EasyExcel 批量设置单元格样式（字体样式、底纹样式、边框样式、对齐方式、自动换行、旋转文字、竖向文字、数据格式、自动收缩）

1 Maven配置

2 CellStyleModel

3 CustomCellStyleHandler

4 调试代码

5 调试结果

注：

1 Maven配置

        <!--hutool工具包--><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.5.1</version></dependency><!-- EasyExcel文档处理工具 --><dependency><groupId>com.alibaba</groupId><artifactId>easyexcel</artifactId><version>2.2.8</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency>

2 CellStyleModel

样式信息类。

package com.xudongbase.easyexcel.model;import com.xudongbase.easyexcel.model.builder.CellStyleModelBuilder;
import com.xudongbase.easyexcel.model.common.SheetCellModel;
import lombok.Getter;/*** 样式信息类(Builder构建者模式)** @author xudongmaster*/
@Getter
public class CellStyleModel extends SheetCellModel {/*** 样式信息*/private final StyleModel styleModel;public CellStyleModel(CellStyleModelBuilder builder) {this.sheetName = builder.getSheetName();this.colIndex = builder.getColIndex();this.rowIndex = builder.getRowIndex();this.styleModel = builder.getStyleModel();}/*** 生成样式信息** @param sheetName   sheet页名称* @param rowIndex    行号* @param columnIndex 列号* @param styleModel  样式信息* @return*/ public static CellStyleModel createCellStyleModel(String sheetName, int rowIndex, int columnIndex, StyleModel styleModel) {return CellStyleModelBuilder.builder(sheetName, rowIndex, columnIndex, styleModel).build();}}

