code: protected static Map<String, Object> eventSendLocationInfo(XMLEventReader reader) throws XMLStreamException{
          Map<String, Object> sendLocationInfo = new HashMap<String, Object>();
          while(reader.hasNext()){
              XMLEvent event = reader.nextEvent();
              if (event.isStartElement()) {
                  String tagName = event.asStartElement().getName()
                          .toString();
                  sendLocationInfo.put(tagName, reader.getElementText());
              }
          }
          return sendLocationInfo;
      }
docs: Event为location_select时触发
  @param reader reader
  @return 读取结果
  @throws XMLStreamException XML解析异常