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add writeHeader

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This commit is contained in:
Looly 2024-08-29 20:24:30 +08:00
parent 54c858b8f1
commit b8991dbb76
6 changed files with 407 additions and 98 deletions
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8
hutool-core/src/main/java/org/dromara/hutool/core/reflect/ClassScanner.java
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@ -102,7 +102,7 @@ public class ClassScanner implements Serializable {
/**
* 扫描指定包路径下所有包含指定注解的类，包括其他加载的jar或者类
*
* @param packageName 包路径
* @param packageName 包路径，{@code null}表示扫描全部
* @param annotationClass 注解类
* @return 类集合
*/
@ -114,7 +114,7 @@ public class ClassScanner implements Serializable {
* 扫描指定包路径下所有包含指定注解的类<br>
* 如果classpath下已经有类，不再扫描其他加载的jar或者类
*
* @param packageName 包路径
* @param packageName 包路径，{@code null}表示扫描全部
* @param annotationClass 注解类
* @return 类集合
*/
@ -125,7 +125,7 @@ public class ClassScanner implements Serializable {
/**
* 扫描指定包路径下所有指定类或接口的子类或实现类，不包括指定父类本身，包括其他加载的jar或者类
*
* @param packageName 包路径
* @param packageName 包路径，{@code null}表示扫描全部
* @param superClass 父类或接口（不包括）
* @return 类集合
*/
@ -137,7 +137,7 @@ public class ClassScanner implements Serializable {
* 扫描指定包路径下所有指定类或接口的子类或实现类，不包括指定父类本身<br>
* 如果classpath下已经有类，不再扫描其他加载的jar或者类
*
* @param packageName 包路径
* @param packageName 包路径，{@code null}表示扫描全部
* @param superClass 父类或接口（不包括）
* @return 类集合
*/

188
hutool-poi/src/main/java/org/dromara/hutool/poi/excel/RowGroup.java Normal file
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@ -0,0 +1,188 @@
/*
* Copyright (c) 2024 Hutool Team and hutool.cn
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.dromara.hutool.poi.excel;
import org.apache.poi.ss.usermodel.CellStyle;
import org.dromara.hutool.core.collection.CollUtil;
import java.io.Serializable;
import java.util.LinkedList;
import java.util.List;
/**
* 分组行<br>
* 用于标识和写出复杂表头。
* 分组概念灵感来自于EasyPOI的设计理念，见：https://blog.csdn.net/qq_45752401/article/details/121250993
*
* @author Looly
* @since 6.0.0
*/
public class RowGroup implements Serializable {
private static final long serialVersionUID = 1L;
/**
* 创建分组
*
* @param name 分组名称
* @return RowGroup
*/
public static RowGroup of(final String name) {
return new RowGroup(name);
}
private String name;
private CellStyle style;
private List<RowGroup> children;
/**
* 构造
*
* @param name 分组名称
*/
public RowGroup(final String name) {
this.name = name;
}
/**
* 获取分组名称
*
* @return 分组名称
*/
public String getName() {
return name;
}
/**
* 设置分组名称
*
* @param name 分组名称
* @return this
*/
public RowGroup setName(final String name) {
this.name = name;
return this;
}
/**
* 获取样式
*
* @return 样式
*/
public CellStyle getStyle() {
return style;
}
/**
* 设置样式
*
* @param style 样式
* @return this
*/
public RowGroup setStyle(final CellStyle style) {
this.style = style;
return this;
}
/**
* 获取子分组
*
* @return 子分组
*/
public List<RowGroup> getChildren() {
return children;
}
/**
* 设置子分组
*
* @param children 子分组
* @return this
*/
public RowGroup setChildren(final List<RowGroup> children) {
