Java生成Excel

import java.io.FileOutputStream;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFPalette;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
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 Excel {
	public static void main(String argv[]) {
		try {
			HSSFWorkbook wb = new HSSFWorkbook();
			HSSFSheet sheet = wb.createSheet();
			
			
			//第一个样式和输出(边框)
			HSSFCellStyle style = wb.createCellStyle();
			style.setBorderBottom(HSSFCellStyle.BORDER_THIN); //设置底线和颜色
			style.setBottomBorderColor(HSSFColor.BLACK.index);
			style.setBorderLeft(HSSFCellStyle.BORDER_THIN); //设置左边线和颜色
			style.setLeftBorderColor(HSSFColor.BLACK.index);
			style.setBorderRight(HSSFCellStyle.BORDER_THIN); //设置右边线和颜色
			style.setRightBorderColor(HSSFColor.BLACK.index);
			style.setBorderTop(HSSFCellStyle.BORDER_THIN); //设置上面线和颜色
			style.setTopBorderColor(HSSFColor.BLACK.index);
			HSSFRow row = sheet.createRow(0);
			
			HSSFCell cell = row.createCell(0);
			cell.setCellValue(new HSSFRichTextString("hello"));
			cell.setCellStyle(style);

			
			row = sheet.createRow(1);
			cell = row.createCell(1);
			cell.setCellValue(new HSSFRichTextString("hello"));
			//第二个样式和输出(背景/前景色)
			style = wb.createCellStyle();
			style.setFillBackgroundColor(HSSFColor.ORANGE.index); //添加背景色,内容看不清楚
			style.setFillPattern(HSSFCellStyle.BIG_SPOTS);
			row = sheet.createRow(2);
			cell = row.createCell(2);
			cell.setCellValue(new HSSFRichTextString("hello"));
			cell.setCellStyle(style);

			style = wb.createCellStyle();
			style.setFillForegroundColor(HSSFColor.ORANGE.index); //添加前景色,内容看的清楚
			style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
			row = sheet.createRow(3);
			cell = row.createCell(3);
			cell.setCellValue(new HSSFRichTextString("hello"));
			cell.setCellStyle(style);

			//第三个样式和输出(字体)
			HSSFFont font = wb.createFont(); //设置字体的样式
			font.setFontHeightInPoints((short) 8); //字体大小
			font.setFontName("Arial"); //什么字体
			font.setItalic(false); //是不倾斜
			font.setStrikeout(false); //是不是划掉
			font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); //字体加粗

			style = wb.createCellStyle(); //引用字体的这个样式
			style.setFont(font);

			row = sheet.createRow(4); //输出看结果
			cell = row.createCell(4);
			cell.setCellValue(new HSSFRichTextString("BJ10012-1241"));
//			cell.setCellStyle(style);

			//第四样式和输出（自定义颜色）
			style = wb.createCellStyle(); //设置颜色样式，后面定义颜色的值
			style.setFillForegroundColor(HSSFColor.LIME.index);
			style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
			row = sheet.createRow(5);
			cell = row.createCell(5);
			cell.setCellValue(new HSSFRichTextString("BJ10012-1241"));
//			cell.setCellStyle(style);
			HSSFPalette palette = wb.getCustomPalette(); //定义颜色的值
			palette.setColorAtIndex(HSSFColor.LIME.index, (byte) 255, (byte) 0,
					(byte) 0);

			//第五样式和输出（水平和垂直对齐）
			style = wb.createCellStyle();
			style.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平居中
			style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);//垂直居中
			row = sheet.createRow(6);
			cell = row.createCell(6);
			cell.setCellValue(new HSSFRichTextString("BJ10012-1241"));
			cell.setCellStyle(style);

			//设置一个标题样式            
			style = wb.createCellStyle();
			font = wb.createFont(); //设置字体的样式
			font.setFontHeightInPoints((short) 8); //字体大小
			font.setFontName("Arial"); //什么字体
			font.setItalic(false); //是不倾斜
			font.setStrikeout(false); //是不是划掉
			font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); //字体加粗
			style = wb.createCellStyle(); //引用字体的这个样式
			style.setFont(font);
			style.setBorderBottom(HSSFCellStyle.BORDER_THIN); //设置底线和颜色
			style.setBottomBorderColor(HSSFColor.BLACK.index);
			style.setBorderLeft(HSSFCellStyle.BORDER_THIN); //设置左边线和颜色
			style.setLeftBorderColor(HSSFColor.BLACK.index);
			style.setBorderRight(HSSFCellStyle.BORDER_THIN); //设置右边线和颜色
			style.setRightBorderColor(HSSFColor.BLACK.index);
			style.setBorderTop(HSSFCellStyle.BORDER_THIN); //设置上面线和颜色
			style.setTopBorderColor(HSSFColor.BLACK.index);
			style.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平居中
			style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);//垂直居中
			style.setFillForegroundColor(HSSFColor.ORANGE.index); //添加前景色,内容看的清楚
			style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

			row = sheet.createRow(7);
			cell = row.createCell(7);
			cell.setCellValue(new HSSFRichTextString("BJ10012-1241"));
			cell.setCellStyle(style);

			//输出文件
			FileOutputStream fileOut = new FileOutputStream("workbook.xls");
			wb.write(fileOut);
			fileOut.close();
			System.out.println("ok");
		} catch (Exception e) {
			e.printStackTrace();
		}

	}
}