3 CustomCellStyleHandler

自定义单元格样式处理器，可支持字体样式、底纹样式、边框样式、对齐方式、自动换行、旋转文字、竖向文字、数据格式、自动收缩。

package com.xudongbase.easyexcel.handler;import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.ReflectUtil;
import cn.hutool.core.util.StrUtil;
import com.alibaba.excel.write.handler.AbstractRowWriteHandler;
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
import com.alibaba.excel.write.metadata.holder.WriteTableHolder;
import com.xudongbase.easyexcel.annotation.ReflectField;
import com.xudongbase.easyexcel.constant.StyleModelConstant;
import com.xudongbase.easyexcel.enums.BorderSideEnum;
import com.xudongbase.easyexcel.model.CellStyleModel;
import com.xudongbase.easyexcel.model.StyleModel;
import com.xudongbase.easyexcel.model.common.*;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.reflect.FieldUtils;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFColor;
import org.apache.poi.xssf.usermodel.XSSFFont;
import org.apache.poi.xssf.usermodel.extensions.XSSFCellBorder;import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;/*** 自定义单元格样式处理器* 支持字体样式、底纹信息、边框样式、对齐方式、自动换行、旋转文字、竖向文字、数据格式、自动收缩** @author xudongmaster*/
@Slf4j
public class CustomCellStyleHandler extends AbstractRowWriteHandler {/*** sheet页名称列表*/private List<String> sheetNameList;/*** 样式信息*/private Map<String, Map<Integer, List<CellStyleModel>>> sheetCellStyleMap = new HashMap<>();/*** styleModel和CellStyle映射map*/private final Map<StyleModel, CellStyle> styleCellStyleMap = new HashMap<>();/*** 自定义样式适配器构造方法** @param cellStyleList 样式信息*/public CustomCellStyleHandler(List<CellStyleModel> cellStyleList) {if (CollUtil.isEmpty(cellStyleList)) {return;}Map<String, List<CellStyleModel>> allCellStyleModelMap = cellStyleList.stream().filter(x ->StrUtil.isNotBlank(x.getSheetName()) && x.getStyleModel() != null).collect(Collectors.groupingBy(SheetModel::getSheetName));if (allCellStyleModelMap == null || CollUtil.isEmpty(allCellStyleModelMap.keySet())) {return;}sheetNameList = new ArrayList<>(allCellStyleModelMap.keySet());//为了方便筛选数据Map<Integer, List<CellStyleModel>> sheetCellStyleModelMap;for (String sheetName : sheetNameList) {sheetCellStyleModelMap = allCellStyleModelMap.get(sheetName).stream().collect(Collectors.groupingBy(SheetCellModel::getRowIndex));sheetCellStyleMap.put(sheetName, sheetCellStyleModelMap);}}@Overridepublic void afterRowDispose(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Row row, Integer relativeRowIndex, Boolean isHead) {//跳过表头if (isHead) {return;}Sheet sheet = writeSheetHolder.getSheet();//不需要添加样式，或者当前sheet页不需要添加样式if (sheetCellStyleMap == null || CollUtil.isEmpty(sheetCellStyleMap.keySet()) || !sheetNameList.contains(sheet.getSheetName())) {return;}Map<Integer, List<CellStyleModel>> rowCSMMap = sheetCellStyleMap.get(sheet.getSheetName());//获取当前行的样式信息List<CellStyleModel> rowCellStyleList = rowCSMMap.get(relativeRowIndex);//该行不需要设置样式if (CollUtil.isEmpty(rowCellStyleList)) {return;}Cell cell;for (CellStyleModel cellStyleModel : rowCellStyleList) {//列索引int colIndex = cellStyleModel.getColIndex();//边框样式cell = row.getCell(colIndex) == null ? row.createCell(colIndex) : row.getCell(colIndex);//样式不追加，并且CellStyle也存在if (!cellStyleModel.getStyleModel().isAppend()&& styleCellStyleMap.get(cellStyleModel.getStyleModel()) != null) {//样式优化，styleModel对象相同时，CellStyle对象也相同cell.setCellStyle(styleCellStyleMap.get(cellStyleModel.getStyleModel()));} else {//设置单元格样式setCellStyle(cellStyleModel, cell);}}//删除已添加的样式信息rowCSMMap.remove(relativeRowIndex);}/*** 给单元格设置样式** @param cellStyleModel 样式信息* @param cell           单元格对象*/private void setCellStyle(CellStyleModel cellStyleModel, Cell cell) {//优先从CellStyleMap取，没有再创建StyleModel styleModel = cellStyleModel.getStyleModel();XSSFCellStyle style = styleCellStyleMap.get(styleModel) == null? (XSSFCellStyle) cell.getRow().getSheet().getWorkbook().createCellStyle() : (XSSFCellStyle) styleCellStyleMap.get(styleModel);// 克隆出一个 stylestyle.cloneStyleFrom(cell.getCellStyle());//可追加的CellStyle对象不放入CellStyleMap中if (!styleModel.isAppend()) {styleCellStyleMap.put(styleModel, style);}List<Field> fieldList = FieldUtils.getFieldsListWithAnnotation(StyleModel.class, ReflectField.class);if (CollUtil.isNotEmpty(fieldList)) {//使用反射给CellStyle赋值for (Field field : fieldList) {field.setAccessible(true);String fieldName = field.getName();ReflectField reflectField = field.getAnnotation(ReflectField.class);String