获取redis数据，接收前端数据存reids

yaowanxin

3 天以前 d5e714fecf9cba48c1a225e6eb53078cdad647c7

 cnas-device/src/main/java/com/ruoyi/device/utils/DataAcquisition.java

@@ -7,6 +7,8 @@
import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.toolkit.ObjectUtils;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.ruoyi.common.utils.RedisUtil;
import com.ruoyi.device.constant.DCResistanceMqttConstants;
import com.ruoyi.device.dto.DeviceCollectionDto;
import com.ruoyi.device.pojo.DataConfig;
import com.ruoyi.device.pojo.Device;
@@ -147,6 +149,9 @@
                case ".png":
                    map = readPngString(data, userMap, device);
                    break;
                case ".mqtt":
                    map = getActualResistanceValueAsMap(userMap, device);
                    break;
                default:
                    map = null;
                    break;
@@ -159,6 +164,71 @@
            return map;
        }
    }
    /**
     * 从 Redis 中获取实际电阻值，并以键值对形式返回
     * @param dataConfig 数据配置信息
     * @param device 设备信息
     * @return 包含实际电阻值处理结果的键值对；若未获取到有效数据则返回空 Map
     */
    public static Map<String, Object> getActualResistanceValueAsMap(Map<String, List<DataConfig>> dataConfig, Device device) {
        Map<String, Object> map = new HashMap<>();
        if (ObjectUtils.isEmpty(dataConfig)) {
            return map;
        }
        dataConfig.forEach((k, v) -> {
            AtomicInteger numberOfDataEntries = new AtomicInteger();
            List<Object> list = new ArrayList<>();
            for (int config = 0; config < v.size(); config++) {
                String refery = getRefer(v.get(config).getRefery());
                // 从 Redis 中获取值
                Object value = RedisUtil.get(refery);
                if (ObjectUtils.isNotEmpty(value)) {
                    if (value instanceof String && ((String) value).startsWith("[") && ((String) value).endsWith("]")) {
                        try {
                            // 解析 JSON 数组字符串为 List<BigDecimal>
                            List<BigDecimal> values = JSONArray.parseArray((String) value, BigDecimal.class);
                            list.addAll(values);
                            numberOfDataEntries.addAndGet(values.size());
                        } catch (Exception e) {
                            // 解析失败，记录错误日志，使用原字符串值
                            System.err.println("解析 Redis 返回的 JSON 数组失败: " + value);
                            list.add(value);
                            numberOfDataEntries.addAndGet(1);
                        }
                    } else {
                        numberOfDataEntries.addAndGet(1);
                        list.add(value);

                    }
                }
            }
            // 拼接数采配置
            List<Object> result = new ArrayList<>();
            for (int i = 0; i < numberOfDataEntries.get(); i++) {
                StringBuilder aggregate = new StringBuilder();
                for (int j = 0; j < v.size(); j++) {
                    int index;
                    if (j == 0) {
                        index = i;
                    } else {
                        index = numberOfDataEntries.get() + i;
                    }
                    if (index < list.size()) {
                        aggregate.append(list.get(index).toString()).append(",");
                    }
                }
                if (aggregate.length() > 0) {
                    aggregate.setLength(aggregate.length() - 1);
                }
                result.add(aggregate.toString());
            }
            // 进行公式计算
            Object resultValue = calculationFormula(result, v.get(0), k, device);
            map.put(k, resultValue);
        });
        return map;
    }


    public static Map<String, Object> createFrequency(String entrustCode, String sampleCode, Map<String, Object> map) {
        Set<String> set = new LinkedHashSet<>();
@@ -506,7 +576,7 @@
            listResult.addAll(list);
        }
        // 为了给前端做数据区分
        if (listResult.size() > 1) {
        if (listResult.size() >= 1) {
            hashMap.put("result", listResult);
        } else {
            hashMap.put("result", listResult.get(0).toString());