From 6241b8acad2651564c1c668a9a54821361fbb4af Mon Sep 17 00:00:00 2001
From: zhou zhou <3272660260@qq.com>
Date: 星期一, 30 三月 2026 08:34:21 +0800
Subject: [PATCH] chore: sync rsf-server from isolated worktree

---
 rsf-server/src/main/java/com/vincent/rsf/server/common/utils/ExcelUtil.java |  106 +++++++++++++++++++++++++++++++++++++++++++++++++---
 1 files changed, 99 insertions(+), 7 deletions(-)

diff --git a/rsf-server/src/main/java/com/vincent/rsf/server/common/utils/ExcelUtil.java b/rsf-server/src/main/java/com/vincent/rsf/server/common/utils/ExcelUtil.java
index 4b3649a..10e5db7 100644
--- a/rsf-server/src/main/java/com/vincent/rsf/server/common/utils/ExcelUtil.java
+++ b/rsf-server/src/main/java/com/vincent/rsf/server/common/utils/ExcelUtil.java
@@ -33,6 +33,8 @@
 @Slf4j
 public class ExcelUtil {
     private static final Pattern EXTEND_FIELD_SOURCE_PATTERN = Pattern.compile("^extendFields\\.\\[(.+)]$");
+    private static final String SEQUENCE_SOURCE = "sequence";
+    private static final String SEQUENCE_LABEL = "搴忓彿";
 
     public static void build(Workbook workbook, HttpServletResponse response) {
         response.reset();
@@ -136,13 +138,19 @@
     public static Workbook create(List<Map<String, Object>> rows, List<ExportColumn> columns, ExportMeta exportMeta) {
         XSSFWorkbook workbook = new XSSFWorkbook();
         Sheet sheet = workbook.createSheet("export");
-        int titleColumnCount = Math.max(columns.size(), 4);
+        List<ExportColumn> effectiveColumns = buildEffectiveColumns(columns, exportMeta);
+        boolean generatedSequenceColumn = hasGeneratedSequenceColumn(columns, effectiveColumns);
+        int titleColumnCount = Math.max(effectiveColumns.size(), 4);
         int currentRowIndex = 0;
 
         CellStyle titleStyle = createTitleStyle(workbook);
         CellStyle subHeaderStyle = createSubHeaderStyle(workbook);
         CellStyle headerStyle = createHeaderStyle(workbook);
         CellStyle bodyStyle = createBodyStyle(workbook);
+
+        if (exportMeta != null && exportMeta.isLandscape()) {
+            sheet.getPrintSetup().setLandscape(true);
+        }
 
         if (exportMeta != null && StringUtils.isNotBlank(exportMeta.getReportTitle())) {
             Row titleRow = sheet.createRow(currentRowIndex++);
@@ -162,26 +170,62 @@
         }
 
         Row header = sheet.createRow(currentRowIndex++);
-        for (int index = 0; index < columns.size(); index++) {
+        for (int index = 0; index < effectiveColumns.size(); index++) {
             Cell headerCell = header.createCell(index);
-            headerCell.setCellValue(columns.get(index).getLabel());
+            headerCell.setCellValue(effectiveColumns.get(index).getLabel());
             headerCell.setCellStyle(headerStyle);
         }
 
         int rowIndex = currentRowIndex;
-        for (Map<String, Object> rowData : rows) {
+        for (int dataIndex = 0; dataIndex < rows.size(); dataIndex++) {
+            Map<String, Object> rowData = rows.get(dataIndex);
             Row row = sheet.createRow(rowIndex++);
-            for (int columnIndex = 0; columnIndex < columns.size(); columnIndex++) {
-                Object value = getRowValue(rowData, columns.get(columnIndex).getSource());
+            for (int columnIndex = 0; columnIndex < effectiveColumns.size(); columnIndex++) {
+                Object value = getExportCellValue(rowData, effectiveColumns.get(columnIndex).getSource(), generatedSequenceColumn, dataIndex);
                 writeCellValue(row, columnIndex, value, bodyStyle);
             }
         }
 