this.children = children;
return this;
}
/**
* 添加指定名臣的子分组，最终分组
*
* @param name 子分组的名称
* @return this
*/
public RowGroup addChild(final String name) {
return addChild(of(name));
}
/**
* 添加子分组
*
* @param child 子分组
* @return this
*/
public RowGroup addChild(final RowGroup child) {
if (null == this.children) {
// 无随机获取节点，节省空间
this.children = new LinkedList<>();
}
this.children.add(child);
return this;
}
/**
* 分组占用的最大列数，取决于子分组占用列数
*
* @return 列数
*/
public int maxColumnCount() {
if (CollUtil.isEmpty(this.children)) {
// 无子分组，1列
return 1;
}
return children.stream().mapToInt(RowGroup::maxColumnCount).sum();
}
/**
* 获取最大行数，取决于子分组行数<br>
* 结果为：标题行占用行数 + 子分组占用行数
*
* @return 最大行数
*/
public int maxRowCount() {
int maxRowCount = childrenMaxRowCount();
if (null != this.name) {
maxRowCount++;
}
if (0 == maxRowCount) {
throw new IllegalArgumentException("Empty RowGroup!, please set the name or add children.");
}
return maxRowCount;
}
/**
* 获取子分组最大占用行数
* @return 子分组最大占用行数
*/
public int childrenMaxRowCount() {
int maxRowCount = 0;
if (null != this.children) {
maxRowCount = this.children.stream().mapToInt(RowGroup::maxRowCount).max().orElse(0);
}
return maxRowCount;
}
}

107
hutool-poi/src/main/java/org/dromara/hutool/poi/excel/writer/ExcelWriter.java
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@ -21,6 +21,7 @@ import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.CellRangeAddressList;
import org.apache.poi.ss.util.CellReference;
import org.dromara.hutool.core.bean.BeanUtil;
import org.dromara.hutool.core.collection.CollUtil;
import org.dromara.hutool.core.io.IORuntimeException;
import org.dromara.hutool.core.io.IoUtil;
import org.dromara.hutool.core.io.file.FileUtil;
@ -29,7 +30,6 @@ import org.dromara.hutool.poi.POIException;
import org.dromara.hutool.poi.excel.*;
import org.dromara.hutool.poi.excel.cell.CellRangeUtil;
import org.dromara.hutool.poi.excel.cell.CellUtil;
import org.dromara.hutool.poi.excel.cell.editors.CellEditor;
import org.dromara.hutool.poi.excel.style.*;
import java.awt.Color;
@ -37,7 +37,7 @@ import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
@ -644,7 +644,9 @@ public class ExcelWriter extends ExcelBase<ExcelWriter, ExcelWriteConfig> {
public ExcelWriter merge(final CellRangeAddress cellRangeAddress, final Object content, final CellStyle cellStyle) {
checkClosed();
if(cellRangeAddress.getNumberOfCells() > 1){
CellUtil.mergingCells(this.getSheet(), cellRangeAddress, cellStyle);
}
// 设置内容
if (null != content) {
@ -744,6 +746,63 @@ public class ExcelWriter extends ExcelBase<ExcelWriter, ExcelWriteConfig> {
}
return this;
}
/**
* 写出分组标题行
*
* @param rowGroup 分组行
* @return this
*/
public ExcelWriter writeHeader(final RowGroup rowGroup) {
return writeHeader(0, getCurrentRow(), 1, rowGroup);
}
/**
* 写出分组标题行
*
* @param x 开始的列，下标从0开始
* @param y 开始的行，下标从0开始
* @param rowCount 当前分组行所占行数，此数值为标题占用行数+子分组占用的最大行数，不确定传1
* @param rowGroup 分组行
* @return this
*/
@SuppressWarnings("resource")
public ExcelWriter writeHeader(int x, int y, int rowCount, final RowGroup rowGroup) {
// 写主标题
