使用POI生成XLS，展示其颜色值

package test;

import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.apache.log4j.Logger;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;

public class Test {
	private static final Logger logger = Logger.getLogger(Test.class);

	public static void main(String[] args) throws IOException {
		String text[] = { "BLACK", "BROWN", "OLIVE_GREEN", "DARK_GREEN",
				"DARK_TEAL", "DARK_BLUE", "INDIGO", "GREY_80_PERCENT",
				"ORANGE", "DARK_YELLOW", "GREEN", "TEAL", "BLUE", "BLUE_GREY",
				"GREY_50_PERCENT", "RED", "LIGHT_ORANGE", "LIME", "SEA_GREEN",
				"AQUA", "LIGHT_BLUE", "VIOLET", "GREY_40_PERCENT", "PINK",
				"GOLD", "YELLOW", "BRIGHT_GREEN", "TURQUOISE", "DARK_RED",
				"SKY_BLUE", "PLUM", "GREY_25_PERCENT", "ROSE", "LIGHT_YELLOW",
				"LIGHT_GREEN", "LIGHT_TURQUOISE", "PALE_BLUE", "LAVENDER",
				"WHITE", "CORNFLOWER_BLUE", "LEMON_CHIFFON", "MAROON",
				"ORCHID", "CORAL", "ROYAL_BLUE", "LIGHT_CORNFLOWER_BLUE", "TAN" };
		short color[] = { HSSFColor.BLACK.index, HSSFColor.BROWN.index,
				HSSFColor.OLIVE_GREEN.index, HSSFColor.DARK_GREEN.index,
				HSSFColor.DARK_TEAL.index, HSSFColor.DARK_BLUE.index,
				HSSFColor.INDIGO.index, HSSFColor.GREY_80_PERCENT.index,
				HSSFColor.ORANGE.index, HSSFColor.DARK_YELLOW.index,
				HSSFColor.GREEN.index, HSSFColor.TEAL.index,
				HSSFColor.BLUE.index, HSSFColor.BLUE_GREY.index,
				HSSFColor.GREY_50_PERCENT.index, HSSFColor.RED.index,
				HSSFColor.LIGHT_ORANGE.index, HSSFColor.LIME.index,
				HSSFColor.SEA_GREEN.index, HSSFColor.AQUA.index,
				HSSFColor.LIGHT_BLUE.index, HSSFColor.VIOLET.index,
				HSSFColor.GREY_40_PERCENT.index, HSSFColor.PINK.index,
				HSSFColor.GOLD.index, HSSFColor.YELLOW.index,
				HSSFColor.BRIGHT_GREEN.index, HSSFColor.TURQUOISE.index,
				HSSFColor.DARK_RED.index, HSSFColor.SKY_BLUE.index,
				HSSFColor.PLUM.index, HSSFColor.GREY_25_PERCENT.index,
				HSSFColor.ROSE.index, HSSFColor.LIGHT_YELLOW.index,
				HSSFColor.LIGHT_GREEN.index, HSSFColor.LIGHT_TURQUOISE.index,
				HSSFColor.PALE_BLUE.index, HSSFColor.LAVENDER.index,
				HSSFColor.WHITE.index, HSSFColor.CORNFLOWER_BLUE.index,
				HSSFColor.LEMON_CHIFFON.index, HSSFColor.MAROON.index,
				HSSFColor.ORCHID.index, HSSFColor.CORAL.index,
				HSSFColor.ROYAL_BLUE.index,
				HSSFColor.LIGHT_CORNFLOWER_BLUE.index, HSSFColor.TAN.index };
		HSSFWorkbook wb = new HSSFWorkbook(); // 创建Excel
		HSSFSheet sheet = wb.createSheet(); // 创建Excel表单
		sheet.setDefaultColumnWidth(25); // 表单的默认宽度
		int row = 0, col_per_row = 5;
		HSSFRow fRow = sheet.createRow(row++);
		for (int i = 0; i < color.length; i++) {
			if (i % col_per_row == 0) { // 每行5列
				fRow = sheet.createRow(row++);
			}
			HSSFCell fCell = fRow.createCell(i % col_per_row);
			HSSFCellStyle cellStyle = createNormalCellStyle(wb, color[i]);
			fCell.setCellStyle(cellStyle);
			fCell.setCellValue(text[i]);
		}
		write2file(wb);
	}

	private static HSSFCellStyle createNormalCellStyle(HSSFWorkbook wb,
			short color) {
		HSSFCellStyle fCellStyle = wb.createCellStyle();
		fCellStyle.setFillForegroundColor(color);
		fCellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
		// 指定单元格居中对齐，边框为细
		fCellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
		fCellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
		// 指定当单元格内容显示不下时自动换行
		fCellStyle.setWrapText(true);
		fCellStyle.setShrinkToFit(true);
		return fCellStyle;
	}

	private static void write2file(HSSFWorkbook wb) {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss_SSS");
		String fileName = sdf.format(new Date()) + ".xls";
		logger.info("exportExcel, fileName:" + fileName);
		try {
			FileOutputStream fileOut = new FileOutputStream(fileName);
			wb.write(fileOut);
			fileOut.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}