一键导出的箱单发票pdf上的章不需要

src/main/java/com/xujie/sys/modules/ecss/service/impl/CoDelExcelTXServiceImpl.java

@@ -24,10 +24,14 @@ import jakarta.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang.StringUtils;
 import org.apache.ibatis.session.SqlSession;
+import org.apache.poi.ooxml.POIXMLDocumentPart;
 import org.apache.poi.ss.usermodel.*;
 import org.apache.poi.ss.util.CellRangeAddress;
 import org.apache.poi.xssf.usermodel.*;
 import org.apache.shiro.SecurityUtils;
+import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTDrawing;
+import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTOneCellAnchor;
+import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTTwoCellAnchor;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.stereotype.Service;
@@ -49,6 +53,11 @@ import java.util.stream.Collectors;
 @Slf4j
 public class CoDelExcelTXServiceImpl implements CoDelExcelTXService {
 
+    /**
+     * 公章通常位于模板较下方区域，这里按锚点起始行做筛选删除。
+     */
+    private static final int SEAL_ANCHOR_MIN_ROW = 10;
+
     @Autowired
     private CoDelMapper coDelMapper;
     @Autowired
@@ -1946,6 +1955,7 @@ public class CoDelExcelTXServiceImpl implements CoDelExcelTXService {
 
             if (onlyInvoicePackingPdf) {
                 retainFirstSheets(excelWorkbook, 2);
+                removeInvoicePackingSealPictures(excelWorkbook);
             }
             compactLoadingNoRowIfNeeded(excelWorkbook);
             // 将Excel转换为PDF
@@ -1984,6 +1994,62 @@ public class CoDelExcelTXServiceImpl implements CoDelExcelTXService {
         }
     }
 
+    /**
+     * 仅导出发票/箱单PDF时，移除前两页下方区域的图片公章。
+     */
+    private void removeInvoicePackingSealPictures(XSSFWorkbook workbook) {
+        if (workbook == null) {
+            return;
+        }
+        int targetSheetCount = Math.min(2, workbook.getNumberOfSheets());
+        for (int i = 0; i < targetSheetCount; i++) {
+            XSSFSheet sheet = workbook.getSheetAt(i);
+            if (sheet == null) {
+                continue;
+            }
+            removeSealPicturesFromSheet(sheet);
+        }
+    }
+
+    /**
+     * 删除sheet中锚点起始行大于阈值的图片（主要用于移除公章）。
+     */
+    private void removeSealPicturesFromSheet(XSSFSheet sheet) {
+        for (POIXMLDocumentPart relation : sheet.getRelations()) {
+            if (!(relation instanceof XSSFDrawing)) {
+                continue;
+            }
+            XSSFDrawing drawing = (XSSFDrawing) relation;
+            CTDrawing ctDrawing = drawing.getCTDrawing();
+            removeSealPicturesFromTwoCellAnchors(ctDrawing);
+            removeSealPicturesFromOneCellAnchors(ctDrawing);
+        }
+    }
+
+    private void removeSealPicturesFromTwoCellAnchors(CTDrawing ctDrawing) {
+        for (int i = ctDrawing.sizeOfTwoCellAnchorArray() - 1; i >= 0; i--) {
+            CTTwoCellAnchor anchor = ctDrawing.getTwoCellAnchorArray(i);
+            if (anchor != null
+                    && anchor.isSetPic()
+                    && anchor.getFrom() != null
+                    && anchor.getFrom().getRow() > SEAL_ANCHOR_MIN_ROW) {
+                ctDrawing.removeTwoCellAnchor(i);
+            }
+        }
+    }
+
+    private void removeSealPicturesFromOneCellAnchors(CTDrawing ctDrawing) {
+        for (int i = ctDrawing.sizeOfOneCellAnchorArray() - 1; i >= 0; i--) {
+            CTOneCellAnchor anchor = ctDrawing.getOneCellAnchorArray(i);
+            if (anchor != null
+                    && anchor.isSetPic()
+                    && anchor.getFrom() != null
+                    && anchor.getFrom().getRow() > SEAL_ANCHOR_MIN_ROW) {
+                ctDrawing.removeOneCellAnchor(i);
+            }
+        }
+    }
+
     /**
      * 将Excel工作簿转换为PDF字节数组
      */