POI 设置单元格背景色，背景色编码与实际颜色对照表

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();

}
}

POI中背景颜色设置方法如下:
HSSFCellStyle style = workbook.createCellStyle();
style.setFillBackgroundColor(HSSFColor.AQUA.index);
cell.setCellStyle(style);

颜色类型是在HSSFColor里面定义的.