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Excel Cell Border Example (#11472) 

Co-authored-by: Seshu Thanneeru <seshukumar.thanneeru@thoughtdata.com>
This commit is contained in:
Seshu Kumar T 2021-11-18 23:34:28 +05:30 committed by GitHub
parent bc58e50b59
commit b8861e8ea3
2 changed files with 167 additions and 0 deletions
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37
apache-poi/src/main/java/com/baeldung/poi/excel/cellstyle/CellBordersHandler.java Normal file
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package com.baeldung.poi.excel.cellstyle;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.RegionUtil;
public class CellBordersHandler {
public void setRegionBorder(CellRangeAddress region, Sheet sheet, BorderStyle borderStyle) {
RegionUtil.setBorderTop(borderStyle, region, sheet);
RegionUtil.setBorderBottom(borderStyle, region, sheet);
RegionUtil.setBorderLeft(borderStyle, region, sheet);
RegionUtil.setBorderRight(borderStyle, region, sheet);
}
public void setRegionBorderWithColor(CellRangeAddress region, Sheet sheet, BorderStyle borderStyle, short color) {
RegionUtil.setTopBorderColor(color, region, sheet);
RegionUtil.setBottomBorderColor(color, region, sheet);
RegionUtil.setLeftBorderColor(color, region, sheet);
RegionUtil.setRightBorderColor(color, region, sheet);
RegionUtil.setBorderTop(borderStyle, region, sheet);
RegionUtil.setBorderBottom(borderStyle, region, sheet);
RegionUtil.setBorderLeft(borderStyle, region, sheet);
RegionUtil.setBorderRight(borderStyle, region, sheet);
}
public void setCrazyBorder(CellRangeAddress region, Sheet sheet) {
RegionUtil.setTopBorderColor(IndexedColors.RED.index, region, sheet);
RegionUtil.setBottomBorderColor(IndexedColors.GREEN.index, region, sheet);
RegionUtil.setLeftBorderColor(IndexedColors.BLUE.index, region, sheet);
RegionUtil.setRightBorderColor(IndexedColors.VIOLET.index, region, sheet);
RegionUtil.setBorderTop(BorderStyle.DASH_DOT, region, sheet);
RegionUtil.setBorderBottom(BorderStyle.DOUBLE, region, sheet);
RegionUtil.setBorderLeft(BorderStyle.DOTTED, region, sheet);
RegionUtil.setBorderRight(BorderStyle.SLANTED_DASH_DOT, region, sheet);
}
}

130
apache-poi/src/test/java/com/baeldung/poi/excel/cellstyle/CellBorderHandlerUnitTest.java Normal file
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package com.baeldung.poi.excel.cellstyle;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.*;
import java.io.IOException;
import java.net.URISyntaxException;
import java.nio.file.Paths;
import static org.junit.Assert.assertEquals;
public class CellBorderHandlerUnitTest {
private static final String FILE_NAME = "cellstyle/CellStyleHandlerTest.xlsx";
private static final int SHEET_INDEX = 0;
private static CellBordersHandler cellBordersHandler;
private static Workbook workbook;
@BeforeClass
public static void setup() throws URISyntaxException, IOException {
String fileLocation = Paths.get(ClassLoader.getSystemResource(FILE_NAME).toURI()).toString();
cellBordersHandler = new CellBordersHandler();
workbook = new XSSFWorkbook(fileLocation);
createRowsAndCells(workbook);
}
private static void createRowsAndCells(Workbook workbook) {
Sheet sheet = workbook.getSheetAt(SHEET_INDEX);
for (int rowIndex = 0; rowIndex < 10; rowIndex++) {
Row row = sheet.getRow(rowIndex);
if (row == null) {
row = sheet.createRow(rowIndex);
}
for (int colIndex = 0; colIndex < 10; colIndex++) {
Cell cell = row.getCell(colIndex);
if (cell == null) {
row.createCell(colIndex);
}
}
}
}
@Test
public void givenWorkbookCell_whenSetRegionBorder() {