invokeMethodName = reflectField.invokeMethodName();Object fieldValue;try {fieldValue = field.get(styleModel);} catch (IllegalAccessException e) {log.error("获取StyleModel的{}属性值失败：", fieldName, e);continue;}//当前字段没有赋值if (fieldValue == null) {continue;}//数据格式(从String转化为DataFormat)if (StrUtil.equals(StyleModelConstant.ATTR_NAME_DATA_FORMAT, fieldName)) {DataFormat dataFormat = cell.getRow().getSheet().getWorkbook().createDataFormat();fieldValue = dataFormat.getFormat((String) fieldValue);}ReflectUtil.invoke(style, invokeMethodName, fieldValue);}}//设置底纹if (styleModel.getCellShadingModel() != null) {setCellShading(style, styleModel.getCellShadingModel());}//设置字体样式FontModel fontModel = styleModel.getFontModel();if (fontModel != null) {setFontStyle(cell, style, fontModel);}//设置边框样式Map<BorderSideEnum, BorderModel> borderModelMap = styleModel.getBorderModelMap();if (borderModelMap != null && borderModelMap.size() > 0) {setBorderStyle(style, borderModelMap);}cell.setCellStyle(style);}/*** 设置底纹信息** @param style            单元格样式* @param cellShadingModel 底纹信息*/private void setCellShading(XSSFCellStyle style, CellShadingModel cellShadingModel) {//背景颜色Object backgroundColor = cellShadingModel.getBackgroundColor();//前景色Object foregroundColor = cellShadingModel.getForegroundColor();//底纹样式FillPatternType fillPatternType = cellShadingModel.getFillPattern();fillPatternType = fillPatternType == null ? FillPatternType.SOLID_FOREGROUND : fillPatternType;//背景颜色和前景色不存在时，不设置底纹if (backgroundColor == null && foregroundColor == null) {style.setFillPattern(fillPatternType);return;}//设置背景颜色(背景色和前景色都存在的情况)if (backgroundColor != null && foregroundColor != null) {//使用IndexedColors定义的颜色if (backgroundColor instanceof IndexedColors) {style.setFillBackgroundColor(((IndexedColors) backgroundColor).getIndex());}//使用自定义的RGB颜色else if (backgroundColor instanceof XSSFColor) {style.setFillBackgroundColor((XSSFColor) backgroundColor);}}//前景色不存在，设置背景色(前景色存在设置前景色)foregroundColor = foregroundColor == null ? backgroundColor : foregroundColor;//使用IndexedColors定义的颜色if (foregroundColor instanceof IndexedColors) {style.setFillForegroundColor(((IndexedColors) foregroundColor).getIndex());}//使用自定义的RGB颜色else if (foregroundColor instanceof XSSFColor) {style.setFillForegroundColor((XSSFColor) foregroundColor);}//设置底纹样式style.setFillPattern(fillPatternType);}/*** 设置字体样式** @param cell      单元格对象* @param style     单元格样式* @param fontModel 字体信息*/private void setFontStyle(Cell cell, XSSFCellStyle style, FontModel fontModel) {XSSFFont font;//样式存在字体对象时，使用原有的字体对象if (style.getFontIndex() != 0) {font = style.getFont();}//样式不存在字体对象时，创建字体对象else {font = (XSSFFont) cell.getRow().getSheet().getWorkbook().createFont();//默认字体为宋体font.setFontName("宋体");}List<Field> fieldList = FieldUtils.getFieldsListWithAnnotation(FontModel.class, ReflectField.class);if (CollUtil.isNotEmpty(fieldList)) {//使用反射给CellStyle赋值for (Field field : fieldList) {field.setAccessible(true);String fieldName = field.getName();ReflectField reflectField = field.getAnnotation(ReflectField.class);String invokeMethodName = reflectField.invokeMethodName();Object fieldValue;try {fieldValue = field.get(fontModel);} catch (IllegalAccessException e) {log.error("获取FontModel的{}属性值失败：", fieldName, e);continue;}//当前字段没有赋值if (fieldValue == null) {continue;}//字段值为IndexedColors时，字段值取索引值if (fieldValue instanceof IndexedColors) {fieldValue = ((IndexedColors) fieldValue).getIndex();}ReflectUtil.invoke(font, invokeMethodName, fieldValue);}}style.setFont(font);}/*** 设置边框样式** @param style          单元格样式* @param borderModelMap 边框信息map*/private void setBorderStyle(XSSFCellStyle style, Map<BorderSideEnum, BorderModel> borderModelMap) {//设置边框线条类型和边框线条颜色for (Map.Entry<BorderSideEnum, BorderModel> borderModelEntry : borderModelMap.entrySet()) {BorderModel borderModel = borderModelEntry.getValue();BorderSideEnum borderSideEnum = borderModelEntry.getKey();//设置边框线条类型BorderStyle borderStyle = borderModel.getBorderStyle();if (borderStyle != null) {ReflectUtil.invoke(style, borderSideEnum.getBorderStyleMethodName(), borderStyle);}//设置边框线条颜色Object borderColor = borderModel.getBorderColor();if (borderColor != null) {//使用IndexedColors定义的颜色，使用索引值if (borderColor instanceof IndexedColors) {borderColor = ((IndexedColors) borderColor).getIndex();}ReflectUtil.invoke(style, borderSideEnum.getBorderColorMethodName(), borderColor);}}}
}

