添加writeCellValue的重载，以支持isHeader

hutool-poi/src/main/java/org/dromara/hutool/poi/excel/ExcelUtil.java

@@ -13,13 +13,12 @@
 package org.dromara.hutool.poi.excel;
 
 import org.dromara.hutool.core.exception.DependencyException;
-import org.dromara.hutool.core.io.file.FileUtil;
 import org.dromara.hutool.core.io.IoUtil;
+import org.dromara.hutool.core.io.file.FileUtil;
 import org.dromara.hutool.core.util.ObjUtil;
-import org.dromara.hutool.core.regex.ReUtil;
-import org.dromara.hutool.core.text.StrUtil;
 import org.dromara.hutool.poi.PoiChecker;
 import org.dromara.hutool.poi.excel.cell.CellLocation;
+import org.dromara.hutool.poi.excel.cell.CellLocationUtil;
 import org.dromara.hutool.poi.excel.sax.ExcelSaxReader;
 import org.dromara.hutool.poi.excel.sax.ExcelSaxUtil;
 import org.dromara.hutool.poi.excel.sax.handler.RowHandler;
@@ -464,19 +463,7 @@ public class ExcelUtil {
 	 * @since 4.1.20
 	 */
 	public static String indexToColName(int index) {
-		if (index < 0) {
-			return null;
-		}
-		final StringBuilder colName = StrUtil.builder();
-		do {
-			if (colName.length() > 0) {
-				index--;
-			}
-			final int remainder = index % 26;
-			colName.append((char) (remainder + 'A'));
-			index = (index - remainder) / 26;
-		} while (index > 0);
-		return colName.reverse().toString();
+		return CellLocationUtil.indexToColName(index);
 	}
 
 	/**
@@ -487,17 +474,7 @@ public class ExcelUtil {
 	 * @since 4.1.20
 	 */
 	public static int colNameToIndex(final String colName) {
-		final int length = colName.length();
-		char c;
-		int index = -1;
-		for (int i = 0; i < length; i++) {
-			c = Character.toUpperCase(colName.charAt(i));
-			if (Character.isDigit(c)) {
-				break;// 确定指定的char值是否为数字
-			}
-			index = (index + 1) * 26 + (int) c - 'A';
-		}
-		return index;
+		return CellLocationUtil.colNameToIndex(colName);
 	}
 
 	/**
@@ -509,8 +486,6 @@ public class ExcelUtil {
 	 * @since 5.1.4
 	 */
 	public static CellLocation toLocation(final String locationRef) {
-		final int x = colNameToIndex(locationRef);
-		final int y = ReUtil.getFirstNumber(locationRef) - 1;
-		return new CellLocation(x, y);
+		return CellLocationUtil.toLocation(locationRef);
 	}
 }

hutool-poi/src/main/java/org/dromara/hutool/poi/excel/ExcelWriter.java

@@ -1042,7 +1042,7 @@ public class ExcelWriter extends ExcelBase<ExcelWriter> {
 			} else {
 				rowMap = (Map) rowBean;
 			}
-		}else if(rowBean instanceof Iterable){
+		} else if (rowBean instanceof Iterable) {
 			// issue#2398@Github
 			// MapWrapper由于实现了Iterable接口，应该优先按照Map处理
 			return writeRow((Iterable<?>) rowBean);
@@ -1097,7 +1097,7 @@ public class ExcelWriter extends ExcelBase<ExcelWriter> {
 			for (final Table.Cell<?, ?, ?> cell : aliasTable) {
 				// 首先查找原名对应的列号
 				location = this.headLocationCache.get(StrUtil.toString(cell.getRowKey()));
-				if(null == location){
+				if (null == location) {
 					// 未找到，则查找别名对应的列号
 					location = this.headLocationCache.get(StrUtil.toString(cell.getColumnKey()));
 				}
@@ -1149,8 +1149,21 @@ public class ExcelWriter extends ExcelBase<ExcelWriter> {
 	 * @since 4.0.2
 	 */
 	public ExcelWriter writeCellValue(final int x, final int y, final Object value) {
+		return writeCellValue(x, y, value, false);
+	}
+
+	/**
+	 * 给指定单元格赋值，使用默认单元格样式
+	 *
+	 * @param x        X坐标，从0计数，即列号
+	 * @param y        Y坐标，从0计数，即行号
+	 * @param isHeader 是否为Header
+	 * @param value    值
+	 * @return this
+	 */
+	public ExcelWriter writeCellValue(final int x, final int y, final Object value, final boolean isHeader) {
 		final Cell cell = getOrCreateCell(x, y);
-		CellUtil.setCellValue(cell, value, this.styleSet, false, this.cellEditor);
+		CellUtil.setCellValue(cell, value, this.styleSet, isHeader, this.cellEditor);
 		return this;
 	}
 
