响应的XML转换成实体

/**
 * 
 * 响应的XML转换成实体
 *
 * @param resultString
 * @return
 */
private ResponseReturnEntity getResultEntity(String resultString) {
    Element root = null;
    Element transInfo = null;
    try {
        SAXReader reader = new SAXReader();
        InputStream in = new ByteArrayInputStream(resultString.getBytes("utf8"));
        Document document = reader.read(in);
        root = document.getRootElement();
        transInfo = root.element("TransInfo");
        ResponseReturnEntity entity = new ResponseReturnEntity();
        if ("0000".equals(transInfo.element("RspCode").getText())) {
            entity.setRspCode(transInfo.element("RspCode").getText());
            entity.setReturnStatus(transInfo.element("ReturnStatus").getText());
            entity.setReturnSerialId(transInfo.element("ReturnSerialId").getText());
            //0未知,1退款中,2退款成功,3退款失败,4其他（比如微信人工处理等）
            switch (entity.getReturnStatus()) {
                case "0":
                    entity.setDesc("未知");
                    break;
                case "1":
                    entity.setDesc("退款中");
                    break;
                case "2":
                    entity.setDesc("退款成功");
                    break;
                case "3":
                    entity.setDesc("退款失败");
                    break;
                case "4":
                    entity.setDesc("用户账号失效无法原路退还,需线下退款");
                    break;
            }
            return entity;
        }
        return entity;
    } catch (Exception ex) {
        Logger.info("响应的XML转换成实体有异常" + ex.toString());
        return null;
    }
}