final String name = rowGroup.getName();
final List<RowGroup> children = rowGroup.getChildren();
if (null != name) {
if(!CollUtil.isEmpty(children)){
// 有子节点，标题行只占用除子节点占用的行数
rowCount = Math.max(1, rowCount - rowGroup.childrenMaxRowCount());
//nameRowCount = 1;
}
// 如果无子节点，则标题行占用所有行
final CellRangeAddress cellAddresses = CellRangeUtil.of(y, y + rowCount - 1, x, x + rowGroup.maxColumnCount() - 1);
final CellStyle style = rowGroup.getStyle();
if(null == style){
merge(cellAddresses, name, true);
} else{
merge(cellAddresses, name, style);
}
// 子分组写到下N行
y += rowCount;
}
// 写分组
final int childrenMaxRowCount = rowGroup.childrenMaxRowCount();
if(childrenMaxRowCount > 0){
for (final RowGroup child : children) {
// 子分组行高填充为当前分组最大值
writeHeader(x, y, childrenMaxRowCount, child);
x += child.maxColumnCount();
}
}
return this;
}
// endregion
// region ----- writeImg
@ -859,49 +918,9 @@ public class ExcelWriter extends ExcelBase<ExcelWriter, ExcelWriteConfig> {
* @param rowData 一行的数据
* @return this
*/
public ExcelWriter writeHeadRow(final Iterable<?> rowData) {
public ExcelWriter writeHeaderRow(final Iterable<?> rowData) {
checkClosed();
getSheetDataWriter().writeHeadRow(rowData);
return this;
}
/**
* 写出复杂标题的第二行标题数据<br>
* 本方法只是将数据写入Workbook中的Sheet，并不写出到文件<br>
* 写出的起始行为当前行号，可使用{@link #getCurrentRow()}方法调用，根据写出的的行数，当前行号自动+1
*
* <p>
* 此方法的逻辑是：将一行数据写出到当前行，遇到已存在的单元格跳过，不存在的创建并赋值。
* </p>
*
* @param rowData 一行的数据
* @return this
*/
@SuppressWarnings("resource")
public ExcelWriter writeSecHeadRow(final Iterable<?> rowData) {
checkClosed();
final Row row = getOrCreateRow(getCurrentRow());
passCurrentRow();
final Iterator<?> iterator = rowData.iterator();
//如果获取的row存在单元格，则执行复杂表头逻辑，否则直接调用writeHeadRow(Iterable<?> rowData)
if (row.getLastCellNum() != 0) {
final CellEditor cellEditor = this.config.getCellEditor();
for (int i = 0; ; i++) {
Cell cell = row.getCell(i);
if (cell != null) {
continue;
}
if (iterator.hasNext()) {
cell = row.createCell(i);
CellUtil.setCellValue(cell, iterator.next(), this.styleSet, true, cellEditor);
} else {
break;
}
}
} else {
writeHeadRow(rowData);
}
getSheetDataWriter().writeHeaderRow(rowData);
return this;
}

4
hutool-poi/src/main/java/org/dromara/hutool/poi/excel/writer/SheetDataWriter.java
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@ -149,7 +149,7 @@ public class SheetDataWriter {
final Table<?, ?, ?> aliasTable = this.config.aliasTable(rowMap);
if (isWriteKeyAsHead) {
// 写出标题行，并记录标题别名和列号的关系
writeHeadRow(aliasTable.columnKeys());
writeHeaderRow(aliasTable.columnKeys());
// 记录原数据key和别名对应列号
int i = 0;
for (final Object key : aliasTable.rowKeySet()) {
@ -183,7 +183,7 @@ public class SheetDataWriter {
* @param rowData 一行的数据
* @return this
*/
public SheetDataWriter writeHeadRow(final Iterable<?> rowData) {
public SheetDataWriter writeHeaderRow(final Iterable<?> rowData) {
this.headLocationCache = new SafeConcurrentHashMap<>();
final int rowNum = this.currentRow.getAndIncrement();

48
hutool-poi/src/test/java/org/dromara/hutool/poi/excel/writer/ExcelWriteTest.java
