java中找到資源檔的路徑

最近因為寫一個東西,要把配置儲存在xml裡,可是如何找到xml哪? 是個問題 看了JWhich,寫了個尋找資源檔路徑的小函數. (不知道是不是適合所有情況,如果有不對,請指出) 

    /**
     * 如果找不到,則返回null
     * @param sResourceName
     * @return
     */
    public static String getResourceFilePath(String sResourceName)
    {
        if (!sResourceName.startsWith("/"))
        {
            sResourceName = "/" + sResourceName;
        }        java.net.URL classUrl = JWhichUtil.class.getResource(sResourceName);        if (classUrl == null)
        {
            System.out.println("/nResource '" + sResourceName + "' not found in /n'"
                            + System.getProperty("java.class.path") + "'");
           
            return null;
        }
        else
        {
            System.out.println("/nResource '" + sResourceName + "' found in /n'" + classUrl.getFile() + "'");
            return classUrl.getFile();
        }    }