private String errorMsg(String attr, String elementName) {
        return new StringBuilder(256).append("Attribute '")
                .append(attr).append("' is needed for ").append(elementName).toString();
    }
Parse website configure file information

@return    the website configure object
inlong-tubemq/tubemq-server/src/main/java/org/apache/inlong/tubemq/server/master/web/simplemvc/conf/ConfigFileParser.java