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@ -662,52 +662,6 @@ public class ExcelWriteTest {
writer.close();
}
@Test
@Disabled
public void writeSecHeadRowTest() {
final List<?> row1 = ListUtil.of(1, "aa", "bb", "cc", "dd", "ee");
final List<?> row2 = ListUtil.of(2, "aa1", "bb1", "cc1", "dd1", "ee1");
final List<?> row3 = ListUtil.of(3, "aa2", "bb2", "cc2", "dd2", "ee2");
final List<?> row4 = ListUtil.of(4, "aa3", "bb3", "cc3", "dd3", "ee3");
final List<?> row5 = ListUtil.of(5, "aa4", "bb4", "cc4", "dd4", "ee4");
final List<List<?>> rows = ListUtil.of(row1, row2, row3, row4, row5);
// 通过工具类创建writer
final ExcelWriter writer = ExcelUtil.getWriter("d:/test/writeSecHeadRowTest.xlsx");
final CellStyle cellStyle = writer.getWorkbook().createCellStyle();
cellStyle.setWrapText(false);
cellStyle.setAlignment(HorizontalAlignment.CENTER);
cellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
//设置标题内容字体
final Font font = writer.createFont();
font.setBold(true);
font.setFontHeightInPoints((short) 15);
font.setFontName("Arial");
//设置边框样式
StyleUtil.setBorder(cellStyle, BorderStyle.THICK, IndexedColors.RED);
cellStyle.setFont(font);
// 合并单元格后的标题行，使用设置好的样式
writer.merge(new CellRangeAddress(0, 1, 0, row1.size() - 1), "标题XXXXXXXX", cellStyle);
Console.log(writer.getCurrentRow());
//设置复杂表头
writer.merge(new CellRangeAddress(2, 3, 0, 0), "序号", true);
writer.merge(new CellRangeAddress(2, 2, 1, 2), "AABB", true);
writer.merge(new CellRangeAddress(2, 3, 3, 3), "CCCC", true);
writer.merge(new CellRangeAddress(2, 2, 4, 5), "DDEE", true);
writer.setCurrentRow(3);
final List<String> sechead = ListUtil.of("AA", "BB", "DD", "EE");
writer.writeSecHeadRow(sechead);
// 一次性写出内容，使用默认样式
writer.write(rows);
// 关闭writer，释放内存
writer.close();
}
/**
* issue#1659@Github
* 测试使用BigWriter写出，ExcelWriter修改失败
@ -782,7 +736,7 @@ public class ExcelWriteTest {
@Disabled
public void changeHeaderStyleTest() {
final ExcelWriter writer = ExcelUtil.getWriter("d:/test/headerStyle.xlsx");
writer.writeHeadRow(ListUtil.view("姓名", "性别", "年龄"));
writer.writeHeaderRow(ListUtil.view("姓名", "性别", "年龄"));
final CellStyle headCellStyle = ((DefaultStyleSet)writer.getStyleSet()).getHeadCellStyle();
headCellStyle.setFillForegroundColor(IndexedColors.YELLOW1.index);
headCellStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);

148
hutool-poi/src/test/java/org/dromara/hutool/poi/excel/writer/RowGroupTest.java Normal file
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@ -0,0 +1,148 @@
package org.dromara.hutool.poi.excel.writer;
import org.apache.poi.ss.usermodel.*;
import org.dromara.hutool.core.io.file.FileUtil;
import org.dromara.hutool.poi.excel.ExcelUtil;
import org.dromara.hutool.poi.excel.RowGroup;
import org.dromara.hutool.poi.excel.style.StyleUtil;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
/**
* https://blog.csdn.net/qq_45752401/article/details/121250993
*/
public class RowGroupTest {
@Test
@Disabled
void writeSingleRowGroupTest() {
final RowGroup rowGroup = RowGroup.of("分组表格测试");
final ExcelWriter writer = ExcelUtil.getWriter();
writer.writeHeader(rowGroup);
