/PropertiesUtil.java

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package util;

import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Hashtable;
import java.util.Properties;

public class PropertiesUtil
{

    private static Hashtable hash = new Hashtable();
    private static final String FILENAME = "upload.properties";

    private PropertiesUtil()
    {
    }

    private Properties getProperties(String fileName)
    {
        InputStream input = null;
        Properties prop = null;
        try
        {
            prop = (Properties)hash.get(fileName);
            if(prop == null)
            {
                try
                {
                    input = new FileInputStream(fileName);
                }
                catch(Exception ex)
                {
                    if(fileName.startsWith("/"))
                    {
                    	input = getClass().getResourceAsStream(fileName);
                    } else
                    {
                        input = getClass().getResourceAsStream((new StringBuilder("/")).append(fileName).toString());
                    }
                }
                prop = new Properties();
                prop.load(input);
                if(input != null)
                {
                    input.close();
                }
            }
        }
        catch(Exception e)
        {
            return null;
        }
        return prop;
    }

    public String getProperty(String key)
    {
    	try{
        Properties prop = getProperties("upload.properties");
        if(prop == null)