traffic-audit-server/src/main/java/com/trafficaudit/dataimport/service/DataImportService.java
@@ -85,6 +85,7 @@
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.TreeMap;
import java.util.stream.Collectors;
import java.text.SimpleDateFormat;
@@ -1054,11 +1055,22 @@
    // ========== 货运量周转量(模板_货运量周转量.xlsx,每月导入) ==========
    public int importFreightTurnover(MultipartFile file, String period) throws Exception {
        try (Workbook wb = WorkbookFactory.create(file.getInputStream())) {
            // 多年度工作簿(一年一个 Sheet:整年 1-12 月,如 21-26 年定稿文件)→ 全部年份入库
            List<String> yearSheets = detectYearSheets(wb);
            if (!yearSheets.isEmpty()) {
                return importFreightTurnoverByYear(wb, file, yearSheets);
            }
            return importFreightTurnoverByMonth(wb, file, period);
        }
    }
    /** 每月导入(模板_货运量周转量.xlsx):左半今年 1-N 月,右半去年 1-12 月 */
    private int importFreightTurnoverByMonth(Workbook wb, MultipartFile file, String period) throws Exception {
        List<FreightTurnoverImport> list = new ArrayList<>();
        int failRows = 0;
        // 报表期 N 月:左半为今年 1-N 月(列数不固定),右半固定为去年 1-12 月(算同比用)
        int monthCount = Integer.parseInt(period.split("-")[1]);
        try (Workbook wb = WorkbookFactory.create(file.getInputStream())) {
        {
            Sheet sheet = wb.getSheetAt(0);
            Row header = sheet.getRow(0);
            String h0 = header == null ? null : getString(header, 0);
@@ -1123,27 +1135,149 @@
                }
                list.add(entity);
            }
        } catch (Exception e) {
            throw e;
        }
        Map<String, List<FreightTurnoverImport>> byPeriod = new LinkedHashMap<>();
        byPeriod.put(period, list);
        return persistFreightTurnover(byPeriod, file.getOriginalFilename());
    }
        // 幂等:同报表期先删除
        freightTurnoverMapper.delete(new LambdaQueryWrapper<FreightTurnoverImport>()
            .eq(FreightTurnoverImport::getReportPeriod, period));
    /** 识别「多年度工作簿」:每个 Sheet 一年(Sheet 名 2021年/2022年…),且表头为「货运量/1月…12月」;否则返回空列表 */
    private List<String> detectYearSheets(Workbook wb) {
        List<String> names = new ArrayList<>();
        if (wb.getNumberOfSheets() < 2) return names;
        for (int i = 0; i < wb.getNumberOfSheets(); i++) {
            Sheet sheet = wb.getSheetAt(i);
            String nm = sheet.getSheetName() == null ? "" : sheet.getSheetName().trim();
            if (!nm.matches("\\d{4}\\s*年?")) { names.clear(); return names; }
            Row header = sheet.getRow(0);
            String h0 = header == null ? null : getString(header, 0);
            String h1 = header == null ? null : getString(header, 1);
            if (h0 == null || !h0.contains("货运量") || h1 == null || !h1.contains("月")) {
                names.clear();
                return names;
            }
            names.add(nm);
        }
        return names;
    }
        int success = 0;
        for (FreightTurnoverImport entity : list) {
            try {
                freightTurnoverMapper.insert(entity);
                success++;
            } catch (Exception e) {
                log.error("freight turnover insert error: {}", entity.getRegionName(), e);
                failRows++;
    /** 多年度工作簿导入:逐年一条报表期(报表期=该年最后有数据的月份),上年同期取上一年度 Sheet */
    private int importFreightTurnoverByYear(Workbook wb, MultipartFile file, List<String> yearSheets) {
        Map<Integer, String> sheetByYear = new TreeMap<>();
        for (String sheetName : yearSheets) {
            sheetByYear.put(Integer.parseInt(sheetName.replace("年", "").trim()), sheetName);
        }
        Map<Integer, Map<String, FreightTurnoverImport>> byYear = new TreeMap<>();
        Map<Integer, Integer> maxMonthByYear = new HashMap<>();
        for (Map.Entry<Integer, String> entry : sheetByYear.entrySet()) {
            Map<String, FreightTurnoverImport> parsed = new LinkedHashMap<>();
            int maxMonth = parseWholeYearSheet(wb.getSheet(entry.getValue()), parsed);
            if (parsed.isEmpty()) continue;
            byYear.put(entry.getKey(), parsed);
            maxMonthByYear.put(entry.getKey(), Math.max(1, Math.min(12, maxMonth)));
        }
        Map<String, List<FreightTurnoverImport>> byPeriod = new LinkedHashMap<>();
        for (Map.Entry<Integer, Map<String, FreightTurnoverImport>> entry : byYear.entrySet()) {
            int year = entry.getKey();
            String yearPeriod = year + "-" + String.format("%02d", maxMonthByYear.get(year));
            Map<String, FreightTurnoverImport> lastYear = byYear.get(year - 1);
            List<FreightTurnoverImport> rows = new ArrayList<>();
            for (Map.Entry<String, FreightTurnoverImport> regionEntry : entry.getValue().entrySet()) {
