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添加方法 1、采用自定义样式合并单元格，2、输出复杂格式的表头行

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修改合并单元格时边框颜色丢失问题
This commit is contained in:
znxdgwx 2021-04-26 17:13:23 +08:00
parent 4f634c384d
commit b32865ad65
3 changed files with 107 additions and 0 deletions
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56
hutool-poi/src/main/java/cn/hutool/poi/excel/ExcelWriter.java
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@ -38,6 +38,7 @@ import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TreeMap;
import java.util.Iterator;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
@ -731,6 +732,31 @@ public class ExcelWriter extends ExcelBase<ExcelWriter> {
return this;
}
/**
* 合并单元格，并写入对象到单元格,使用指定的样式<br>
* 指定样式传入null，则不使用任何样式
*
* @param firstRow 起始行，0开始
* @param lastRow 结束行，0开始
* @param firstColumn 起始列，0开始
* @param lastColumn 结束列，0开始
* @param content 合并单元格后的内容
* @param cellStyle 合并后单元格使用的样式，可以为null
* @return this
*/
public ExcelWriter merge(int firstRow, int lastRow, int firstColumn, int lastColumn, Object content, CellStyle cellStyle){
Assert.isFalse(this.isClosed, "ExcelWriter has been closed!");
CellUtil.mergingCells(this.getSheet(), firstRow, lastRow, firstColumn, lastColumn, cellStyle);
// 设置内容
if (null != content) {
final Cell cell = getOrCreateCell(firstColumn, firstRow);
CellUtil.setCellValue(cell, content, cellStyle);
}
return this;
}
/**
* 写出数据，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，当前行号自动增加<br>
@ -845,6 +871,36 @@ public class ExcelWriter extends ExcelBase<ExcelWriter> {
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<br>
* 样式为默认标题样式，可使用{@link #getHeadCellStyle()}方法调用后自定义默认样式
*
* @param rowData 一行的数据
* @return this
*/
public ExcelWriter writeSecHeadRow(Iterable<?> rowData){
final Row row = RowUtil.getOrCreateRow(this.sheet,this.currentRow.getAndIncrement());
Iterator<?> iterator = rowData.iterator();
if (row.getLastCellNum() != 0){
for (int i = 0; i < this.workbook.getSpreadsheetVersion().getMaxColumns(); i++) {
Cell cell = row.getCell(i);
if (cell == null) {
if(iterator.hasNext()){
cell = row.createCell(i);
CellUtil.setCellValue(cell, iterator.next(), this.styleSet, true);
}else{
break;
}
}
}
} else {
writeHeadRow(rowData);
}
return this;
}
/**
* 写出一行，根据rowBean数据类型不同，写出情况如下：
*

4
hutool-poi/src/main/java/cn/hutool/poi/excel/cell/CellUtil.java
View File

@ -361,6 +361,10 @@ public class CellUtil {
RegionUtil.setBorderRight(cellStyle.getBorderRight(), cellRangeAddress, sheet);
RegionUtil.setBorderBottom(cellStyle.getBorderBottom(), cellRangeAddress, sheet);
RegionUtil.setBorderLeft(cellStyle.getBorderLeft(), cellRangeAddress, sheet);
RegionUtil.setTopBorderColor(cellStyle.getTopBorderColor(),cellRangeAddress,sheet);
RegionUtil.setRightBorderColor(cellStyle.getRightBorderColor(),cellRangeAddress,sheet);
RegionUtil.setLeftBorderColor(cellStyle.getLeftBorderColor(),cellRangeAddress,sheet);
RegionUtil.setBottomBorderColor(cellStyle.getBottomBorderColor(),cellRangeAddress,sheet);
}
return sheet.addMergedRegion(cellRangeAddress);
}

47
hutool-poi/src/test/java/cn/hutool/poi/excel/ExcelWriteTest.java
View File

@ -13,6 +13,9 @@ import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.VerticalAlignment;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.util.CellRangeAddressList;
import org.junit.Ignore;
import org.junit.Test;
@ -520,4 +523,48 @@ public class ExcelWriteTest {
columnStyle.setDataFormat((short) BuiltinFormats.getBuiltinFormat("0.00"));
writer.close();
}
@Test
@Ignore
public void writeSecHeadRowTest() {
List<?> row1 = CollUtil.newArrayList(1,"aa", "bb", "cc", "dd", "ee");
List<?> row2 = CollUtil.newArrayList(2,"aa1", "bb1", "cc1", "dd1", "ee1");
List<?> row3 = CollUtil.newArrayList(3,"aa2", "bb2", "cc2", "dd2", "ee2");
List<?> row4 = CollUtil.newArrayList(4,"aa3", "bb3", "cc3", "dd3", "ee3");
List<?> row5 = CollUtil.newArrayList(5,"aa4", "bb4", "cc4", "dd4", "ee4");
List<List<?>> rows = CollUtil.newArrayList(row1, row2, row3, row4, row5);
// 通过工具类创建writer
ExcelWriter writer = ExcelUtil.getWriter("d:/test/writeSecHeadRowTest.xlsx");
CellStyle cellStyle = writer.getWorkbook().createCellStyle();
cellStyle.setWrapText(false);
cellStyle.setAlignment(HorizontalAlignment.CENTER);
cellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
//设置标题内容字体
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(0,1,0,row1.size() - 1, "标题XXXXXXXX",cellStyle);
System.out.println(writer.getCurrentRow());
//设置复杂表头
writer.merge(2,3,0,0,"序号",true);
writer.merge(2,2,1,2,"AABB",true);
writer.merge(2,3,3,3,"CCCC",true);
writer.merge(2,2,4,5,"DDEE",true);
writer.setCurrentRow(3);
List<String> sechead = CollUtil.newArrayList("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();
}
}