list整理成Map

Map<String, List<CodeDeviceMonitorDetailCommandEntity>> map =
        codeDeviceMonitors.stream().collect(Collectors.toMap(CodeDeviceMonitorDetailCommandEntity::getAxisName,
            p ->  {
                List<CodeDeviceMonitorDetailCommandEntity> getList = new ArrayList<>();
                getList.add(p);
                return getList;
            },
            (List<CodeDeviceMonitorDetailCommandEntity> value1,
             List<CodeDeviceMonitorDetailCommandEntity> value2) -> {
                value1.addAll(value2);
                return value1;
            }
));