修改实现逻辑

liurunyu

2025-08-06 973e04d0ab5dda92a0014bdaf1150b86abde398e

 pipIrr-platform/pipIrr-global/src/main/java/com/dy/pipIrrGlobal/excel/CellWriteHandler.java

New file
@@ -0,0 +1,141 @@
package com.dy.pipIrrGlobal.excel;

import com.alibaba.excel.metadata.Head;
import com.alibaba.excel.metadata.data.WriteCellData;
import com.alibaba.excel.write.handler.context.CellWriteHandlerContext;
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
import com.alibaba.excel.write.metadata.holder.WriteTableHolder;
import com.alibaba.excel.write.metadata.style.WriteCellStyle;
import com.alibaba.excel.write.metadata.style.WriteFont;
import com.alibaba.excel.write.style.AbstractVerticalCellStyleStrategy;
import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.DefaultIndexedColorMap;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFColor;
import org.springframework.util.PropertyPlaceholderHelper;

import java.util.List;
import java.util.Objects;
import java.util.Properties;

/**
 * @author ZhuBaoMin
 * @date 2024-10-12 11:40
 * @LastEditTime 2024-10-12 11:40
 * @Description 总账表格设置
 */
public class CellWriteHandler extends AbstractVerticalCellStyleStrategy {
    private String title;

    PropertyPlaceholderHelper propertyPlaceholderHelper = new PropertyPlaceholderHelper("${", "}");

    public CellWriteHandler(String title) {
        this.title = title;
    }

    // 动态导入标题
    @Override
    public void beforeCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder,
                                 Row row, Head head, Integer integer, Integer integer1, Boolean aBoolean) {
        if (head != null) {
            List<String> headNameList = head.getHeadNameList();
            if (CollectionUtils.isNotEmpty(headNameList)) {
                Properties properties = new Properties();
                properties.setProperty("title", title);
                headNameList.replaceAll(value -> propertyPlaceholderHelper.replacePlaceholders(value, properties));
            }
        }
    }

    // 设置标题样式，包含字体、背景
    @Override
    protected void setHeadCellStyle(CellWriteHandlerContext context) {
        // 获取和创建CellStyle
        WriteCellData<?> cellData = context.getFirstCellData();
        CellStyle originCellStyle = cellData.getOriginCellStyle();
        Cell cell = context.getCell();

        if (Objects.isNull(originCellStyle)) {
            originCellStyle = context.getWriteWorkbookHolder().getWorkbook().createCellStyle();
        }

        ((XSSFCellStyle) originCellStyle).setFillForegroundColor(new XSSFColor(new java.awt.Color(255, 255, 255), new DefaultIndexedColorMap()));

        // 设置指定列背景色
        //if(cell.getColumnIndex() == 10
        //) {
        //    ((XSSFCellStyle) originCellStyle).setFillForegroundColor(new XSSFColor(new java.awt.Color(237, 237, 237), new DefaultIndexedColorMap()));
        //}

        // 设置背景颜色
        originCellStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        // 由于在FillStyleCellWriteHandler，会把OriginCellStyle和WriteCellStyle合并，会以WriteCellStyle样式为主，所有必须把WriteCellStyle设置的背景色清空
        // 具体合并规则看WriteWorkbookHolder.createCellStyle方法
        WriteCellStyle writeCellStyle = cellData.getWriteCellStyle();
        writeCellStyle.setFillForegroundColor(null);
        // 必须设置OriginCellStyle
        cellData.setOriginCellStyle(originCellStyle);

        WriteFont headWriteFont = new WriteFont();
        if (cell.getRowIndex() == 0) {
            headWriteFont.setFontHeightInPoints((short)14);
            headWriteFont.setFontName("Arial");
            headWriteFont.setBold(true);
        }else if (cell.getRowIndex() == 1) {
            headWriteFont.setFontHeightInPoints((short)12);
            headWriteFont.setFontName("Arial");
            headWriteFont.setBold(false);
        }

        cellData.getWriteCellStyle().setWriteFont(headWriteFont);
    }

    // 设置内容公示、内容字体样式、背景样式
    @Override
    protected void setContentCellStyle(CellWriteHandlerContext context) {

        // 获取和创建CellStyle
        WriteCellData<?> cellData = context.getFirstCellData();
        CellStyle originCellStyle = cellData.getOriginCellStyle();
        Cell cell = context.getCell();

        if (Objects.isNull(originCellStyle)) {
            originCellStyle = context.getWriteWorkbookHolder().getWorkbook().createCellStyle();
        }
        // 设置背景颜色
        ((XSSFCellStyle) originCellStyle).setFillForegroundColor(new XSSFColor(new java.awt.Color(255, 192, 0), new DefaultIndexedColorMap()));
        //System.out.println("Go to row: " +  context.getCell().getRowIndex() + ", column: " +  context.getCell().getColumnIndex());

        if (cell.getRowIndex() >= 2){
            ((XSSFCellStyle) originCellStyle).setFillForegroundColor(new XSSFColor(new java.awt.Color(237, 237, 237), new DefaultIndexedColorMap()));

            //if (cell.getColumnIndex() == 10){
            //    int actualCellRowNum =  context.getCell().getRowIndex() + 1;
            //    context.getCell().setCellFormula("I" + actualCellRowNum +"+J" + actualCellRowNum);
            //}
        }

        originCellStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        originCellStyle.setBorderLeft(BorderStyle.THIN);                    //左边框线
        originCellStyle.setBorderTop(BorderStyle.THIN);                     //顶部框线
        originCellStyle.setBorderRight(BorderStyle.THIN);                   //右边框线
        originCellStyle.setBorderBottom(BorderStyle.THIN);                  //底部框线
        // 由于在FillStyleCellWriteHandler，会把OriginCellStyle和WriteCellStyle合并，会以WriteCellStyle样式为主，所有必须把WriteCellStyle设置的背景色清空
        // 具体合并规则看WriteWorkbookHolder.createCellStyle方法
        WriteCellStyle writeCellStyle = cellData.getWriteCellStyle();
        writeCellStyle.setFillForegroundColor(null);
        writeCellStyle.setHorizontalAlignment(HorizontalAlignment.CENTER);
        writeCellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
        // 必须设置OriginCellStyle
        cellData.setOriginCellStyle(originCellStyle);

        WriteFont headWriteFont = new WriteFont();
        headWriteFont.setFontHeightInPoints((short)12);
        headWriteFont.setFontName("宋体");
        headWriteFont.setBold(false);
        headWriteFont.setColor(IndexedColors.BLACK.getIndex());

        cellData.getWriteCellStyle().setWriteFont(headWriteFont);
    }
}