@@ -1375,9 +1388,9 @@ public class ExcelWriter extends ExcelBase<ExcelWriter> {
 	private Table<?, ?, ?> aliasTable(final Map<?, ?> rowMap) {
 		final Table<Object, Object, Object> filteredTable = new RowKeyTable<>(new LinkedHashMap<>(), TableMap::new);
 		if (MapUtil.isEmpty(this.headerAlias)) {
-			rowMap.forEach((key, value)-> filteredTable.put(key, key, value));
-		}else{
-			rowMap.forEach((key, value)->{
+			rowMap.forEach((key, value) -> filteredTable.put(key, key, value));
+		} else {
+			rowMap.forEach((key, value) -> {
 				final String aliasName = this.headerAlias.get(StrUtil.toString(key));
 				if (null != aliasName) {
 					// 别名键值对加入

hutool-poi/src/main/java/org/dromara/hutool/poi/excel/cell/CellLocation.java

@@ -38,18 +38,36 @@ public class CellLocation implements Serializable {
 		this.y = y;
 	}
 
+	/**
+	 * 获取x（列）号
+	 *
+	 * @return x（列）号
+	 */
 	public int getX() {
 		return x;
 	}
 
+	/**
+	 * 设置x（列）号
+	 *
+	 * @param x x（列）号
+	 */
 	public void setX(final int x) {
 		this.x = x;
 	}
 
+	/**
+	 * 获取y（行）号
+	 * @return y（行）号
+	 */
 	public int getY() {
 		return y;
 	}
 
+	/**
+	 * 设置y（行）号
+	 * @param y y（行）号
+	 */
 	public void setY(final int y) {
 		this.y = y;
 	}

hutool-poi/src/main/java/org/dromara/hutool/poi/excel/cell/CellLocationUtil.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2023 looly(loolly@aliyun.com)
+ * Hutool is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *          http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+package org.dromara.hutool.poi.excel.cell;
+
+import org.dromara.hutool.core.regex.ReUtil;
+import org.dromara.hutool.core.text.StrUtil;
+
+/**
+ * 单元格位置工具类，提供包括行号转行名称、列号转列名称等功能。
+ *
+ * @author looly
+ * @since 6.0.0
+ */
+public class CellLocationUtil {
+	/**
+	 * 将Sheet列号变为列名
+	 *
+	 * @param index 列号, 从0开始
+	 * @return 0-》A; 1-》B...26-》AA
+	 */
+	public static String indexToColName(int index) {
+		if (index < 0) {
+			return null;
+		}
+		final StringBuilder colName = StrUtil.builder();
+		do {
+			if (colName.length() > 0) {
+				index--;
+			}
+			final int remainder = index % 26;
+			colName.append((char) (remainder + 'A'));
+			index = (index - remainder) / 26;
+		} while (index > 0);
+		return colName.reverse().toString();
+	}
+
+	/**
+	 * 根据表元的列名转换为列号
+	 *
+	 * @param colName 列名, 从A开始
+	 * @return A1-》0; B1-》1...AA1-》26
+	 */
+	public static int colNameToIndex(final String colName) {
+		final int length = colName.length();
+		char c;
+		int index = -1;
+		for (int i = 0; i < length; i++) {
+			c = Character.toUpperCase(colName.charAt(i));
+			if (Character.isDigit(c)) {
+				break;// 确定指定的char值是否为数字
+			}
+			index = (index + 1) * 26 + (int) c - 'A';
+		}
+		return index;
+	}
+
+	/**
+	 * 将Excel中地址标识符（例如A11，B5）等转换为行列表示<br>
+	 * 例如：A11 -》 x:0,y:10，B5-》x:1,y:4
+	 *
+	 * @param locationRef 单元格地址标识符，例如A11，B5
+	 * @return 坐标点，x表示行，从0开始，y表示列，从0开始
+	 */
+	public static CellLocation toLocation(final String locationRef) {
+		final int x = colNameToIndex(locationRef);
+		final int y = ReUtil.getFirstNumber(locationRef) - 1;
+		return new CellLocation(x, y);
+	}
+}