                FreightTurnoverImport entity = regionEntry.getValue();
                entity.setReportPeriod(yearPeriod);
                // 上年同期 = 上一年度 Sheet(多年度文件没有右半「去年1-12月」区块)
                FreightTurnoverImport last = lastYear == null ? null : lastYear.get(regionEntry.getKey());
                if (last != null) {
                    for (int m = 1; m <= 12; m++) {
                        setLastFreight(entity, m, getFreight(last, m));
                        setLastTurnover(entity, m, getTurnover(last, m));
                    }
                }
                rows.add(entity);
            }
            byPeriod.put(yearPeriod, rows);
        }
        return persistFreightTurnover(byPeriod, file.getOriginalFilename());
    }
    /** 解析整年 Sheet(1-12 月列):货运量块 + 周转量块;返回最后一个有货运量数据的月份 */
    private int parseWholeYearSheet(Sheet sheet, Map<String, FreightTurnoverImport> out) {
        Map<String, FreightTurnoverImport> freightMap = new LinkedHashMap<>();
        Map<String, FreightTurnoverImport> turnoverMap = new LinkedHashMap<>();
        Set<String> seen = new HashSet<>();
        int maxMonth = 0;
        for (int r = 1; r <= sheet.getLastRowNum(); r++) {
            Row row = sheet.getRow(r);
            if (row == null) continue;
            String name = getString(row, 0);
            if (name == null || name.trim().isEmpty()) continue;
            String region = RegionUtil.normalizeCityName(name);
            boolean isCity = RegionUtil.cityList().contains(region);
            if (!isCity && !"湖北省".equals(region)) continue; // 表头/说明行
            if (seen.contains(region)) {
                // 该名称已出现过 -> 周转量区块
                FreightTurnoverImport entity = turnoverMap.get(region);
                if (entity == null) {
                    entity = new FreightTurnoverImport();
                    entity.setRegionName(name.trim());
                    turnoverMap.put(region, entity);
                }
                for (int m = 1; m <= 12; m++) {
                    setTurnover(entity, m, getDecimalOrNull(row, m));
                }
            } else {
                seen.add(region);
                FreightTurnoverImport entity = freightMap.get(region);
                if (entity == null) {
                    entity = new FreightTurnoverImport();
                    entity.setRegionName(name.trim());
                    freightMap.put(region, entity);
                }
                for (int m = 1; m <= 12; m++) {
                    Double v = getDecimalOrNull(row, m);
                    setFreight(entity, m, v);
                    if (v != null && m > maxMonth) maxMonth = m;
                }
            }
        }
        recordBatch(file.getOriginalFilename(), "FREIGHT_TURNOVER", period, list.size(), success, failRows, null);
        log.info("Freight turnover imported: {} rows for {}", success, period);
        return success;
        // 合并:一个市州一行(货运量 + 周转量)
        for (Map.Entry<String, FreightTurnoverImport> entry : freightMap.entrySet()) {
            FreightTurnoverImport entity = entry.getValue();
            FreightTurnoverImport turnover = turnoverMap.get(entry.getKey());
            if (turnover != null) {
                for (int m = 1; m <= 12; m++) {
                    setTurnover(entity, m, getTurnover(turnover, m));
                }
            }
            out.put(entry.getKey(), entity);
        }
        return maxMonth;
    }
    /** 落库:按报表期先删后插(幂等),每个报表期一条导入批次记录,返回成功条数 */
    private int persistFreightTurnover(Map<String, List<FreightTurnoverImport>> byPeriod, String fileName) {
        int total = 0;
        for (Map.Entry<String, List<FreightTurnoverImport>> entry : byPeriod.entrySet()) {
            String p = entry.getKey();
            List<FreightTurnoverImport> rows = entry.getValue();
            freightTurnoverMapper.delete(new LambdaQueryWrapper<FreightTurnoverImport>()
                .eq(FreightTurnoverImport::getReportPeriod, p));
            int failRows = 0;
            int success = 0;
            for (FreightTurnoverImport entity : rows) {
                try {
                    freightTurnoverMapper.insert(entity);
                    success++;
                } catch (Exception e) {
                    log.error("freight turnover insert error: {}", entity.getRegionName(), e);
                    failRows++;
                }
            }
            recordBatch(fileName, "FREIGHT_TURNOVER", p, rows.size(), success, failRows, null);
            log.info("Freight turnover imported: {} rows for {}", success, p);
            total += success;
        }
        return total;
    }
    /** 解析货运量区块行:左半 B 起 N 列为今年 1-N 月,右半为去年 1-12 月 */