java 读properties文件

public class PropertiesTool
{
    /**
     * 日志打印对象
     */
    private static final DebugLog LOGGER = LogFactory.getDebugLog(AlarmInfoConfigHolder.class);
   
    /**
     * 存放properties文件配置项
     */
    private static Map<String, String> proMap = new HashMap<String, String>();
   
    /**
     * 加载properties文件
     * @return void [返回类型说明]
     * @exception throws [违例类型] [违例说明]
     * @see [类、类#方法、类#成员]
     */
    @SuppressWarnings("rawtypes")
    public static void loadProperties()
    {
        InputStream in = PropertiesTool.class.getClassLoader()
                .getResourceAsStream("conf/common/resource.properties");
        Properties monitorPro = new Properties();
        try
        {
            monitorPro.load(in);
            in.close();
        }
        catch (IOException e)
        {
            LOGGER.error("No monitorResource.properties defined error");
        }
       
        try
        {
            Enumeration en = monitorPro.propertyNames();
            while (en.hasMoreElements())
            {
                String key = (String)en.nextElement();
                String value = monitorPro.getProperty(key);
                proMap.put(key, value);
            }
        }
        catch (Exception e)
        {
            LOGGER.error("ConfigInfoError:" + e.toString());
        }
    }
   
    /**
     * 根据properties键值获取value
     * @param key 键值
     * @return [参数说明]
     *
     * @return String [返回类型说明]
     * @exception throws [违例类型] [违例说明]
     * @see [类、类#方法、类#成员]
     */
    public static String getProperty(String key)
    {
        return proMap.get(key);
    }
}