-        for (int columnIndex = 0; columnIndex < columns.size(); columnIndex++) {
+        for (int columnIndex = 0; columnIndex < effectiveColumns.size(); columnIndex++) {
             sheet.autoSizeColumn(columnIndex);
         }
 
         return workbook;
+    }
+
+    private static List<ExportColumn> buildEffectiveColumns(List<ExportColumn> columns, ExportMeta exportMeta) {
+        List<ExportColumn> effectiveColumns = new ArrayList<>(columns);
+        if (exportMeta != null && exportMeta.isShowSequence() && !containsSequenceColumn(columns)) {
+            effectiveColumns.add(0, new ExportColumn(SEQUENCE_SOURCE, SEQUENCE_LABEL));
+        }
+        return effectiveColumns;
+    }
+
+    private static boolean containsSequenceColumn(List<ExportColumn> columns) {
+        for (ExportColumn column : columns) {
+            if (SEQUENCE_SOURCE.equals(column.getSource())) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static boolean hasGeneratedSequenceColumn(List<ExportColumn> originalColumns, List<ExportColumn> effectiveColumns) {
+        return effectiveColumns.size() > originalColumns.size()
+                && !effectiveColumns.isEmpty()
+                && SEQUENCE_SOURCE.equals(effectiveColumns.get(0).getSource());
+    }
+
+    private static Object getExportCellValue(
+            Map<String, Object> rowData,
+            String source,
+            boolean generatedSequenceColumn,
+            int dataIndex
+    ) {
+        if (generatedSequenceColumn && SEQUENCE_SOURCE.equals(source)) {
+            return dataIndex + 1;
+        }
+        return getRowValue(rowData, source);
     }
 
     private static Object getRowValue(Map<String, Object> rowData, String source) {
@@ -301,13 +345,26 @@
         private final String printedAt;
         private final String operator;
         private final int count;
+        private final Map<String, Object> reportStyle;
 
         public ExportMeta(String reportTitle, String reportDate, String printedAt, String operator, int count) {
+            this(reportTitle, reportDate, printedAt, operator, count, Collections.emptyMap());
+        }
+
+        public ExportMeta(
+                String reportTitle,
+                String reportDate,
+                String printedAt,
+                String operator,
+                int count,
+                Map<String, ?> reportStyle
+        ) {
             this.reportTitle = reportTitle;
             this.reportDate = reportDate;
             this.printedAt = printedAt;
             this.operator = operator;
             this.count = count;
+            this.reportStyle = normalizeReportStyle(reportStyle);
         }
 
         public String getReportTitle() {
@@ -329,6 +386,41 @@
         public int getCount() {
             return count;
         }
+
+        public Map<String, Object> getReportStyle() {
+            return reportStyle;
+        }
+
+        public boolean isLandscape() {
+            return "landscape".equalsIgnoreCase(Objects.toString(getReportStyleValue("orientation"), ""));
+        }
+
+        public boolean isShowSequence() {
+            if (reportStyle.isEmpty() || !reportStyle.containsKey("showSequence")) {
+                return true;
+            }
+            Object value = getReportStyleValue("showSequence");
+            if (value instanceof Boolean boolValue) {
+                return boolValue;
+            }
+            return !"false".equalsIgnoreCase(Objects.toString(value, ""));
+        }
+
+        private Object getReportStyleValue(String key) {
+            return reportStyle.get(key);
+        }
+
+        private static Map<String, Object> normalizeReportStyle(Map<String, ?> reportStyle) {
+            if (reportStyle == null || reportStyle.isEmpty()) {
+                return Collections.emptyMap();
+            }
+
+            Map<String, Object> normalizedReportStyle = new HashMap<>();
+            for (Map.Entry<String, ?> entry : reportStyle.entrySet()) {
+                normalizedReportStyle.put(entry.getKey(), entry.getValue());
+            }
+            return Collections.unmodifiableMap(normalizedReportStyle);
+        }
     }
 
     /**

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