4 调试代码

   /*** 测试设置自定义单元格样式（支持字体样式、底纹信息、边框样式、对齐方式、自动换行、旋转文字、竖向文字、数据格式、自动收缩）*/@Testpublic void testCellStyle() {try {File file = new File("D:/easyexcel/testCellStyle.xlsx");FileUtil.createNewFile(file);//生成表格数据List<List<Object>> dataList = new ArrayList<>();dataList.add(new ArrayList<>(Arrays.asList(new Object[]{"表头11", "表头2", "表头3", "表头4"})));dataList.add(new ArrayList<>(Arrays.asList(new Object[]{"表头17777777777", "表头2", "表头3", "表头4444"})));dataList.add(new ArrayList<>(Arrays.asList(new Object[]{"表头31", "表头2", "表头3", "表头4"})));dataList.add(new ArrayList<>(Arrays.asList(new Object[]{11.111, 11.111, "11.111", "表头4444444444444444"})));//导出文件List<CellStyleModel> cellStyleList = new ArrayList<>();//设置单元格字体（黑体）,单元格大小 18号,字体颜色红色,加粗,斜体，下划线,上标,删除线cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 2, 0, StyleModel.createFontStyleModel(FontModel.createFontModel("黑体", 18D, IndexedColors.RED, true, true, Font.U_SINGLE, Font.SS_SUPER, true))));//设置单元格背景颜色cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 0, 1, StyleModel.createCellShadingStyleModel(CellShadingModel.createCellShadingModel(null, IndexedColors.BLUE, null))));//设置单元格底纹cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 0, 3, StyleModel.createCellShadingStyleModel(CellShadingModel.createCellShadingModel(FillPatternType.THICK_HORZ_BANDS, IndexedColors.RED, IndexedColors.BLUE))));//设置单元格边框类型和边框颜色cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 0, 2, StyleModel.createBorderStyleModel(BorderModel.createBorderModel(BorderStyle.DOUBLE, IndexedColors.RED))));//设置对齐方式cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 0, 3, StyleModel.createAlignmentStyleModel(HorizontalAlignment.RIGHT, VerticalAlignment.BOTTOM)));//设置自动换行cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 1, 0, StyleModel.createWrapTextStyleModel(true)));//设置旋转角度cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 0, 0, StyleModel.createRotationStyleModel((short) 90)));//设置旋转角度cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 1, 0, StyleModel.createRotationStyleModel((short) -90)));//设置竖向文字cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 2, 1, StyleModel.createVerticalTextStyleModel()));//设置数据格式cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 3, 0, StyleModel.createDataFormatStyleModel("00")));//设置数据格式cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 3, 1, StyleModel.createDataFormatStyleModel("00.00")));//设置数据格式cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 3, 2, StyleModel.createDataFormatStyleModel("00.00")));//设置自动收缩cellStyleList.add(CellStyleModel.createCellStyleModel("模板", 3, 3, StyleModel.createShrinkToFitStyleModel(true)));FileOutputStream fileOutputStream = new FileOutputStream(file);ExcelWriter excelWriter = EasyExcel.write(fileOutputStream).registerWriteHandler(new CustomCellStyleHandler(cellStyleList)).build();WriteSheet writeSheet = EasyExcel.writerSheet("模板").build();excelWriter.write(dataList, writeSheet);//千万别忘记finish 会帮忙关闭流excelWriter.finish();} catch (Exception e) {e.printStackTrace();}}

5 调试结果

注：

（1）有关字体样式更详细的设置请查看以下博客。

EasyExcel 设置字体样式（字体、字体大小、字体颜色、字体加粗、字体斜体、字体下划线、字体上标下标、字体删除线）https://blog.csdn.net/qq_38974638/article/details/117388442

（2）有关自定义RGB颜色的使用请查看以下博客。

EasyExcel 单元格背景颜色、字体颜色使用2种设置颜色方法（IndexedColors中定义的颜色，自定义RGB颜色）实现https://blog.csdn.net/qq_38974638/article/details/117395831

（3）有关边框样式更详细的设置请查看以下博客。

EasyExcel 设置边框样式（线条类型和线条颜色）https://blog.csdn.net/qq_38974638/article/details/117453000

（4）觉得这篇博客写的不错的可以前往Gitee/GitCode点个Star，源码请查看Gitee/GitCode的xudongbase项目easyexcel分支。

文件 · easyexcel · 旭东怪 / Xudongbase · GitCode主要是项目中可以用到的共通方法，现有easyexcel分支在持续更新中。欢迎大家Star和提交Issues。 easyexcel分支：批量设置样式，批量添加批注，批量合并单元格，设置冻结行和列，设置行高列宽，隐藏行和列，绑定下拉框数据，设置水印，插入图片https://gitcode.net/qq_38974638/xudongbase/-/tree/easyexcel

nullhttps://gitee.com/xudong_master/xudongbase/tree/easyexcel/

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