Sheet sheet = workbook.getSheetAt(SHEET_INDEX);
CellRangeAddress region = new CellRangeAddress(1, 1, 1, 1);
cellBordersHandler.setRegionBorder(region, sheet, BorderStyle.THICK);
Row row = sheet.getRow(1);
Cell cell = row.getCell(1);
assertEquals(cell.getCellStyle().getBorderTop(), BorderStyle.THICK);
assertEquals(cell.getCellStyle().getBorderBottom(), BorderStyle.THICK);
assertEquals(cell.getCellStyle().getBorderLeft(), BorderStyle.THICK);
assertEquals(cell.getCellStyle().getBorderRight(), BorderStyle.THICK);
}
@Test
public void givenWorkbookCell_whenSetRegionBorderWithColor() {
Sheet sheet = workbook.getSheetAt(SHEET_INDEX);
CellRangeAddress region = new CellRangeAddress(1, 1, 3, 3);
cellBordersHandler.setRegionBorderWithColor(region, sheet, BorderStyle.THICK, IndexedColors.MAROON.index);
Row row = sheet.getRow(1);
Cell cell = row.getCell(1 + 2);
assertEquals(cell.getCellStyle().getBorderTop(), BorderStyle.THICK);
assertEquals(cell.getCellStyle().getBorderBottom(), BorderStyle.THICK);
assertEquals(cell.getCellStyle().getBorderLeft(), BorderStyle.THICK);
assertEquals(cell.getCellStyle().getBorderRight(), BorderStyle.THICK);
assertEquals(cell.getCellStyle().getTopBorderColor(), IndexedColors.MAROON.index);
assertEquals(cell.getCellStyle().getBottomBorderColor(), IndexedColors.MAROON.index);
assertEquals(cell.getCellStyle().getLeftBorderColor(), IndexedColors.MAROON.index);
assertEquals(cell.getCellStyle().getRightBorderColor(), IndexedColors.MAROON.index);
}
@Test
public void givenWorkbookCell_whenSetCrazyBorder() {
Sheet sheet = workbook.getSheetAt(SHEET_INDEX);
CellRangeAddress region = new CellRangeAddress(1, 1, 5, 5);
cellBordersHandler.setCrazyBorder(region, sheet);
Row row = sheet.getRow(1);
Cell cell = row.getCell(5);
assertEquals(cell.getCellStyle().getBorderTop(), BorderStyle.DASH_DOT);
assertEquals(cell.getCellStyle().getBorderBottom(), BorderStyle.DOUBLE);
assertEquals(cell.getCellStyle().getBorderLeft(), BorderStyle.DOTTED);
assertEquals(cell.getCellStyle().getBorderRight(), BorderStyle.SLANTED_DASH_DOT);
assertEquals(cell.getCellStyle().getTopBorderColor(), IndexedColors.RED.index);
assertEquals(cell.getCellStyle().getBottomBorderColor(), IndexedColors.GREEN.index);
assertEquals(cell.getCellStyle().getLeftBorderColor(), IndexedColors.BLUE.index);
assertEquals(cell.getCellStyle().getRightBorderColor(), IndexedColors.VIOLET.index);
}
@Test
public void givenWorkbookRegion_whenSetRegionBorder() {
Sheet sheet = workbook.getSheetAt(SHEET_INDEX);
CellRangeAddress region = new CellRangeAddress(3, 5, 1, 5);
cellBordersHandler.setRegionBorder(region, sheet, BorderStyle.MEDIUM);
Row row = sheet.getRow(3);
Cell cell = row.getCell(1);
assertEquals(cell.getCellStyle().getBorderTop(), BorderStyle.MEDIUM);
assertEquals(cell.getCellStyle().getBorderLeft(), BorderStyle.MEDIUM);
}
@Test
public void givenWorkbookRegion_whenSetRegionBorderWithColor() {
Sheet sheet = workbook.getSheetAt(SHEET_INDEX);
CellRangeAddress region = new CellRangeAddress(7, 8, 1, 5);
cellBordersHandler.setRegionBorderWithColor(region, sheet, BorderStyle.MEDIUM, IndexedColors.ORANGE.index);
Row row = sheet.getRow(7);
Cell cell = row.getCell(1);
assertEquals(cell.getCellStyle().getBorderTop(), BorderStyle.MEDIUM);
assertEquals(cell.getCellStyle().getBorderLeft(), BorderStyle.MEDIUM);
assertEquals(cell.getCellStyle().getTopBorderColor(), IndexedColors.ORANGE.index);
assertEquals(cell.getCellStyle().getLeftBorderColor(), IndexedColors.ORANGE.index);
}
@AfterClass
public static void close() throws IOException {
workbook.close();
}
}