for (Map.Entry<String, List<SysEquipmentAxisResp>> stringListEntry : collect.entrySet()) { JSONObject device = new JSONObject(); int sum1 =0; device.put("storeIds", stringListEntry.getKey()); List<SysEquipmentAxisResp> sysEquipmentInfos1 = collect.get(stringListEntry.getKey()); List<NewSysEquipmentAxisResp> newSysEquipmentInfos = new ArrayList<>(); if (!ObjectUtils.isEmpty(example.getStoreId())) { for (SysEquipmentAxisResp sysEquipmentAxisResp : sysEquipmentInfos1) { NewSysEquipmentAxisResp newSysEquipmentAxisResp = new NewSysEquipmentAxisResp(); BeanUtils.copyProperties(sysEquipmentAxisResp,newSysEquipmentAxisResp); SysVideoInfo sysVideoInfo = videoInfoMapper.selectByStreamInfoId((newSysEquipmentAxisResp.getStreamInfoId()); newSysEquipmentAxisResp.setMonitorRoll(sysVideoInfo.getMonitorRoll()); newSysEquipmentAxisResp.setMonitorYaw(sysVideoInfo.getMonitorYaw()); newSysEquipmentAxisResp.setMonitorPitch(sysVideoInfo.getMonitorPitch()); newSysEquipmentAxisResp.setHeartX(sysVideoInfo.getHeartX()); newSysEquipmentAxisResp.setHeartY(sysVideoInfo.getHeartY()); newSysEquipmentAxisResp.setHeartZ(sysVideoInfo.getHeartZ()); newSysEquipmentInfos.add(newSysEquipmentAxisResp); } device.put("list", newSysEquipmentInfos); } sum1 = sysEquipmentInfos1.stream().mapToInt(SysEquipmentAxisResp::getEquipmentState).sum(); device.put("equipmentState",sum1); floorArr.add(device); }优化下代码

可以考虑使用Lambda表达式和Stream API来简化代码，同时避免循环中的冗余判断和变量的多次赋值。具体优化方法如下：

List<JSONObject> floorArr = collect.entrySet().stream().map(stringListEntry -> {
    JSONObject device = new JSONObject();
    device.put("storeIds", stringListEntry.getKey());
    List<NewSysEquipmentAxisResp> newSysEquipmentInfos = stringListEntry.getValue().stream().map(sysEquipmentAxisResp -> {
        NewSysEquipmentAxisResp newSysEquipmentAxisResp = new NewSysEquipmentAxisResp();
        BeanUtils.copyProperties(sysEquipmentAxisResp, newSysEquipmentAxisResp);
        SysVideoInfo sysVideoInfo = videoInfoMapper.selectByStreamInfoId(newSysEquipmentAxisResp.getStreamInfoId());
        newSysEquipmentAxisResp.setMonitorRoll(sysVideoInfo.getMonitorRoll());
        newSysEquipmentAxisResp.setMonitorYaw(sysVideoInfo.getMonitorYaw());
        newSysEquipmentAxisResp.setMonitorPitch(sysVideoInfo.getMonitorPitch());
        newSysEquipmentAxisResp.setHeartX(sysVideoInfo.getHeartX());
        newSysEquipmentAxisResp.setHeartY(sysVideoInfo.getHeartY());
        newSysEquipmentAxisResp.setHeartZ(sysVideoInfo.getHeartZ());
        return newSysEquipmentAxisResp;
    }).collect(Collectors.toList());
    if (!ObjectUtils.isEmpty(example.getStoreId())) {
        device.put("list", newSysEquipmentInfos);
    }
    int sum1 = stringListEntry.getValue().stream().mapToInt(SysEquipmentAxisResp::getEquipmentState).sum();
    device.put("equipmentState", sum1);
    return device;
}).collect(Collectors.toList());

使用Stream API可以将遍历、转换和收集操作合并到一起，使代码更加简洁易懂。同时，避免了冗余判断和变量的多次赋值，提高了代码的效率。