目前該函數(shù)取多個值需要多次和數(shù)據(jù)庫交互，并且代碼相對冗余，特地將改進后的代碼貢獻出來

 /**
     * 根據(jù)對象獲取配置(getValueByKey)
     * @param merId 商戶id
     * @param clazz 對象類
     * @return Object
     */
    @Override
    public <T> T getConfigObj(Integer merId, Class<T> clazz) {
        return getConfigObj(merId, 0, clazz);
    }

    /**
     * 根據(jù)對象獲取配置(getValueByKey)
     * @param merId 商戶id
     * @param adminId 管理員id
     * @param clazz 對象類
     * @return Object
     */
    @Override
    public <T> T getConfigObj(Integer merId, Integer adminId, Class<T> clazz) {
        //獲取對象屬性名稱
        List<String> fieldNames = Arrays.stream(clazz.getDeclaredFields())
                .filter(e->!e.getName().equals(serialVersionUID))
                .map(Field::getName).collect(Collectors.toList());
        //從數(shù)據(jù)庫查詢集合
        LambdaQueryWrapper<SystemConfig> lqw = Wrappers.lambdaQuery();
        lqw.select(SystemConfig::getName, SystemConfig::getValue);
        lqw.eq(SystemConfig::getMerId, merId);
        lqw.eq(SystemConfig::getAdminId, adminId);
        lqw.eq(SystemConfig::getStatus, 0);
        lqw.in(SystemConfig::getName, fieldNames);
        List<SystemConfig> list = dao.selectList(lqw);
        //將集合轉(zhuǎn)換成對象實體類
        HashMap<String, Object> map = new HashMap<>();
        list.forEach(e-> map.put(e.getName(), e.getValue()));
        Object bean = BeanUtil.mapToBean(map, clazz, false, new CopyOptions());
        return (T) bean;
    }

    /**
     * 根據(jù)對象保存配置(updateOrSaveValueByName)
     * @param merId 商戶id
     * @param obj 對象
     * @return Object
     */
    @SneakyThrows
    @Override
    public Boolean setConfigObj(Integer merId, Object obj) {
        return setConfigObj(merId, 0, obj);
    }

    /**
     * 根據(jù)對象保存配置(updateOrSaveValueByName)
     * @param merId 商戶id
     * @param adminId 管理員id
     * @param obj 對象
     * @return Object
     */
    @SneakyThrows
    @Override
    public Boolean setConfigObj(Integer merId, Integer adminId, Object obj) {
        //獲取對象屬性名稱
        List<String> fieldNames = Arrays.stream(obj.getClass().getDeclaredFields())
                .filter(e->!e.getName().equals(serialVersionUID))
                .map(Field::getName).collect(Collectors.toList());
        //將對象屬性值轉(zhuǎn)換成Map
        List<SystemConfig> configList = new ArrayList<>();
        for (String fieldName : fieldNames) {
            String firstLetter = fieldName.substring(0, 1).toUpperCase();
            String getter = "get" + firstLetter + fieldName.substring(1);
            Method method = obj.getClass().getMethod(getter, new Class[] {});
            Object value = method.invoke(obj, new Object[] {});
            SystemConfig systemConfig = getByName(merId, adminId, fieldName);
            systemConfig.setValue(value.toString());
            configList.add(systemConfig);
        }
        //批量保存和更新
        return saveOrUpdateBatch(configList);
    }
    
    /**
     * 獲取配置對象
     * @param merId 商戶id
     * @param adminId 管理員id
     * @param name 配置名稱
     */
    private SystemConfig getByName(Integer merId, Integer adminId, String name){
        LambdaQueryWrapper<SystemConfig> lqw = Wrappers.lambdaQuery();
        lqw.eq(SystemConfig::getName, name);
        lqw.eq(SystemConfig::getMerId, merId);
        lqw.eq(SystemConfig::getAdminId, adminId);
        SystemConfig systemConfig = dao.selectOne(lqw);
        return Optional.ofNullable(systemConfig).orElse(new SystemConfig().setName(name).setMerId(merId).setAdminId(adminId));
    }

調(diào)用方法(SystemConfig表需新增adminId字段來區(qū)分不同商戶下管理員配置)

//直接從數(shù)據(jù)庫拉取字段映射到對象
ConfigInfoVo configInfoVo = systemConfigService.getConfigObj(admin.getMerId(), ConfigInfoVo.class);
ConfigInfoVo configInfoVo = systemConfigService.getConfigObj(admin.getMerId(), admin.getId(), ConfigInfoVo.class);
//直接將對象屬性保存到數(shù)據(jù)庫
systemConfigService.setConfigObj(admin.getMerId(), request);
systemConfigService.setConfigObj(admin.getMerId(), admin.getId(), request);