pio 背景色

This example shows you Excel cell fills and colors using Apache POI.
In our example i have used all the possible colors and set it as Fills background colors of cells.
Below is the example code.
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package com.java.connect.poi;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 
public class POIFillAndColorExample {
    public static void main(String[] args) throws IOException {
        // Create a workbook object
        Workbook workbook = new XSSFWorkbook();
        // Create sheet
        Sheet sheet = workbook.createSheet();
 
        // Create a row and put some cells in it.
        Row row = sheet.createRow((short) 1);
 
        // Aqua background
        CellStyle style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.AQUA.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        Cell cell = row.createCell((short) 1);
        cell.setCellValue("X1");
        cell.setCellStyle(style);
 
        // Orange "foreground", foreground being the fill foreground not the
        // font color.
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.AUTOMATIC.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row.createCell((short) 2);
        cell.setCellValue("X2");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.BLUE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row.createCell((short) 3);
        cell.setCellValue("X3");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.BLUE_GREY.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row.createCell((short) 4);
        cell.setCellValue("X4");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.BRIGHT_GREEN.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row.createCell((short) 5);
        cell.setCellValue("X5");
        cell.setCellStyle(style);
 
        // Create a row and put some cells in it.
        Row row2 = sheet.createRow((short) 2);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.BROWN.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row2.createCell((short) 1);
        cell.setCellValue("X6");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.CORAL.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row2.createCell((short) 2);
        cell.setCellValue("X7");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.CORNFLOWER_BLUE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row2.createCell((short) 3);
        cell.setCellValue("X8");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.DARK_BLUE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row2.createCell((short) 4);
        cell.setCellValue("X9");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.DARK_GREEN.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row2.createCell((short) 5);
        cell.setCellValue("X10");
        cell.setCellStyle(style);
 
        // Create a row and put some cells in it.
        Row row3 = sheet.createRow((short) 3);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.DARK_RED.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row3.createCell((short) 1);
        cell.setCellValue("X11");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.DARK_TEAL.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row3.createCell((short) 2);
        cell.setCellValue("X12");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.DARK_YELLOW.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row3.createCell((short) 3);
        cell.setCellValue("X13");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.GOLD.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row3.createCell((short) 4);
        cell.setCellValue("X14");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.GREEN.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row3.createCell((short) 5);
        cell.setCellValue("X15");
        cell.setCellStyle(style);
 
        // Create a row and put some cells in it.
        Row row4 = sheet.createRow((short) 4);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row4.createCell((short) 1);
        cell.setCellValue("X16");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.GREY_40_PERCENT.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row4.createCell((short) 2);
        cell.setCellValue("X17");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row4.createCell((short) 3);
        cell.setCellValue("X18");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.GREY_80_PERCENT.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row4.createCell((short) 4);
        cell.setCellValue("X19");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.INDIGO.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row4.createCell((short) 5);
        cell.setCellValue("X20");
        cell.setCellStyle(style);
 
        // Create a row and put some cells in it.
        Row row5 = sheet.createRow((short) 5);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LAVENDER.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row5.createCell((short) 1);
        cell.setCellValue("X21");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LEMON_CHIFFON.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row5.createCell((short) 2);
        cell.setCellValue("X22");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LIGHT_BLUE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row5.createCell((short) 3);
        cell.setCellValue("X23");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LEMON_CHIFFON.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row5.createCell((short) 4);
        cell.setCellValue("X24");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LIGHT_BLUE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row5.createCell((short) 5);
        cell.setCellValue("X25");
        cell.setCellStyle(style);
 
        // Create a row and put some cells in it.
        Row row6 = sheet.createRow((short) 6);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LIGHT_CORNFLOWER_BLUE
                .getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row6.createCell((short) 1);
        cell.setCellValue("X26");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LIGHT_GREEN.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row6.createCell((short) 2);
        cell.setCellValue("X27");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LIGHT_ORANGE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row6.createCell((short) 3);
        cell.setCellValue("X28");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LIGHT_TURQUOISE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row6.createCell((short) 4);
        cell.setCellValue("X29");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LIGHT_YELLOW.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row6.createCell((short) 5);
        cell.setCellValue("X30");
        cell.setCellStyle(style);
 
        // Create a row and put some cells in it.
        Row row7 = sheet.createRow((short) 7);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.LIME.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row7.createCell((short) 1);
        cell.setCellValue("X31");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.MAROON.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row7.createCell((short) 2);
        cell.setCellValue("X32");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.OLIVE_GREEN.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row7.createCell((short) 3);
        cell.setCellValue("X33");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.ORANGE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row7.createCell((short) 4);
        cell.setCellValue("X34");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.ORCHID.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row7.createCell((short) 5);
        cell.setCellValue("X35");
        cell.setCellStyle(style);
 
        // Create a row and put some cells in it.
        Row row8 = sheet.createRow((short) 8);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.PALE_BLUE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row8.createCell((short) 1);
        cell.setCellValue("X36");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.PINK.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row8.createCell((short) 2);
        cell.setCellValue("X37");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.PLUM.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row8.createCell((short) 3);
        cell.setCellValue("X38");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.RED.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row8.createCell((short) 4);
        cell.setCellValue("X39");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.ROSE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row8.createCell((short) 5);
        cell.setCellValue("X40");
        cell.setCellStyle(style);
 
        // Create a row and put some cells in it.
        Row row9 = sheet.createRow((short) 9);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.ROYAL_BLUE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row9.createCell((short) 1);
        cell.setCellValue("X41");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.SEA_GREEN.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row9.createCell((short) 2);
        cell.setCellValue("X42");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.SKY_BLUE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row9.createCell((short) 3);
        cell.setCellValue("X43");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.TAN.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row9.createCell((short) 4);
        cell.setCellValue("X44");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.TEAL.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row9.createCell((short) 5);
        cell.setCellValue("X45");
        cell.setCellStyle(style);
 
        // Create a row and put some cells in it.
        Row row10 = sheet.createRow((short) 10);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.TURQUOISE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row10.createCell((short) 1);
        cell.setCellValue("X46");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.VIOLET.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row10.createCell((short) 2);
        cell.setCellValue("X47");
        cell.setCellStyle(style);
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.WHITE.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row10.createCell((short) 3);
        cell.setCellValue("X48");
        cell.setCellStyle(style);
 
        style = workbook.createCellStyle();
        style.setFillForegroundColor(IndexedColors.YELLOW.getIndex());
        style.setFillPattern(CellStyle.SOLID_FOREGROUND);
        cell = row10.createCell((short) 3);
        cell.setCellValue("X49");
        cell.setCellStyle(style);
 
        // Write the output to a file
        FileOutputStream fileOut = new FileOutputStream(
                "POIFillAndColorExample.xlsx");
        workbook.write(fileOut);
        fileOut.close();
 
    }
}