docs: private Map<?, ?> aliasMap(Map<?, ?> rowMap) {
  		if (MapUtil.isEmpty(this.headerAlias)) {
  			return rowMap;
  		}
  
  		final Map<Object, Object> filteredMap = new LinkedHashMap<>();
  		String aliasName;
  		for (Entry<?, ?> entry : rowMap.entrySet()) {
  			aliasName = this.headerAlias.get(entry.getKey());
  			if (null != aliasName) {
  				// 别名键值对加入
  				filteredMap.put(aliasName, entry.getValue());
  			} else if (false == this.onlyAlias) {
  				// 保留无别名设置的键值对
  				filteredMap.put(entry.getKey(), entry.getValue());
  			}
  		}
  		return filteredMap;
  	}