writer.flush(FileUtil.file("d:/test/poi/singleRowGroup.xlsx"), true);
writer.close();
}
@Test
@Disabled
void writeListRowGroupTest() {
final RowGroup rowGroup = RowGroup.of(null)
.addChild("标题1")
.addChild("标题2")
.addChild("标题3")
.addChild("标题4");
final ExcelWriter writer = ExcelUtil.getWriter();
writer.writeHeader(rowGroup);
writer.flush(FileUtil.file("d:/test/poi/listRowGroup.xlsx"), true);
writer.close();
}
@Test
@Disabled
void writeOneRowGroupTest() {
final RowGroup rowGroup = RowGroup.of("基本信息")
.addChild(RowGroup.of("名称2"))
.addChild(RowGroup.of("名称3"));
final ExcelWriter writer = ExcelUtil.getWriter();
writer.writeHeader(rowGroup);
writer.flush(FileUtil.file("d:/test/poi/oneRowGroup.xlsx"), true);
writer.close();
}
@Test
@Disabled
void writeOneRowGroupWithStyleTest() {
final ExcelWriter writer = ExcelUtil.getWriter();
final CellStyle cellStyle = writer.getWorkbook().createCellStyle();
cellStyle.setWrapText(false);
cellStyle.setAlignment(HorizontalAlignment.CENTER);
cellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
//设置标题内容字体
final Font font = writer.createFont();
font.setBold(true);
font.setFontHeightInPoints((short) 15);
font.setFontName("Arial");
//设置边框样式
StyleUtil.setBorder(cellStyle, BorderStyle.THICK, IndexedColors.RED);
cellStyle.setFont(font);
final RowGroup rowGroup = RowGroup.of("基本信息")
.setStyle(cellStyle)
.addChild(RowGroup.of("名称2"))
.addChild(RowGroup.of("名称3"));
writer.writeHeader(rowGroup);
writer.flush(FileUtil.file("d:/test/poi/oneRowGroupWithStyle.xlsx"), true);
writer.close();
}
@Test
@Disabled
void writeRowGroupTest() {
final RowGroup rowGroup = RowGroup.of("分组表格测试")
.addChild(RowGroup.of("序号"))
.addChild(
RowGroup.of("基本信息")
.addChild(RowGroup.of("名称1"))
.addChild(RowGroup.of("名称15")
.addChild(RowGroup.of("名称2"))
.addChild(RowGroup.of("名称3"))
)
.addChild(RowGroup.of("信息16")
.addChild(RowGroup.of("名称4"))
.addChild(RowGroup.of("名称5"))
.addChild(RowGroup.of("名称6"))
)
.addChild(RowGroup.of("信息7"))
)
.addChild(RowGroup.of("特殊信息")
.addChild(RowGroup.of("名称9"))
.addChild(RowGroup.of("名称17")
.addChild(RowGroup.of("名称10"))
.addChild(RowGroup.of("名称11"))
)
.addChild(RowGroup.of("名称18")
.addChild(RowGroup.of("名称12"))
.addChild(RowGroup.of("名称13"))
)
)
.addChild(RowGroup.of("名称14"));
final ExcelWriter writer = ExcelUtil.getWriter();
writer.writeHeader(rowGroup);
writer.flush(FileUtil.file("d:/test/poi/rowGroup.xlsx"), true);
writer.close();
}
@Test
@Disabled
void writeRowGroupTest2() {
final RowGroup rowGroup = RowGroup.of("分组表格测试")
.addChild(RowGroup.of("序号"))
.addChild(
RowGroup.of("基本信息")
.addChild(RowGroup.of("名称1"))
.addChild(RowGroup.of("名称15")
.addChild(RowGroup.of("名称2"))
.addChild(RowGroup.of("名称3")
.addChild(RowGroup.of("名称3-1"))
.addChild(RowGroup.of("名称3-2"))
)
)
.addChild(RowGroup.of("信息16")
.addChild(RowGroup.of("名称4"))
.addChild(RowGroup.of("名称5"))
.addChild(RowGroup.of("名称6"))
)
.addChild(RowGroup.of("信息7"))
);
final ExcelWriter writer = ExcelUtil.getWriter();
writer.writeHeader(rowGroup);
writer.flush(FileUtil.file("d:/test/poi/rowGroup2.xlsx"), true);
writer.close();
}
}